Savin 3740NF Instruction manual

3700R/3740
Refrigerated Sampler
Installation and Operation Guide
Part #60-3703-176 of Assembly #60-3704-105
Copyright © 1996. All rights reserved, Teledyne Isco, Inc.
Revision X, April 18, 2006
Foreword
This instruction manual is designed to help you gain a thorough understanding of the
operation of the equipment. Teledyne Isco recommends that you read this manual
completely before placing the equipment in service.
Although Teledyne Isco designs reliability into all equipment, there is always the possibility of a malfunction. This manual may help in diagnosing and repairing the malfunction.
If the problem persists, call or e-mail the Teledyne Isco Technical Service Department
for assistance. Simple difficulties can often be diagnosed over the phone.
If it is necessary to return the equipment to the factory for service, please follow the
shipping instructions provided by the Customer Service Department, including the
use of the Return Authorization Number specified. Be sure to include a note
describing the malfunction. This will aid in the prompt repair and return of the
equipment.
Teledyne Isco welcomes suggestions that would improve the information presented in
this manual or enhance the operation of the equipment itself.
Teledyne Isco is continually improving its products and reserves the right to
change product specifications, replacement parts, schematics, and instructions without notice.
Contact Information
Customer Service
Phone:
(800) 228-4373
(USA, Canada, Mexico)
(402) 464-0231
(Outside North America)
Fax:
(402) 465-3022
Email:
IscoCSR@teledyne.com
Technical Service
Phone:
Email:
(800) 775-2965
(Analytical)
(800) 228-4373
(Samplers and Flow Meters)
IscoService@teledyne.com
Return equipment to: 4700 Superior Street, Lincoln, NE 68504-1398
Other Correspondence
Mail to:
P.O. Box 82531, Lincoln, NE 68501-2531
Email:
IscoInfo@teledyne.com
Web site:
www.isco.com
Revised September 15, 2005
3700R/3740 Refrigerated Sampler
Safety
3700R/3740 Refrigerated Sampler
Safety
General Warnings
Before installing, operating, or maintaining this equipment, it is
imperative that all hazards and preventive measures are fully
understood. While specific hazards may vary according to
location and application, take heed in the following general
warnings:
WARNING
This instrument has not been certified for use in
“hazardous locations” as defined by the National Electrical
Code.
WARNING
Avoid hazardous practices! If you use this instrument in
any way not specified in this manual, the protection
provided by the instrument may be impaired; this will
increase your risk of injury.
AVERTISSEMENT
Éviter les usages périlleux! Si vous utilisez cet instrument
d’une manière autre que celles qui sont specifiées dans ce
manuel, la protection fournie de l’instrument peut être
affaiblie; cela augmentera votre risque de blessure.
Hazard Severity Levels
This manual applies Hazard Severity Levels to the safety alerts,
These three levels are described in the sample alerts below.
CAUTION
Cautions identify a potential hazard, which if not avoided, may
result in minor or moderate injury. This category can also warn
you of unsafe practices, or conditions that may cause property
damage.
WARNING
Warnings identify a potentially hazardous condition, which
if not avoided, could result in death or serious injury.
DANGER
DANGER – limited to the most extreme situations
to identify an imminent hazard, which if not
avoided, will result in death or serious injury.
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3700R/3740 Refrigerated Sampler
Safety
Hazard Symbols
The equipment and this manual use symbols used to warn of
hazards. The symbols are explained below.
Hazard Symbols
Warnings and Cautions
The exclamation point within the triangle is a warning sign alerting you of
important instructions in the instrument’s technical reference manual.
The lightning flash and arrowhead within the triangle is a warning sign alerting you of “dangerous voltage” inside the product.
Pinch point. These symbols warn you that your fingers or hands will be seriously injured if you place them between the moving parts of the mechanism
near these symbols.
Symboles de sécurité
Ce symbole signale l’existence d’instructions importantes relatives au produit dans ce manuel.
Ce symbole signale la présence d’un danger d’électocution.
Risque de pincement. Ces symboles vous avertit que les mains ou les
doigts seront blessés sérieusement si vous les mettez entre les éléments
en mouvement du mécanisme près de ces symboles
Warnungen und Vorsichtshinweise
Das Ausrufezeichen in Dreieck ist ein Warnzeichen, das Sie darauf
aufmerksam macht, daß wichtige Anleitungen zu diesem Handbuch
gehören.
Der gepfeilte Blitz im Dreieck ist ein Warnzeichen, das Sei vor “gefährlichen
Spannungen” im Inneren des Produkts warnt.
Vorsicht Quetschgefahr! Dieses Symbol warnt vor einer unmittelbar drohenden Verletzungsgefahr für Finger und Hände, wenn diese zwischen die
beweglichen Teile des gekennzeichneten Gerätes geraten.
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3700R/3740 Refrigerated Sampler
Table of Contents
Section 1 Introduction
1.1 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.1 3700 Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1.2 3740 Refrigerator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Programmable Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.1 Flexible Sampling Intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.2 Multiplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.3 Storm Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.4 Accurate Sample Volumes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.5 Flexible Start Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Foreign Languages and Metric Units of Measure . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 Delivery System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4.1 Liquid Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4.2 Pump Tubing and Suction Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4.3 Strainers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5 Bottle Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.6 Power Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.7 Interfacing Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.7.1 Isco Flow Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.7.2 Samplink for Sampling Data Retrieval . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.7.3 Non-Isco Flow Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.7.4 Liquid Level Actuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.8 Technical Specifications, Controls, and Connectors . . . . . . . . . . . . . . . . . . . . . . . .
1-1
1-1
1-2
1-2
1-3
1-3
1-4
1-4
1-4
1-5
1-5
1-5
1-6
1-6
1-6
1-7
1-7
1-7
1-8
1-8
1-9
1-9
Section 2 Setup and Operating Procedures
2.1 Summary of Setup Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.2 Suction Line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.2.1 Attaching the Vinyl Suction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.2.2 Attaching the Teflon Suction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.2.3 Strainers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.2.4 Intake Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.2.5 Routing of the Suction Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.3 Connection to a Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.4 Connection to a Flow Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.5 Sample Bottle Rack or Bottle Locating Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.5.1 Installing the 24 or 8 Bottle Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.5.2 Sample Bottle Rack with 24 Sample Bottles . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2.5.3 Sample Bottle Rack with 8 Sample Bottles . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2.5.4 Bottle Locating Base with 2 Sample Bottles . . . . . . . . . . . . . . . . . . . . . . . 2-11
2.5.5 Composite Sampling with the 3700R/3740 . . . . . . . . . . . . . . . . . . . . . . . . 2-11
2.5.6 Single Bottle Composite Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
2.6 Operation of the Refrigerator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
2.6.1 Automatic Defrosting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Section 3 Programming Guidelines
3.1 Description of Sampling Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
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3.1.1 Sample Events and the Sampling Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.2 Types of Samples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.2.1 Types of Sample Pacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.2.2 Types of Sample Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.3 Types of Sampling Available in Extended Programming Mode . . . . . . . . . . . . . . . 3-6
3.3.1 Nonuniform Time Intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3.3.2 Extended Multiplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3.3.3 Multiple-Bottle Compositing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
3.3.4 Stops and Resumes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
3.4 Stormwater Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
3.4.1 Storm-Event Sample Distribution Schemes . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3.5 Programming Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3.5.1 Operating States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3.5.2 Programming Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
3.5.3 Configure Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
3.6 Programming Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
3.6.1 Following Display Cues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
3.6.2 Keypad Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
3.6.3 Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17
3.7 Programming Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
3.8 Basic Programming Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
3.9 Configure Sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38
3.9.1 Set Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39
3.9.2 Bottles and Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39
3.9.3 Portable or Refrigerated Sampler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39
3.9.4 Portable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40
3.9.5 Refrigerated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40
3.9.6 Continuous Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40
3.9.7 Bottle Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41
3.9.8 Cumulative Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41
3.9.9 Suction Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41
3.9.10 Liquid Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42
3.9.11 Programming Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43
3.9.12 Load Stored Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45
3.9.13 Save Current Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-46
3.9.14 Flow Mode Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-48
3.9.15 Nonuniform Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-48
3.9.16 Calibrate Sampler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-48
3.9.17 Sampling Stop/Resume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-49
3.9.18 Start Time Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-49
3.9.19 Enable Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-50
3.9.20 Event Mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-51
3.9.21 Purge Counts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-52
3.9.22 Tubing Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-53
3.9.23 Program Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-53
3.9.24 Sampler ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-53
3.9.25 Run Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-53
3.9.26 Exit Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-54
3.10 Extended Programming Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-57
3.10.1 Extended Mode Sample Pacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-58
3.10.2 Extended Mode Sample Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-58
3.10.3 Extended Mode Sample Volumes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-59
3.10.4 Extended Mode Key Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-59
3.11 Start Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-63
3.12 Stormwater Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68
3.12.1 Storm Sampling Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68
3.13 Programming the Sampler for a Storm Routine . . . . . . . . . . . . . . . . . . . . . . . . . 3-72
3.13.1 First Section: First Bottle Group Settings . . . . . . . . . . . . . . . . . . . . . . . . 3-72
3.13.2 Second Section: Second Bottle Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-75
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3.14 Foreign Languages and Metric Units of Measure . . . . . . . . . . . . . . . . . . . . . . . . 3-81
3.15 Programming Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-82
3.16 Standby State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-98
3.16.1 Operable Keys in Standby State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-99
3.17 Displayed Selections and Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-102
3.17.1 Additional Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-102
3.17.2 Display Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-103
3.17.3 Source of Sample Event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-106
3.17.4 Error Messages and Missed Samples . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-107
3.18 Run State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-107
Section 4 Options and Interfacing Equipment
4.1 Connections to External Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.1 Isco Flow Meters and Flow Loggers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.2 Non-Isco Flow Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.3 4-20 mA Flow Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.4 1640 Liquid Level Actuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1
4-1
4-2
4-3
4-3
Section 5 Routine Maintenance and Service
5.1 Weather and Corrosion Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.2 Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.2.1 Tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.2.2 Sample Bottles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.3 Cleaning Protocols for Priority Pollutants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5.3.1 Cleaning Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5.4 Cleaning the Refrigerator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
5.4.1 Cleaning the Bottle Locating Base and Sample Bottles . . . . . . . . . . . . . . . 5-4
5.5 Pump Tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
5.5.1 Inspection of Pump Tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
5.5.2 Removing the Pump Tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
5.5.3 Installing a New Pump Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
5.6 Suction Line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
5.6.1 Cleaning Suction Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
5.6.2 Replacement Vinyl Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
5.6.3 Replacement Teflon Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
5.7 1/4 and 3/8 Inch ID Vinyl Suction Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
5.7.1 Bulk Suction Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
5.8 3/8 Inch ID Teflon Suction Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
5.9 Internal Desiccant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
5.9.1 Renewing the Desiccant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
5.10 3700 Controller Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
5.11 Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
5.12 Refrigerator Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
5.13 Refrigeration System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
5.14 Servicing the 3700 Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
5.15 If Serious Problems Occur . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
5.16 Access to Electronic Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
5.17 Removal of the Distributor Gear Case Assembly . . . . . . . . . . . . . . . . . . . . . . . . 5-15
5.18 Removal of the Pump Gear Case Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15
5.19 Precautions for Servicing CMOS
Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
5.20 Preliminary Electronics Troubleshooting Steps . . . . . . . . . . . . . . . . . . . . . . . . . 5-18
5.20.1 Circuit Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18
5.20.2 Main Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
5.20.3 Pump Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20
5.21 Sample Event Cycle and Delivery of Sample Volumes . . . . . . . . . . . . . . . . . . . . 5-22
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5.21.1 Peristaltic Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
5.21.2 Volumetric Determination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
5.21.3 Sample Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
Appendix A Replacement Parts Lists
Appendix B Accessories
B.1
B.2
B.3
B.4
B.5
B.6
General Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Suction Lines and Strainers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Power Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Interfacing Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Bottle Conversion Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Bottles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
B.6.1 24 Bottle Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
B.6.2 8 Bottle Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
B.6.3 2 Bottle and Single Bottle Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Appendix C Display Index
Appendix D Calculating Flow Increment Between Samples
Appendix E Glossary
Appendix F Material Safety Data Sheets
List of Figures
2-1 Tube Coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-2 Tube Coupling with Suction Line and Pump Tubing . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-3 Standard Weighted Polypropylene Strainer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2-4 Stainless Steel Strainer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2-5 CPVC Weighted Strainer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2-6 Flow Meter Connection and Suction Line Port . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2-7 Interior of the 3700R/3740 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
2-8 Liquid Deflector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
2-9 Sample Bottle Rack with 24 Plastic Sample Bottles . . . . . . . . . . . . . . . . . . . . . . . 2-9
2-10 Sample Bottle Rack with 24 Glass Sample Bottles . . . . . . . . . . . . . . . . . . . . . . 2-10
2-11 Sample Bottle Rack with 8 Glass Sample Bottles . . . . . . . . . . . . . . . . . . . . . . . 2-10
2-12 Sample Bottle Rack with 8 Plastic Sample Bottles . . . . . . . . . . . . . . . . . . . . . . 2-11
3-1 Sequential Sample Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3-2 Samples-Per-Bottle Multiplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3-3 Bottles-Per-Sample Multiplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3-4 Multiple-Bottle Compositing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
3-5 storm distribution Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3-6 Interactive State Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
3-7 3700 Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
3-8 Basic Programming Mode: Program Sequence Structure . . . . . . . . . . . . . . . . . . 3-21
3-9 Event Mark and Bottle Number Signal Output . . . . . . . . . . . . . . . . . . . . . . . . . . 3-52
3-10 Programming Mode: Sample Pacing and Distribution . . . . . . . . . . . . . . . . . . . 3-60
3-11 Extended Programming Mode: Sample Volume and Key Times . . . . . . . . . . . 3-61
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3-12 Extended Programming Mode: STORM Programming . . . . . . . . . . . . . . . . . . . 3-62
3-13 Simplified Start Time Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-64
3-14 Start Time Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-66
3-15 Start Time Diagram for Nonuniform Time Routines . . . . . . . . . . . . . . . . . . . . 3-67
3-16 Storm Sampling: Flow Pacing for the Second Bottle Group . . . . . . . . . . . . . . . 3-73
3-17 Storm Sampling: Time Pacing for the Second Bottle Group . . . . . . . . . . . . . . . 3-74
3-18 Start Time Diagram for STORM Routines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-80
4-1 6-pin Connector Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4-2 4-20 mA Sampler Input Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4-3 1640 Liquid Level Actuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
5-1 Liquid Detector and Pump Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
5-2 Interior of Liquid Detector and Pump Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
5-3 Location of 10 Screws on the Control Box Frame . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
5-4 Control Box Internal Desiccant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
5-5 Mounting the Control Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
5-6 3740 Electrical Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
5-7 Refrigeration Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
5-8 Underside of the Control Box Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
5-9 Main Circuit Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
5-10 Control Box Tray Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
5-11 Distributor Gear Case Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18
5-12 3700 Main Circuit Board Component Layout . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21
5-13 Optical Counter PCB Component Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22
C-1 Time Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
List of Tables
1-1
2-1
3-1
3-2
3-3
3-4
3-5
3-6
3-7
4-1
4-2
C-1
3700R Technical Specifications, Controls, and Connectors . . . . . . . . . . . . . . . . . . 1-9
Strainers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Configure Option Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Bottle Volume Settings for Standard Bottle Configurations . . . . . . . . . . . . . . . . 3-41
Sampling Capabilities Through the Program Sequence . . . . . . . . . . . . . . . . . . . 3-44
Factory Configure Option Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-54
Factory Program Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-56
Start Time Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-65
Recommended Configurations for Storm Sampling . . . . . . . . . . . . . . . . . . . . . . . 3-70
Flow Meter Connector Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Printer Connector Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Display Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
List of Examples
Checking the Configure Option Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time-Paced Sequential Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flow-Paced Sequential Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time-Paced Multiplexed (samples-per-bottle) Sampling . . . . . . . . . . . . . . . . . . . . . . .
Flow-Paced Multiplexed (bottles-per-sample) Sampling . . . . . . . . . . . . . . . . . . . . . . .
Time-Paced Composite Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Load Stored Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Save Current Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time-Paced Sampling: Uniform Intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time-Paced Multiplexed (samples-per-bottle) Sampling . . . . . . . . . . . . . . . . . . . . . . .
Extended Flow-Paced Multiplexed (bottles-per-sample) Sampling. . . . . . . . . . . . . . .
3-24
3-27
3-28
3-30
3-32
3-35
3-38
3-46
3-47
3-82
3-84
3-86
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3700R/3740 Refrigerated Sampler
Table of Contents
Flow-Paced Sampling / Time-Based Bottle Sets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-88
Time-Paced Samples at Nonuniform Intervals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-91
Time-Paced Samples at Nonuniform Clock Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-93
Sampling with Stops and Resumes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-94
Storm Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-96
Program Started Later Than Programmed Start Time . . . . . . . . . . . . . . . . . . . . . . . 3-100
Program Started Later Than Programmed 1st Switch Time . . . . . . . . . . . . . . . . . . 3-101
Program Started Later Than Programmed Stop Time . . . . . . . . . . . . . . . . . . . . . . . 3-101
Reviewing the Sampling Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-105
Run State Displays: Time-Paced Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-108
Run State Displays: Flow-Paced Sampling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-109
Run State Displays: Composite Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-110
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3700R/3740 Refrigerated Sampler
Section 1 Introduction
This section contains an overall description of the sampler and a
list of technical specifications.
1.1 Description
The 3700R/3740 Refrigerated Sampler is a programmable liquid
sampler designed for sequential sampling. It is one of Teledyne
Isco’s 3700 Series of portable and refrigerated samplers. The
extensive sampling capabilities, flexible programming, and
durable construction make the 3700R Sampler ideally suited for
general purpose or priority pollutant sampling. The 3700R
Sampler also provides storm-paced sampling capabilities
designed to meet the EPA requirements for storm water run off
monitoring.
The 3700R Sampler offers a number of sophisticated features.
The following sections provide an overview of the unit’s sampling
capabilities and a variety of interfacing equipment. A brief discussion of this interfacing equipment is placed at the end of this
section. Examples of interfacing equipment include:
• Isco Flow Meters for flow-paced sampling and sampler
enable control.
• Laptop computers that collect, store, or transfer the
same data from a sampler in the field to a computer in
the office.
The 3700R Refrigerated Sampler consists of the 3740 Sampler
Refrigerator with the 3700 controller installed on the refrigerator at the factory. (The 3740 is discussed in Section 1.1.2.) The
controller is housed in the watertight control box mounted on the
top of the refrigerator. However, the refrigerator’s lower compartment is not watertight.
1.1.1 3700 Controller
The controller consists of a microprocessor with software
embedded in a PROM (Programmable Read Only Memory) and
supporting electronics. The controller runs the pump, moves the
distributor, responds to the keypad, and presents information on
the display. The controller provides for manual control of the
sampler; for example, you can run the pump forward with the
pump forward key or initiate a manual sample with the manual
sample key. It governs all automatic sampling according to
user-selectable program settings.
The control panel, containing the 40 character alphanumeric
LCD (Liquid Crystal Display) and keypad, is located on the top of
the control box. The 24 position keypad is used to enter program
parameters and direct the following controls: o n/off, pump
reverse, pump forward, stop the pump, start sampling, resume
sampling, display the operating status, and move the distributor
1-1
3700R/3740 Refrigerated Sampler
Section 1 Introduction
arm to the next bottle. A desiccator is installed in the control box
to prevent moisture damage to the electronics, pump, and distributor systems.
1.1.2 3740 Refrigerator
If you want to convert a presently owned 3700 Portable Sampler
into a refrigerated unit, or to have both portable and refrigerated
options with the same controller, the 3740 Sampler Refrigerator
is available. The 3740 includes all the parts necessary to attach
the controller from a portable sampler to the refrigerator.
Instructions for mounting the controller on the refrigerator can
be found in Section 5.10
The exterior of the refrigerator is constructed of stainless steel.
Foamed in place insulation stiffens the sample compartment.
The plastic interior will not support bacterial growth or retain
odors. Both the controller cover and sample compartment may be
individually padlocked. The door has a magnetic gasket which
seals against a stainless steel bezel.
The refrigerator’s thermostat is calibrated at the factory to be
accurate at 4°C (39°F). A forced-air condensing coil and front
ventilation allow the unit to be positioned close to a wall or in a
corner with clearance required only for the controller cover to
open. Wrap-around construction of the evaporator plate provides
quick and efficient cooling of the sample compartment.
Defrosting is automatic under normal operating conditions. The
technical specifications of the 3700R/3740 are found in Table 1-1.
1.2 Programmable
Features
An intuitive user interface allows the 3700R Sampler to be programmed for both simple and complex sampling schemes. The
LCD prompts you through the programming process by presenting a choice or a question on the sampler’s LCD. Programming the sampler is a matter of responding to displayed
prompts with the keypad. Two programming modes, “basic” and
“extended,” are standard with the 3700R Sampler. The basic programming mode allows you to set up typical sampling routines
easily and efficiently. The extended programming mode expands
the versatility of the sampler by providing options which allow
you to create complex sampling routines.
The LCD not only prompts you through the programming
process, but also allows you to closely monitor a sampling routine
as it is executed.
The LCD displays pertinent information about the routine – for
example, the time of the next sample – and notifies you of any
problems encountered during the routine. As the routine
progresses, the sampler logs (stores) key information about the
results of the routine. The results include the start time, any halt
and resume times, time of samples, and cause of any missed
samples. This information is accessible during a routine or after
a sampling routine is finished. You can view this information
from the sampler’s display. You can also retrieve the information
with an Isco Field Printer (no longer sold by Teledyne Isco) or a
laptop computer running Teledyne Isco’s Samplink® software.
1-2
3700R/3740 Refrigerated Sampler
Section 1 Introduction
1.2.1 Flexible Sampling
Intervals
The 3700R is designed to collect up to 24 separate sequential
(discrete) samples and is fully programmable for true composite
sampling. Both sequential and composite samples may be collected at user-definable time intervals (time pacing) or at equal
flow volume intervals using flow pulse inputs from an external
flow meter (flow pacing). The flow interval is set from 1 to 9999
flow pulses.
The sampler offers two types of time-pacing: uniform and nonuniform. Uniform time-paced samples may be taken at regular
time intervals, a sample every 15 minutes, for example, The
interval between samples can be set from 1 minute to 99 hours,
59 minutes in 1 minute intervals. Using the extended programming mode, you can specify up to 999 (or bottle volume
dependent) non-uniform time intervals in minutes. For example,
you can program the sampler to take the first six samples at 10
minutes intervals, then four more samples at 15 minute
intervals, and so on. Nonuniform time intervals can be from 1 to
999 minutes in 1 minute intervals.
Nonuniform times can be specified in a clock-time format by
entering a time and date for each sample. The sampler will
accept up to 99 nonuniform clock times.
Additionally, the Sampling Stops and Resumes feature allows
you to create an intermittent sampling schedule. With this
extended programming feature, you can sample only during key
periods of the day. For example, you may wish to sample only
during the hours of 6:00 a.m. to 8:00 a.m., and 5:00 p.m. to 7:00
p.m.. You can enter up to 12 sampling stops and 12 resumes.
Sampling stops and resumes can be used with both flow- and
time-paced routines and with uniform and nonuniform time
intervals.
1.2.2 Multiplexing
In addition to sequential sampling, which places one sample in
each bottle, the sampler provides three standard types of multip l e x e d s a m p l e d i s t r i b u t i o n : s a m p l e s - p e r- b o t t l e ,
bottles-per-sample multiplexing, and multiple bottle compositing. Samples-per-bottle multiplexing allows you to collect a
series of small composite samples. By depositing several samples
in each bottle, the contents of each bottle represent an average of
the flow stream during the sampling period. In
bottles-per-sample multiplexing, equal sample volumes can be
placed in up to 24 bottles at each sample event.
Bottles-per-sample multiplexing is ideal for situations where you
need identical sets of samples – when you need to use more than
one preservative, for example. Both time-paced and flow-paced
sequential samples can be multiplexed.
The third type of multiplexing, multiple bottle compositing, is
accessible through the extended programming mode. Multiple
bottle compositing places more than one sample volume into
more than one bottle. At each sample event, a sample volume is
placed in several bottles, in sets of up 24 bottles. Multiple bottle
compositing combines bottles-per-samples multiplexing and
samples-per-bottle multiplexing; it is applicable to situations
1-3
3700R/3740 Refrigerated Sampler
Section 1 Introduction
where you need a series of identical sets of samples. Multiple
bottle compositing can be used when you need to acquire a series
of larger volume composite samples by taking a number of
smaller samples and distributing them over several bottles.
In the extended programming mode, you can switch multiplexed
bottles or bottle sets after a programmed number of samples
have been deposited or after a programmed period of time has
elapsed. Both methods can be used with either time-paced or
flow-paced routines. By specifying the number of samples to be
deposited, you can control the volume of each bottle precisely. By
specifying the sets to be switched after specific time periods, you
can control the time frame for a series of sample volumes. This is
especially useful for flow-paced sampling. Although the flow rate
may vary, each bottle or bottle set represents a fixed time period.
1.2.3 Storm Sampling
The 3700R Sampler’s storm capabilities are ideal for monitoring
storm water runoff. The sampler allows you to divide the bottles
into two groups. The first group of bottles is normally reserved
for a first flush grab sample.
The second bottle group receives the flow weighted composite
samples. Samples can be distributed in either group sequentially
or in any of the three types of multiplexing.
Four bottle configurations are available for STORM sampling:
the standard 24 bottle configuration with either 1000 ml plastic
or 350 ml glass bottles, an 8 bottle configuration with either 2
liter plastic bottles or 1.8 liter glass bottles, a 4 bottle configuration with either 2.5 gallon glass or 2 gallon plastic bottles, and
a 2 bottle configuration with 2.5 gallon plastic or glass bottles.
(Call the factory for 4 bottle configuration.)
STORM sampling takes full advantage of the sampler enable
programming available through the Teledyne Isco 4200 Series
Flow Meters, 4100 Series Flow Loggers, and Flowlink® software.
(This manual collectively refers to the 4200 Series Flow Meters
and the 4100 Series Flow Loggers as “Isco Flow Meters.”) You can
program the flow meter or flow logger to monitor the flow stream
for “storm” conditions— a specific amount of rainfall, for example
— and enable the sampler when it detects those conditions.
1-4
1.2.4 Accurate Sample
Volumes
The sampler can be programmed to take sample volumes of 10 to
9990 milliliters. Equipped with the patented LD90 liquid
presence detector, the 3700R Sampler delivers accurate,
repeatable sample volumes in changing head conditions. The
LD90 is a non-wetted liquid presence detector. It detects virtually
any pumpable liquid, and, because it is non-wetted, sample conductivity, viscosity, temperature, and composition do not affect
detection. Although it is not normally necessary, samples can be
calibrated, if desired.
1.2.5 Flexible Start Times
A sampling routine can be programmed to use a specific start
time and date or a start time delay. The sampler will accept a
specific start time and date up to one month in advance of the
3700R/3740 Refrigerated Sampler
Section 1 Introduction
current date. The start time delay is the period between the time
you press the start sampling key and the time the routine
actually starts. It is adjustable from 0 (zero) to 9999 minutes.
Other features are available. Program storage allows you to store
up to three separate programs, eliminating the need to
reprogram the sampler for recurrent sampling routines. A
program lock prevents unauthorized program alterations. When
enabled, a password must be entered before any program settings can be changed, although program settings can be viewed
at any time.
1.3 Foreign Languages
and Metric Units of
Measure
The 3700R Sampler provides displays in French, German, and
Spanish. Additionally, the software supports entries in metric
units of measure. Samplers using French and German language
displays support metric units for suction line and suction head
measurements. Metric units include volumes in milliliters,
suction head and suction line length in decimeters, and suction
line inside diameter (ID) in millimeters.
Samplers operating with English displays support either English
or metric units for suction line and suction head measurements.
(Sample volume units are always entered in milliliters,
regardless of the selected language.)
1.4 Delivery System
The 3700R Sampler uses a peristaltic pump for sample collection.
The sample liquid is under pumped flow at all times; there are no
metering chambers or gravity-fed internal tubing. Each sampling
cycle includes an air pre-sample purge and a post-sample purge
to clear the suction line both before and after sampling. These
features make the 3700R Sampler ideal for both “suspended
solids” and “toxic materials” sampling. Cross contamination
between samples is minimized, sites for sediment accumulation
in the system are eliminated. Materials in contact with the
sample fluid are limited to the strainer, suction line, pump
tubing, and collection bottles. The system can be easily and
safely cleaned by simply replacing relatively inexpensive lengths
of tubing.
Pump speed is approximately 250 RPM which generates a
velocity sufficient to obtain representative samples. The
pumping rate of 3500 ml per minute is generated when using 3/8
inch ID suction line at 3 ft of head. The line transport velocity,
using the same suction line and head, is 2.5 ft per sec. Volumetric
accuracy is not significantly affected by pump speed since the
delivered volume is based on a patented electronic count of the
number of pump revolutions.
1.4.1 Liquid Detector
The LD90 gives the 3700R Sampler the ability to deliver
accurate, repeatable sample volumes regardless of changing
head conditions. Typical sample volumes are accurate to within
10% of the programmed volume and repeatable to within ± 10
ml. The detector and a programmable setting provide for auto-
1-5
3700R/3740 Refrigerated Sampler
Section 1 Introduction
matic rinsing of the suction line when concerns of cross contamination arise. A programmable setting for sampling retries is
available.
If the suction line becomes clogged and no liquid is detected in
the line, the sampler can be programmed to repeat a purge cycle
– up to three times – to clear the clogged line.
1.4.2 Pump Tubing and
Suction Lines
The pump tubing is Silastic™ medical grade silicon rubber.
Liquid is transferred from the source to the pump through either
1
/4 or 3/8 inch ID vinyl or 3/8 inch ID Teflon® suction tubing. The
pump tubing and suction lines are easily replaced, minimizing
the need for cleaning. The sampler automatically monitors pump
tubing wear: a tubing warning indication is reported on the
display when the pump revolution count exceeds a user-specified
wear limit. The 3/8 inch ID vinyl suction lines are shipped from
the factory with our standard weighted polypropylene strainer
installed on one end of the suction line and a tubing coupling on
the other end.
1.4.3 Strainers
In addition to the standard strainer, two stainless steel strainers
are available for priority pollutant applications: a larger unit for
normal flow and a smaller unit for low flow situations. A
weighted, CPVC-coated strainer is available for sampling from
highly acidic flow streams.
1.5 Bottle Configurations
A number of sample containers are available for both sequential
sampling and composite conversions:
24-Bottle Configurations
• 350 ml glass bottles (round) with Teflon lined caps.
• 1000 ml polypropylene bottles (wedge shaped) with
polyethylene foam lined caps.
8-Bottle Configurations
• 2.0 liter polyethylene bottles (round) with unlined caps.
• 1.8 liter glass bottles (round) with Teflon
lined caps.
4-Bottle Configurations
• 7500 ml (2 gallon) polyethylene bottles (rectangular)
with unlined caps.
• 9400 ml (2.5 gallon) glass bottles (round) with Teflon
lined caps.
Note
The 4 bottle configuration is not a standard configuration, but is
available. Call the factory.
2-Bottle Configurations
• 9400 ml (2.5 gallon) glass (round) bottles with Teflon
lined caps.
1-6
3700R/3740 Refrigerated Sampler
Section 1 Introduction
• 7500 ml (2 gallon) polyethylene (rectangular) bottles
with unlined caps.
Single Bottle Composite Configurations
• 9400 ml (2.5 gallon) glass (round) bottle with Teflon
lined cap.
• 9400 ml (2.5 gallon) polyethylene (round) bottle with
unlined cap.
• With minor changes to the refrigerator, you can install a
larger composite sample bottle (4 or 5.5 gallon round
polyethylene). Call the factory.
Note
The 12-bottle configuration (2.5 liter polyethylene bottles) is
not an option for the 3700R. It is only available for the 3700FR
and 6712FR Refrigerated Samplers.
1.6 Power Sources
The 3740 operates from 120 VAC, 60 Hz power or 240 VAC, 50/60
Hz power depending on how the refrigerator was ordered. A 12
VDC power converter, built into the refrigerator, supplies power
to the controller.
In the case of critical sampling, the sampler’s controller may be
powered by an external 12 VDC battery, as described in Section
2.3. This allows sampling to continue even if a power failure
causes the refrigerator’s cooling system to stop functioning.
Also available from Teledyne Isco is the Battery Backed Power
Pack which, under normal conditions, trickle-charges an internal
nickel-cadmium battery, and, in the event of a line power failure,
supplies 12 VDC power from the battery to the sampler’s controller.
1.7 Interfacing
Equipment
1.7.1 Isco Flow Meters
A full line of accessories and interfacing equipment is available
to help you adapt the sampler to your specific application; some
of the more common items are briefly noted below. Other key
accessories are noted throughout this manual, where appropriate. A full list of accessories is found in Appendix B.
The 4200 Series Flow Meters, 2100 Series Flow Modules, and
4100 Series Flow Loggers, and UniMag Closed-Pipe Flow Meters,
are collectively called “flow meters” in this manual. The 3700R
will accept flow pulses from all Isco Flow Meters for flow-paced
sampling. Isco Flow Meters are equipped with a sampler enable
feature. They can inhibit a 3700R Sampler until the level of the
flow stream reaches a predetermined height or “set point”; when
that height is reached, the flow meter enables the sampler and
starts the sampling routine. If the level of the stream falls below
the set point, the flow meter can disable the sampler and halt the
routine.
When equipped with a rain gauge, the 4100 Series Flow Loggers
and the 4200 Series Flow Meters monitor rainfall. The flow
meter can be programmed to enable the sampler when the measured amount of rainfall reaches a predetermined set point.
1-7
3700R/3740 Refrigerated Sampler
Section 1 Introduction
Set points or pairs of set points — pairs can be level and rainfall
rates, level and elapsed time, rainfall and elapsed time, and so on
— form the sampler enable control condition. A control condition
is simply the set of parameters defining the conditions in which a
flow meter will enable the sampler. For example, a flow meter
can be programmed with a control condition which is satisfied
when the flow meter detects 1/4 inch of rainfall in 15 minutes.
While level control conditions can be entered directly at the flow
meter front panel, most control conditions must be downloaded
to the flow meter from an IBM ® compatible computer running
Teledyne Isco’s Flowlink® software.
In addition to enable control conditions, Teledyne Isco’s flow
meters provide an internal memory module. When programmed
with the Flowlink software, the flow meters store level or flow
rate readings, rainfall measurements, and sample event data
from the samplers. The stored data, which expands the information available from the sampler’s results displays, can be
retrieved with a computer running the Flowlink software. For
more information on sampler enable control conditions and data
retrieval, refer to the Flowlink Help files.
The 3700R Sampler sends event marks to both Teledyne Isco and
non-Isco Flow meters each time a sample is taken. This information is recorded by the flow meter. The event mark can be
adjusted according to the type of flow meter used.
1.7.2 Samplink for Sampling
Data Retrieval
Teledyne Isco provides an additional interfacing product for collecting data from the sampler’s memory. Samplink runs on a
laptop computer that can be taken to the sampling installation to
collect the data by connecting to the port on the side of the
sampler controller labeled PRINTER. Samplink collects the data
and formats it into two files: a text file and a Flowlink compatible
sample event file. The text file can be loaded into a word processor for editing. Samplink’s text file contains the same two
reports produced by the Field Printer (no longer sold). The first
report contains sampler status information and program settings. The second report contains the sampling results. Because
the text file is pre-formatted into report form, you can use DOS
printing commands to print the file without editing with a word
processor. The sample event files are identical to those created by
Flowlink when it retrieves sample event data from a flow meter.
Because these files are fully compatible with Flowlink, Flowlink
can use the files in its sampling reports and graphs.
1.7.3 Non-Isco Flow Meters
You can connect certain non-Isco Flow meters directly to a 3700
for flow-paced sampling. The flow meter must have an isolated
contact closure of at least 25 milliseconds to provide acceptable
flow pulses to the sampler. The frequency of the contact closure
must be directly proportional to total flow.
If the flow signal is not compatible with Teledyne Isco’s standard,
Teledyne Isco offers special interfacing devices. See Sections
4.1.2 and 4.1.3.
1-8
3700R/3740 Refrigerated Sampler
Section 1 Introduction
1.7.4 Liquid Level Actuator
1.8 Technical
Specifications,
Controls, and
Connectors
The Liquid Level Actuator is used to provide level-sensitive
control of the sampler. The actuator can be used as a simplified
alternative to a flow meter.
The technical specifications, controls, and connectors of the
3700R/3740 are listed in Table1-1. Refer to Figure 2-6 for a
picture of the controls and connectors.
Table 1-1 3700R Technical Specifications, Controls, and Connectors
Physical Specifications
Physical Size
Height: 45.75 inches (116 cm).
Width: 24.25 inches (62cm).
Depth: 25 inches (64cm).
Dry weight
145 lb (65.8 kg).
Operational Temperature Range
32°F to 120°F (0°C to 49°C).
Control Box only
(does not include refrigerator)
Self Certified NEMA 4X and 6 ratings (Submersible, watertight, dust-tight,
and corrosion resistant).
Temperature set point accuracy
± 1.8°F (1°C) at 39°F (4°C).
Pull-down time from 75°F (24°C) to
39°F (4°C)
30 minutes, typical.
Recovery time, door open 1 minute with 10 minutes, typical.
unit operating at 39°F (4°C), 75°F
(24°C) ambient
Power Specifications
Sampler Controller Power
Requirement
12 VDC AC power converter.
Voltage
120 V, 60 Hz (240 Volt, 50/60 Hz available).
Current: Running
Starting
3.3 amp, typical 120 volts. (1.65 amp, typical 240 volts 50/60 HZ).
Controller Internal 3V Lithium
Battery Capacity
5 years, minimum (maintains internal logic and program settings).
Sampler standby current 10 mA, maximum.
12 amp, typical 120 volts. (6 amp, typical 240 volts).
Pump and Tubing Specifications
Suction Tubing (intake)
3 to 99 foot lengths of:
1
/4-inch ID vinyl
3
/8 -inch ID vinyl
3/8 -inch ID Teflon® lined
Suction Lift
26 feet (7.9 m), maximum.
Pumping Rate
(at 3 feet of head)
1
Line Transport Velocity
(at 3 feet of head)
1/4-inch ID suction tubing: 5.1 f t/sec.
3
/8 -inch ID suction tubing: 2.9 f t/sec.
/4-inch ID suction tubing: 3000 m l/minute.
3
/8-inch ID suction tubing: 3500 m l/minute.
1-9
3700R/3740 Refrigerated Sampler
Section 1 Introduction
Table 1-1 3700R Technical Specifications, Controls, and Connectors (Continued)
Clock Specifications
Real Time Clock Accuracy
1 minute/month, typical.
Sample Specifications
Sample Volume Accuracy
With the liquid detector enabled and automatic compensation for head: typically, the greater of ± 10% or ± 20 ml, over a head range of 1 to 12 feet and
sampler supply voltage of 10 to 13 volts.
Sample Volume Repeatability
± 10 ml, typical.
Sample Frequency
Selectable from one minute to 99 hours, 59 minutes in 1 minute increments
between consecutive samples, or from 1 to 9999 flow pulses in single pulse
intervals. Up to 999 nonuniform times may be entered in minute intervals or
up to 99 times as specific clock times.
Flow Meter Signal Specifications
Flow Meter Signal Requirements
5 to 15 volt DC pulse or isolated contact closure of at least 25 milliseconds
in duration. (4-20 mA or pulse duration signal may be converted with
optional interface unit).
Controls
CONTROL
SETTING
FUNCTION
Thermostat
OFF, WARMER, COOLER,
4°C (39°F).
Turns the refrigeration system on/off,
selects the sample temperature.
Connectors
CONNECTOR
TYPE
FUNCTION
12 VDC
2-pin female cable mounted.
12 VDC power supply for sampler.
Printer
6-pin female panel mounted.
Connects 3700R to Teledyne Isco
Field Printer or laptop computer.
Flow Meter
6-pin male panel mounted.
Connects 3700R to external
flow meter.
Sampler
6-pin female cable mounted.
Connects the flow meter to the
sampler’s controller.
120 or 240 VAC
3-pin grounded male line cord.
Supplies line voltage for the unit.
1-10
3700R/3740 Refrigerated Sampler
Section 2 Setup and Operating Procedures
2.1 Summary of Setup
Procedure
The following sections detail the preparations made before using
the refrigerator:
1. Install the sampler. The suction line can extend to a liquid
source up to 99 feet from the sampler, note that the maximum lift for the peristaltic pump with either the Teflon or
vinyl line is 26 feet. When installing the sampler, be sure
the head - the vertical distance between the level of the liquid source and the pump - is no greater than 26 feet. The
pump will not be able to deliver samples for heads of 26
feet or greater.
2. Do not install the refrigerator in a location where the lower
compartment could become submerged.
3. Connect the sampler to a 120 VAC (240 VAC optional) power
source. Turn the refrigerator on.
4. Attach the suction line.
5. Place the suction line inlet properly in the liquid source.
6. Connect the sampler to a flow meter, if required.
7. Program the sampler. Programming guidelines are in Section
3.
8. Calibrate the sample volume, if desired.
9. Start the sampling routine.
2.2 Suction Line
The suction line is the piece of tubing that extends from the
sampler’s pump tubing intake, at the top of the liquid detector, to
the liquid source. There are three standard suction lines
available: plasticized vinyl tubing in 1/4- inch (0.64 cm) or 3/8-inch
(0.94 cm) inside diameters, or FEP Teflon with a polyethylene
cover in 3/8-inch inside diameter. The polyethylene cover over the
0.02 inch (0.051 cm) wall Teflon tubing prevents the Teflon liner
from kinking or collapsing in service and protects it from
abrasion and other damage. The vinyl suction tubing contains a
very low PPM (parts per million) level of phenols. If this affects
your samples, use the Teflon suction line.
Both vinyl and Teflon lines can be cut to any length from 3 to 99
feet in whole foot increments: lengths of 4 ft, not 3.5 ft. The controller will accept only whole numbers as suction line lengths. To
insure the accuracy of the sampler, the suction line length
entered must equal that of the actual line measurement. When
programming the sampler, you must enter the inside diameter,
type, and length of suction line used.
2-1
3700R/3740 Refrigerated Sampler
Section 2 Setup and Operating Procedures
Cut the line to the shortest length feasible: this aids the downhill
routing. Avoid loops of coiled suction line which may hold
residual amounts of liquid which would cross contaminate
sample volumes. A shorter line will also extend battery life and
pump tube life because a shorter pumping cycle is used to deliver
the sample volume.
2.2.1 Attaching the Vinyl
Suction
Vinyl suction line is attached to the pump tubing with the tube
coupling as illustrated in Figures 2-1 and 2-2. Two couplings are
available, one for each size of vinyl line.
Each coupling has two color-coded nylon clamps attached to the
stainless steel ferrule. The black clamp secures the pump tube to
the coupling. The white clamp secures the suction line. To attach
the line or tubing to the coupling, push it onto the appropriate
side of the ferrule and tighten the clamp by squeezing the finger
pads together. To loosen a clamp, twist the two sides of the clamp
until the teeth disengage.
Figure 2-1 Tube Coupling
Figure 2-2 Tube Coupling with Suction Line and Pump Tubing
2-2
3700R/3740 Refrigerated Sampler
Section 2 Setup and Operating Procedures
2.2.2 Attaching the Teflon
Suction
The Teflon line is attached to the pump tubing by inserting the
line into the pump tubing and securing it with a suitable clamp.
2.2.3 Strainers
The 3/8 inch ID vinyl suction lines are shipped from the factory
with our standard weighted polypropylene strainer (Figure 2-3)
installed on one end of the suction line and a tubing coupling on
the other end.
Additionally, Teledyne Isco offers two low flow stainless steel
strainers (Figure 2-4) for 1/4 inch ID and 3/8 inch ID suction lines.
For installation in Teflon suction line, heat the end of the suction
line to make it more flexible, then carefully screw the strainer’s
threaded connector into the suction line.
For sampling from highly acidic flow streams, a weighted plastic
CPVC strainer is available (Figure 2-5).
Figure 2-3 Standard Weighted Polypropylene Strainer
Figure 2-4 Stainless Steel Strainer
Figure 2-5 CPVC Weighted Strainer
The strainer prevents solid particles over a specific diameter
from entering and clogging the suction line. It is recommended
for bottom sampling or sampling from streams containing large
solids. The 1/4 inch strainers supplied for use with the 1/4 inch ID
suction line have 15/64 inch (0.56 cm) diameter holes. The 3/8 inch
strainers supplied for use with the vinyl or Teflon 3/8 inch ID
suction line have 23/64 inch (0.9 cm) diameter holes.
2-3
3700R/3740 Refrigerated Sampler
Section 2 Setup and Operating Procedures
2.2.4 Intake Placement
The proper placement of the sampler intake assures the collection of representative samples. The intake should be placed in
the main flow, not in an eddy or at the edge of flow. The vertical
position of the intake in the flow is important. An intake at the
bottom may result in excess heavy solids and no floating materials, while placement at the top may result in the opposite.
2.2.5 Routing of the Suction
Line
Route the suction line from sampler to sampling point so that it
slopes continuously downhill. This helps drain the suction line
when the peristaltic pump purges the line and minimizes the
possibility of cross contamination. When the sampler is used in
near freezing temperatures, thoroughly draining the suction line
minimizes the possibility of frozen liquid clogging the line.
Note
Although the suction line can extend to a liquid source as many
as 99 feet from the sampler, note that the maximum lift for the
peristaltic pump with either the Teflon or vinyl line is 26 feet.
When installing the sampler, be sure the head - the vertical distance between the level of the liquid source and the pump - is
no greater than 26 feet. The pump will not be able to deliver
samples for heads of 26 feet or greater.
The suction line tends to float in deep flow streams, dislodging
the line and strainer. The chart below shows the maximum
depths you can submerge the lines and strainers without risks of
flotation. At depths exceeding the safe depths, anchor the line
and strainer securely.
Table 2-1 Strainers
Strainer
Standard Weighted
Polypropylene
Stainless Steel
Low Flow
CPVC
2.3 Connection to a Power
Source
Vinyl
Vinyl
Teflon
/4-inch (6 mm) 3/8-inch (9 mm) 3/8-inch (9 mm)
1
—
22 feet (6.7 m)
15 feet (4.5 m)
14 feet (4.3 m)
22 feet (6.7 m)
15 feet (4.5 m)
—
4 feet (1.2 m)
4 feet (1.2 m)
The 3740 operates from 120 VAC, 60 Hz power (optionally 240
VAC, 50/60 Hz). To provide power for the refrigerator and controller, plug the refrigerator’s line cord into an appropriate
source. A 12 VDC power converter, built into the refrigerator,
supplies power to the controller. A 3 Volt lithium battery, with a
minimum service life of 5 years, maintains the controller’s
real-time clock and program settings when power is disconnected.
The sampler’s controller may be temporarily powered by an
external 12 VDC battery when AC power is not available. Simply
disconnect the power cable shown in Figure 2-6 and attach the
2-4
3700R/3740 Refrigerated Sampler
Section 2 Setup and Operating Procedures
b a t t e r y c o n n e c to r t o t h e s am p l e r ’s p o w e r c o n n e c t o r. A
rechargeable nickel-cadmium battery is most commonly used;
however, lead-acid batteries are available.
The Teledyne Isco Nickel-Cadmium battery has an operating
capacity of seven standard sampling programs after an 18 hour
charge. (A standard sampling program is defined to be 24
samples at a rate of one 200 ml sample per hour, using 10 feet of
3
/8 inch vinyl suction line at a 5 foot head.)
The Teledyne Isco Lead-Acid Battery has an operating capacity
of 11 standard sampling programs. The sampler may also be
powered by an Isco 120 VAC 50/60 Hz or 240 VAC 50/60 Hz
Power Pack. Both power packs may also be used to recharge the
Teledyne Isco batteries.
2.4 Connection to a Flow
Meter
To permit flow proportional sampling, the sampler’s controller
must be connected to an external flow meter. This connection is
made to the flow meter connector (shown in Figure 2-6) located
on the controller. A small port is provided on the right side of the
control base for routing the flow meter cable. Refer to Section 4
for information on interfacing devices to interface the sampler
with non-Isco Flow meters.
2.5 Sample Bottle Rack or
Bottle Locating Base
The sample bottle rack is used with both the 24 and 8 bottle configurations to hold the bottles in place inside the refrigerator.
The bottle locating base is used with the 2 bottle configuration to
position the bottles in place inside the refrigerator. All three configurations are described in detail below.
If you want to use a bottle configuration other than the one presently being used, conversion kits are available. The conversion
kits are listed below. Contact the factory for pricing and part
numbers of the various kits.
• 24 bottle to 8 bottle conversion kit.
• 24 bottle to 2 bottle conversion kit.
• 8 bottle to 24 bottle conversion kit.
• 8 bottle to 2 bottle conversion kit.
• 2 bottle to 24 bottle conversion kit.
• 2 bottle to 8 bottle conversion kit.
2.5.1 Installing the 24 or 8
Bottle Configuration
Install the bottle rack, with bottles, in the refrigerator by sliding
it into the unit until it drops over the two ramps which hold it in
place. The five posts and two ramps which locate the bottles
under the distributor arm are adjusted at the factory; however,
manufacturing tolerances may result in misalignment between
the bottles and distributor arm. Check the alignment by rotating
the distributor arm using the NEXT BOTTLE key. If there is any
misalignment, adjust the five posts and two ramps until proper
alignment is attained.
2-5
3700R/3740 Refrigerated Sampler
Section 2 Setup and Operating Procedures
Flow Meter
Cable
Power Cable
Flow Meter
Cable Port
Thermostat
Knob
Flow Meter
Connector
Suction Line
Port
Control Base
Figure 2-6 Flow Meter Connection and Suction Line Port
Note
Install the bottle rack so that bottle number 1 is oriented
towards the front of the refrigerator.
2.5.2 Sample Bottle Rack
with 24 Sample Bottles
The sample bottle rack will hold either 24 round 350 ml, glass
sample bottles with Teflon lined caps or 24 wedge-shaped 1000
ml, polypropylene sample bottles with foamed-polyethylene lined
caps.
The glass bottles are held in place by a stainless steel retaining
ring installed inside the circle of bottles. The ring expands to
hold the bottles firmly against the interior of the wire rack. The
plastic bottles are held in place by a plastic, funnel-shaped
retaining ring that rests on top of the slanted portion of the
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3700R/3740 Refrigerated Sampler
Section 2 Setup and Operating Procedures
bottles and fits down inside the circle of bottles. It is held in place
by three large draw cords attached to the bottom of the rack.
Each of these draw cords is stretched up and hooked onto a corresponding projection located on the ring.
The sets of glass and plastic bottles are interchangeable in the
sample bottle rack. However, since each set of bottles has its own
retaining ring, only one type of bottle can be used at a time; they
cannot be mixed. The order in which the bottles are filled is indicated on the plate on the bottom of the rack. Since the bottle rack
is used for both 24 and 8 bottle configurations, the plate is numbered 1 through 24 and 1 through 8.
Note
All 24 bottles must be installed in the rack to ensure that they
are properly held in place.
The bottle rack is removed by slightly lifting the front edge of the
rack to disengage it from the two ramps, indicated in Figure 2-7,
and pulling it straight out of the refrigerator. Be careful not to
catch the distributor arm. Place the bottle caps on the bottles
before attempting to remove them so the sample does not spill.
To remove the glass sample bottles:
1. Lift each bottle out of the bottle rack leaving the retaining
ring in place.
2. Once all bottles are removed, lift the retaining ring out of the
rack by squeezing the two finger grips.
3. Place the new glass bottles in the rack as shown in Figure
2-10. Make sure all bottles are fitted properly in the rack.
Note the four metal triangles on the inside of the rack which
rotationally align the bottles.
4. Replace the bottle retaining ring.
To remove the plastic sample bottles:
1. Disconnect the draw cords from the projections on the
retaining ring.
2. Lift out the retaining ring.
3. Remove the full bottles.
4. Place the new plastic bottles in the rack as shown in Figure
2-9. Note the four metal triangles on the inside of the rack
which rotationally align the bottles.
5. Replace the bottle retaining ring making sure that all the bottles fit properly into the rack.
2.5.3 Sample Bottle Rack
with 8 Sample Bottles
The sample bottle rack, with the 8 bottle adaptor, will hold either
8, 1.8 liter, glass sample bottles with Teflon lined caps or 8, 2
liter, polyethylene sample bottles with caps. The glass and plastic
bottles are held in place by an 8 bottle adapter that hooks over
the four bottle alignment triangles located on the inside edge of
the bottle rack. The glass and plastic bottles are interchangeable
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3700R/3740 Refrigerated Sampler
Section 2 Setup and Operating Procedures
in the sample bottle rack. Combinations of glass and plastic
bottles may be used if desired. Note: All 8 bottles should be
installed in the rack to ensure that they are properly held in
place.
The order in which the bottles are filled is indicated on the plate
located on the bottom of the rack. Since the bottle rack is used for
both 24 and 8 bottle configurations, the plate is numbered 1
through 24 and 1 through 8.
The bottle rack is removed by slightly lifting the front edge of the
rack to disengage it from the two ramps, indicated in Figure 2-7,
and pulling it straight out of the refrigerator. Be careful not to
catch the distributor arm. To remove the glass or plastic sample
bottles, simply lift the bottles straight out of the rack. Place the
new bottles in the rack as shown in Figures 2-11 and 2-12. Make
sure all bottles are fitted properly in the rack.
Cross contamination caused by splashing between bottles is
eliminated by the use of a liquid deflector. The liquid deflector is
coated with PTFE (polytetrafluoroethylene) Teflon. It is installed
by pushing the short width part of the deflector up between the
flat surface of the distributor arm and the pump tubing. See
Figure 2-8.
Distributor Arm
(Positioned over
Bottle #1)
Bottle Locating
Ramps
Figure 2-7 Interior of the 3700R/3740
2-8
3700R/3740 Refrigerated Sampler
Section 2 Setup and Operating Procedures
Liquid Deflector
Figure 2-8 Liquid Deflector
Figure 2-9 Sample Bottle Rack with 24 Plastic Sample Bottles
2-9
3700R/3740 Refrigerated Sampler
Section 2 Setup and Operating Procedures
Bottle #1
Figure 2-10 Sample Bottle Rack with 24 Glass Sample Bottles
Figure 2-11 Sample Bottle Rack with 8 Glass Sample Bottles
2-10
Front
↓
3700R/3740 Refrigerated Sampler
Section 2 Setup and Operating Procedures
Figure 2-12 Sample Bottle Rack with 8 Plastic Sample Bottles
2.5.4 Bottle Locating Base
with 2 Sample Bottles
The locating base can be permanently installed over the wire
rack mounting plate. It is held in place by five screws, washers,
and nuts and a bottle locating base retainer. Four of the screws,
washers, and nuts replace the four locating posts on the wire
rack mounting plate. The fifth screw, washer, and nut and the
bottle locating base retainer hold the center of the bottle locating
base to the wire rack mounting plate. The locating base will hold
the 2.5 gallon glass or plastic bottles.
To install the bottles, center them within the bosses provided on
the locating base. Bottle number one is the left bottle when
looking at the front of the refrigerator.
2.5.5 Composite Sampling
with the 3700R/3740
The 3700R can be adapted for composite sampling. Use the following steps to convert the sampler for composite sampling.
1. Open the refrigerator and remove the sample bottle rack or
the bottle locating base.
2. Unscrew the distributor arm nut and remove the distributor
arm.
3. Replace the pump tube with a 40.5 in. (103 cm) composite
pump tube and route the pump tube into the refrigerator and
through the hole in the support bracket. The hole in the support bracket is located in directly in front of the distributor
shaft.
If the refrigerator was previously used as a 2 bottle sampler,
no hole is present in the support plate. The tubing should be
routed around the support plate and into the bottle.
4. Place the composite sample bottle inside the refrigerator.
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3700R/3740 Refrigerated Sampler
Section 2 Setup and Operating Procedures
2.5.6 Single Bottle
Composite Sampling
Two and one-half (2.5) gallon glass and plastic containers are
available from Teledyne Isco for composite sampling. Each container lid has a hole for routing the pump tube into the container
to keep the pump tube from vibrating.
When using the single bottle, remove the distributor arm and
bottle rack. Place the single bottle in the center of the refrigerator and route the pump tube into the hole in the container lid.
Ensure that no more than two inches of the tubing extends into
the container.
Note
Since the 3700R/3740 is designed for use as a sequential
refrigerated sampler, no provision has been made for fail-safe
weight activated shut-off. This means the sampler will not automatically terminate sampling when the sample bottle is full;
instead, the sampler will terminate sampling at the end of the
routine. When programming, be sure the total number of samples deposited will not exceed the capacity of the bottle.
2.6 Operation of the
Refrigerator
To operate the refrigerator, turn the thermostat knob, shown in
Figure 2-6, to the desired sample temperature. The interior air
temperature should reach the set value within 20 to 30 minutes.
The refrigerator’s thermostat is calibrated in sample temperature. That is, if the temperature is set at 4°C (39°F), the temperature of the sample after being in the refrigerator will be 4°C ±
1°C, although the refrigerator air temperature may vary more
than this due to the nature of the refrigeration cycle.
Note
IMPORTANT: If the thermostat knob is turned to the lowest
setting, the sample may freeze.
2.6.1 Automatic Defrosting
Under normal conditions, you should not need to defrost the
refrigerator manually. The cooling coil temperature always cycles
from below freezing (when the compressor is running) to above
freezing (when the compressor is off) during the normal refrigeration cycle.
If the unit is used in hot, humid conditions, you may need to
defrost the unit after several days of operation. Turn the thermostat off and allow the refrigerator to defrost. The refrigerator
is equipped with a water diverting tray and a drain tube to route
defrost water to an evaporating tray in the rear of the refrigerator. Water in the tray is evaporated by the warm air from the
condensing system. The refrigerator compressor may not start
immediately when the thermostat is turned on or turned to a
lower setting due to the action of the compressor overload relay.
After a short time, the compressor will start and initiate the
cooling cycle.
2-12
3700R/3740 Refrigerated Sampler
Section 3 Programming Guidelines
This section discusses in detail the sampling features of the
3700R Sampler and the procedures for programming your
sampler.
Teledyne Isco has found that the most effective way to learn to
program the sampler is to read this section with a sampler in
front of you. The time that you spend in the office or laboratory
actually programming the sampler and observing its operation is
usually time well spent.
If you are already familiar with the sampling capabilities of the
3700R Sampler, you may prefer to begin with the section entitled
Programming Introduction on page 3-8. This section introduces
the specifics of programming the sampler.
• Description of Sampling Operations contains a
description of the sampling cycle, as well as the operations.
• The Types of Samples section discusses sample types
that can be taken in both basic and extended mode with
the 3700 Sampler.
• The Programming Introduction section discusses the
sampler’s program structure and introduces both basic
and extended programming modes.
• The Operating States section discusses the sampler’s
three operating states.
• Introduction to the Programming Procedures describes
the basic programming mode.
• The sections Using the Keypad to Respond to Displays,
Keypad Description, and Displays discuss programming
the sampler with the keypad.
• Basic Programming provides examples for the basic
programming mode.
• The Configure Sequence section discusses how to tailor
the sampler to your specific application.
• The Extended Programming Mode section discusses the
mode and presents programming examples.
• Foreign Languages and Metric Units of Measure
discusses adjusting the sampler for a foreign language
and or metric units.
• The Standby State section discusses your options when
the sampler is in standby.
3-1
3700R/3740 Refrigerated Sampler
Section 3 Programming Guidelines
• The Run State section discusses what is occurring when
your sampler is operating in the run state.
3.1 Description of
Sampling Operation
3.1.1 Sample Events and the
Sampling Cycle
This information introduces the types of sampling performed by
the 3700R and the terminology that describes those capabilities.
A sample event is the complete cycle involved in taking a sample.
Although the cycle varies according to the program settings that
define the sampling routine, the cycle described here follows the
typical sequence. The information presented here is intended to
provide you with a frame of reference for the remainder of this
section.
1. A sample event occurs when either the programmed interval has expired or programmed flow volume has passed
through the stream. The 3700R takes a time-paced sample
when an internal clock reaches the time selected for the
sample. For flow-paced samples, the 3700R takes a sample
after receiving a specific of flow pulses from the flow meter.
Each flow pulse counts for a specific flow volume as measured by the flow meter.
2. When the time-interval expires or pulse-count reaches a
user-programmed flow volume, the distributor moves to
the bottle that will receive the sample.
3. For the pre-sample purge, the pump rotates in reverse. The
pre-sample purge is an air purge of the suction line and
inlet that clears the line of any accumulated debris. It also
purges residual liquid to avoid cross-contamination of samples.
4. The pump direction changes, moving forward to fill the
suction line up to the liquid detector.
5. The sample-volume measuring portion of the sampling
cycle begins after liquid fills the suction line to the liquid
detector. The pump rotates forward until the programmed
volume of liquid is delivered to the sample bottle. (In this
manual, the amount of liquid delivered to the bottle is
referred to as the “sample volume.”)
6. The pump direction changes, pumping in the reverse direction for the post-sample purge. Like the pre-sample purge,
the post-sample purge air purges the suction line. After the
post-sample purge, the pump shuts off.
7. The sample interval resets and the cycle resumes at Step
1.
3.2 Types of Samples
3-2
The 3700R Sampler is principally designed to collect sequential
(discrete) samples. However, you can program it to collect a
number of other types of samples. The 3700 controller has two
programming modes: Basic and Extended. The basic programming mode is used for conventional routines, which include
the types of sampling described in this section. Section 3.3 discusses this in detail.
3700R/3740 Refrigerated Sampler
Section 3 Programming Guidelines
You can characterize sample types by sample distribution and
sample pacing. Sample distribution is the order in which samples
are placed in the bottles. Sample pacing is the interval between
samples.
3.2.1 Types of Sample Pacing
There are two types of sample pacing: time-pacing and
flow-pacing. In time-paced sampling, the interval between
samples is a time interval. In flow-paced sampling, the interval
between samples is a certain volume of liquid that has passed a
measuring point in a flow stream. Flow-paced sampling requires
a flow meter. (You can interface the 3700 controller with Isco
Flow meters, flow loggers, and certain non-Isco Flow meters.)
The flow meter measures the flow quantity and sends a pulse for
every predetermined flow quantity to the sampler. The sampler
totalizes the number of pulses received from the flow meter and
collects a sample when the total reaches a programmed number.
3.2.2 Types of Sample
Distribution
There are two primary types of sample distribution: sequential
and composite sampling. In a sequential sample, each bottle
receives one sample. A sequential sample represents a
“snapshot” of the flow stream at a particular point in time.
Figure 3-1 shows a diagram of sequential sample distribution. In
a composite sample, the individual samples are combined – “composited” – into a single container. A composite sample represents
an average of the characteristics of the flow stream over the total
elapsed time of sampling.
Bottle Number (8 of 24 Bottles)
1
2
3
1
2
3
4
4
5
6
7
8
5
6
7
8
Sample Event
Figure 3-1 Sequential Sample Distribution
Note
The 3700R Sampler is fully programmable for both sequential and
composite sampling; however, in addition to programming the controller for composite sampling, you must convert the sampler
mechanically for single-bottle compositing. This requires the composite conversion kit which contains the extra equipment needed to
adapt the sampler for composite sampling. Conversion procedures
are discussed in the instruction sheets provided with the conversion
kit.
3-3
3700R/3740 Refrigerated Sampler
Section 3 Programming Guidelines
You can combine the types of sample pacing and sample distribution. Thus, you can take time- or flow-paced sequential
samples and time- or flow-paced composite samples. Each combination of pacing is noted below.
Time-Paced Sequential – In a time-paced sequential sample,
samples are collected at equal increments of time. Each bottle
receives one sample.
Flow-Paced Sequential – In a flow-paced sequential sample,
samples are collected at equal volumes of flow, as measured by
an associated flow meter. Each bottle receives one sample.
Time-Paced Composite – In a composite time sample, the individual samples are combined into a single container. Samples are
collected at equal increments of time.
Flow-Paced Composite – In a composite flow sample, the individual samples are combined into a single container. Samples are
collected at equal increments of flow volume, as measured by an
associated flow meter.
Multiplexing – Yo u c a n m u l t i p l e x b o t h t i m e - p a c e d a n d
flow-paced sequential samples. Multiplexing places more than
one sample in a bottle at different sample events or places a
sample in several bottles at the same sample event. There are
t w o t y p e s o f m u l t i p l e x i n g : s a m p l e s - p e r- b o t t l e a n d
bottles-per-sample.
Samples-per-Bottle Multiplexing – I n s a m p l e s - p e r- b o t t l e
multiplexing, the 3700R deposits a number of individual samples
in the same bottle. Samples-per-bottle multiplexing is useful
when you need to collect a series of small composite samples. In
samples-per-bottle multiplexing, users can modify the normal
sampling cycle (relocate distributor, pre-sample purge, sample
delivery, post-sample purge) by altering the number of times the
distributor is relocated.
Because a bottle will receive more than one sample from more
than one sample event, the distributor does not relocate to a new
bottle at each sample event. At the first sample event, the distributor relocates, if necessary, to the appropriate bottle. The
normal sampling cycle is completed. At the next sample event,
the distributor does not relocate, and a second sample is
deposited into the same bottle.
Compositing multiple samples continues up to the programmed
number of samples. After the last sample is deposited in the
bottle, the sampler pauses until another sample event occurs, the
distributor then rotates to the new bottle position, and multiple
samples are deposited into the new bottle. Figure 3-2 illustrates
samples-per-bottle multiplexing.
3-4
3700R/3740 Refrigerated Sampler
Section 3 Programming Guidelines
Bottle Number (8 of 24 Bottles)
3
4
5
6
1
2
2
4
6
8
1
3
5
7
7
8
Sample Event
Figure 3-2 Samples-Per-Bottle Multiplexing
Bottles-Per-Sample Multiplexing – I n b o t t l e s - p e r- s a m p l e
multiplexing, you fill a programmed number of bottles at each
sample event. (The programmed number of bottles is a bottle set;
as many as 24 bottles can be used.) Bottles-per-sample multiplexing is useful when you need a sample that exceeds the
capacity of your bottles. It is also useful when you need sets of
identical samples; for example, when using more than one preservative.
When you use bottles-per-sample multiplexing, you modify the
normal sampling cycle (relocate distributor, pre-sample purge,
sample delivery, post-sample purge) by delaying the complete
post-sample purge until sample volumes have been delivered to
each bottle of the set. Instead, the pump reverses until the pump
tubing is purged just beyond the liquid detector. When the
purged liquid passes the detector, the distributor moves to the
next bottle, and the pump begins pumping forward to deliver the
next sample. This repeats until each bottle of the set is filled. A
full post-sample purge is completed at the end of the sample
event. The sampler then pauses until the next sample event
occurs, at which time the cycle repeats for the following bottle
set. Figure 3-3 illustrates bottles-per-sample multiplexing.
1
2
1
1
Bottle Number (8 of 24 Bottles)
3
4
5
6
2
2
3
3
7
8
4
4
Sample Event
Figure 3-3 Bottles-Per-Sample Multiplexing
3-5
3700R/3740 Refrigerated Sampler
Section 3 Programming Guidelines
3.3 Types of Sampling
Available in Extended
Programming Mode
The extended programming mode expands the variations of
sample pacing and distribution. The extended features listed
below are used in more complex sampling routines. Note,
however, that the sampling capabilities described in the Section
3.2 are available in both the basic and the extended programming modes. Note also that STORM programming is
available only in the extended programming mode.
3.3.1 Nonuniform Time
Intervals
In the extended programming mode, the 3700 controller can pace
samples at nonuniform time intervals. With nonuniform time
intervals, the sampler takes samples at irregular intervals,
rather than at equal intervals.
Nonuniform time intervals are typically used in run-off studies,
often in conjunction with an Isco 1640 Liquid Level Actuator.
Nonuniform time intervals let you collect a number of samples at
short intervals after a rainfall or other event occurs and collect
remaining samples at widening intervals. For example, when you
use the sampler with the actuator in a run-off study, the actuator
turns on the sampler when the liquid level of the flow stream
rises to contact the actuator’s probe. With nonuniform time
intervals, the sampler can collect samples frequently when the
flow rate is highest and less frequently as the flow rate
decreases.
You can also use nonuniform times to simulate flow-paced sampling. When the flow rate varies predictably, using nonuniform
time intervals allows you to take samples at equal flow volumes.
As the flow rate increases, you can take samples at equal flow
volumes by decreasing the time interval. As the flow rate
decreases, you can increase the time interval.
When you use nonuniform times, the time interval between each
sample event is programmable. You can enter nonuniform times
in two ways: in minutes or in clock times. The first method,
minutes, allows you to enter the number of sample events spaced
at intervals defined in minutes: 12 samples at 5-minute
intervals, six samples at 10-minute intervals, four samples at
15-minute intervals, and so on.
You can also enter a specific clock time and date for each sample
event: sample event 1 at 6:00 on April 20, sample event 2 at 6:30
on April 20, sample event 3 at 7:15 on April 20. You can specify
as many as 999 sample events spaced in nonuniform minutes, or
as many as 99 events as clock times. (If a routine requires a large
number of nonuniform times, you can save the routine with the
program storage feature so that you do not have to reenter the
nonuniform times.) You can use nonuniform time intervals with
sequential, multiplexed, and composite sampling.
3.3.2 Extended Multiplexing
3-6
Multiplexing is somewhat more flexible in the extended programing mode than in the basic mode. In the extended mode, you
can switch multiplexed bottles or bottle sets after a programmed
number of samples have been deposited, or after a programmed
period of time has elapsed. Under most conditions, we recommend you switch bottles or sets after collecting a programmed
3700R/3740 Refrigerated Sampler
Section 3 Programming Guidelines
number of samples. This allows you to control the number of
samples in each bottle. When you switch bottles or sets on a time
basis, the total volume of each bottle or bottle set may vary in
samples-per-bottle multiplexing.
3.3.3 Multiple-Bottle
Compositing
The extended programming mode offers a third multiplexing possibility: multiple-bottle compositing. Multiple-bottle compositing
combines samples-per-bottle and bottles-per-sample multiplexing by depositing multiple samples in a bottle set. At each
sample event, the sampler places a sample into each bottle of a
set. This is repeated until each bottle of the set contains a programmed number of samples. Figure 3-4 illustrates multiple
bottle compositing. You can switch the bottle sets after a programmed number of samples have been deposited or after a programmed period of time elapses. Multiple-bottle compositing is
useful when you want a series of identical sets of samples or a
larger volume composite sample than you can collect in one
bottle. You can use multiple-bottle compositing with time-paced
or flow-paced routines.
3.3.4 Stops and Resumes
The Sampling Stops and Resumes feature, available in the
extended programming mode, allows you to create an intermittent sampling schedule. You can program the sampler to stop
the routine at a specific time, and then resume the routine later.
You can enter as many as 12 stop times and 12 resume times.
Stops and resumes can be used with time-paced and flow-paced
routines and with routines programmed for nonuniform time
intervals.
1
2
Bottle Number (8 of 24 Bottles)
3
4
5
6
3
3
6
6
2
2
5
5
8
8
1
1
4
4
7
7
7
8
Sample Event Number
Figure 3-4 Multiple-Bottle Compositing
3.4 Stormwater Sampling
The 3700 controller’s STORM programming lets you meet stormwater monitoring requirements easily. The sampler’s STORM
pacing program divides the bottles of the 2, 4, 8, and 24 bottle
configurations into two separate groups. The first group receives
a first flush (time-paced) grab sample. The second bottle group
receives either a flow-paced or time-paced “composite” sample.
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3700R/3740 Refrigerated Sampler
Section 3 Programming Guidelines
3.4.1 Storm-Event Sample
Distribution Schemes
A bottle group can consist of one or more bottles. Thus, the
first-flush sample can be a large sample delivered to a single
bottle or distributed to several bottles with a multiplexing
scheme. The remaining samples can be distributed to the second
bottle group sequentially or according to any of the three
available multiplexing distribution schemes: bottles-per-sample,
samples-per-bottle, or multiple- bottle compositing. By dividing
the samples into multiple bottles, you can analyze the pollutant
concentration from each phase of the storm event. To obtain an
analysis of a composite sample, combine the contents of the
bottles into a composite for the grab sample and a composite for
the flow-paced samples.
Figure 3-5 shows a storm distribution scheme that combines
time-paced bottles-per-sample multiplexing with flow-paced
samples-per-bottle multiplexing. The program has allocated
bottles 1, 2, and 3 for the timed grab samples, and bottles 4
through 24 for flow-weighted samples. At each time-paced
sample event, the sampler places a single sample in the first
bottle group: bottles 1, 2, and 3. Each bottle of the second group
receives two samples per bottle.
Bottle Number (12 of 24 Bottles)
1
1
2
1
3
1
4
2
Time-paced
Time Bottle
5
2
6
2
7
Sample Event
8
9
1
1
1
4
6
8
1
1
1
3
5
7
1
1
9
Flow-paced
Flow Bottle
Figure 3-5 storm distribution Scheme
3.5 Programming
Introduction
3.5.1 Operating States
3-8
The sampler’s programming process is self-prompting. Prompts
displayed on the LCD step you through the programming
sequence in a logical order, indicating the needed value or option.
For example, the sampler will prompt you to enter settings for
the interval between samples (select either time-paced or
flow-paced intervals); sample volume in ml; and other operating
controls. These settings can be changed at any time. The sampler
accepts only appropriate values for the program settings and
rejects any unacceptable values. If you turn off the unit or the
power is disconnected, the lithium battery retains settings in the
sampler’s memory.
There are three operating states: the standby state where the
sampler is waiting for your instructions, the run state where the
sampler is running a sampling routine, and the interactive state,
which is used to program the sampler. Each state serves a different purpose and is discussed separately.
3700R/3740 Refrigerated Sampler
Section 3 Programming Guidelines
Standby State – In the standby state, the sampler is waiting for
your instructions. From standby, you can start a sampling
routine, placing the sampler in the run state. You can also access
the interactive state, which is discussed in an upcoming section.
Run State – In the run state, the sampler is executing the sampling routine and operating under program control. While the
sampling routine is executed, the LCD displays a number of messages communicating the sampler’s progress through the
routine.
It reports the current bottle or bottle set, current time or
flow-pulse count, and remaining time or pulse count to the next
sample. These messages vary according to the sampling routine.
As the routine progresses, the sampler creates a log of sampling
results that records pertinent information about each sample
event. The results include the time and date of each sample, the
number of pump counts occurring until liquid is detected for each
sample event, and any problems encountered.You can retrieve
results with the Display Status procedure, discussed in an
upcoming section in this section.
You can retrieve the results in the middle of a routine or when
the routine is done. The results remain in the sampler’s memory
until you start the sampler again. See the section Run State for
more information.
Interactive State – The interactive state lets you program the
sampler. The interactive state contains two branches: the
program sequence and the configure sequence. Figure 3-6 diagrams the structure of the interactive state. The program
sequence defines the sampling routine; it allows you to enter the
interval between samples, the number of samples in each bottle,
the sample size, and the start time. The configure sequence provides a number of setup options. Some configure options provide
equipment specifications: bottle sizes, suction-line diameters and
lengths, and so on. For example, the 3700 Standard can use different-sized sequential bottles: 350 ml and 1000 ml. You must
enter the correct bottle size so that the sampler can calculate the
range of sample volumes for a given number of samples and
prevent overfilling. Other options allow you to set the sampler’s
real-time clock, calibrate the sampler, or enable the password
program protection.
3.5.2 Programming Modes
The configure sequence also allows you to select either of the programming modes: basic or extended.
Basic Programming – Use the basic programming mode for
conventional sampling routines. In the basic programming mode,
you can take sequential or composite samples at uniform time
intervals or at flow-pulse intervals. You can multiplex samples, if
desired; both bottles-per-sample and samples-per-bottle multiplexing are available. You can control the start time of the
routine by entering a specific time and date or with the
adjustable start-time delay.
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Extended Programming – The extended programming mode
increases the number of available features, making more
complex sampling routines possible. For example, you can use
nonuniform time intervals, and create an intermittent sampling
schedule with the Stops and Resumes feature. Although all basic
programming features are available in the extended programming mode, the less frequently used features have been separated into the extended mode to simplify the programming
process.
Although the basic and extended program sequences vary in
detail, you can divide both into four sections: Sample Pacing
(interval between samples), Sample Distribution (number of
samples in each bottle), Sample Volume (sample size in ml), and
Key Times (start times or, in the extended mode, stop and
resume times). These sections are noted in the Program
Sequence section of the diagram shown in Figure 3-6.
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. . . STANDBY . . .
9:50:34
12-SEP-04
Display #1
[PROGRAM, CONFIGURE]
SAMPLER
Program
Configure
PROGRAM SEQUENCE
CONFIGURE SEQUENCE
Set Clock
Bottles and Sizes
Suction Line
Liquid Detector
Programming Mode
* Load Stored Program
* Save Stored Program
* Flow Mode Sampling
* Nonuniform Time
Calibrate Sampler
* Sampling Stop/Resume
Start Time Delay
Enable Pin
Event Mark
Purge Counts
Tubing Life
Program Lock
Sampler ID
Run Diagnostics
Exit Configuration
Sample Pacing
Sample Distribution
Sample Volumes and Suction Head
Key Times
PROGRAMMING
SEQUENCE
* Indicates Extended
Programming Mode
. . . STANDBY . . .
9:54:40
12-SEP-04
Figure 3-6 Interactive State Structure
Table 3-1 Configure Option Functions
Configure Option
Programming Mode Function
Set Clock
Basic & Extended
Sets the sampler’s real-time clock.
Bottles and Sizes
Basic & Extended
Sets the sampler for Portable or Compact configuration. Sets the
number and size of bottles used in the tub or inner sleeve.
Suction Line
Basic & Extended
Sets the type of line (vinyl or Teflon), line diameter (1/4 or 3/8 inch),
and line length (3 to 99 feet).
Liquid Detector
Basic & Extended
Enables/disables liquid detector, sets the number of rinse cycles (0
to 3), enables/disables the suction-head entry, and sets the number
of sampling retries (0 to 3).
Programming Mode
Basic & Extended
Sets the programming mode: basic or extended.
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Table 3-1 Configure Option Functions (Continued)
Configure Option
Programming Mode Function
Load Stored
Extended
Loads one of as many as three previously saved sampling programs.
Extended
Saves current sampling program.
Extended
Directs sampler to take a sample at the beginning of a flow-paced
program. Directs sampler to sample at time-switches.
Nonuniform Time
Extended
Directs sampler to accept nonuniform intervals as specific clock
times or in minutes.
Calibrate Sampler
Basic & Extended
Enables/disables the calibration sequence.
Sampling
Extended
Enables/disables Sampling Stops and Resumes feature.
Start-Time Delay
Basic & Extended
Sets the start time delay (from 0 to 9999 minutes). If no specific
start time is entered in the program sequence, the program uses the
entered start-time delay. The delay is the amount of time that will
elapse after you press the start sampling key or after the sampler is
enabled.
Enable Pin
Basic & Extended
Directs the sampler to take a sample when disabled and/or enabled
by a Liquid Level Actuator or other Isco Flow-monitoring equipment.
Allows you to restart the sampling interval when the sampler is
enabled.
Event Mark
Basic & Extended
Allows you to select one of four types of event marks.
Purge Counts
Basic & Extended
Adjusts the number of pre- and post-sample purge counts.
Tubing Life
Basic & Extended
Displays the pump tubing life information. Resets the tubing life
count.
Program Lock
Basic & Extended
Enables/disables the password protection for input displays.
Sampler ID
Basic & Extended
Allows you to enter a 10-character ID number for the sampler.
Run Diagnostics
Basic & Extended
Tests the RAM, ROM, pump, and distributor. Allows for reinitialization of certain program and configure settings.
Program
Save Current
Program
Flow-Mode
Sampling
Stop/Resume
3.5.3 Configure Sequence
The program sequence and the configure sequence are interdependent. The selections you make in the configure sequence
determine what settings will be available to you in the program
sequence. When you select the extended programming mode, the
program sequence is modified to accommodate the extended features by adding one or more input displays.
The extended programming mode not only extends the number of
features available in the program sequence, it extends the
number of configure options. When you select extended programming, for example, you can enable the Sampling Stop and
Resumes and/or Nonuniform Times features so you can use them
in the extended program sequence.
When you select the basic programming mode, these configure
options are not available to you. As in the programming
sequence, less frequently used options have been separated to
simplify the configuration process.
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Most configure options are available in both programming
modes. Table 3-1 summarizes the configure sequence options;
each option is marked as available in both modes or available
only in the extended mode. A detailed discussion of each configuration option is found in the sections beginning with Set Clock
through Exit Configuration.
It is usually not necessary to change the configure option settings
unless the sampling application changes significantly. The
sampler is always programmed and configured: the sampler’s
internal battery maintains program and configure settings. In
fact, the sampler is shipped with factory program and configure
settings. It is configured for the basic program mode and for the
bottle configuration and suction line ordered with the sampler.
3.6 Programming
Procedure
The procedure used to program the sampler follows the steps
listed below.
Note
Because the configuration settings determine portions of the
program sequence and affect the accuracy of the sample,
check the configuration settings before programming.
1. Determine the equipment you will be using with the sampler. You will need to know the capacity of the bottles and
the inside diameter, type (vinyl or Teflon), and length of
the suction line. You will need this information to verify
and revise the configuration settings in step 2.
If you will be using the sampler for composite sampling,
you will need to convert the sampler. Example Time-Paced
Composite Sampling provides information on converting
the 3700 Standard for composite sampling. Example
Time-Paced Composite Sampling demonstrates the configuration changes you must make.
2. Check the configuration settings. From standby, access the
interactive state. Select the configure sequence. Check the
configuration settings, revising any settings as needed;
select basic or extended programming mode. Return to the
standby state.
Example Checking the Configure Option Settings shows
you how to check and revise the configuration settings in
the configure sequence. (We recommend you review the
upcoming sections Keypad Description and Displays before
you work through the programming examples. These sections discuss the functions of the individual keys and how
to use the keys when programming the sampler.)
3. Program the sampler. Again, from standby, access the
interactive state. Select the program sequence. Enter the
program settings for your routine. The sampler will
prompt you through the programming process. When the
process is completed, the sampler will automatically return
to standby.
For a more detailed discussion of the programming proce-
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dure, see the section Basic Programming Procedure. The
examples given demonstrate several types of sampling programs in the basic mode. Examples of extended mode sampling programs are also shown.
4. If desired, connect the sampler to a flow meter or other
interfacing equipment. Start the sampler.
5. As the routine is executed, the displays will report the
sampler’s progress. The programming examples in this
manual conclude with the run-state displays you should
see for each sampling routine. When the routine is done,
the sampler will return to standby.
6. Retrieve the filled sample bottles. If you wish, use the Display Status procedure discussed in detail later in this section to examine the sampler’s log of sampling results.
7. If you need to reprogram the sampler, follow this procedure
from the beginning. If the sampler’s current program is
correct, restart the sampling routine.
3.6.1 Following Display Cues
Configuring and programming the sampler is as simple as
responding to displays on the LCD with the keypad. The sampler
will prompt you through many of the entries by presenting a
question or a choice on the display. You must respond with the
keypad. The LCD and the keypad are located on the 3700
Sampler control panel.
The following section, Keypad Description, summarizes each
key’s function. The section Displays discusses LCD displays and
ways you can use the keypad to interact with the sampler.
3.6.2 Keypad Description
Keys are grouped together on the control panel to assist you in
identifying related functions. Control keys manually control the
sampler; numeric keys are used to enter program values; programming keys are used to monitor the sampler’s status and
direct programming activities. Key names are represented by
small capital letters in this manual.
The individual key switches that make up the keypad provide
tactile and audible feedback to assure you that the key switch
has been successfully actuated. When you press a key switch, you
can feel the deflection of the spring member in the switch; an
audio indicator inside the sampler will beep once. The sampler
has a 10-keystroke buffer which, in some cases, allows you to
“type ahead” of the display.
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Figure 3-7 3700 Control Panel
Control Keys – Control keys let you turn the sampler on or off,
start or resume the currently entered program, and control the
sampler manually. Control key functions are:
• ON/OFF - Pressing the ON/OFF key when the sampler is
off will turn the sampler on, reactivate the display, and
place the sampler in the standby state. Pressing the
ON/OFF key (when the sampler is on) will halt all
sampling activity and clear the display.
• PUMP FORWARD / PUMP REVERSE - The PUMP
FORWARD and PUMP REVERSE keys run the pump forward
or in reverse until you interrupt it with the STOP key.
While the pump is running, either of the messages below
is displayed, depending on the pumping direction.
PUMPING FORWARD . . .
PUMPING REVERSE . . .
CAUTION
Tests indicate that the pump produces sound levels in excess
of 85db at one meter. Prolonged exposure to this sound level
could result in hearing loss and requires the use of protective
ear plugs.
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• When you press the STOP key, the sampler will display a
message similar to the one shown below. This message
indicates the total number of pump counts that occurred
while the pump was running. This information can be
used to set the desired number of purge counts required
to purge the suction line. See the Purge Counts configure
option. Press any key, except STOP and ON/OFF, to return
to the standby display..
311 COUNTS FORWARD
• STOP - The STOP key will stop the pump any time it is
running. When you press the STOP key in the run state,
the sampling routine will halt, the sampler will transfer
to the standby state, and the “PROGRAM HALTED”
message will be displayed. Pressing the STOP key while
in the interactive state will access the display’s
reference number.
• START SAMPLING - When in the standby state,
pressing the START SAMPLING key will begin the
sampling program. When entering a sampler ID, this
key will type a space.
• RESUME SAMPLING - When “PROGRAM HALTED” is
displayed, pressing the RESUME SAMPLING key will cause
the sampler to continue with the current sample
program at the point were it was halted. When entering
a sampler ID, this key will type a period.
• MANUAL SAMPLE - Pressing the MANUAL SAMPLE key
will allow you to take a manual sample. The MANUAL
SAMPLE key is valid in the standby state, the run state,
and when calibrating the sampler. If you press the
MANUAL SAMPLE key while a sampling program is in
progress, the manual sample will be counted as one of
the programmed samples.
When entering a sampler ID, this key will type a dash
(-).
• NEXT BOTTLE - If you want to reposition the
distributor, use the NEXT BOTTLE key. The sampler will
advance the distributor to the next bottle position. (The
sampler determines the bottle positions by referring to
the Bottle Number configuration setting.) The sampler
will display the distributor’s location as illustrated in g.
After a short time, the display will revert to standby. If
the distributor is over the last bottle position when you
press next bottle, the distributor will move to Bottle 1
Program Keys – The four program keys are used to enter
program settings. Each key’s function is listed below.
• DISPLAY STATUS - While the sampler is in the standby
or run state, pressing the DISPLAY STATUS key allows you
to view the program settings or the sampling results.
See page 3-103 for more details.
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• EXIT PROGRAM - Pressing the EXIT PROGRAM key while
in the program sequence will return the sampler to
standby. If you press the EXIT PROGRAM key while in the
run state, it will halt the program; the message
“PROGRAM HALTED” will be displayed.
• CLEAR ENTRY - When entering a number, use the
CLEAR ENTRY key to return to the original entry.
• ENTER/PROGRAM - Press the ENTER/PROGRAM key
while in the standby state to cause the sampler to enter
the interactive state. While at an input display, press
the ENTER/PROGRAM key to accept an entered value or a
blinking option and direct the sampler to proceed to the
next step.
Numeric Keys – The numeric keys consist of 10 digit keys, a
key, and a key. You use the digit keys to enter quantities and the
arrow keys to move through the configure option list or program
options.
• Left Arrow - Press the left arrow key to select one of
two or more program options displayed when the
sampler is in the interactive state. When more than one
numeric entry is displayed – for example, the hours and
minutes of a time setting – you can use the left arrow
key to step back to a previously entered value. When
entering a number, use the left arrow key to erase the
most recently entered digit. It is also used to step
through display status information and configure option
list.
• Right Arrow - Use the right arrow key to select 1 of 2
or more program options in an input display. You can
also press it to step through display status information
and configure option list.
3.6.3 Displays
There are two types of displays: displays that communicate information about the sampler’s status and displays that request
input. In many cases, you must respond to a display with the
keypad.
Informational Displays – Informational displays communicate
information about the sampler’s status. For example, when the
sampler completes a sampling program, a display similar to the
illustration below appears. It communicates the sampler’s status
(“DONE”), the number of samples taken (which will vary
according to the program), and the current time and date.
DONE . . . 48 SAMPLES
10:32:34
14-JUN-04
Input Displays – You can easily identify input displays because
they contain a blinking word or number. The blinking word or
number serves as a prompt for input and is said to be “selected.”
When the input displays shown below first appear, the word
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“PROGRAM” and the sample volume entry “250” will be
blinking. Italic characters are used to represent blinking words
or numbers in illustrations in this manual.
[PROGRAM, CONFIGURE]
SAMPLER
SAMPLES VOLUMES OF
ml (10 - 1000)
250
Display Numbers – Nearly all input displays have a number
assigned to them. The number is used to cross-reference the
input displays with an explanatory listing found in Appendix C.
If you have a question about a given input display, you can easily
locate the description of the display.
To access the display number, press the stop key when viewing
the input display. To see the display number, press the stop key,
read the number from the display, then look up the corresponding number in Appendix C.
Displays With Choices – There are two types of input displays:
displays that prompt you to make a choice (between time-paced
and flow-paced sampling, for example) and displays that prompt
for numeric input (sample volume, for example). In displays that
ask you to make a choice, you must select one of as many as four
alternatives placed in brackets. The display above prompts you
to select the program or configure sequence. The choices,
“PROGRAM” and “CONFIGURE,” appear in brackets.
When this display appears, the word “PROGRAM” will be
blinking. If “PROGRAM” is acceptable, press the ENTER/PROGRAM
key. If “PROGRAM” is not acceptable, press the left arrow or
right arrow key until “CONFIGURE” is blinking. Then, press the
ENTER / PROGRAM key. The ENTER / PROGRAM key directs the
sampler to advance to the next step.
Numeric Input Displays – A numeric input display prompts
you for input by blinking the currently stored number. (In the
display illustrated above, the number “250” will blink to prompt
you to enter a value.) If the blinking number is acceptable, you do
not need to type the number again: pressing the enter/program
key will store the number and advance the program to the next
step. To enter a new number, press the appropriate numeric keys,
then press the ENTER/PROGRAM key.
The sampler will not accept a number that exceeds the allowable
range of values placed in parentheses on the display. In the next
illustration, you cannot enter a value less than 10 ml or greater
than 990 ml as a sample volume. If an entered number exceeds
the range, the sampler will emit a series of beeps and the original
number will reappear. You must enter an acceptable value to
advance to the next step.
Editing Numbers – You can use the left arrow and CLEAR
keys to edit numeric entries if they are used after you
press a numeric key and before you press the ENTER/PROGRAM
ENTRY
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key. The CLEAR ENTRY key will clear any typed number and the
original number will reappear. The left arrow will erase the most
recently typed number.
Some numeric input displays prompt you to enter more than one
value. In the illustration below, the prompt asks for five numeric
entries: hours, minutes, day, month, and year. You can use the
left and right arrow keys to move back and forth between each of
the five entries. Changed individual entries as discussed above.
Pressing the right arrow or ENTER/PROGRAM key on the last entry
will store the values and advance the display.
HH:MM
12:33
DD-MM-YY
14-06-04
Military Times – You must enter times in military format: To
set the sampler’s clock to 3:30 p.m., enter a time of 15:30. When
the display above first appears, the first two digits, “12,” will
blink. To enter a new time, type in the new hour: “15.”
Store the hour entry and advance to minutes by pressing the
ENTER/PROGRAM key. If you do not need to change the month or
year entry, accept the entry by pressing the right arrow or
ENTER/PROGRAM key. Use the left arrow key to return to a previous position. Press the right arrow or ENTER/PROGRAM key on
the last entry, “04,” to store the value and advance to the next
display.
European Date Format – The sampler uses the European date
format where the day precedes the month’s three-letter abbreviation. To enter a date, enter the day before the month’s number,
and the year. The sampler converts the numeric entry to the
three-letter abbreviation for you.
Exit Program Key – The user can exit an input display by
pressing the EXIT PROGRAM key. If you use the EXIT PROGRAM key,
it will not alter the currently stored setting.
3.7 Programming
Examples
The following examples demonstrate the steps used to check the
configure option settings and to program the sampler for several
different sampling routines. The programming examples in this
manual present each display in the order in which they appear
on the sampler. They are designed to provide you with
step-by-step procedures and are provided as models for you to
use later when programming the sampler for your “real” applications. Each programming example concludes with the run-state
displays that appear while that routine is being executed. You
can use the run-state displays to monitor the sampler’s progress
through a routine.
E x a m p l e s Ti m e - Pa c e d S e q u e n t i a l S a m p l i n g t h r o u g h
Time-Paced Composite Sampling illustrate the basic programming sequence. Because many of the features of the
extended programming mode are affected by selections made in
the configure sequence, examples for the extended programming
sequence follow the section Foreign Languages and Metric Units
of Measure. We recommend you become familiar with the basic
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programming mode procedure and examples before using the
extended programming mode. Most of the procedures used in the
extended programming mode duplicate those of the basic mode
and are not repeated in the extended programming procedures
section.
Flow charts accompany examples for both programming modes.
These charts diagram the program sequence structure for each
mode. Figure 3-8 charts the Basic Programming Mode structure.
Figures 3-10, 3-11, and 3-12 chart the structure of the Extended
Programming Mode. The charts are provided to act as a “map” to
the programming process. Both charts are divided into sections
— Sample Pacing, Sample Distribution, Sample Volume, and Key
Times — which correspond to the steps listed in the procedure
discussed below. Each chart contains the input displays used in
the sequence. The input displays on each chart are labeled with
their display number so they can be cross-referenced with the
listing found in Appendix C.
As noted earlier, Teledyne Isco ships the sampler with a test
program and factory configuration settings. The examples in this
manual assume that you are using all factory settings, and that
the sampler will use the 24-bottle base and a 10-foot length of
3/8-inch vinyl suction line. The settings with which your 3700 is
shipped include the size of bottle ordered and the size, type, and
length of suction line. When you check the configuration settings,
be sure the settings match your equipment, not the example.
Most program and configure settings can be reinitialized to
factory settings, if desired. Table 3-4 lists the factory settings.
The Run Diagnostics section discusses the reinitialize option.
3.8 Basic Programming
Procedure
The steps for programming the sampler in basic mode follow the
procedure outlined below.
1. Turn on the sampler with the ON/OFF key. The sampler
always “wakes up” in the standby state. The “STANDBY”
message will appear. If the sampler is turned off while running a routine, the “PROGRAM HALTED” message will be
displayed. Both messages indicate the sampler is in
standby.
2. Press the ENTER/PROGRAM key to access the interactive
state. Select “program.” Refer to Figure 3-8 for displays
noted in Steps 3 to 6.
To return to a previous display when programming the
sampler, press the exit program key. The sampler will
return to standby. Press the ENTER/PROGRAM key again to
reenter the interactive state. Continue to press the
ENTER/PROGRAM key to scroll through the displays until
you locate the display in question.
3. Enter the Sample Pacing settings. The sampler will
prompt you to select either time- or flow-pacing. Depending
on your selection, you will then be prompted to enter the
time- or flow-pulse interval between samples.
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. . . STANDBY . . .
9:50:34
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Display
[PROGRAM, CONFIGURE]
Configure
SAMPLER
Program
Sample Pacing
Display
[TIME, FLOW]
Time
Flow
PACED SAMPLING
Display
Display
SAMPLE EVERY
SAMPLE EVERY
-- HOURS -- MINUTES
---- PULSES (1 - 9999)
Display
Sample Distribution
MULTIPLEX SAMPLES?
Yes
No
[YES, NO]
Display
[BOTTLES PER SAMPLE,
Bottles Per Sample
Samples Per Bottle
SAMPLES PER BOTTLE]
Display
Display
-- BOTTLES PER
-- SAMPLES PER
SAMPLE EVENT (1-24)
BOTTLE (1 - MAX)
Sample Volume
Display
SAMPLE VOLUMES OF
--- ml (1-MAX)
Display
SUCTION HEAD OF
See Liquid Detector configure
-- FEET (1-MAX)
Display
CALIBRATE SAMPLE
VOLUME? [YES, NO]
See Example Calibration
Display
Key Times
ENTER START TIME?
[YES, NO]
Yes
Flow
Time
Display
START FLOW COUNT AT
Display #91
TAKE FIRST SAMPLE AT
HH:MM
No
HH:MM
DD-MMM
DD-MMM
. . . STANDBY . . .
9:54:22
12-SEP-91
Figure 3-8 Basic Programming Mode: Program Sequence Structure
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Note
If you will be using very short sample intervals, be sure the
interval is longer than the duration of the sampling cycle. For
truly representative sampling, the interval in either time- or
flow-paced sampling should be longer than the duration of the
sampling cycle. If the intervals are too short, you will not miss
any sample events, although some events will occur at
improper times. You can determine the duration of the cycle by
programming the sampler with the desired settings, pressing
the manual sample key, and timing the cycle.
When programming the sampler for flow pacing, you must
enter the number of pulses that make up the flow interval.
If the flow meter has been set to send a pulse once every
1,000 gallons, you can program the sampler to collect a
sample once every 1,000 gallons by entering a flow pulse
interval of “1.” To collect a sample once every 50,000 gallons, you would enter a sample interval of 50 pulses.
Appendix D discusses some of the calculations needed
when determining flow-pulse intervals.
4. Enter the Sample Distribution settings. The settings in the
Sample Distribution section allow you to perform sequential or multiplexed sampling. The first display of the Sample Distribution section asks whether you want to
multiplex samples. If you want simple sequential sampling
– one sample per bottle – select “NO.” The sampler will
then prompt you for the Sample Volume settings.
If you want to use bottles-per-sample or samples-per-bottle
multiplexing, select “YES.” The next display will prompt
you to select either “BOTTLES PER SAMPLE” or “SAMPLES PER BOTTLE.”
Bottles-per-sample multiplexing is useful if you require a
sample volume greater than the capacity of a single bottle,
or where various types of preservatives must be added to
the samples. Samples-per-bottle multiplexing is useful
when you want to collect a series of small composite samples. For example, you can collect four samples at
15-minute intervals in each bottle, resulting in a series of
hourly composite samples. The section Types of Samples
discusses the types of multiplexing.
5. Enter the Sample Volume settings, as shown in the Sample
Volume Program section. Depending on the selections you
make in the configure sequence, it may contain prompts for
the suction head and sampler calibration.
When entering the sample volume, keep in mind the ± 10
ml sample volume repeatability. Because the entered volume is a “nominal” value, it is prudent to calculate a total
sample volume that is somewhat less than the volumetric
capacity of the bottle as a safety factor.
This will minimize the effects of cumulative error. Refer to
the section Bottles and Sizes for notes on cumulative error
and bottle size.
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If you are using bottles-per-sample multiplexing to add
preservatives to consecutive samples, be sure to consider
the volume of the preservative into account.
Suction Head- You can configure the sampler, through the
Liquid Detector configure option, to add the suction-head
setting to the program sequence. The suction-head display
will appear after you enter the sample volume. However,
when the head is unknown or variable, omit the suction-head setting by disabling that setting in the Liquid
Detector configure option. By disabling the setting, you
allow the liquid detector to determine the operating suction head each time a sample is taken.
Calibration Settings- If you want to calibrate the sample
volume, you must enable the calibration option. To enable
this option, select “ENABLE” in the Calibrate Sampler
configure option. Enabling the option will add the calibration displays to the Sample Volume Program section. The
calibration displays are shown in Example Calibration.
6. Enter the Key Times settings. In the basic programming
mode, you will be asked if you want to enter a start time for
the routine. If you select “YES,” you will be prompted to
enter a specific start time and date. If you select “NO,” the
sampler will use the start-time delay. The start-time delay
can be set from 0 to 9,999 minutes in the Start-Time Delay
configure option. When you select “NO,” the routine will
start according to the delay setting in the Start Time Delay
configure option. The time remaining between the time you
press the START SAMPLING key and the next full minute will
pass before the delay countdown begins. In other words,
with a start-time delay of one minute, if you press the
START SAMPLING key at 10:05:30, the routine will begin the
1-minute countdown at 10:05:00 and start the routine at
10:06:00.
When the sampler is operating under factory configuration
settings and running a time-paced program, the 3700 will
take the first sample at the start time for time-paced sampling. This is true whether you enter a specific start time
and date, or if you use the start-time delay.
For flow-paced sampling, however, the flow pulse countdown will begin at the start time and the first sample will
be taken when the countdown reaches zero. Refer to the
discussion on the Flow Mode option in the Nonuniform
Time section for additional information.
7. The sampler automatically returns to standby.
8. From standby, start the routine by pressing the start sampling key. This places the sampler into the run state. If you
to start the routine after the programmed start time, the
sampler will allow you to reprogram the start time.
9. Use the run state displays to monitor the sampler’s
progress.
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Before programming the sampler – E s p e c i a l l y i f y o u a r e
unfamiliar with the settings used in the previous routine, or if
the settings have been changed, verify the configure-option settings. You must change the settings if they do not match your
bottle size or the suction line used with your unit. Entries suggested in this example configure the sampler for 24 1000-ml
bottles and a 10-foot length of 3/8 -inch ID vinyl suction line,
enable the liquid detector, and select the basic programming
mode. Procedures for reinitialization of the program settings and
configure options to factory settings are placed in Steps 22
through 24 in Example Checking the Configure Option Settings.
Example: Checking the Configure Option Settings
1. If the sampler is not already on, press the ON/OFF key to turn it on. The standby display shown here will appear.
Press the ENTER/PROGRAM key to access the interactive state. The next display you’ll see is shown in Step 2.
. . . STANDBY . . .
10:34:50
19-JUN-04
2. Access the configure sequence by selecting “CONFIGURE.” Select “CONFIGURE” by pressing the RIGHT ARROW
key once. When “CONFIGURE” blinks, accept the selection by pressing the ENTER/PROGRAM key.
[PROGRAM, CONFIGURE]
SAMPLER
3. The first option displayed is the Set Clock configure option. If the time displayed on the LCD in the standby
message is not correct, reset the time with the Set Clock configure option. Press the ENTER/PROGRAM key to
access the Set Clock input display.
SELECT
OPTION: (← →)
SET CLOCK
4. Use this display to reset the time. Five entries are required. The LEFT ARROW and RIGHT ARROW keys can be
used to move back and forth between each of the five entries. Use the arrow keys until the entry you want to
change blinks. Type in the new time or date; press the ENTER/PROGRAM key to accept it. Press the RIGHT ARROW
or ENTER/PROGRAM key on the last entry to store the values and advance to the next display
HH:MM
10:35:20
DD-MM-YY
19-06-04
5. To verify the Bottles and Sizes settings, press the ENTER/PROGRAM key. The display shown in Step 5 will appear.
SELECT OPTION: (← →)
BOTTLES AND SIZES
6. Select “PORTABLE” or “REFRIG” depending upon which model you have. Enter PORTABLE for either the 3700
Standard or Compact.
{PORTABLE, REFRIG
SAMPLER
7. For the purposes of this example, select “24” when you are using the 24-bottle base. Use the arrow keys until “24”
blinks, then press the ENTER/PROGRAM key. Select “1” when you are using a single-bottle for composite sampling.
{1, 4, 12, 24}
BOTTLES
8. Enter the bottle size here. Enter “350” for the 350 ml glass bottles, “1000” for plastic bottles, for example. Press
the ENTER/PROGRAM key. If you enter a number that exceeds the maximum standard bottle size (15,000), the
message, “WARNING: STANDARD BTL VOLUME EXCEEDED!,” will display for a short time. The sampler will
then prompt you to confirm the volume entered. This prompt is displayed in Step 9.
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Section 3 Programming Guidelines
Example: Checking the Configure Option Settings (Continued)
BOTTLE VOLUME IS
1000 ml
9. Select “YES” if you want to use the nonstandard bottle volume. Select “NO” if you want to revise the entry. The
display shown in step 8 will reappear; use it to enter the revised bottle volume. Press the ENTER/PROGRAM key to
accept the entry and advance to step 10
1001 ml!
SURE?
. . . ARE YOU
{YES, NO}
10. Press the ENTER/PROGRAM key at this display to access the Suction-Line input displays shown in steps 11 to 13.
SELECT OPTION: (← →)
SUCTION LINE
11. Select “1/4 ” if you are using 1/4 -inch suction line, “3/8 ” if you are using 3/8-inch suction line. Press the
key to accept the selection. If you select “1/4,” you will not see the display shown in step 12;
instead you will be prompted for the suction-line length, as shown in step 13. (You do not need to specify vinyl line
ENTER/PROGRAM
type because only 1/4-inch suction line is available.)
SUCTION LINE ID IS
{ 1/4, 3/8} INCH
12. This display appears when you have selected “3/8” in step 11. Select “VINYL” if you are using vinyl suction line,
“TEFLON” if you are using Teflon suction line. Press the ENTER/PROGRAM key to accept the selection
SUCTION LINE IS
{VINYL, TEFLON}
13. Enter the length of the suction line. Do not include the tube coupling or the strainer in the length. Press the
ENTER/PROGRAM key to accept the entry and move to step 14. If you change the suction line settings, the “. . .
CALCULATING . . . PUMP TABLE VALUES” message will appear for a short time
SUCTION LINE LENGTH
IS 10 FEET (3 - 99)
14. Press the ENTER/PROGRAM key at this display to access the Liquid Detector input displays shown in steps 15 to
18.
SELECT OPTION: (← →)
LIQUID DETECTOR
15. Select “ENABLE” to turn on the Liquid Detector on, “DISABLE” to turn off the Liquid Detector. For the purposes of
the following examples, select “ENABLE.” Press the ENTER/PROGRAM key to accept the selection. You should
normally leave the detector enabled unless you suspect it is malfunctioning. If you disable the detector, you will
need to enter the suction head in the program sequence.
[ENABLE, DISABLE]
LIQUID DETECTOR
16. This display appears when you select “ENABLE” in step 15. For the purposes of this example, enter “0.” Press the
ENTER/PROGRAM key to accept the entry. Rinse cycles condition the suction line to reduce cross contamination.
0 RINSE
CYCLES (0-3)
17. This display appears when you select “ENABLE” in step 15. For the purposes of the following examples, select
“NO” to omit the setting. Press the ENTER/PROGRAM key to accept the selection.
ENTER HEAD MANUALLY?
[YES, NO]
18. This display appears when you select “ENABLE” in step 15. For the purposes of this example, set the number of
retries to “0.” Press the ENTER/PROGRAM key to accept the entry. This setting determines the number of times the
sampler will try to detect the presence of liquid for each sample event.
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Section 3 Programming Guidelines
Example: Checking the Configure Option Settings (Continued)
RETRY UP TO 0 TIMES
WHEN SAMPLING (0-3)
19. To verify the programming mode setting, press the ENTER/PROGRAM key.
SELECT OPTION: (← →)
PROGRAMMING MODE
20. Select “BASIC.” Press the ENTER/PROGRAM key to accept the selection
[BASIC, EXTENDED]
PROGRAMMING MODE
21. Scroll through the remaining options with the arrow keys. Use the techniques above to change or verify the
settings. If you want to reinitialize the configure and program settings to factory settings, follow the procedures
given in Steps 22 to 24.
↓
↓
22. To access the displays used in this option, press the ENTER/PROGRAM key.
SELECT OPTION: (← →)
RUN DIAGNOSTICS
The sampler displays the software revision number for a short period of time.
SOFTWARE REVISION
#4.6
The software revision display will be replaced by the RAM and ROM test messages. A successful test is indicated by
the messages “RAM PASSED TEST” and “ROM PASSED TEST.”
‘RAM’ PASSED TEST
TESTING ‘ROM’
After successful RAM and ROM tests, the sampler will then test the LCD by first filling the display with solid rectangles
and then printing the alphabet and other characters. Each position in the display should contain a character.
ABCDEFGHIJKLMNOPQRST
UVWXYZ [¥]^_`abcdefgh
The next step tests the pump. During the test, the pump will run briefly and the display will indicate an “OFF/ON”
number. The number should fall within the range of 50 to 200. A count near 100 is typical.
PUMP COUNT TEST
OFF/ON = 105
23. For the purposes of this example, select “NO” to skip the test. Press ENTER/PROGRAM to accept the selection
TEST DISTRIBUTOR
[YES, NO]
24. If you want to reinitialize the settings, select “YES.” The entire RAM – with the exception of the current
pump-count total, bottle-size settings, suction-line settings, and sampler ID – will be reinitialized to factory
settings. The sampler will automatically turn itself off as part of the reinitialization process. Select “NO” if you do
not want to reinitialize the settings. Press the ENTER/PROGRAM key to accept the selection
REINITIALIZE?
[YES, NO]
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The steps in Example Time-Paced Sequential Sampling program
the sampler to take samples every 30 minutes. Each bottle is to
receive one 250 ml sample volume. The sampling routine is to
begin according to the start time delay: one minute after you
press the START SAMPLING key.
Example: Time-Paced Sequential Sampling
1. If the sampler is not already on, press the ON/OFF key to turn it on. The standby display shown here will appear.
Press ENTER/PROGRAM to access the interactive state
. . . STANDBY . . .
5:34:50 19-JUN-04
2. Access the program sequence by selecting “PROGRAM.” Because “PROGRAM” will already be selected
(blinking), press the ENTER/PROGRAM key to accept it and move to the next step.
[PROGRAM, CONFIGURE]
SAMPLER
3. To enter the interval between samples in time increments, select “TIME.” If “TIME” is already blinking, press the
ENTER/PROGRAM key to accept the selection. If “FLOW” is blinking, press the LEFT ARROW key once so that
“TIME” blinks. Then, press the ENTER/PROGRAM key to accept “TIME.”
[TIME, FLOW]
PACED SAMPLING
4. This display requires two entries: one for the hours, one for the minutes. Enter “0” to set the hours at zero. Press
ENTER/PROGRAM to accept the number “0” and move to the minutes entry shown in step 5.
SAMPLE EVERY
0 HOURS,
1 MINUTES
5. Enter “30” to set the minute entry. Press ENTER/PROGRAM to accept the entry.
SAMPLE EVERY
0 HOURS, 30 MINUTES
6. For this example, select “NO.”Press the ENTER/PROGRAM key to accept the entry. If you select “YES” in response
to this question, you can select bottles-per-sample or samples-per-bottle multiplexing for your routine.
MULTIPLEX SAMPLES?
[YES, NO]
7. Enter the sample volume: “250.” Press ENTER/PROGRAM to accept the entry.
SAMPLE VOLUMES OF
(10 - 1000)
250 ml
8. Because this sampling routine does not require a specific start time, use the arrow keys to select “NO.” Press the
ENTER/PROGRAM key to accept the entry. If you select “YES,” you can enter a specific start time and date for the
routine.
ENTER START TIME?
[YES, NO]
After this message displays briefly, the sampler will automatically return to the standby state.
PROGRAMMING SEQUENCE
COMPLETE
9. After you properly install the sampler, press the START SAMPLING key to run the program.
. . . STANDBY . . .
5:42:23
19-JUN-04
10. To start the sampling routine with the first bottle, accept the blinking “1” by pressing the ENTER/PROGRAM key. If
you want to start the routine with another bottle, enter the starting bottle number.
START SAMPLING
BOTTLE 1 (1-24)
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Section 3 Programming Guidelines
Example: Time-Paced Sequential Sampling (Continued)
This display appears as the sampler counts down the time remaining to the start time. The first line reports the bottle
which will receive the next sample volume. The second line reports the start time at the left and the current time on
the right.
BOTTLE 1
AT 5:44
5:42:33
When the start time arrives, the sampler will take the first sample. The sample event cycle begins with a pre-sample
purge. During the purge, the display indicates the number of the bottle that will receive the sample volume.
BOTTLE 1
As soon as the pump runs forward to deliver the sample volume, the message on the second line appears. This
message remains through the post-sample purge.
BOTTLE 1
PUMPING 250 ml
This display appears when the post-sample purge from the previous sample event is completed. It indicates the
number of the bottle that is to receive the sample at the upcoming sample event. The left side of the second line
displays the scheduled time for the next event. The current time is displayed on the right side.
BOTTLE 2
AT 6:14
5:45:11
The cycle of displays, shown in Steps 12 through 13, is repeated for each bottle until the sampling routine is done.
↓
↓
When the routine is completed, this message appears. It reports the status of the routine (“DONE”), the total number
of sample events, and the current time and date.
DONE . . . 24 SAMPLES
6:10:35
21-JUN-04
Example Flow-Paced Sequential Sampling shows how to
program the sampler to take flow-paced samples at intervals of 5
pulses. One 500 ml sample is to be placed in each bottle. The
sampling program will default to the value entered in Start Time
Delay option.
Example: Flow-Paced Sequential Sampling
1. Press ENTER/PROGRAM to access the interactive state
. . . STANDBY . . .
10:34:50 19-JUN-04
2. Access the program sequence by selecting “PROGRAM.”
[PROGRAM, CONFIGURE]
SAMPLER
3. Select ‘FLOW’.
[TIME, FLOW ]
PACED SAMPLING
4. Enter “5” as the flow pulse interval. The sampler will take a sample every fifth flow pulse received.
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Example: Flow-Paced Sequential Sampling (Continued)
5
SAMPLE EVERY
PULSES (1-9999)
5. Select “NO.”
MULTIPLEX SAMPLES?
[YES, NO]
6. Enter “500” to set the sample volume at 500 ml.
SAMPLE VOLUMES OF
(10 - 1000)
500 ml
7. Select “NO.”
ENTER START TIME?
[YES, NO ]
After this message displays briefly, the sampler automatically returns to the standby state.
PROGRAMMING SEQUENCE
COMPLETE
8. After you properly install the sampler, press the START SAMPLING key to run the program.
. . . STANDBY . . .
10:37:23
19-JUN-04
9. To start the sampling routine with the first bottle, press the ENTER/PROGRAM key. To start the routine with another
bottle, enter the starting bottle number here.
START SAMPLING
AT BOTTLE 1 (1-24)
The first line of this display indicates the start time. The second line reports the current time and date.
START AT 10:38 19-JUN
10:37:26
19-JUN
This display indicates the bottle that will receive a sample at the next sample event. The second line indicates the
number of pulses remaining in the sample.
AFTER
BOTTLE 1
5 PULSES
This display shows that one flow pulse has been received. The pulse countdown continues until the sample event
concludes.
AFTER
BOTTLE 1
4 PULSES
↓
↓
The second line of the display will disappear as the sampler begins the pre-sample purge.
BOTTLE 1
This display appears when the pump begins to run in the forward direction to deliver the sample volume. It remains
through the end of the post-sample purge.
BOTTLE 1
PUMPING 500 ml
When the first sample volume has been delivered, the display indicates the next sample bottle and the number of
pulses remaining until the next sample event. This series of displays will repeat until the last sample is taken at bottle
24 and the sampling routine is done.
AFTER
BOTTLE 2
5 PULSES
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Example: Flow-Paced Sequential Sampling (Continued)
↓
↓
This display informs you that the sampling routine is completed. The number of sample events displays in the upper
right corner. The second line indicates the current time and date.
DONE . . . 24 SAMPLES
22:48:32
20-JUN-04
Example Checking the Configure Option Settings shows
samples-per-bottle multiplexed sampling. Samples are taken
every 15 minutes. Each bottle receives four sample volumes of
200 ml each, so that bottles are switched every hour. The sampling routine is to start at 6:00 a.m. on the following day.
Example: Time-Paced Multiplexed (samples-per-bottle) Sampling
1. Press ENTER/PROGRAM to access the interactive state.
. . . STANDBY . . .
10:34:50 19-JUN-04
2. Access the program sequence by selecting “PROGRAM.”
[PROGRAM, CONFIGURE]
SAMPLER
3. Select “TIME.”
[TIME, FLOW]
PACED SAMPLING
4. Enter “0” to set the hours at zero. Press ENTER/PROGRAM to store the number “0” and move to the minutes entry.
SAMPLE EVERY
0 HOURS,1 MINUTES
5. Enter “15” to set the minutes entry to 15.
SAMPLE EVERY
0 HOURS,15 MINUTES
6. Select “YES” to set up the samples-per-bottle multiplexing.
MULTIPLEX SAMPLES?
[YES, NO]
7. Select “SAMPLES PER BOTTLE.”
[BOTTLES PER SAMPLE,
SAMPLES PER BOTTLE]
8. Enter “4” to set the number of samples per bottle to 4.
4 SAMPLES PER
BOTTLE (1 - 50)
9. Enter the sample volume of “200” ml.
SAMPLE VOLUMES OF
(10 - 250)
200 ml
10. Select “YES” so you can enter the specific start time.
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Example: Time-Paced Multiplexed (samples-per-bottle) Sampling
ENTER START TIME?
[YES, NO]
11. When this display first appears, it will show you the sampler’s “guess” at the start time. Type in the desired start
time. For this example, the start time is 6:00 on 6/20/91.
TAKE FIRST SAMPLE AT
6:00
20-JUN-04
After this message is displayed briefly, the sampler automatically returns to the standby state.
PROGRAMMING SEQUENCE
COMPLETE . . .
12. To run the program, press the START SAMPLING key after the sampler is installed.
. . . STANDBY . . .
10:37:23
19-JUN-04
13. To start the sampling routine with the first bottle, accept the blinking “1” by pressing the ENTER/PROGRAM key. If
you want to start the routine with another bottle, enter the starting bottle number here.
START SAMPLING
AT BOTTLE 1 (1-24)
This is used with samples-per-bottle multiplexing. The first line tells the number of the upcoming sample, the total
number of samples each bottle is to receive, and the current bottle number. Here, the upcoming sample is the first of
four samples, Bottle 1. The second line indicates the scheduled time of the sample and displays the current time in
the right corner.
1 OF 4,
AT 6:00
BOTTLE 1
5:55:33
When the scheduled sample event time arrives, the second line disappears while the sampler completes the
pre-sample purge.
1
OF
4,
BOTTLE 1
When the pump begins to pump forward to deliver the sample, sample delivery is indicated by the word “PUMPING”
followed by the sample volume. The message remains through the post-sample purge.
1
OF 4, BOTTLE 1
PUMPING 200 ml
When the sampling cycle is completed, the display again indicates the upcoming sample.
2 OF 4,
AT 6:15
BOTTLE 1
6:00:26
The next displays shown here, in Steps 18 through 20, show the displays as the sample volumes are deposited in
Bottle 1.
2 OF
4,
BOTTLE 1
2 OF 4, BOTTLE 1
PUMPING 200 ml
3 OF 4,
AT 6:30
3
OF
4,
BOTTLE 1
6:15:27
BOTTLE 1
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Example: Time-Paced Multiplexed (samples-per-bottle) Sampling
3
OF 4, BOTTLE 1
PUMPING 200 ml
↓
↓
When the final sample has been deposited in the first bottle, the display changes to indicate the new sample bottle.
This display indicates that the upcoming sample event will place the first of four sample volumes in Bottle 2 at 7:00
1 OF 4,
AT 7:00
BOTTLE 2
6:45:25
This display appears as the pump begins the pre-sample purge for the first sample delivered to Bottle 2.
1
1
OF
4,
BOTTLE 2
OF 4, BOTTLE 2
PUMPING 200 ml
The cycle of displays is repeated for each bottle until the sampling routine is done.
↓
↓
When the routine is complete, this message appears. It reports the status of the routine (“DONE”), the total number of
sample events, and the current time and date.
DONE . . . 96 SAMPLES
6:10:35
21-JUN-04
Example Flow-Paced Multiplexed (bottles-per-sample) Sampling
demonstrates the steps needed to program the sampler for a
flow-paced routine that will place a sample in two bottles at each
sample event. Sample volumes of 500 ml are to be placed in the
bottle sets at intervals of 10 flow-pulses. The routine is to start at
5:00 a.m., the following morning.
Example: Flow-Paced Multiplexed (bottles-per-sample) Sampling
1. Press ENTER/PROGRAM to access the interactive state.
. . . STANDBY . . .
10:34:50 19-JUN-04
2. Access the program sequence by selecting “PROGRAM.”
[PROGRAM, CONFIGURE]
SAMPLER
3. Select “FLOW.”
[TIME, FLOW]
PACED SAMPLING
4. Enter “10” as the flow--pulse interval. The sampler will take a sample every tenth flow pulse received.
10
5. Select “YES” to multiplex samples.
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PULSES (1-9999)
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Section 3 Programming Guidelines
Example: Flow-Paced Multiplexed (bottles-per-sample) Sampling
MULTIPLEX SAMPLES?
[YES, NO]
6. Select “BOTTLES PER SAMPLE.”
[BOTTLES PER SAMPLE,
SAMPLES PER BOTTLE]
7. Enter the number of bottles per sample event: “2.”
2 BOTTLES PER
SAMPLE EVENT (1-24)
8. Enter “500” to set the sample volume at 500 ml.
SAMPLE VOLUMES OF
(10 - 1000)
500 ml
9. Select “YES.”
ENTER START TIME?
[YES, NO]
Enter the start time for the sampling routine. Note that the sampler may receive flow pulses before the sampling routine begins. Any pulses received before the start time will be disregarded.
START FLOW COUNT AT
5:00
20-06 JUN
After this message appears briefly, the sampler automatically returns to the standby state.
PROGRAMMING SEQUENCE
COMPLETE
Press the START SAMPLING key to run the program.
. . . STANDBY . . .
10:37:23
19-JUN-04
To start the sampling routine with the first bottle, accept the blinking “1” by pressing the ENTER/PROGRAM key. If you
want to start the routine with another bottle, enter the starting bottle number.
START SAMPLING
AT BOTTLE 1 (1-23)
This display appears after you press the START SAMPLING key to start the routine. It reports the scheduled start time
on the first line. The second line reports the current time and date.
START FLOW COUNT
AT 5:00
10:37:23
When the scheduled start time arrives, the sampler begins to count flow pulses. This display indicates the bottles that
will receive sample volumes at the upcoming sample event. (If the bottle set consisted of four bottles, the first line of
the display would read, “BOTTLES 1 to 4.”) The second line displays the number of flow pulses remaining until the
sample event.
BOTTLES 1- 2
AFTER
10 PULSES
The second line of the display changes as each flow pulse is received.
BOTTLES 1- 2
AFTER
9 PULSES
↓
↓
This display shows one pulse remaining until the sample event.
BOTTLES 1- 2
AFTER
1 PULSES
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Example: Flow-Paced Multiplexed (bottles-per-sample) Sampling
When the sampler receives the tenth pulse, the first line reports the current bottle number.
BOTTLE
1
When the pump begins to run forward to deliver the sample volume, the second line appears. After the pump completes the sample delivery, it reverses to purge the liquid from the pump tube past the liquid detector. The suction line
is not completely purged; instead, the liquid is pumped just past the liquid detector. At the end of the pump-tube
purge, the distributor moves to the next bottle of the set. The display remains unchanged until the distributor relocates
to the next bottle of the set.
BOTTLE 1
PUMPING 500 ml
When the distributor relocates above the next bottle, the bottle number reported in the display changes to indicate the
bottle number. The message, “PUMPING 500 ml,” will remain on the display. When the distributor reaches the correct
position over the second bottle, the pump delivers the sample volume. When the delivery is done, the pump reverses
to complete the post-sample purge.
BOTTLE 2
PUMPING 500 ml
At the end of the post-sample purge, the display changes to indicate the bottle numbers of the next bottle set. The display will change as it receives each flow pulse.
BOTTLE 3-4
AFTER
10 PULSES
The cycle repeats until the sampling routine is completed.
↓
↓
When the routine is complete, the display indicates the status (“DONE”), the number of sample events, and the current time and date.
DONE . . . 12 SAMPLES
6:10:35
21-JUN-04
Example Time-Paced Composite Sampling demonstrates the programming procedures for a composite sampling routine. When
composite sampling with the 3700R, you must convert the unit
for single-bottle sampling.
After converting the 3700R, check the settings to verify the sampler is configured for composite sampling. This example begins
with a demonstration of the steps needed to check the Bottles
and Sizes configure option settings. The Bottles and Sizes configure settings should indicate that only one bottle is being used. Be
sure to enter the correct bottle volume. The settings used in this
example are for the 2.5 gallon (9400 ml) composite bottle available with the 3700R.
This time-paced routine will take samples at 15-minute intervals
for a 12-hour period. Sample volumes are to be 150 ml each.
When entering the program settings, you must enter the number
of samples required before entering the sample volumes. At four
samples per hour, the 12-hour period would yield 48 samples.
The total sample volume collected at the end of the routine would
be 7200 ml (48 samples x 150 ml/sample), well within the
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Section 3 Programming Guidelines
capacity of the 2.5 gallon bottle. The total sample volume collected at the end of the routine would be 12,000 ml (48 samples x
250 ml/sample), well within the capacity of the 4-gallon bottle.
Example: Time-Paced Composite Sampling
1. If the sampler is not already on, press the ON/OFF key to turn it on. Press ENTER/PROGRAM to access the
interactive state.
. . . STANDBY . . .
10:34:50 19-JUN-04
2. Access the configure sequence by selecting “CONFIGURE.”
[PROGRAM, CONFIGURE]
SAMPLER
3. Press the LEFT ARROW or RIGHT ARROW key to scroll through the configure options until the Bottles and Sizes
configure option appears.
SELECT OPTION: (← →)
SET CLOCK
4. Press the ENTER/PROGRAM key to access the Bottles and Sizes settings.
SELECT OPTION: (← →)
BOTTLES AND SIZES
5. Select “PORTABLE” for either the 3700 Standard or Compact.
[PORTABLE, REFRIG
SAMPLER
6. Select “1” for single bottle composite sampling.
[1,
4, 12, 24]
BOTTLES
7. Enter the bottle size here, “15,000.” (Table 3-2 lists the standard Teledyne Isco bottle sizes.)
BOTTLE VOLUME IS
15000 ml
8. Press the ENTER/PROGRAM key at this display to access the Suction Line input displays.
SELECT OPTION: (← →)
SUCTION LINE
9. Select “1/4 ” if you are using 1/4 -inch suction line, “3/8 ” if you are using 3/8-inch suction line.
SUCTION LINE ID IS
[1/4,3/8] INCH
This display appears when you have selected “3/8” in step 9. Select “VINYL” if you are using vinyl suction line,
“TEFLON” if you are using Teflon suction line.
SUCTION LINE IS
[VINYL, TEFLON]
10. Enter the length of the suction line. The length should not include the tube coupling or the strainer.
SUCTION LINE LENGTH
IS 10 FEET (3 - 99)
11. To verify the Liquid Detector configure options, press the ENTER/PROGRAM key.
SELECT OPTION: (← →)
LIQUID DETECTOR
12. Continue to scroll through the configure options with the right arrow key. When you have checked the settings for
the desired options, press the EXIT PROGRAM key to return to standby.
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Example: Time-Paced Composite Sampling (Continued)
↓
↓
13. Press the ENTER/PROGRAM key to reenter the interactive state.
. . . STANDBY . . .
10:38:50 19-JUN-04
14. Access the program sequence by selecting “PROGRAM.”
[PROGRAM, CONFIGURE]
SAMPLER
15. Select “TIME.”
[TIME, FLOW]
PACED SAMPLING
16. Enter “0” to set the hours at zero. Press ENTER/PROGRAM to store the number “0” and move to the minutes entry.
SAMPLE EVERY
0 HOURS,1 MINUTES
17. Enter “15” to set the minutes entry to 15.
SAMPLE EVERY
0 HOURS,15 MINUTES
18. Enter “15” to set the minutes entry to 15.
48
COMPOSITE
SAMPLES (0-200)
19. Enter the sample volume: “250.” Note that the upper limit of the range of acceptable volumes has been adjusted.
When you want to collect 48 samples, the maximum sample volume is 310 ml. If you need to use a larger sample
volume, you must adjust the sample number downward.
SAMPLE VOLUMES OF
250 ml EACH (10 - 310)
20. Select “YES” to enter the start time for the routine.
ENTER START TIME?
[YES, NO]
21. Enter the start time and date: “6:00” on June 20.
TAKE FIRST SAMPLE AT
20-06 JUN
6:00
22. After you properly install the sampler, press the START SAMPLING key to run the program.
PROGRAMMING SEQUENCE
COMPLETE . . .
After this messages displays briefly, the sampler will automatically return to the standby state.
. . . STANDBY . . .
10:40:23
19-JUN-04
The first line of this display indicates the number of the upcoming sample event and the total number of programmed
samples. The second line indicates the scheduled time of the upcoming event followed by the current time.
SAMPLE 1 OF 48
AT 6:00
5:50:43
When the time to the next sample event has elapsed and the sampler has initiated the sample event, the sampling
cycle begins.
SAMPLE 1 OF 48
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Example: Time-Paced Composite Sampling (Continued)
When the pump reverses for the pre-sample purge, the second line disappears. At the end of the pre-sample purge,
the pump runs forward to deliver the sample, and the second line appears on the display. This display remains
through the end of the post-sample purge.
SAMPLE 1 OF 48
PUMPING 250 ml
At the end of the sample event, the display changes to indicate the number and time of the next event. The lower right
corner reports the current time.
SAMPLE 2 OF 48
AT 6:15
6:00:33
The cycle repeats for the remainder of the sampling routine.
SAMPLE 2 OF 48
↓
↓
This display appears when the routine is complete. It reports the status of the routine (“DONE”), the total number of
sample events, and the current time and date.
DONE . . . 48 SAMPLES
6:10:35
21-JUN-04
Example Calibration shows how to calibrate the sampler for a
200-ml sample volume. You must enable the Calibrate Sampler
configure option in the configure sequence before the calibration
displays shown below appear.
Even without calibrating, the 3700 Sampler delivers accurate
sample volumes. If your sample volumes vary significantly with
the entered values, check the suction line first. Be sure the line
slopes continuously downhill and is draining completely after
each pumping cycle. Then, check the suction-line entries in the
configure sequence to see that they are accurate. The calibration
procedure is intended to be for “fine tuning” only.
After you enter the sample volume actually delivered, as shown
in Step 6, all subsequent sample volumes delivered will be
adjusted to correct for the difference between the expected
sample volume and the actual volume entered. Clear the
adjustment by changing a suction line entry in the Suction Line
configure option or by reinitialization of the sampler.
Because the sample volume can be calibrated to ± 10 ml, use a
graduated cylinder to facilitate measurement. Teledyne Isco
offers a graduated cylinder and spare bottles as accessories from
the factory. Refer to Appendix B for details.
The calibration pump cycle will include rinse cycles and retries, if
the sampler is configured to perform them. This ensures that the
calibration procedure includes the pump cycle used while
running the sampling program.
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Example: Calibration
1. Press ENTER/PROGRAM to access the interactive state.
. . . STANDBY . . .
9:34:50
19-JUN-04
2. Access the program sequence by selecting “PROGRAM.”
[PROGRAM, CONFIGURE]
SAMPLER
3. Step through the program until the “CALIBRATE SAMPLER?” input display appears (Step 4).
[TIME, FLOW]
PACED SAMPLING
Other program sequence displays.
↓
↓
4. Select “YES.”
CALIBRATE SAMPLER?
[YES, NO]
5. Before pressing the MANUAL SAMPLE key, make sure a collection container is underneath the distributor.
PRESS MANUAL SAMPLE
KEY WHEN READY . . .
The sampler will deliver the programmed sample volume.
. . . MANUAL SAMPLE . . .
PUMPING 200 ml
6. Measure the actual volume delivered and enter that value here.
200 ml VOLUME
DELIVERED
7. Repeat the procedure if desired by selecting “YES.” When you are satisfied with the calibration, select “NO.”
Under normal conditions, you should not need to repeat the procedure.
CALIBRATE SAMPLER?
[YES, NO]
Other program sequence displays.
↓
↓
8. The sampler returns to standby. Press the START SAMPLING key to run the program.
. . . STANDBY . . .
9:39:50
19-JUN-04
3.9 Configure Sequence
The configure sequence provides a number of setup options.
Some options enable sampling features, some provide reference
data, and others affect run-state operations.
Example Checking the Configure Option Settings shows the procedure used to access the configure sequence. (When you see a
“SELECT OPTION: (← →)” display, you are in the configure
sequence.) Each option uses at least two displays. The first
display lists the option name. The second and any additional displays are input displays. To access an input display, press the
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ENTER/PROGRAM
key while the desired option name is displayed.
Once you’ve accessed the input display, use the keypad to enter
numbers and make choices.
Pressing the EXIT PROGRAM key in the configure option list will
return the sampler to standby. Pressing the EXIT PROGRAM key in
a configure option input display will return you to the list of configure options without changing the display’s setting.
By pressing the LE FT AR ROW or R IG H T A RR O W key at the
“SELECT OPTION” display in the configure sequence, you can
scroll through the list of configure options without viewing each
input display. If you are interested in only one or two options, you
can use this method to locate the option of interest quickly.
Each option is discussed below in the order in which it appears
when configuring the sampler. Individual input displays and
their settings, are discussed separately within the discussion of
each option. The name of the setting is placed at the left of each
option so you can identify each topic. Each discussion does not
include illustrations of displays; however, discussions do include
display numbers, which are identified in Appendix C.
3.9.1 Set Clock
Use this option to synchronize the sampler’s clock with real time.
You must make entries using military time: 9:30 a.m. would be
entered as 9:30, 9:30 p.m. would be entered as 21:30, etc. When
the sampler accepts a year entry, the seconds will be reset to
zero. (Display #210)
3.9.2 Bottles and Sizes
You can use the Bottles and Sizes option to enter the number of
bottles and the bottle volume. The option uses four input displays:
• The first display specifies a Portable or Refrigerated
Sampler.
• The second display sets the number of bottles (1, 4, 12,
or 24) for portable configurations. The second display
appears only when you specify a Portable sampler in the
first display.
• The third display sets the number of bottles (1, 2, 4, 8,
12, 24) for Refrigerated Samplers.
• The fourth display sets the bottle volume.
3.9.3 Portable or
Refrigerated Sampler
Because the 3700 Series Portable and Refrigerated Samplers use
the same control box, you specify the type of unit. The 3700R
Sampler will be shipped with this setting as REFRIGERATED.
This setting is not changed when you reinitialize the settings.
You should not specify PORTABLE unless you move the control
box to a portable sampler. (Display #220)
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Note
The sampler uses the bottle configuration setting to position
the distributor. If you enter a bottle configuration that does not
correspond to the actual configuration used in the sampler, the
sampler may position the distributor over locations without a
bottle and fill the refrigerator instead of a sample bottle.
3.9.4 Portable
If you specify PORTABLE in the previous display, you will be
able to specify a 1, 4, 12, or 24 bottle configuration. The sampler
comes configured for the number of bottles ordered with the
sampler. Each bottle configuration requires a different bottle
base section. The 1-bottle configuration requires the composite
base section; the 4 bottle configuration requires the 4 bottle base
section, and so on. Change the configuration setting only when
you have moved the controller to a portable sampler. If you
change the bottle configuration without changing the base
section, the sampler will not position the distributor arm over the
bottles and will miss the bottle mouth, filing the base section
instead of the bottles. (Display #222)
3.9.5 Refrigerated
If you specify REFRIGERATED, you will be able to specify a 1, 2,
4, 8, or 24 bottle configuration. The 2 and 8 bottle configurations
are used only with Teledyne Isco’s 3700 Series Refrigerated Samplers (Display #221)
3.9.6 Continuous Sampling
You can program the 3700R for continuous sampling. A 3700R
programmed for continuous sampling will deposit samples into
successive sets of bottles until it reaches the last set of bottles. It
then returns to the first set of bottles and continues sampling
indefinitely into successive sets. Continuous sampling is
available for all multiple-bottle configurations.
Before programming a sampler for continuous sampling, configure the sampler as follows: Select REFRIGERATED and 2, 4,
8, or 24 bottles in the Bottles and Sizes configure option. Next,
configure the sampler for extended programming in the Programming Mode configure option. Under these settings, the
display illustrated below will appear in the sample distribution
section.
SAMPLE CONTINUOUSLY?
[YES, NO]
Display #48
Note
The sampler will deposit samples indefinitely, even though the
bottles have been filled to capacity. To avoid overfilling the bottles, replace them at regular time intervals or as soon as they
are filled.
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3.9.7 Bottle Volume
The sampler will accept bottle volumes between 100 ml and 30,000
ml. It uses the bottle volume to calculate the range of acceptable
sample volumes in the sample-volume input display and to check
for probable overfill when running a sampling routine.
Table 3-2 lists Teledyne Isco’s standard bottle sizes for composite
samplers. When using the standard bottles, enter the bottle volume setting listed in the third column of the table. We have
adjusted the recommended bottle sizes downward. Using the
lower, adjusted volume helps prevent overfilling. If you are using
a nonstandard bottle, enter a bottle volume smaller than the
actual bottle capacity. This will help prevent overfilling. (There
are approximately 3,785 ml per gallon.)
3.9.8 Cumulative Error
The sample accuracy is the greater of 10% of the sample volume
or 20 ml and is repeatable to ± 10 ml. If you wish to fill a 1000 ml
bottle with five 200 ml samples, adjust the actual sample volume
according to the sample accuracy. Since samples of 200 ml can
vary by 10% or ± 20 ml, the cumulative error for five samples
would be ± 100 ml. If the sampler consistently places an actual
sample volume of 220 ml for each of five samples, the total
volume held by the bottle would be 1100 ml. Again, to avoid possible overfilling, enter a bottle volume that is less than the actual
bottle capacity.
Table 3-2 Bottle Volume Settings for Standard Bottle Configurations
Bottle Configuration
Bottle Size
Bottle Volume Setting
24 (glass)
350 ml
350
24 (polypropylene)
1000 ml
1000
8 (polyethylene)
2000 ml
2000
8 (glass)
1800 ml
1800
4 (polyethylene)
2 gal
7500
4 (glass)
2.5 gal
9400
2 (glass and polyethylene)
2.5 gal
9400
1 (glass and polyethylene)
2.5 gal
9400
3.9.9 Suction Line
You can use the Suction Line configure option to configure the
sampler for the type (vinyl or Teflon), diameter, and length of the
suction line used. The volumetric delivery varies with line
diameter, type, and length, so it is important that you enter these
settings accurately. An incorrect setting will impair the accuracy
of the sample volume. These settings can also determine the
number of post-sample purge counts. It is important to have sufficient counts to completely clear the line.
If you change the current suction line settings, the “. . . CALCULATING . . . PUMP TABLE VALUES” message will appear for a
short time. Because the volumetric delivery of the sample varies
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with the diameter, type, and length of the suction line; the
sampler must revise the internal pump tables. The electronic
pump count uses the tables as reference for sample delivery.
There are three types of suction lines available for use with the
3700R sampler: 1/4-inch vinyl, 3/8-inch vinyl, and 3/8-inch Teflon.
If you specify 1/4-inch line, the sampler will prompt you for the
line length immediately. If you specify 3/8-inch line, the sampler
prompts you to specify vinyl or Teflon before prompting for the
line length. (Display #s 230 and 231)
The sampler will accept suction line lengths of 3 to 99 feet. When
measuring the line, do not include the tube coupling or the
strainer in the measurement. The line should be cut to even foot
lengths, such as 6, not 6.5, feet. It is important to enter these settings accurately. These settings affect the accuracy of the sample
volume and are used to determine the number of post-sample
purge counts. It is important to have sufficient counts to completely clear the line. (Refer to Purge Counts, Section 3.9.21.)
(Display #232)
3.9.10 Liquid Detector
You can use the Liquid Detector configure option to turn the
liquid detector on or off, set the number of rinse cycles, add a
suction-head setting to the program sequence, and set the
number of sampling retries should the suction line become
clogged. The option uses four input displays. Each display is discussed below.
Enable/Disable Detector – Teledyne Isco recommends setting
the Enable/Disable Detector option to “ENABLE.” The 3700R
Sampler determines the delivered-sample volume suction head
by counting revolutions of the peristaltic pump rotor. The volume
of liquid delivered by one revolution of the pump rotor is a
function of the suction head; as the suction head increases, the
volume delivered by one revolution of the pump rotor decreases.
By enabling the detector, the sampler can accurately determine
the operating suction head. It does not have to rely on a programmed suction-head value, but can instead begin its volume
delivery count when it detects liquid. This minimizes inaccuracies that can occur in changing head conditions, or when it is
difficult to measure the suction head accurately.
The disable option is provided should the detector or its associated circuitry become suspect. If you disable the detector, the
manual suction-head setting (Display #70) is automatically
added to the Sample Volume program section in the program
sequence. If the detector is disabled, the sampler uses a calculated number of pump counts based on the suction-head entry to
deliver the correct sample volume. With the detector disabled,
the sampler operates at diminished accuracy. (Display #240)
Rinse Cycles – The Rinse Cycle setting is available only when
the detector is enabled. It sets the number of suction-line rinses
from 0 to 3. Rinses are used to condition the suction line to
reduce cross contamination. During a rinse cycle, the pump
draws liquid up through the line until the liquid detector senses
it. At that point, the pump reverses to purge the line. This cycle
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repeats according to the number of rinse cycles entered (Display
#241). Rinse cycles contribute to the wear on pump tubing;
therefore, if you use rinse cycles, you may need to replace the
tubing more frequently. The Tubing Life configure option allows
you to monitor pump-tubing wear.
Enter Head Manually – When the detector is enabled, you can
optionally enter the head manually, allowing you to add the
suction-head entry (Display #70) to the program sequence.
When the detector is disabled, the Suction Head entry is automatically added to the program sequence. By disabling the
suction-head setting, you allow the liquid detector to determine
the operating suction head each time a sample is taken.
When the head is stable and known accurately, you can further
increase the accuracy of the delivered volume by using the
Suction Head entry in conjunction with the liquid detector. When
the head is variable or unknown, select “NO” because an
incorrect head setting will diminish the delivered volume
accuracy. (Display #242)
Sampling Retries – The Sampling Retries option is available
when the detector is enabled. It sets the number of times (from 0
to 3) the sampler will try to detect liquid in the line before
skipping the sample. You can use this option when sampling
liquid with a high concentration of solids that tend to clog the
suction line or the strainer. The sampler will also retry the rinse
cycle when you are using the Sampling Retry option. (Display
#243)
3.9.11 Programming Mode
The Programming Mode option allows you to specify either basic
or extended programming mode. The basic programming mode is
used for conventional routines; you can use the extended programming mode for either conventional or more complex routines. Storm programming is available through the extended
programming mode.
Table 3-3 summarizes the sampling features according to the
programming mode in the program sequence. Table 3-1 summarizes the features available in the configure sequence. (Display
#250)
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Table 3-3 Sampling Capabilities Through the Program Sequence
Pacing
Mode
Feature
Time-Pacing:
Basic & Extended
Samples taken at regular time intervals from 1 minute to 99 hours,
59 minutes.
Extended
Samples taken at irregular time intervals by specifying the time
and date of each sample. You can enter dates as far as one
month in advance of the current date.
Extended
Samples taken at irregular time intervals by specifying the amount
of time in minutes between each sample. You can enter intervals
from 1 to 999 minutes.
Basic & Extended
Samples taken at regular flow intervals. The sampler will totalize
flow intervals of 1 to 9,999 pulses.
Sequential
Basic & Extended
One sample volume placed in each bottle.
Samples-per-Bottle
Multiplexing
Basic & Extended
More than one sample volume placed in each bottle. You can
switch bottles after a specified number of samples have been
deposited or after a specified time period.
Bottles-per-Sample
Multiplexing
Basic & Extended
Sample volumes placed in more than one bottle at each sample
event.
Multiple-Bottle
Extended
More than one sample volume placed in a set of bottles. You can
switch bottle sets after a specified number of samples have been
deposited or after a specified time period.
Sample Volume
Basic & Extended
You can enter volumes from 10 to 9,990 ml.
Suction Head
Basic & Extended
You can enter suction heads from 1 to 20 feet.
Calibration
Basic & Extended
You can calibrate sample volumes if desired.
Start Times
Basic & Extended
You can enter specific start times for both time-paced and
flow-paced routines. If you do not enter a start time, Start Time
Delay is used.
First Switch Time
Extended
Bottles can be switched after specified time intervals. After the
routine starts, the first switch time allows the first bottle or bottle
set to receive samples for a partial interval. After the first switch,
the remaining sets will receive samples for full time intervals. This
allows you to place the sampler on schedule.
Stop/Resume Times
Extended
You can perform intermittent sampling by defining sampling stop
and resume times. You can enter as many as 12 stop and 12
resume times.
Time-Pacing
Extended
Samples taken at regular time intervals from 1 minute to 99 hours,
59 minutes.
Uniform Time Intervals
Time-Pacing:
Nonuniform Clock Time
Intervals
Time-Pacing:
Nonuniform Intervals in Minutes
Flow-Pacing
Distribution
Compositing
Volumes and Accuracy
Key Times
STORM Programming (Available through the Extended Mode Only.)
Storm Pacing
Flow-Pacing
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Extended
Samples taken at regular flow intervals. The sampler will totalize
flow intervals of 1 to 9,999 pulses.
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Table 3-3 Sampling Capabilities Through the Program Sequence (Continued)
Storm Distribution
Sequential
Extended
One sample volume placed in each bottle.
Samples-per-Bottle
Multiplexing
Extended
More than one sample volume placed in each bottle. You can
switch bottles after a specified number of samples have been
deposited.
Bottles-per-Sample
Multiplexing
Extended
Sample volumes placed in more than one bottle at each sample
event.
Multiple-Bottle
Extended
More than one sample volume placed in a set of bottles. You can
switch bottle sets after a specified number of samples have been
deposited.
Compositing
Storm Volumes and Accuracy
Sample Volume
Extended
Enter volumes from 10 to 990 ml for the time-paced and
flow-paced segments separately.
Suction Head
Extended
You can enter suction heads from 1 to 20 feet.
Calibration
Extended
Calibrate sample volumes if desired. Sets calibration using the
timed sample volume only.
Storm Key Times
Delay to First Group Sample Extended
Enter a time of up to 99 minutes to delay the first sample delivered
to the first bottle group. The delay begins after the programmed
start time for the STORM routine. In applications where there is a
flow meter programmed to enable the sampler, the delay begins
after the sampler is enabled.
Delay to Second Group
Sample
Extended
A time of up to 99 minutes can be entered to delay the first sample
delivered to the second bottle group, when the second bottle
group receives time-paced samples. The delay begins after the
programmed start time for the STORM routine. In applications
where there is a flow meter programmed to enable the sampler,
the delay begins after the sampler is enabled.
Start Times
Extended
You can enter a specific start time for the STORM routine. If no
start time is entered, the Start Time Delay will be used.
Maximum Flow Interval
Extended
You can enter maximum period of time between flow-paced sample events. If this period of time is exceeded, the sampler will terminate the routine.
3.9.12 Load Stored Program
The Load Stored Program option allows you to load one of as
many as three sampling programs that you have previously
saved with the Save Current Program configure option. After
loading a program, the sampler will adjust the time settings to
current times and dates.
Check the settings before starting the program to be sure they
are appropriate for your application. (Display #255)
The sampler is shipped from the factory with four programs: the
current program and three stored programs, numbered from 1 to
3. All four programs contain the factory default program settings.
Unless you have previously saved a program under one of the
program numbers, you will replace the current program with the
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factory default settings by loading a program. When you reinitialize the sampler, all four programs return to the default
program settings.
Example: Load Stored Program
1. Press ENTER/PROGRAM to access the interactive state.
. . . STANDBY . . .
10:34:50 19-JUN-04
2. Access the configure sequence by selecting “CONFIGURE.”
[PROGRAM, CONFIGURE]
SAMPLER
3. Press the LEFT ARROW or RIGHT ARROW key to scroll through the configure options. The first option displayed is
the Set Clock configure option.
SELECT OPTION: (← →)
SET CLOCK
↓
↓
4. You can load a stored programmed only when the sampler is configured for the extended programming mode. To
verify the programming mode setting, press the ENTER/PROGRAM key.
SELECT OPTION: (← →)
PROGRAMMING MODE
5. Select “EXTENDED.” Press the enter/program key to accept the selection.
[BASIC, EXTENDED]
PROGRAMMING MODE
6. Press ENTER/PROGRAM to access the Load Stored Program configure option.
SELECT OPTION: (← →)
LOAD STORED PROGRAM
7. Select the number of the program you want to load. Select “NONE” when you do not want to load a program.
LOAD PROGRAM
[#1, #2, #3, NONE]
8. When the sampler has loaded the program, it will display the next configure option. When you are done
configuring the sampler, press EXIT/PROGRAM to return to Standby.
SELECT OPTION: (← →)
SAVE CURRENT PROGRAM
9. After you properly install the sampler, press the START SAMPLING key to run the program.
. . . STANDBY . . .
10:37:23
19-JUN-04
3.9.13 Save Current Program
The Save Current Program option allows you to assign a different number to as many as three sampling routines and save
those numbers.
This option eliminates the need to reprogram the sampler for
recurrent routines. Only the program settings are saved; if different routines require different configurations, you must reconfigure the sampler for each routine. For example, if the sampler
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is used at two sites, each requiring a specific sampling routine
and different suction-line lengths, the sampling routines can be
stored for each site, but you must reenter the suction-line length
settings each time the line changes. (Display #260)
The sampler is shipped from the factory with four programs: the
current program and three stored programs, numbered from 1 to
3. All four programs contain the factory default program settings.
Saving a program will replace the default program with the
current settings. Reinitialization of the sampler restores the
default program settings, shown in Tables 3-4 and 3-5.
Note
Saving a program will overwrite a program saved earlier under
the same number. You can view settings for the current program
with the Display Status procedure. Example Save Current Program shows how to save a current sampling program.
Example: Save Current Program
1. Press ENTER/PROGRAM to access the interactive state.
. . . STANDBY . . .
10:34:50 19-JUN-04
2. Access the configure sequence by selecting “CONFIGURE.”
[PROGRAM, CONFIGURE]
SAMPLER
3. Press the LEFT ARROW or RIGHT ARROW key to scroll through the configure options. The first option displayed is
the Set Clock configure option.
SELECT OPTION: (← →)
SET CLOCK
↓
↓
4. You can save the current program only when the sampler is configured for the extended programming mode. To
verify the programming mode setting, press the ENTER/PROGRAM key.
SELECT OPTION: (← →)
PROGRAMMING MODE
5. Select “EXTENDED.” Press the ENTER/PROGRAM key to accept the selection.
[BASIC, EXTENDED]
PROGRAMMING MODE
6. Press the RIGHT ARROW key to skip the Load Stored Program configure option.
SELECT OPTION: (← →)
LOAD STORED PROGRAM
7. Press the ENTER/PROGRAM key to access the Save Current Program configure option.
SELECT OPTION: (← →)
SAVE CURRENT PROGRAM
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Example: Save Current Program (Continued)
8. Select the number you want to use as the program “name.” Select “NONE” when you do not want to save a
program When the sampler has saved the program, it will display the next configure option. When you are done
configuring the sampler, press EXIT/PROGRAM to return to Standby.
SAVE PROGRAM AS
[#1, #2, #3, NONE]
9. When the sampler is properly installed, press the START SAMPLING key to run the program.
. . . STANDBY . . .
10:37:23
19-JUN-04
3.9.14 Flow Mode Sampling
The Flow Mode Sampling option directs the sampler to take a
sample at key times in a flow-paced sampling program. There
are two settings. The first setting directs the sampler to take a
sample at the start time. The second directs the sampler to take
a sample at the switch times (when the bottle set changes are
based on time). Both settings of the option are disregarded in
STORM sampling routines. (Display #40)
Sample at Start Time – If you select “YES,” the 3700R will
take the first sample at the start time entered in the program
sequence. If you select “NO,” the first sample is delayed until the
number of flow pulses, set in the program sequence, has counted
down to zero. (Display #270)
Sample at Time Switch – If you select “YES,” the sampler will
switch to a new bottle or set, take a sample, and reset the flow
pulse count. The next sample will occur after a full pulse
countdown. If you select “NO,” no samples be taken at the switch
time and the pulse countdown will not be reset. The switch will
occur in the middle of a pulse countdown and the first sample
will be deposited in the new bottle or set when the countdown is
completed. (Display #271)
3.9.15 Nonuniform Time
The Nonuniform Time option specifies the method by which nonuniform intervals are to be entered in the extended program
sequence (Display #s 26 or 27). If you select “clock-time,” you will
be able to enter a specific time and date for each sample event
when entering settings in the program sequence. If you select
“MINUTES,” you will be able to enter nonuniform intervals in
minutes. Nonuniform times are not available in a STORM sampling routine. (Display #280)
3.9.16 Calibrate Sampler
The Calibrate Sampler option adds or removes the calibration
settings to the program sequence. If you select “ENABLE,” the
calibration displays will be added to the program sequence and
you will be able to precisely calibrate the sample volumes.
(Display #290)
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3.9.17 Sampling
Stop/Resume
The Sampling Stop/Resume configure option lets you add stop
and resume settings (Display #s 100, 101, and 102) to the
program sequence.
The Stop/Resume settings appear in the key time section of the
program sequence. (You can enter as many as 24 times: 12 stop
times and 12 resume times.) For example, the Stop/Resume
option allows you to define a sampling routine, which will take
samples at intervals of 15 minutes between 6 a.m. to 8 a.m. and
between 4 p.m. to 6 p.m.. Sampling Stops and Resumes are not
available in a storm routine.
If you are using a time-switched sampling routine that includes
the use of stops and resumes, the sampler will reset the
time-switch interval at each resume time. If a routine with
time-switches every hour is programmed for stop and resume
times, the first time-switch would occur an hour after the resume
time.
Switches would repeat every hour until a stop time occurred or
the routine was completed. See Example Sampling with Stops
and Resumes.
Enable/Disable – Select “ENABLE” to add the stops and
resume settings to the program sequence. (Display #300)
Sample at Stop – The Sample at Stop setting directs the
sampler to take a sample at stop times. (Display #301)
Sample at Resume – The Sample at Resume setting directs the
sampler to take a sample at resume times. (Display #302)
3.9.18 Start Time Delay
The Start Time Delay option sets the amount of time in minutes,
between the time you press the start sampling key and the time
the sampling routine is initiated. The sampler’s response varies
according to specific entries: 0, 1, and entries greater than 1.
---- MINUTE DELAY
TO START (0 - 9999)
Display #310
An entry of 0 eliminates the delay to start time; the start time
occurs the moment you press start sampling. For example, if you
press start sampling at 10:32:15, the sampler will initiate a
time-paced sample event at 10:32:15.
The sampler will start clocking time intervals at the beginning of
the minute (HH:MM:00) of the first sample event. If a sampling
routine required 10-minute intervals and you pressed start sampling at 10:32:15, the sampler would begin the time interval at
10:32:00. It would initiate the second sample event at 10:42:00.
The sampler would begin the flow interval at 10:32:15 for
flow-paced routines.
If you entered a start-time delay of 1, the sampler would begin
the routine at the beginning of the next minute. Thus, if you
pressed start sampling at 10:32:15, the sampler would initiate
the sample event at 10:33:00. The sampler would begin time and
flow intervals at 10:33:00. If you enter a start-time delay of 2, the
sampler would begin time or flow intervals at 10:34:00. (Display
#310)
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Note
If you enter a start time, the sampler will disregard the start-time
delay. The sampler will use the start-time delay setting when
you do not enter the start time in the program sequence. When
using a start time delay of greater than 0, take care when the
sampler is being inhibited by another sampler, a flow meter, or a
Liquid Level Actuator.
3.9.19 Enable Pin
The Enable Pin option allows you to program the sampler’s
response to a device controlling pin F of the flow meter connector,
for example, a 4200 Series Flow Meter, a 4100 Series Flow
Logger, or the 1640 Liquid Level Actuator. There are four Enable
Pin setup options: Sample Upon Disable, Sample Upon Enable,
Reset Sample Interval, and Inhibit Countdown. The sampler disregards the Enable Pin configure option settings when running a
storm routine. Each of these options is discussed below.
Sample Upon Disable – When you are using a flow meter or
Liquid Level Actuator, “SAMPLE UPON DISABLE?” allows you
to direct the sampler to take a sample as soon as you disable the
sampler through pin F.
A response of “YES” causes the sampler to take a sample when
the pin is disabled; a response of “NO” prevents the sampler from
taking a sample. (Display #321)
The sampler determines an enable or disable condition by monitoring the voltage on pin F. It interprets high voltage as an
enable signal and low voltage or ground as a disable signal.
Sample Upon Enable – When you are using a flow meter or
Liquid Level Actuator, “SAMPLE UPON ENABLE?” allows you
to direct the sampler to take a sample as soon as the sampler is
enabled through pin F. A response of “YES” causes the sampler to
take a sample when the pin is enabled. A response of “NO” prevents the sampler from taking a sample when the pin is enabled.
(Display #322)
Reset Sample Interval – “Reset Sample Interval?” controls the
time- or flow-pulse countdown. If you select “YES,” a full sample
interval begins when pin F is enabled. If you select “NO,” the
interval will not be reset when the sampler is enabled; the settings entered in the “INHIBIT COUNTDOWN?” option will be
used. If you are sampling on a time-paced basis and wish to synchronize all sampling with real time, do not reset the sample
interval. (Display #323)
Inhibit Countdown – “ I N H I B I T C O U N T D O W N ? ” i s o n l y
applicable when you respond “NO” to “RESET SAMPLE
INTERVAL?” The Inhibit Countdown option controls the
countdown while the sampler is disabled. Select “YES” to freeze
the countdown to the next sample. The count will resume when
the sampler is enabled. Select “NO” to allow the countdown to
continue while the sampler is disabled. (Display #324)
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A sampler that has been inhibited while running a routine will
move to the next bottle set when enabled, if at least one sample
volume has been deposited in the current bottle set. This is true
for both time-switched and count-switched routines, and for
bottles sets composed of one or more bottles.
A sampler that has been inhibited while running a time-switched
routine will advance to the next bottle or bottle set, regardless of
the number of time-switches that elapse while the sampler is
inhibited.
If the bottle sets were switched every two hours and the sampler
has been inhibited for six hours, the restarted routine will begin
with the next bottle set. The routine may not continue with the
bottle set that would have been used had the sampler not been
inhibited.
3.9.20 Event Mark
The Event Mark option configures the sampler to send an event
mark to an interfaced flow meter or other equipment. The
sampler will supply a variable duration pulse of up to 700 mA at
12 V on pin E of the flow meter connector. Four types of signals
can be sent:
• a pulse at the beginning of the pre-sample purge
• a pulse at the beginning of forward pumping only
• a continuous signal during the entire pump cycle
• a continuous signal during forward pumping only
The event mark includes a signal sent on pin D which is interpreted and recorded by the Isco Flow meter as the bottle
number(s) for the sample event.
The bottle number signal consists of a number of 100 millisecond,
12-volt pulses that equal the bottle number; i.e., four pulses represent bottle #4, 20 pulses represent bottle #20.
The type of signal selected from the Event Mark configure option
affects the event mark signal on pin E. In Figure 3-9A, a pulse
signal is sent at the beginning of the pre-sample purge. In Figure
3-9B, a pulse signal is sent during the sample volume delivery
portion of the sample event. In Figure 3-9C, a continuous signal
is sent during the entire pump cycle. In Figure 3-9D, a continuous pulse is sent for the duration of the sample-volume
delivery.
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Presample Purge
Rinse Cycle
Pump Volume 1
A.
Pulse at Beginning of
Pre-sample Purge
Pump Volume 2
Pump Volume 3
Postsample Purge
Event Mark
Bottle Number
B.
Pulse at Beginning of
Forward Pumping
Only
Event Mark
Bottle Number
Event Mark
C.
Continuous During
Entire Pump Cycle
Bottle Number
D.
Continuous During
Forward Pumping
Only
Event Mark
Bottle Number
Figure 3-9 Event Mark and Bottle Number Signal Output
Continuous/Pulse Signal – The Continuous/Pulse setting
selects either continuous or pulse signals. Pulse signals are three
seconds in duration; continuous signals are three seconds or
longer and depend on the setting and the pump cycle. (Display
#330)
Continuous Signal Timing – The Pump Cycle/Fwd Pumping
settings will appear when you have selected “CONTINUOUS
SIGNAL.” Select “PUMP CYCLE” when you want a continuous
signal transmitted during the entire pump cycle, from the
beginning of the pre-sample purge to the end of the post-sample
purge. Select “FWD PUMPING” when you want a continuous
signal transmitted while the pump is delivering a sample
volume. (Display #331)
Pulse Signal – The Pulse Signal setting will appear when you
select “PULSE.” Two options are available. The first option,
“PURGE,” sends a pulse at the beginning of the pre-sample
purge. The second option, “FWD PUMPING,” sends a pulse at
the beginning of the sample delivery when the pump is running
forward. (Display #332)
3.9.21 Purge Counts
The Purge Counts option is used to override the number of pump
counts needed to clear the suction line in both pre-sample purge
and post-sample purge cycles.
The pre-sample purge count is normally set to 150 counts and
will be reset to this value if the sampler is reinitialized. The
post-sample purge count is derived from the suction line
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diameter and length settings. If your observations indicate that a
greater or lesser number of pump counts in either purge is
needed, you can change the count settings. Entries are to be
between 0 and 9,999 for both purges. You can obtain a purge
count using the pump forward or pump reverse keys. (Display #s
340 and 341)
3.9.22 Tubing Life
The Tubing Life option sets the number of pump counts needed
to trigger the “Replace Pump Tubing” warning. The warning is
activated when the pump count reaches the entered value, and
only appears after you press DISPLAY STATUS. You must reset the
pump counter after replacing the pump tubing. If you consistently experience a tubing failure at a pump count that differs
significantly from the current setting, enter that value here. The
factory-set value of 500,000 pump counts will deliver approximately 500 samples of 200 ml each, using a 3/8-inch-by-10-foot
vinyl suction line at a 5-foot suction head. (Display #350, 351,
and 352)
3.9.23 Program Lock
Select “ENABLE” to turn the lock on. When the Program Lock is
enabled, each protected display can be viewed, but no values can
be changed without first entering the pass-number: 3700. Once
the pass-number has been entered, you can change any value or
setting in either the program or configure sequence. (Display
#360)
3.9.24 Sampler ID
The Sampler ID option allows you to enter a 10 character identification number (ID) for the sampler. The ID number is used to
identify sampling reports produced by the Teledyne Isco Field
Printer and in files created by Samplink. The sampler is shipped
from the factory with 10 dashes (-) entered for the ID. (Display
#365)
Acceptable Characters – T h e I D f i e l d w i l l a cc e p t d i g i t s,
dashes, spaces, and periods. You can enter spaces, dashes, and
periods with three of the control keys. Enter a space with the
START SAMPLING key, a dash (-) with the MANUAL SAMPLE key, and
a period with the RESUME SAMPLING key.
3.9.25 Run Diagnostics
Run Diagnostics performs a number of diagnostic functions. This
option contains the software revision number; tests the sampler’s
RAM (Random Access Memory), ROM (Read Only Memory),
display, distributor, and pump; and lets you reinitialize RAM.
The d isp lay information is d iscussed below in order of
appearance.
Software Revision Number – The sampler will display the
software revision number for a short period of time.
Test RAM and ROM – RAM and ROM test messages replaced
the software revision display. A successful test is indicated by the
messages “RAM PASSED TEST” or “ROM PASSED TEST.” If
either RAM or ROM fail the test, the sampler displays one of the
following messages: “RAM FAILED TEST” or “ROM FAILED
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TEST” and beeps every three seconds until you turn it off. If
either the RAM or ROM fail the test, service the sampler.
Contact Teledyne Isco Technical Service for assistance.
LCD Test – After successful RAM and ROM tests, the sampler
will then test the LCD by first filling the display with solid rectangles and then printing the alphabet and other characters.
Each character position in the display should contain a character.
Pump Test – The next step tests the pump. During the test, the
pump will run briefly and the display will indicate an “OFF/ON”
number. The number should fall within the range of 50 to 200. If
the count falls below 50 or exceeds 200, have the pump serviced.
A count near 100 is typical.
Distributor Test – Following the pump test, you can test the
distributor. If you elect to test the distributor, the sampler will
move the distributor to Position 24, then return it to Position 1.
The positions are indicated on the display. If the message, “DISTRIBUTOR JAMMED” is displayed, check the routing of the
pump tubing and the bottles in the tub. If the tubing and bottles
are correctly positioned, the distributor drive mechanism may
need servicing. (Display #370)
Reinitialize Controller – In the final steps you reinitialize the
sampler. If you select “NO,” the sampler will return to the configure option list. If you select “YES,” the sampler will reset a
number of configuration and program settings, then you can turn
off the sampler. (Display #371)
Table 3-4 lists the reinitialized settings. Not all settings are
reset. Set Clock, Bottle Size, Suction Line, and Sampler ID configure-option settings remain unchanged. This reduces the
number of settings you would need to change if the sampler were
accidently reinitialized. The Pump Count total is not reset to
maintain an accurate count for the Tubing Life Warning.
3.9.26 Exit Configuration
This option allows you to leave the configure sequence and
return to the standby state. There are no input displays. Press
the ENTER/PROGRAM key to exit the configure sequence. You can
exit the configuration sequence at any time using the EXIT
PROGRAM key.
Table 3-4 Factory Configure Option Settings
Configure Option
Display Number
Factory Setting
SET CLOCK
210
Not Reset
BOTTLES AND SIZE
220, 221, 222, 223
Not Reset
SUCTION LINE
230, 231, 232
Not Reset
liquid detector
240
ENABLE
rinses
241
0
enter head manually
242
NO
LIQUID DETECTOR
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Table 3-4 Factory Configure Option Settings (Continued)
Configure Option
Display Number
Factory Setting
243
0
PROGRAMMING MODE
250
BASIC
LOAD STORED PROGRAM
255
SAVE CURRENT PROGRAM
260
# of retries
FLOW MODE SAMPLING
sample at start time
270
NO
sample at switch times
271
NO
NONUNIFORM TIME
280
MINUTES
CALIBRATE SAMPLER
290
DISABLE
SAMPLING STOP/RESUME
300
DISABLE
sample at stop times
301
NO
sample at resume times
302
NO
310
2
master /slave
320
DISABLE
sample upon disable
321
NO
sample upon enable
322
NO
reset sample interval
323
NO
inhibit countdown
324
NO
continuous /pulse
330
CONTINUOUS SIGNAL
pump cycle/fwd only
331
FWD PUMPING ONLY
purge/fwd pumping
332
FWD PUMPING
pre-sample counts
340
150
post-sample counts
341
BASED ON LINE LENGTH
reset pump counter
351
NO
# pump counts
352
Not reset
PROGRAM LOCK
360
DISABLE
SAMPLER ID
365
Not reset
START TIME DELAY
ENABLE PIN
EVENT MARK
PURGE COUNTS
TUBING LIFE
RUN DIAGNOSTICS
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Table 3-5 Factory Program Settings
Program Setting
Factory Setting
[TIME, FLOW]
PACED SAMPLING
10
TIME
UNIFORM/ NONUNIFORM
TIME INTERVALS
11
UNIFORM
[TIME, FLOW, STORM]
PACED SAMPLING
12
TIME
[TIME, FLOW]
BOTTLE GROUP
14
FLOW
-- MINUTE DELAY TO
FIRST TIMED SAMPLE
15
0 MINUTES
[DURING, AFTER]
TIME MODE
16
DURING
_MINUTE DELAY TO
SECOND GROUP SAMPLES
17
30
21
1 HOUR 0 MINUTES
SAMPLE EVERY
-- PULSES (1 - 9999)
22
10
TAKE -- TIMED
SAMPLE EVENTS (1-MAX)
23
1
SAMPLE INTERVALS OF
--MINUTES (1-99)
24
60
TAKE --- SAMPLES
(1 - MAX)
25
10
QUANTITY AT INTERVAL
1. -- AT -- MINUTES
27
1 AT 60 MINUTES
-- BOTTLES PER
SAMPLE EVENT (1 - 24)
30
1
-- SAMPLES PER
BOTTLE (1-MAX)
31
1
MULTIPLEX SAMPLES?
[YES, NO]
35
NO
[BOTTLES/SAMPLE,
SAMPLES PER BOTTLE]
36
SAMPLES PER BOTTLE
CHANGE BOTTLES BASED
ON [TIME, SAMPLE]
40
COUNT
CHANGE SETS BASED
ON [TIME, SAMPLE]
41
COUNT
CHANGE BOTTLES EVERY
--HOURS, -- MIN.
42
2 HOURS 0 MINUTES
CHANGE SETS AFTER
-- HOURS -- MINUTES
43
2 HOURS 0 MINUTES
CHANGE BOTTLES AFTER
-- SAMPLES
44
1
SAMPLE EVERY
-- HOURS -- MINUTES
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Table 3-5 Factory Program Settings (Continued)
Program Setting
Display Number
Factory Setting
CHANGE SETS AFTER
SAMPLES
45
1
SAMPLE CONTINUOUSLY?
[YES, NO]
48
NO
SAMPLE VOLUMES OF
--- ml EACH (10 - MAX)
50
200
--- COMPOSITE
SAMPLES (0 - MAX)
60
10
70
10
ENTER START TIME?
[YES, NO]
90
NO
STORM ENABLED AFTER
HH:MM MM/DD
93
ENTER FIRST SWITCH TIME?
[YES, NO]
95
NO
100
0
110
2 HOURS 0 MINUTES
SUCTION HEAD OF
-- FEET (1 - MAX)
-- STOP or RESUME
TIMES (0 - 24)
MAX FLOW INTERVAL OF
-- HOURS, --MINUTES
3.10 Extended
Programming Mode
All sampling capabilities available in the basic programming
mode are available in the extended programming mode. (A
listing of the capabilities is in Table 3-3.) The extended programming mode provides several additional capabilities: Nonuniform Time Pacing, an additional multiplexing scheme
(multiple-bottle compositing), Sampling Stops and Resumes,
program storage, and Flow-Mode Sampling controls.
The procedure for programming the sampler in the extended
mode is the same as that used to program the sampler in the
basic programming mode. There are some exceptions, however.
The extended mode modifies the sections of the program
sequence to allow you to take advantage of the additional features. The Sample Pacing program section is extended to include
settings for nonuniform times. The Sample Distribution section
is modified to let you program the sampler for multiple-bottle
compositing. The procedure and displays used to program the
sampler for bottles-per-sample and samples-per-bottle multiplexing, and sequential sampling are somewhat different. The
section is also extended to allow you to switch multiplexed
bottles or bottle sets after programmed periods of time. (With the
extended mode, you can still switch bottles after a programmed
number of samples have been deposited.) The Key Times section
is extended to allow you to enter the time of the first bottle or
bottle set change. If you have enabled the Sampling Stops and
Resumes configure option, the Key Times section is extended to
included displays for sampling stops and resumes.
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Each of these extended features is discussed briefly below. You
may find it helpful to refer to Figures 3-10, 3-11, and 3-12, which
chart the program sequence in the extended mode.
3.10.1 Extended Mode
Sample Pacing
In the extended programming mode, the Sample Pacing section
allows you to select flow pacing, or one of two types of
time-pacing: uniform or nonuniform. If you select uniform time
intervals, the settings for time intervals are identical to the time
intervals entered in the basic programming mode.
Nonuniform times allow you to pace the sampler at irregular
intervals. Before you enter nonuniform time intervals, you must
specify either minutes or clock times in the Nonuniform Times
configure option. You can enter nonuniform intervals in two
ways. The first method allows you to define the interval between
each sample event in minutes. For example, you can program the
sampler to take sample #2 after an interval of 10 minutes,
sample #3 after an interval of 30 minutes, sample #4 after an
interval of 60 minutes, and so on. Sample #1 would be taken at
the start time. The second method allows you to enter a specific
time and date for each sample event. For example, with nonuniform time pacing, you can collect samples at specific times
and dates at irregular intervals: 6 a.m. on April 15, noon on April
15, 7 a.m. on April 16, and 1 p.m. on April 16.
If you have several sequences of nonuniform times, you can use
the program storage feature to save the programs using each
sequence.
3.10.2 Extended Mode
Sample Distribution
The extended Sample Distribution section expands the multiplexing capabilities of the sampler. Both the bottles-per-sample
and samples-per-bottle multiplexing are available; however, the
procedure used to program them differs slightly from the proc e d u r e u s e d i n t h e b as i c p r o gr am m i n g m o d e. E x a m p l e
Time-Paced Multiplexed (samples-per-bottle) Sampling demonstrates the procedure used for samples-per-bottle multiplexing;
Example Extended Flow-Paced Multiplexed (bottles-per-sample)
Sampling shows the bottles-per-sample multiplexing procedure.
The extended mode also offers multiple bottle compositing; refer
to Example Flow-Paced Sampling / Time-Based Bottle Sets.
In the extended programming mode, you can switch bottles or
bottle sets after a programmed time period elapses or after a programmed number of samples have been deposited. The displays
used to specify the type of switches are shown in the Sample Distribution section of Figures 3-10, 3-11, and 3-12. Display #40
allows you to select either “TIME” or “SAMPLES.” If you select
“TIME,” the bottles can be changed after a programmed period of
time. If you select “SAMPLES,” the bottles can be switched after
a programmed number of samples. In Display #41, which allows
you to switch bottle sets, you can select either “TIME” or
“SAMPLES/BTL.” If you select “TIME,” the bottle sets can be
changed after a programmed period of time. If you select
“SAMPLES/BTL,” the bottle sets can be changed after a pro-
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grammed number of samples. You can use select either “TIME,”
“SAMPLES,” or “SAMPLE/BTL” settings with both time- and
flow-paced sampling.
3.10.3 Extended Mode
Sample Volumes
The extended mode Sample Volumes section is identical to the
basic Sample Volume section.
3.10.4 Extended Mode Key
Times
The extended mode Key Times section has two additional sets of
displays which allow you to specify the time of the first bottle or
bottle set change and to set up the sampling stop and resume
times.
First Switch Time – The first switch time displays will appear
only when you have specified bottle or bottle set changes based
on time in the Sample Distribution section. If you select “TIME”
rather than “SAMPLES” in the “CHANGE SETS BASED ON
[TIME, SAMPLES]” display, you first will be asked if you want to
enter a setting for the first switch time. If you respond “YES,” you
will be prompted for the time of the first bottle or set change. The
first time-switch displays are indicated by Display #s 95, 46, and
47 in Figure 3-11.
The first switch- time setting allows you to control the times of
each bottle switch without delaying the routine and thereby
missing samples. For example, if you have programmed the
sampler for time switches every hour and you want the switches
to occur on the hour, you can set the time of the first switch at the
next even hour, start the sampling routine early, and deposit
samples in the first bottle set until the first switch time. At the
first switch time, the distributor moves to the next bottle set. The
first bottle set may not be completely filled; however, by starting
the routine early, you can sample until the bottle switches are
placed “on schedule” to avoid missing any samples. If you do not
enter a first switch time, the sampler will begin timing the
switch interval from the start time for the routine and the first
bottle or bottle set will receive samples for the full time period.
Switch times are not available in STORM routines.
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[PROGRAM, CONFIGURE]
Configure
To
Configure
SAMPLER
Program
Display #12
Sample Pacing
[TIME, FLOW, STORM ]
Storm
PACED SAMPLING
Flow
Time
Display #11
Display #22
[UNIFORM, NONUNIFORM]
TIME INTERVALS
Uniform Time
SAMPLE EVERY
---- PULSES (1 - 9999)
Nonuniform Time
Display #21
Display #20
SAMPLE EVERY
-- HOURS -- MINUTES
MODIFY SEQUENCE?
[YES, NO]
Yes
No
Display #25
TAKE --- SAMPLES
(1 - MAX)
Clock-Time
Minutes
Display #26
TAKE SAMPLES AT
1. HH:MM DD-MM
Display #27
QUANTITY AT INTERVAL
1. -- AT --- MINUTES
Display #30
Sample Distribution
13 or more Bottles Per
Sample Event
-- BOTTLES PER
SAMPLE EVENT (1-24)
More Than One Bottle Per Sample Event
One Bottle Set
More Than One Bottle Set
One Botttle Per Sample Event
Display #31
12 or less Bottles Per
Sample Event
-- SAMPLES PER
CHANGE BOTTLES BASED
ON [TIME, SAMPLES/BTL]
ON [TIME, SAMPLES]
Time
Time
Count
Display #43
CHANGE SETS AFTER
-- HOURS -- MINUTES
BOTTLE (1- MAX)
Display #40
Display #41
CHANGE SETS BASED
Display #42
Display #45
CHANGE SETS AFTER
-- SAMPLES
Count
CHANGE BOTTLES AFTER
-- HOURS -- MINUTES
Other
Display #44
CHANGE BOTTLES AFTER
-- SAMPLES
2 Bottles
Display #48
SAMPLE CONTINUOUSLY?
[YES, NO]
Figure 3-10 Programming Mode: Sample Pacing and Distribution
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Continued from Figure 3-10
Display #50
Sample Volume
SAMPLE VOLUMES OF
--- ml EACH (1-MAX)
Display #70
SUCTION HEAD OF
-- FEET (1-MAX)
See Chapter 3
Liquid Detector configure option
Display #80
CALIBRATE SAMPLE
VOLUME? [YES, NO]
See Example 7
Calibration Procedure
Display #90
Key Times
ENTER START TIME?
[YES, NO]
Yes
No
Flow
Time
Display #92
Display #91
START FLOW COUNT AT
HH:MM DD-MM
TAKE FIRST SAMPLE AT
HH:MM DD-MM
Change Bottles/Sets
Based on Samples
Change Bottles/Sets
Based on Time
Display #95
Yes
One Bottle Per Sample
Display #46
FIRST BOTTLE CHANGE
AT HH:MM
DD-MM
ENTER FIRST SWITCH
TIME? [YES, NO]
No
More Than One Bottle Per Sample
Display #47
FIRST SET CHANGE AT
HH:MM
DD-MM
Display #100
-- STOP or RESUME
TIMES (1-24)
See Chapter 3
Sampling Stop/Resume configure option
Display #101
STOP SAMPLING AT
1. HH:MM
DD-MM
Display #102
RESUME SAMPLING AT
1. HH:MM
DD-MM
PROGRAMMING SEQUENCE
. . . COMPLETE . . .
Storm
From STORM
Figure 3-11 Extended Programming Mode: Sample Volume and Key Times
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First Bottle Group
[PROGRAM, CONFIGURE]
SAMPLER
TIME MODE
Configure
FIRST BOTTLE GROUP
Display #15
Program
--- MINUTE DELAY TO
FIRST GROUP SAMPLE
Display #12
[TIME, FLOW, STORM ]
PACED SAMPLING
Display #23
Storm
TAKE -- TIMED
SAMPLE EVENTS (1 - MAX)
Display #24
SAMPLE INTERVALS OF
-- MINUTES (1 - 999)
Display #30
__ BOTTLES PER
SAMPLE EVENT (1 - MAX)
Display #31
__ SAMPLES PER
BOTTLE (1 - MAX)
Display #50
SAMPLE VOLUMES OF
--- ml EACH (10 - MAX)
Second Bottle Group
-- BOTTLES, -----ml
AVAILABLE
Display #14
[TIME, FLOW]
SECOND BOTTLE GROUP
Flow
Time
Display #16
Display #17
[DURING, AFTER]
FIRST GROUP
__ MINUTE DELAY TO
SECOND GROUP SAMPLES
Display #22
Display #24
SAMPLE EVERY
---- PULSES (1 - 9999)
SAMPLE INTERVAL OF
___ MINUTE (1 - 9999)
Display #110
MAX FLOW INTERVAL OF
-- HOURS -- MINUTES
Display #30
Display #70
STORM Key Times
SUCTION HEAD OF
-- FEET (1-MAX)
-- BOTTLES PER
SAMPLE EVENT (1 - MAX)
Display #31
-- SAMPLES PER
BOTTLE (1 - MAX)
Display #80
CALIBRATE SAMPLE
VOLUME? [YES, NO]
Display #90
ENTER START TIME?
[YES, NO]
Display #93
STORM ENABLED AFTER
HH:MM
DD-MMM
PROGRAMMING SEQUENCE
. . . COMPLETE . . .
Figure 3-12 Extended Programming Mode: STORM Programming
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SAMPLE VOLUMES OF
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Stops and Resumes – The Stops and Resumes settings are
available only when you have enabled the Sampling
Stop/Resume configure option. You must first enter the number
of stops and resumes, from 0 to 24. (Enter 0 if you want to omit
the stop and resume settings without returning to the configure
sequence and disabling the Stops and Resumes option.) Then
enter the stop and resume clock times. The first entry will be a
stop time. Refer to the Key Times section of Figure 3-12, Display
#s 100, 101, and 102.
Determining the Number of Samples With Stops and
Resumes – When using stops and resumes, determining the
number of samples you want deposited in the container requires
a little planning. With a time-paced routine, the 3700 will always
take a sample automatically at the start time. It will not take a
sample at the stop time unless you have selected “ENABLE” in
the Sample at Stop Time display of the Sampling Stops and
Resumes configure option, even if the stop time falls at a
scheduled sample event time. No sample will be taken at the
resume time unless you have selected “ENABLE” in the Sample
at Resume display of the Sampling Stops and Resumes option.
When you are using Stops and Resumes with flow-paced routines, the 3700 will not take a sample at the start time, unless
you have configured the sampler to do so in the Flow Mode Sampling configure option. With flow-paced routines, no sample will
be taken at the stop time unless you have selected “ENABLE” in
the Sample at Stop Time display of the Sampling Stops and
Resumes option. The 3700 will not take a sample at the resume
time unless you have selected “ENABLE” in the Sample at
Resume display of the Sampling Stops and Resumes option.
3.11 Start Times
This section discusses the sampler’s start times. It begins by outlining the sequence of events preceding the start time for most
sampling routines.
After programming, you must start the sampling by pressing the
start sampling key. Depending on the program and configure
option settings, the sampling routine may not start at soon as
you press the key. The “Delay to Start Time” is the period
between the time you press start sampling and the start time for
the routine. Figure 3-13 diagrams the sequence of events preceding the start time.
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START
SAMPLING
START
TIME
Delay to
Start Time
Determined
by start time
entry or,start
time delay
Sampling
Routine
Figure 3-13 Simplified Start Time Diagram
The start time for a routine is either the programmed start time
or the time at which the delay-to-start time expires. The programmed start time is determined by entries made in Displays
#90, #91, #92, and #93. The delay-to-start time is determined by
the entry in Display #310 of the Start Time Delay configure
option. These input displays are shown in Table 3-6 and in the
charts in Figures 3-8, 3-10, 3-11, and 3-12.
Note
Unless the sampling routine contains a programmed start time
(Displays #91, #92, or #93), the sampler will delay the start
time according to the amount of time specified in the Start
Time Delay configure option. A programmed start time entry
always overrides any settings made in the Start Time Delay
configure option.
Teledyne Isco 4200 Series Flow Meters and 4100 Series Flow
Loggers provide two essential functions for certain sampling
applications. They send flow-pacing signals — flow pulses — to
the sampler for flow-paced sampling. The second function provides disable (inhibit) or enable signals to the sampler. A sampler
receiving a disable signal will suspend the sampling routine until
it receives an enable signal.
The sampler will disregard a disable signal it receives from a
flow meter during the delay-to-start time. If the sampler is disabled when the start time occurs, it will suspend the routine
until it is enabled. Once enabled, the sampler will begin the time
or flow intervals. The sampler will initiate a sample event when
enabled for all time-paced routines. For flow-paced routines, it
will initiate a sample event when the sampler is configured to
take a sample-upon-enable in the Enable Pin configure option.
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If the sampler is enabled when the start time occurs, it will begin
the routine. The sampler will initiate a sample event at the start
time for all time-paced routines. It will initiate a sample event at
the start time for flow-paced routines when configured for
sample at start time in the Flow Mode configure option. Refer to
Figure 3-14. The diagram shows the sampler’s response when
enabled or disabled at the start time for most basic and extended
mode routines.
Figure 3-15 diagrams the sequence of events preceding a routine
programmed for nonuniform clock times. Nonuniform clock time
programming allows you to enter a specific time and date for
each sample event. Samplers programmed with nonuniform
clock times may skip a number of samples if disabled for long
periods. If the sampler is disabled and subsequently enabled, it
will initiate only one event to compensate for the skipped sample
events even if several sample event times have been passed.
Note
Nonuniform clock time programming is designed to replace
flow pacing when a flow meter is not available at the site.
Before using a sampler programmed for nonuniform clock
times with a flow meter, be sure flow pacing is not a more
appropriate application.
Manual sample key and programmed start times – T h e
sampler will disregard the manual sample key during the
delay-to-start time and during the disable period. The periods
where the sampler disregards disable signals (Delay to Start)
and the manual sample key (when disabled) appear in Figures
3-14 and 3-15.
Start Time Delay – Entries made in the Start Time Delay configure option affect the start times. The Start Time Delay section
discusses this configure option.
Table 3-6 Start Time Displays
ENTER START TIME?
[YES, NO]
Display #90
TAKE FIRST SAMPLE AT
HH:MM
DD-MMM
Display #91
START FLOW COUNT AT
HH:MM
DD-MMM
Display #92
STORM ENABLED AFTER
HH:MM
DD-MMM
Display #93
---- MINUTE DELAY
TO START (0 - 9999)
Display #310(Start
Time Delay configure
option)
(time-paced sampling)
(flow-paced sampling)
(storm-paced sampling)
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I
I
I
I
Figure 3-14 Start Time Diagram
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Figure 3-15 Start Time Diagram for Nonuniform Time Routines
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3.12 Stormwater Sampling
Many stormwater runoff monitoring permits require a first-flush
grab sample within the first 30 minutes of the storm event and a
time- or flow-paced composite sample during the remainder of
the event. The 3700 Sampler’s STORM pacing is ideal for monitoring storm events. Storm pacing allows you to:
• Divide the sampler’s bottles into two groups. The first
bottle group receives the first flush grab sample. The
grab sample is always a time-paced sample. The second
bottle group receives either a flow-paced or time-paced
sample.
• Collect samples for the second bottle group after
collecting the first-flush samples or collect samples for
both groups at the same time. See Figures 3-16 and
3-17.
• Distribute sample volumes to both bottle groups sequentially or in any of the three multiplexing schemes:
bottles-per-sample, samples-per-bottle, or
multiple-bottle compositing.
• Use an Isco 4200 Series Flow Meter or a 4100 Series
Flow Logger to enable or disable the sampler according
to the level or flow rate of the flow stream or to specific
amount of rainfall.
• Use a maximum flow interval setting to terminate a
STORM routine that uses flow-paced sampling.
The maximum-flow-interval setting affects routines that fill
the second bottle group with flow-paced samples. The maximum-flow-interval setting limits the amount of time between
flow-paced sample events. For example, if the flow rate
declines so that the amount of time between flow-paced sample events exceeds a maximum-flow-interval setting of two
hours, the sampler will terminate the routine when more than
two hours elapses between events.
The maximum-flow-interval setting allows the sampler to terminate the routine when the flow rate falls below an acceptable rate or drops off completely. This limits the sampling
routine to one storm event so that samples from multiple
storm events are not deposited into the bottle groups.
3.12.1 Storm Sampling
Checklist
This section provides two checklists: a list of suggested storm
monitoring equipment and a brief installation checklist. Notes on
terminating a routine, manual sampling during a storm routine,
and a storm routine’s run state displays follow the checklist.
Example Storm Sampling contains a STORM programming
example.
You can find additional information about storm monitoring
installations in the Teledyne Isco Storm Water Runoff Monitoring Pocket Guide. The pocket guide contains the following
information:
• How to connect the sampler and rain gauge to the flow
meter
• Programming examples for flow meters and samplers
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• How to start and restart the monitoring installation
Equipment Checklist – The equipment listed below is suggested for typical storm-event monitoring:
• 3700 Sampler and power source.
You can use a 2-, 4-, 8-, or 24-bottle configuration for
STORM routines (depending on which 3700 model you
have)
• 4200 Series Flow Meter or 4100 Series Flow Logger, and
power source
• A Sampler-to-Flow Meter Connect Cable
Optional Equipment Checklist –
• Rain gauge with cable and connector (Rain gauges are
required for rain-event triggered sampling)
• Flowlink software (requires IBM-compatible computer
system)
Although the flow meter contains the sampler-enable
conditions most often used in storm water runoff
monitoring, you can use the Flowlink system to
download many additional sample enable conditions to
the flow meter. Refer to the Flowlink help menu for
more information.
• Interrogator communication line kit to connect a
computer to the flow meter.
This kit provides the computer-to-flow meter cabling.
Isco Flow Meters can also be equipped with a modem to
communicate with Flowlink over standard telephone
lines.
• Solar Panel Battery Charger.
Installation Checklist – This checklist summarizes the four
steps required to set up a storm-monitoring installation:
1. Program and install the flow meter. Install the rain gauge,
if used.
You can program 4200 Series Flow Meters for sampler
enable control conditions from the flow meter front panel
or use Flowlink and a computer to download the desired
condition. The 4100 Series Flow Loggers must be programmed with Flowlink.
NOTE: You can program the sampler to start the routine
at an exact time and date with a start-time entry. You do
not need to use a flow meter to enable the sampler.
2. Program and install the sampler.
Programming the sampler includes adjusting certain configuration option settings as well as entering the STORM
program settings. Table 3-7 lists the configure options and
their recommended STORM settings.
3. Connect the flow meter to the sampler with the connect
cable.
4. Turn the flow meter on. Turn the sampler on and start the
sampling routine by pressing the start sampling key.
Connect the flow meter to the sampler and start the flow
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meter before you press the start sampling key on the sampler. If you are using the flow meter to detect a storm event
and enable the sampler when the event occurs, the sampler
must be disabled by the flow meter when you press the
start sampling key. If the sampler is not disabled, it will
begin the routine as soon as you press the key. This means
that the flow meter must not detect the enable control conditions. The flow meter will disable a sampler only when
the conditions are not satisfied.
Terminating the Routine – A storm routine will terminate
under the following conditions:
• The sampler completes the routine
• A flow meter disables the sampler when the
enable-control condition is no longer satisfied. Once a
sampler running a storm routine has been disabled,
however, it cannot be re-enabled if control conditions are
satisfied again. You can prevent the sampler from being
disabled by “latching” the sampler enable through the
flow meter’s control condition
• The time between flow-paced sample events exceeds the
storm routine’s maximum flow interval setting
Manual Samples – Manual sampling is not available during a
storm routine. If you press MANUAL SAMPLE during a storm
routine, the sampler will disregard the key.
Run State Displays – Run state displays for storm routines are
identical to displays used with conventional routines. However,
the displays for the first and second bottle groups will alternate
with each other.
Table 3-7 Recommended Configurations for Storm Sampling
Configure Option
Display Number
Recommended Setting
210
Enter correct time and date.
Portable/Refrig
220
Select Portable for either the compact or standard 3700
sampler.
2, 4, 8, 24
222
Select 4 or 24, depending on your model, bottle configuration, and base section. Do not select 1. If the sampler is configured for one bottle (composite sampling), the storm branch
is not accessible.
Bottle Volume
223
For 3700 Standard:
4 bottles, enter 3800 ml
Set Clock
Bottles and Sizes
24 plastic bottles, enter 1000 ml
24 glass bottles, enter 350 ml
Suction Line
230, 231, 232
Enter correct settings.
Liquid Detector
Liquid Detector
240
Select “ENABLE.”
Rinses
241
0
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Table 3-7 Recommended Configurations for Storm Sampling (Continued)
Configure Option
Display Number
Recommended Setting
Enter head manually
242
NO
# of retries
243
0
Programming Mode
250
Select “EXTENDED.”
Load Stored Program
255
Load only a stored STORM program.
Save Current Program
260
Not applicable.
Sample at start time
270
Disregarded by STORM routines.
Sample at switch times
271
Disregarded by STORM routines.
Nonuniform Time
280
Disregarded by STORM routines.
Calibrate Sampler
290
Select “DISABLE.”
Sampling Stop/resume
300
Sample at stop times
301
Disregarded by STORM routines.
Sample at resume times
302
Disregarded by STORM routines.
Start Time Delay
310
Flow Mode Sampling
Enable Pin
Sample upon disable
321
Disregarded by STORM routines.
Sample upon enable
322
Disregarded by STORM routines.
Reset sample interval
323
Disregarded by STORM routines.
Inhibit countdown
324
Disregarded by STORM routines.
Continuous /pulse
330
Select preferred Event Mark.
Pump cycle/fwd only
331
Select preferred Event Mark.
Pre-sample counts
340
Enter preferred count.
Post-sample counts
341
Enter preferred count.
Reset pump counter
351
Reset if required.
# pump counts
352
Enter preferred count.
Program Lock
360
Select “ENABLE” or “DISABLE, “as preferred.
Sampler ID
365
Enter appropriate ID.
Event Mark
Purge Counts
Tubing Life
Run Diagnostics
No setting required.
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3.13 Programming the
Sampler for a Storm
Routine
The extended programming mode contains two program
sequences. The first sequence contains the displays for time- and
flow-paced routines. The second sequence contains the displays
for STORM paced routines. Figures 3-10 and 3-11 show first
sequence displays; Figure 3-12 shows the STORM displays.
The storm input displays are divided into three sections. The
first section contains the displays that control the pacing and distribution to the first bottle group. The second section contains
the displays that control the pacing and distribution for the
second bottle group. The third section controls the start time for
the routine and may include calibration and manual suction
head displays.
3.13.1 First Section: First
Bottle Group Settings
The first section contains the input displays that:
• Set a delay to the first sample event of the first bottle
group.
• Set the time pacing for the first bottle group.
• Allocate the bottles for the first bottle group.
• Determine sample distribution for the first bottle group:
sequential, samples-per-bottle multiplexing,
bottles-per-sample multiplexing, or multi-bottle compositing.
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Figure 3-16 Storm Sampling: Flow Pacing for the Second Bottle Group
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Figure 3-17 Storm Sampling: Time Pacing for the Second Bottle Group
The “TIME MODE” message marks the beginning of the first
section. This message is followed by Display #15, below.
-- MINUTE DELAY TO
FIRST GROUP SAMPLE
Display #15
Use this display to set amount of time between the time the
sampler is enabled and the first sample delivered to the first
bottle group. (The sampler may be enabled at the start time.)
The acceptable range of values for the delay to first group sample
is 0 to 999 minutes. If the delay is 0, the sampler will take the
first sample when enabled by the flow meter. Subsequent
time-paced samples will occur at the time interval entered in
Display #23.
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How to allocate bottles to the bottle groups – Use the next
three displays to determine the both the sample distribution and
the number of bottles allocated to the bottle groups.
TAKE 2 TIMED
SAMPLE EVENTS (1 - MAX)
Display #23
3 BOTTLES PER
SAMPLE EVENT (1 - MAX)
Display #30
1 SAMPLES PER
BOTTLE(1 - MAX)
Display #31
A bottle group can contain one or more bottles. You can allocate
all bottles but one to the first bottle group. The STORM routine
will automatically allocate the remaining bottles (or bottle) to the
second bottle group. (It obtains the total number of bottles from
the bottle number setting in the bottles and sizes configure
option.) Refer to the displays above; a 24-bottle sampler programmed to distribute samples to three bottles at two sample
events would allocate six bottles to the first bottle group. The
remaining 18 bottles to the second bottle group.
Sample distribution and sample volumes for the first and
second bottle groups – STORM sampling supports sequential
sampling as well as all three types of multiplexing:
bottles-per-sample multiplexing, samples-per-bottle multiplexing, and multiple-bottle compositing. These distribution
schemes are available for both bottle groups. Because STORM
programming is part of the extended programming mode, the
sample distribution displays used (Display #s 30 and 31) are
identical to other extended mode programming routines. Refer to
Example Time-Paced Multiplexed (samples-per-bottle) Sampling
for samples-per-bottle multiplexing, Example Extended
Flow-Paced Multiplexed (bottles-per-sample) Sampling for
bottles-per-sample multiplexing, and Example Flow-Paced Sampling / Time-Based Bottle Sets for multiple-bottle compositing.
To enter a sample volume for the first bottle group, enter the
volume in Display #50.
3.13.2 Second Section:
Second Bottle Group
The second section contains input displays for the second bottle
group. It includes displays that:
• Set the pacing for the second bottle group.
• Determine when the sampler begins filling the second
bottle group: during the same time period as the first
bottle group or after it fills the first bottle group.
• Set the maximum flow interval.
• Determine the sample distribution for the second bottle
group: samples-per-bottle multiplexing,
bottles-per-sample multiplexing, or multiple-bottle
compositing.
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After you’ve completed the entries for the first bottle group, the
sampler will present the following message:
-- BOTTLES, ----- ml
AVAILABLE
This message marks the beginning of the second section. It
reports the number of bottles allocated for the second bottle
group and the total volume of their combined capacity. The
sampler displays this information to help you enter the sample
distribution scheme and sample volumes for the second bottle
group. If the remaining number of bottles or the capacity is not
satisfactory, reprogram the first section.
Pacing for the Second Bottle Group – T h e n e x t d i s p l a y,
Display #14, allows you to select time or flow pacing for the
second bottle group.
[TIME, FLOW]
SECOND BOTTLE GROUP
Display #14
Depending on your selection, the STORM sequence will follow
one of the two paths shown for the second section in Figure 3-10
or 3-11.
Time-Pacing – When you select “TIME” from Display #14, two
time-pacing displays (#17 and #24) will follow.
____ MINUTE DELAY TO
SECOND GROUP SAMPLES
Display #17
SAMPLE INTERVAL OF
____ MINUTE (1 - 9999)
Display #24
Use Display #17 to set the delay to the second bottle group. Like
the delay to the first group sample, the delay to the second group
sample determines the period between the time the sampler is
enabled and the first sample is deposited in the second bottle
group. You can use this setting to fill the second bottle group
during the same time the sampler fills the first bottle group or
after the sampler fills the first bottle group. Figure 3-17 shows a
time diagram for a STORM routine that uses time pacing for
both the first and second bottle groups.
To fill the second bottle group after the first, be sure amount of
time you enter for the delay to second group is equal to (or
greater than, if necessary) the delay to the first group plus the
total amount of time required to fill the first group. The sampler
will begin timing both delays (delay to first and delay to second
bottle group) at the same time. Refer to the lower diagram in
Figure 3-17.
Entries made in Display #s 15, 23, and 24 (“ -- MINUTE DELAY
TO FIRST GROUP SAMPLE,” “TAKE -- TIMED EVENTS,” and
“SAMPLE INTERVALS OF -- MINUTES”) determine the
amount of time required to fill the first bottle group.
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For example, if the delay to the first group were 0 and the routine
required two timed sample events at 30-minute intervals, the
sampler would take 30 minutes to fill the first bottle group. The
first sample event would occur after the programmed delay to
group sample; the second sample event would occur 30 minutes
later.
Use Display #24 to enter the time interval for the second bottle
group. You can use any interval; you do not have to use the same
time interval for the second bottle group that you used for the
first group.
Flow Pacing for the second bottle group – I f y o u n e e d a
flow-paced sample for the second bottle group, select “FLOW”
from Display #14. Three flow pacing displays (#16, #22, and
#110) will follow.
[DURING, AFTER]
TIME MODE
Display #16
SAMPLE EVERY ---- PULSES
(1 - 9999)
Display #22
MAX FLOW INTERVAL OF
__ HOURS
__ MINUTES
Display #110
Use Display #16 to determine when the sampler will begin filling
the second bottle group. Select “DURING” if you want the second
bottle group filled during the same time period as the first bottle
group.
Select “AFTER” to begin the flow pacing for the second bottle
group after the sampler fills the first bottle group. If you select
“DURING,” the sampler will begin counting flow pulses when it
begins timing the delay to first group sample. The sampler will
take the first sample of the second bottle group as soon at it
counts a full flow-pulse interval. If you select “AFTER,” the
sampler will begin counting flow pulses after the last sample
event of the first bottle group. Use Display #22 to enter the
flow-pulse interval for the second bottle group.
The third flow paced display allows you to enter the maximum
flow interval. The acceptable range of values for the maximum
flow interval is one minute to 99 hours and 59 minutes.
The sampler will terminate the sampling routine when the
amount of time between flow-paced samples exceeds the limit set
for the maximum flow interval. The maximum flow interval will
terminate the routine even if all bottles of either bottle group
have not been filled. Once the sampler terminates a routine, the
sampler cannot be reenabled by the flow meter should the flow
meter detect enable control conditions again.
Note: If the second bottle group requires flow-paced samples, the
sampler may fill the second bottle group before it fills the first
bottle group. This can occur when the flow rate monitored by the
flow meter is higher than anticipated and the flow pulse interval
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has not been adjusted to reflect the higher rate. If this occurs, the
sampler will continue the first bottle group until all samples
have been taken. You can adjust the pulse interval by
• Reprogramming the flow meter to change the number of
flow pulses sent to the sampler by the flow meter.
• Reprogramming the sampler to change the flow pulse
interval in the flow-pacing segment of the STORM
routine.
• Reprogramming both the flow meter and the sampler.
STORM Key Times – The third section, STORM Key Times,
contains the displays used to:
• Enter suction-head measurements
• Enable the calibration routine
• Enter a start time for the storm routine
The input displays of the STORM program sequence vary
according to configure option settings. The first two displays
(“SUCTION HEAD OF -- FEET” and “CALIBRATE SAMPLE
VOLUME”) appear if the sampler is configured to add them to
the storm program sequence. Entries in the Liquid Detector configure option and the Calibrate Sampler configure option add or
exclude these displays from the sequence. Example Storm Sampling does not include these displays.
To enter a specific start time for the routine, select “YES” in
Display #90 (illustrated in Step 17 of Example Storm Sampling).
The sampler will prompt you to enter a start time with Display
#93 (step 18). If you select “NO,” the start time will be delayed by
the amount set in the Start Time Delay configure option.
After you’ve made these entries, the sampler will present the
“PROGRAMMING SEQUENCE COMPLETE” message and
return to standby.
Programmed start times, start time delays, and delays to
group sample – Samplers programmed for storm sampling
respond to start-time delays and programmed start times in the
same way as samplers programmed for any other basic or
extended mode routines.
The sampler will delay the storm routine until the start time
entered in the third segment of the STORM sequence. (See
Display #93.) If the sampler is enabled by the flow meter at the
start time, the sampler will begin to time the delay to the first
bottle group. If the sampler is disabled by the flow meter at the
start time, the sampler will suspend the routine until it becomes
enabled. Once the sampler is enabled by the flow meter, the
sampler will begin the delay to first timed sample event and continue the STORM routine.
STORM sampling routine has four delay periods that vary
slightly with the programming entries. Every STORM routine
will have a delay to start time and delay to first group sample.
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Depending on whether the second bottle group is time paced or
flow paced, the third delay period will be either the delay to
second group sample or the “During/After” delay.
• Delay-to-Start Time. The start time is simply the time
the sampler begins the routine. The sampler begins
timing the delay-to-start time when you press the start
sampling key. The sampler will not check for an enable or
disable signal from a flow meter, Liquid Level Actuator,
or another sampler until the start time.
The delay-to-start time is the amount of time between
the time you press the start sampling key and the start
time. The delay-to-start time is determined by the
programmed start-time entry for the STORM routine
(Display #93) or the Start Time Delay configure option.
The Start Time Delay, set in the configure option, can be
from 0 to 999 minutes long. A programmed start time
can be any date within 30 days of the sampler’s current
date.
• Delay-to-First-Group Sample. The delay-to-first-group
sample is the period between the time the sampler is
enabled (not the start time) and the time first sample
volume is delivered to the first bottle group. Your entry
in Display #15 determines the Delay to First Group.
• Delay-to-Second-Group Samples. The
delay-to-second-group sample is the period between the
time the sampler is enabled (not the start time) and the
time the first sample volume is delivered to the second
bottle group. This delay is determined by your entry in
Display #17. You can enter a delay-to-second-group
sample only for time-paced second bottle groups.
• DURING/AFTER. This delay affects flow-paced second
bottle groups. Like the delay to second group sample,
the during/after delay determines when the sampler
begins sampling for the second bottle group. Because the
flow-paced sampling can consume unpredictable
amounts of time, the storm routine must use two specific
events to mark the beginning of the flow intervals.
These events are the time the sampler is enabled and
the time the sampler completes the first bottle group.
If you want the sampler to fill the second bottle group
during the first bottle group, select “DURING” from
Display #16. The sampler will begin counting flow
pulses when the sampler is enabled. (If the sampler is
enabled at the start time, the sampler starts counting
flow pulses at the start time.)
If you want the sampler to fill the second group after the
sampler fills the first bottle group, select “AFTER.” The
sampler will begin counting flow pulses after it fills the
first bottle group.
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Figure 3-18 Start Time Diagram for STORM Routines
Note
Before programming a sampler in the extended programming
mode, the sampler must be configured for extended programming. Refer to the section Programming Mode for a discussion
of the Programming Mode configure option. Example Checking
the Configure Option Settings shows the steps required to
access the Programming Mode option.
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3.14 Foreign Languages
and Metric Units of
Measure
The 3700R Sampler provides displays in French, Spanish, and
German. Additionally, the software supports entries in metric
units of measure. Metric units include volumes in milliliters,
suction-head and suction-line length in decimeters, and
suction-line ID in millimeters.
Samplers using French, Spanish, and German language displays
support metric units for suction-line and suction-head measurements. Samplers with English displays support either English or
metric units for suction-line and suction-head measurements.
(Always enter sample volumes in milliliters).
To program the sampler for foreign language displays, begin by
placing the sampler in standby. Then, be sure the sampler is configured for extended programming. Access the language programming sequence by pressing the STOP key five times. The
standby display will be replaced by the input display illustrated
below.
[English, German,
Spanish, French]
Select the preferred language from this display. If you select
French, Spanish, or German, the sampler will automatically
convert English units of measure to metric units and return to
standby. If you select English, a second input display will appear.
Select the units from this display. After you’ve made the
selection, the sampler will convert the units of measure as
required and return to standby.
[U.S., Metric]
Units
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3.15 Programming
Examples
The examples throughout this section demonstrate the steps
used to program the sampler for several different sampling routines in the extended programming mode. Each programming
example concludes with the run state displays that appear for
that routine.
Example Time-Paced Sampling: Uniform Intervals shows how to
program the sampler to take time-paced samples at uniform time
intervals of 30 minutes starting at 8:00 a.m. tomorrow, placing
one 500 ml sample in each bottle.
Example: Time-Paced Sampling: Uniform Intervals
1. Press ENTER/PROGRAM to access the interactive state.
. . . STANDBY . . .
10:34:50
19-JUN-04
2. Access the program sequence by selecting “PROGRAM”.
[PROGRAM, NONUNIFORM
TIME INTERVALS]
3. Select “TIME”.
[TIME, FLOW STORM]
PACED SAMPLING
4. Select “UNIFORM”.
[UNIFORM, NONUNIFORM]
TIME INTERVALS
5. Enter “0” to set the hours at zero. Press ENTER/PROGRAM to store the number “0” and move to the minutes entry.
SAMPLE EVERY
0 HOURS, 10 MINUTES
6. Enter “30” to set the minutes entry to 30.
SAMPLE EVERY
0 HOURS, 30 MINUTES
7. Enter “1” to set the number of bottles per sample event to 1.
1 BOTTLES PER
SAMPLE EVENT (1-24)
8. Select “SAMPLES”.
CHANGE BOTTLES BASED
ON [TIME, SAMPLES}
9. Enter “1” to set the number of samples per bottle to 1.
CHANGE BOTTLES EVERY
1 SAMPLES (1-8)
10. Enter “500” to set the sample volume at 500 ml.
SAMPLE VOLUMES OF
500 ml (10-1000)
11. Select “YES”.
ENTER START TIME
[YES, NO]
12. Enter the start time and date: 8:00 tomorrow morning.
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Example: Time-Paced Sampling: Uniform Intervals (Continued)
TAKE FIRST SAMPLE AT
8:00
20-06
JUN
After this message displays briefly, the sampler will automatically return to the standby state.
PROGRAMMING SEQUENCE
COMPLETE
13. When the sampler is properly installed, press the START SAMPLING key to run the program.
. . . STANDBY . . .
10:37:23 19-JUN-04
14. To start the sampling routine with the first bottle, accept the blinking “1” by pressing the ENTER/PROGRAM key. If
you want to start the routine with another bottle, enter the starting bottle number here.
BOTTLE 1
8:00
10:38:07
AT
This display appears as the sampler counts down the time remaining to the start time. The first line reports the bottle
which will receive the next sample volume. The second line reports the start time at the left and the current time on the
right.
BOTTLE 1
8:00
10:38:07
AT
When start time occurs, the sampler will take the first sample. Which will begins with a pre-sample purge. During the
purge, the display indicates the bottle number which receives the sample volume.
BOTTLE 1
As soon as the pump runs forward to deliver the sample volume, the message on the second line appears and
remains through the post-sample purge.
BOTTLE 1
PUMPING 500 ml
This display appears when the post-sample purge from the previous sample is completed. It indicates the bottle
number which is to receive the sample at the upcoming sample event. The second line displays the scheduled time for
the next event on the left. The current time is displayed on the right.
AT
BOTTLE 2
8:30 8:01:11
The cycle of displays is repeated for each bottle until the sampling routine is done.
↓
↓
When the routine is completed, this message appears. It reports the status of the routine (‘DONE”), the total number
of sample events, and the current time and date.
DONE. . .
8:10:35
24 SAMPLES
21-JUN-04
Example Time-Paced Multiplexed (samples-per-bottle) Sampling
shows how to program the sampler to take time-paced samples at
uniform time intervals of 15 minutes. At each sample event, one
bottle will receive a sample volume of 75 ml. The bottles are to be
switched every hour so that four sample volumes have been
deposited into each bottle. The sampling routine will start
according to the programmed start-time delay set in the Start
Time Delay configure option.
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Example: Time-Paced Multiplexed (samples-per-bottle) Sampling
1. Press ENTER/PROGRAM to access the interactive state.
. . . STANDBY . . .
5:37:23
19-JUN-04
2. Access the program sequence by selecting “PROGRAM.”.
[PROGRAM, CONFIGURE]
SAMPLER
3. Select “TIME.”
[TIME, FLOW, STORM]
PACED SAMPLING
4. Select “UNIFORM.”
[UNIFORM, NONUNIFORM]
TIME INTERVALS
5. Enter “0” to set the hours at zero. Press ENTER/PROGRAM to store the number “0” and move to the minutes entry.
SAMPLE EVERY
0 HOURS,30 MINUTES
6. Enter “15” to set the minutes entry to 15.
SAMPLE EVERY
0 HOURS,15 MINUTES
7. Enter “1” to set the number of bottles per sample event to 1.
1 BOTTLES PER
SAMPLE EVENT (1 - 24)
8. Select “SAMPLES.” We recommend bottle set changes be based on samples for time-paced sampling routines.
CHANGE BOTTLES BASED
ON [TIME, SAMPLES]
9. Enter “4” to set the number of samples per bottle to 4.
CHANGE BOTTLES EVERY
4 SAMPLES (1 - 8)
10. Enter “75” to set the sample volume at 75 ml.
SAMPLE VOLUMES OF
(10 - 250)
75 ml
11. Select “NO.”
ENTER START TIME?
[YES, NO]
After this message is displayed briefly, the sampler will automatically return to the standby state.
PROGRAMMING SEQUENCE
COMPLETE
12. After the sampler is properly installed, press the START SAMPLING key to run the program.
. . . STANDBY . . .
5:39:25
20-JUN-04
13. To start the sampling routine with the first bottle, accept the blinking “1” by pressing the ENTER/PROGRAM key. If
you want to start the routine with another bottle, enter the starting bottle number here.
START SAMPLING
AT BOTTLE 1 (1-24)
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Example: Time-Paced Multiplexed (samples-per-bottle) Sampling
This display is used with samples-per-bottle multiplexing. The first line indicate the number of the upcoming sample
and the total number of samples each bottle is to receive. It also indicates the current bottle number. Thus, this
display indicates that the upcoming sample is the first of four samples and bottle one is to receive the next sample.
The second line indicates the scheduled time of the sample. The current time is shown in the right corner as the
sampler counts down to the next sample event time.
1 OF 4,
AT 5:41
BOTTLE 1
5:39:33
When the scheduled sample event time arrives, the second line will disappear while the sampler completes the
pre-sample purge.
1
OF
4,
BOTTLE 1
When the pump begins to pump forward to deliver the sample, the second line will indicate the sample delivery by
displaying the word “PUMPING” and the sample volume being delivered. The message remains during the sample
delivery and post-sample purge.
1
OF 4, BOTTLE 1
PUMPING 75 ml
When the sampling cycle is completed, the display will indicate the upcoming sample, shown here. This display
indicates that the upcoming sample is the second of four samples; the current sample bottle is bottle 1. The sample
event is scheduled for 6:15. The current time is just after 6:00.
2 OF 4,
AT 6:15
BOTTLE 1
6:00:26
The next displays illustrated here show the displays as the sample volumes are deposited in bottle 1.
2 OF
4,
BOTTLE 1
2 OF 4, BOTTLE 1
PUMPING 75 ml
3 OF 4,
AT 6:30
BOTTLE 1
6:15:27
↓
↓
When the final sample has been deposited in the first bottle, the display changes to indicate the new sample bottle.
This display indicates that the upcoming sample event will place the first of four sample volumes in bottle 2 at 7:00.
1 OF 4,
AT 7:00
BOTTLE 2
6:45:25
This display appears as the pump delivers the first sample to bottle 2.
1
OF
4,
BOTTLE 2
The cycle of displays is repeated for each bottle until the sampling routine is done.
↓
↓
When the routine is completed, this message appears. It reports the status of the routine (“DONE”), the total number
of sample events, and the current time and date.
DONE . . . 96 SAMPLES
6:10:35
21-JUN-04
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Example Extended Flow-Paced Multiplexed (bottles-per-sample)
Sampling shows how to program the sampler to take samples at
intervals of 10 pulses. Samples will be multiplexed: 800 ml
sample volumes will be placed into two bottles at each sample
event. Each bottle is to receive one sample volume. The routine
will use the start time delay.
Example: Extended Flow-Paced Multiplexed (bottles-per-sample)
Sampling
1. Press ENTER/PROGRAM to access the interactive state.
. . . STANDBY . . .
10:35:23
19-JUN-04
2. Access the program sequence by selecting “PROGRAM.”
[PROGRAM, CONFIGURE]
SAMPLER
3. Select “FLOW.”
[TIME, FLOW, STORM]
PACED SAMPLING
4. Enter “10” to set the pulse interval to 10 pulses.
SAMPLE EVERY
10 PULSES (1 - 9999)
5. Enter “2” to set the number of bottles per sample event to 2.
2 BOTTLES PER
SAMPLE EVENT (1 - 24)
6. Select “SAMPLES/BTL.”
CHANGE SETS BASED
ON [TIME, SAMPLES/BTL]
7. Enter “1” to set the number of samples per bottle to 1.
CHANGE SETS EVERY
8)
1 SAMPLES (1 8. Enter “800” to set the sample volume at 800 ml.
SAMPLE VOLUMES OF
(10 - 1000)
800 ml
9. Select “NO.”
ENTER START TIME?
[YES, NO]
After this message is displayed briefly, the sampler will automatically return to the standby state.
PROGRAMMING SEQUENCE
COMPLETE
10. When the sampler is installed, press the START SAMPLING key to run the program.
. . . STANDBY . . .
10:37:23
19-JUN-04
11. To start the sampling routine with the first bottle, accept the blinking “1” by pressing the ENTER/PROGRAM key. If
you want to start the routine with another bottle, enter the starting bottle number here.
START SAMPLING
AT BOTTLE 1 (1-23)
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Example: Extended Flow-Paced Multiplexed (bottles-per-sample)
Sampling (Continued)
This display appears after you press the start sampling key to start the routine. It reports the scheduled start time on
the first line. The second line reports the current time and date.
START FLOW COUNT AT
10:37:23
20-06
JUN
When the scheduled start time arrives, the sampler will begin to count flow pulses. This display indicates the bottles
which will receive sample volumes at the upcoming sample event. (If the bottle set consisted of four bottles, the first
line of the display would read, “BOTTLES 1 - 4.”) The number of flow pulses remaining to the sample event is displayed on the second line.
BOTTLES 1- 2
AFTER
10 PULSES
The second line of the display changes as each flow pulse is received.
BOTTLES 1- 2
AFTER
9 PULSES
↓
↓
This display shows one pulse remaining until the sample event.
BOTTLES 1- 2
AFTER
1 PULSES
When the tenth pulse is received, the display will show the current bottle number, only.
BOTTLE
1
When the pump begins to run forward to deliver the sample volume, the second line appears. After the pump
completes the sample delivery, it reverses to purge the liquid from the pump tube past the liquid detector. The suction
line is not completely purged; instead, the liquid is pumped just past the liquid detector. At the end of the pump tube
purge, the distributor moves to the next bottle of the set. The display remains unchanged until the distributor relocates
to the next bottle of the set.
BOTTLE 1
PUMPING 800 ml
As the distributor moves to the next bottle, the bottle number reported in the display changes to indicate the bottle
number. The message, “PUMPING 800 ml,” will remain on the display. When the distributor reaches the correct
position over the current bottle, the pump runs forward to deliver the sample volume. When the delivery is completed,
the pump reverses to complete the post-sample purge.
BOTTLE 2
PUMPING 800 ml
At the end of the post-sample purge, the display changes to indicate the bottle numbers of the next bottle set. The
display will change as it receives each flow pulse.
BOTTLES 3- 4
AFTER
10 PULSES
The cycle is repeated until the sampling routine is completed.
↓
↓
When the routine is complete, the display will indicate the status of the routine (“DONE”), the number of sample
events, and the current time and date.
DONE . . . 12 SAMPLES
6:10:35
21-JUN-04
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In Example Flow-Paced Sampling / Time-Based Bottle Sets,
samples are to be taken at intervals of 1,000 flow pulses.
Samples will be multiplexed by placing 100 ml sample volumes
into two bottles at each sample event. To avoid missing any
samples, the sampling routine starts immediately after you press
the start sampling key. To place the bottle set changes at the top
of the hour, the sampler will be allowed to take samples until
12:00, the time of the first bottle set change. After the first
change, bottle sets will change every two hours.
NOTE: The number of samples in each bottle set will vary as the
flow rate varies. If at least one sample is desired in each bottle,
the sampler should be directed to take a sample at the start and
switch times. See the section Flow Mode Sampling, which
describes this option.
Example: Flow-Paced Sampling / Time-Based Bottle Sets
1. Press ENTER/PROGRAM to access the interactive state.
. . . STANDBY . . .
10:34:50
19-JUN-04
2. Access the program sequence by selecting “PROGRAM.”
[PROGRAM, CONFIGURE]
SAMPLER
3. Select “FLOW.”
[TIME, FLOW, STORM]
PACED SAMPLING
4. Enter “1000” to set the pulse interval to 1000 pulses.
SAMPLE EVERY
1000 PULSES (1 - 9999)
5. Enter “2” to set the bottles per sample event to 2. Each bottle set will consist of two bottles.
2 BOTTLES PER
SAMPLE EVENT (1 - 24)
6. Select “TIME.”
CHANGE SETS BASED
ON [TIME, SAMPLES/BTL]
7. Enter “2” to switch bottle sets every two hours. Press the ENTER/PROGRAM key to advance to the minutes entry.
CHANGE SETS EVERY
2 HOURS 0 MINUTES
8. Press ENTER/PROGRAM to accept an entry of “0” for minutes.
CHANGE SETS EVERY
2 HOURS 0 MINUTES
9. Enter “100” to set the sample volume at 100 ml.
SAMPLE VOLUMES OF
EACH (10 - 330)
100 ml
10. Select “NO.”
ENTER START TIME?
[YES, NO]
11. Select “YES.”
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Example: Flow-Paced Sampling / Time-Based Bottle Sets (Continued)
ENTER FIRST SWITCH
TIME? [YES, NO]
12. Enter the time at which you want the sampler to move to the second bottle set. At the first bottle set change,
12:00, the bottle set changes will be placed on schedule.
FIRST SET CHANGE AT
19-06 JUN
12:00
After this message is displayed briefly, the sampler will automatically return to the standby state.
PROGRAMMING SEQUENCE
COMPLETE
13. When the sampler has been correctly installed, press the START SAMPLING key to run the program.
. . . STANDBY . . .
10:37:23
19-JUN-04
14. To start the sampling routine with the first bottle, accept the blinking “1” by pressing the ENTER/PROGRAM key. If
you want to start the routine with another bottle, enter the starting bottle number here.
START SAMPLING
AT BOTTLE 1 (1-23)
This display appears after you press the START SAMPLING key to start the routine. The scheduled start time is
reported on the first line. The second line reports the current time and date.
START FLOW COUNT AT
10:39 19-06
JUN
This display alternates with the display illustrated below. The first line indicates the sample event number and the
bottle numbers of the current bottle set. The second line is used to indicate the number of flow pulses remaining until
the sample event is initiated.
SAMPLE 1,
AFTER
BTLS 1- 2
1000 PULSES
This display indicates the time and date of the next bottle set change.
NEXT SET CHANGE
AT 12:00
19-JUN
This display appears when the sample event is initiated. It reports the sample number and the receiving bottle
number on the first line during the pre-sample purge.
SAMPLE 1,
BOTTLE 1
When the pump begins to run forward to deliver the sample, the second line appears; it reports the sample volume.
SAMPLE 1, BOTTLE 1
PUMPING 100 ml
When the sample delivery has been completed for the first bottle of the set, the distributor moves to the second
bottle.
SAMPLE 1, BOTTLE 2
PUMPING 100 ml
After the bottles of the set have each received a sample volume, the alternating pair of displays reappear.
SAMPLE 2, BTLS 1- 2
AFTER
1000 PULSES
NEXT SET CHANGE
AT 12:00
19-JUN
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Example: Flow-Paced Sampling / Time-Based Bottle Sets (Continued)
When the next sample event occurs, this display reports the current sample event and the current bottle. When the
sample delivery is completed, the distributor will move to the next bottle of the set and the following display will
appear.
SAMPLE 2,
BOTTLE 1
SAMPLE 2, BOTTLE 1
PUMPING 100 ml
This cycle will be repeated, as samples are deposited in the bottles of the set. The sample number will increase with
each sample deposited until the set change.
SAMPLE 2, BOTTLE 2
PUMPING 100 ml
When the bottle sets are changed, the sample event number is reset to one. The bottle numbers of the new current
set is reported.
SAMPLE 1,
AFTER
BTLS 3- 4
1000 PULSES
SAMPLE 1,
AFTER
BTLS 3- 4
1000 PULSES
The cycle of displays is repeated for each bottle until the sampling routine is done.
↓
↓
When the routine is completed, this message appears. It reports the status of the routine (“DONE”), the total number
of sample events, and the current time and date.
DONE . . . 96 SAMPLES
6:10:35
21-JUN-04
Example Time-Paced Samples at Nonuniform Intervals shows
how to program the sampler to take time-paced samples at nonuniform time intervals. This example assumes the sampler is
configured for extended programming and that it connected to a
Liquid Level Actuator. The actuator will inhibit the sampler
until the liquid level rises to contact the actuator probe.
The sampler is to take 24 samples: the first samples are to occur
at 10-minute intervals for an hour, the next samples at
20-minute intervals for an hour, and the remaining samples at
30-minute intervals. One 500 ml sample is to be placed in each
bottle. Although this example assumes that nonuniform times
are being used with the actuator, uniform time intervals or flow
intervals can be used with the actuator as well.
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Example: Time-Paced Samples at Nonuniform Intervals
1. Press ENTER/PROGRAM to access the interactive state.
. . . STANDBY . . .
10:34:50 19-JUN-04
2. Access the program sequence by selecting “PROGRAM.”
[PROGRAM, CONFIGURE]
SAMPLER
3. Select “TIME.”
TIME, FLOW, STORM]
PACED SAMPLING
4. Select “NONUNIFORM.”
[UNIFORM, NONUNIFORM]
TIME INTERVALS
5. Select “YES” to modify the sequence of nonuniform time entries.
MODIFY SEQUENCE?
[YES, NO]
6. Enter the total number of samples: “24.” This entry should always include the sample taken at the start time.
TAKE 24 SAMPLES
(1-999)
7. Enter the number of samples to occur at the first interval. The sampler is to take samples at 10-minute intervals
for an hour or 6 samples in the first hour. Since the first sample is taken at the start time, the remaining five
samples will occur at the 10-minute interval.
QUANTITY AT INTERVAL
1. 5 AT 10 MINUTES
8. When you have completed the first entries, the display will “roll” to move the first interval entries to the first line,
and add the second line entries for the next series of samples and intervals. Enter the next entries: “3” samples
at“20” minutes.
1.
2.
5 AT 10 MINUTES
3 AT 20 MINUTES
9. Enter the third set of samples and intervals, “15” samples at “30” minutes.
2. 3 AT 20 MINUTES
3. 15 AT 30 MINUTES
10. Enter “1” to set the number of bottles per sample event to 1.
1 BOTTLES PER
SAMPLE EVENT (1 - 24)
11. Select “SAMPLES.”
CHANGE BOTTLES BASED
ON [TIME, SAMPLES]
12. Enter “1” to set the number of samples per bottle to 1.
CHANGE BOTTLES EVERY
1 SAMPLES (1 - 50)
13. Enter “500” to set the sample volume at 500 ml.
SAMPLE VOLUMES OF
(10 - 1000)
500 ml
14. Select “NO.”
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Example: Time-Paced Samples at Nonuniform Intervals (Continued)
ENTER START TIME?
[YES, NO]
After this message is displayed briefly, the sampler will automatically return to the standby state.
PROGRAMMING SEQUENCE
COMPLETE
15. Press the START SAMPLING key to run the program.
. . . STANDBY . . .
10:37:23
19-JUN-04
16. To start the sampling routine with the first bottle, accept the blinking “1” by pressing the ENTER/PROGRAM key. If
you want to start the routine with another bottle, enter the starting bottle number here.
START SAMPLING
BOTTLE 1 (1-24)
This display appears while the Actuator is inhibiting the sampler. The second line indicates the current time and date.
SAMPLER INHIBITED!
10:35
20-JUN-04
This display appears when the sampler becomes enabled and counts down the time remaining to the start time. The
first line reports the bottle which will receive the next sample volume. The second line reports the start time at the left
and the current time on the right.
BOTTLE 1
AT 11:26
11:25:47
When the start time occurs, the sampler will take the first sample. The sample event cycle begins with a pre-sample
purge. During the purge, the display indicates the receiving bottle number.
BOTTLE 1
As soon as the pump runs forward to deliver the sample volume, the message on the second line appears. This
message remains through the post-sample purge.
BOTTLE 1
PUMPING 500 ml
This display appears when the post-sample purge from the previous sample event is completed. It indicates the bottle
number which is to receive the sample at the upcoming sample event. The second line displays the scheduled time
for the next event on the left; the current time is displayed on the right.
BOTTLE 2
AT 11:36:
11:26:11
The cycle of displays is repeated for each bottle until the sampling routine is done.
↓
↓
When the routine is completed, this message appears. It reports the status of the routine, “DONE;” the total number
of sample events; and the current time and date.
DONE . . . 24 SAMPLES
8:10:35
21-JUN-04
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Nonuniform times can be entered in either the method shown in
Example Time-Paced Samples at Nonuniform Intervals, or by
specifying a clock time and date for each sample. On the following page, Example Time-Paced Samples at Nonuniform Clock
Times shows the displays used to enter the clock times. The type
of display, clock time or minutes, used in the program sequence is
controlled by the settings in the Nonuniform Times configure
option; you must specify either clock time or minutes in that configure option.
Example: Time-Paced Samples at Nonuniform Clock Times
1. Enter the time and date for the first sample event. Times and dates are entered on the second line of the display.
1.
TAKE SAMPLES AT
06 :00
19-JUN
2. Enter the time and date for the second sample event. The controller will guess a time at the hour succeeding the
previously entered time.
1.
2.
06:00
07 :00
19-JUN
19-JUN
3. Enter the time and date for the third sample event.
2.
3.
06:30
07 :00
19-JUN
19-JUN
4. Continue to enter times and dates for each sample event. After all sample event times have been entered, the
sample distribution section of the programing sequence will appear.
↓
↓
Example Sampling with Stops and Resumes shows how to
program the sampler to take time-paced samples at uniform time
intervals of 15 minutes starting at 6:00 a.m. on the following day.
One 500 ml sample is to be placed in each bottle. The sampling is
to continue from 6:00 a.m. until 8:00 a.m.. The sampling will
resume again at 11:00 a.m. and continue until 1:30 p.m.. It will
pause until 4:00 p.m. and continue again until 6:00 p.m.. When
the sampling stops at 6:00 p.m., fewer than 24 samples may have
been taken. Note that the Sampling Stop and Resumes configure
option has settings that allow you to take a sample at the stop
and resume times. See the section Sampling Stop/Resume.
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Example: Sampling with Stops and Resumes
1. Press ENTER/PROGRAM to access the interactive state.
. . . STANDBY . . .
10:34:50 19-JUN-04
2. Access the program sequence by selecting “PROGRAM.”
[PROGRAM, CONFIGURE]
SAMPLER
3. Select “TIME.”
[TIME, FLOW, STORM]
PACED SAMPLING
4. Select “UNIFORM.”
[UNIFORM, NONUNIFORM]
TIME INTERVALS
5. Enter “0” to set the hours at zero. Press ENTER/PROGRAM to store the number “0” and move to the minutes entry.
SAMPLE EVERY
0 HOURS,
10 MINUTES
6. Enter “15” to set the minutes entry to 15.
SAMPLE EVERY
0 HOURS, 15 MINUTES
7. Enter “1” to set the number of bottles per sample event to 1.
1 BOTTLES PER
SAMPLE EVENT (1 - 24)
8. Select “SAMPLES.”
CHANGE BOTTLES BASED
ON [TIME, SAMPLES/BTL]
9. Enter “1” to set the number of samples per bottle to 1.
CHANGE BOTTLES EVERY
1 SAMPLES (1 - 8)
10. Enter “500” to set the sample volume at 500 ml.
SAMPLE VOLUMES OF
(10 - 1000)
500 ml
11. Select “YES.”
ENTER START TIME?
[YES, NO]
12. Enter the start time and date of the sampling program: 6:00 a.m. tomorrow.
TAKE FIRST SAMPLE AT
06:00
19-JUN
13. Enter “5.” There are three stop times and two resume times.
5 STOP or RESUME
TIMES (0-24)
14. Enter the time and date of the first stop time: 8:00 a.m..
STOP SAMPLING AT
1. 08:00 19-JUN
15. Enter the time and date the program should resume: 11:00 a.m..
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Example: Sampling with Stops and Resumes (Continued)
RESUME SAMPLING AT
1. 11:00 19-JUN
16. Enter the time and date of the second stop time: 1:30 p.m. or 13:30. You must enter the times in military time.
STOP SAMPLING AT
2. 13:30 19-JUN
17. Enter the time and date the program should resume: 4:00 p.m. or 16:00 in military time.
STOP SAMPLING AT
2. 13:30 19-JUN
18. Enter the time and date the program should resume: 4:00 p.m. or 16:00 in military time.
STOP SAMPLING AT
3. 18:00 19-JUN
After this message displays briefly, the sampler will automatically return to the standby state.
PROGRAMMING SEQUENCE
COMPLETE
19. Press the START SAMPLING key to run the program.
. . . STANDBY . . .
10:37:23
19-JUN-04
20. To start the sampling routine with the first bottle, accept the blinking “1” by pressing the ENTER/PROGRAM key. If
you want to start the routine with another bottle, enter the starting bottle number here.
START SAMPLING
BOTTLE 1 (1-24)
This display appears as the sampler counts down the time remaining to the start time. The first line reports the bottle
which will receive the next sample volume. The second line reports the start time at the left and the current time on
the right.
BOTTLE 1
AT 6:00
10:38:07
When the start time arrives, the sampler will take the first sample. The sample event cycle begins with a pre-sample
purge. During the purge, the display indicates the bottle number which will receive the sample volume.
BOTTLE 1
As soon as the pump runs forward to deliver the sample volume, the message on the second line appears. This
message remains through the post-sample purge.
BOTTLE 1
PUMPING 500 ml
This display appears when the post-sample purge from the previous sample event is completed. It indicates the bottle
number which is to receive the sample at the upcoming sample event. The second line displays the scheduled time
for the next event on the left. The current time is displayed on the right.
BOTTLE 2
AT 6:15
8:01:11
The cycle of displays is repeated for each bottle until the sampling routine is done.
↓
↓
When the routine is completed, this message appears. It reports the status of the routine (“DONE”), the total number
of sample events, and the current time and date.
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Example: Sampling with Stops and Resumes (Continued)
DONE . . . 18 SAMPLES
18:10:35
21-JUN-04
Example Storm Sampling illustrates how to program a 24-bottle
sampler to allocate six bottles to the first bottle group. The
remaining 18 bottles, allocated to the second bottle group, will be
used for flow-weighted samples. The sampler delays the first
group 25 minutes after it is enabled.
For the first bottle group, the sampler will take two samples with
a 5-minute interval between each sample event. At the first
sample event, bottles 1 through 3 will each receive 900 ml each
(bottles-per-sample multiplexing). At the second timed event,
bottles 4 through 6 will receive 900 ml each.
The sampler will fill the second bottle group with flow-paced
samples during the same time as the second bottle group. At each
sample event, a single bottle in the second bottle group will
receive a 400 ml sample. Each bottle will receive samples from
two sample events (samples-per-bottle multiplexing).
Example: Storm Sampling
1. Press ENTER/PROGRAM to access the interactive state
. . . STANDBY . . .
10:34:50 12-JUN-04
2. Access the program sequence by selecting “PROGRAM.”
[PROGRAM, CONFIGURE]
SAMPLER
Display 1
[TIME, FLOW, STORM]
PACED SAMPLING
Display 12
3. Select “STORM.
After displaying this message briefly, the sampler will automatically advance to the next display.
TIME MODE
FIRST BOTTLE GROUP
4. Enter “25” to delay the first group sample 25 minutes. (Acceptable range of values: 0 to 999.)
25 MINUTE DELAY TO
Display 15
FIRST GROUP SAMPLE
5. Enter “2” to take two timed samples.
TAKE 2 TIMED
EVENTS ( 1 - 50 )
Display 23
6. Enter “5” to set the time interval between samples to five minutes.
SAMPLE INTERVALS OF
5 MINUTES (1 - 999)
Display 24
7. Enter the number of bottles per sample event: “3.”
3 BOTTLES PER
SAMPLE EVENT (1-23)
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Example: Storm Sampling (Continued)
8. Enter “1” to place one sample in each bottle.
1 SAMPLES PER
BOTTLE (1 - 2)
Display 31
9. Enter the sample volume of “900” ml.
SAMPLE VOLUMES OF
(10 - 1000)
Display 50
900 ml
The sampler will display this message before automatically advancing to the next display.
18 BOTTLES, 18000 ml
AVAILABLE
10. Select “FLOW.”
[TIME, FLOW]
SECOND BOTTLE GROUP
Display 14
11. Select “DURING” to fill the second bottle group at the same time as the first bottle group.
[DURING, AFTER]
TIME MODE
Display 16
12. Enter “5” as the flow-pulse interval. The sampler will take a sample every fifth flow pulse.
5
SAMPLE EVERY
PULSES (1-9999)
Display 22
13. This display requires two entries. Enter “2” hours and “0” to set the maximum amount of time between flow-paced
sample events.
MAX FLOW INTERVAL OF
2 HOURS
0 MINUTES
Display 110
14. Enter the number of bottles filled at each sample event: “1.”
1 BOTTLES PER
SAMPLE EVENT (1-22)
Display 30
15. Enter “2” to set the number of samples delivered to each bottle.
2 SAMPLES PER
BOTTLE (1 - 50)
Display 31
SAMPLE VOLUMES OF
(10 - 990)
Display 50
16. Enter the sample volume of “400” ml.
400 ml
17. Select “YES” to enter a start time in the following step.
ENTER START TIME:
[YES, NO]
Display 90
18. This display requires two entries. Enter a time of “06:00” and a date of “20-06” to start the storm routine at 6:00
a.m. on June 20.
STORM ENABLED AFTER
06:00
20-09
Display 93
After displaying this message, the sampler will automatically return to the standby state.
PROGRAMMING SEQUENCE
COMPLETE . .
19. This display appears when you press START SAMPLING.
START STORM PROGRAM
AT 6:00
5:33:07
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Example: Storm Sampling (Continued)
The displays shown in step 22 alternate as the sampler’s clock approaches the start time. The first line reports the
bottles which will receive the first sample volumes for each bottle group. The second line reports the start time at the
left and the current time on the right.
BOTTLE 1
AT 6:25
5:38:07
1 of 2, BOTTLE 3
AFTER
5 PULSES
As soon as the pump runs forward to deliver the sample volume, the message on the second line appears. This
message remains through the post-sample purge.
BOTTLE 1
PUMPING 900 ml
The sampler will continue to alternate displays until the routine terminates.
BOTTLE 2
AT 6:30
6:26:1
1 of 2, BOTTLE 3
AFTER
5 PULSES
The cycle of displays is repeated for each bottle until the sampling routine is done.
↓
↓
When the routine is completed, this message appears. It reports the status of the routine (“DONE”), the total number
of sample events, and the current time and date.
DONE . . . 42 SAMPLES
18:10:35
25-JUN-04
3.16 Standby State
A sampler in the standby state is waiting for your instructions.
From standby, you can start or resume a sampling program,
access the program or configure sequences, take manual
samples, and use the display status key to review program settings or the results of a sampling routine.
A sampler in standby uses a number of displays to communicate
its status. Some of these displays are associated with the
function of a specific key; other displays are used to notify you
that a sampling program is done, halted, or has encountered a
problem. The standby state displays and valid keys are discussed
in the following sections.
Standby Display – When you first turn the sampler on, the
sampler “wakes up” in the standby state. The standby display,
shown below, simply informs you that the sampler is in standby
and reports the current time and date.
. . . STANDBY . . .
10:37:23
16-JUN-04
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At this point, the following keys are operable: ON / OFF, PUMP
REVERSE , PUMP FORWARD , START SAMPLING, ENTER / PROGRAM ,
MANUAL SAMPLE, NEXT BOTTLE, and DISPLAY STATUS.
Program Halted – A sampling program can be halted with
either the STOP or EXIT PROGRAM key; if this occurs, the sampler
will display the halt message shown below. If you halt the
program to take a manual sample or to change a setting in the
program or configure sequence, the sampler will return to
standby. If this is the case, you will not be able to use the RESUME
SAMPLING key.
. . . PROGRAM HALTED . . .
10:37:33
19-JUN-04
3.16.1 Operable Keys in
Standby State
Keypad operations valid in Standby state are discussed below.
For additional keypad descriptions, see Keypad Description on
Page 3-14.
On/off – When in the standby state, this key simply shuts the
sampler off.
Pump Forward and Pump Reverse – While in the standby
state, pressing the PUMP FORWARD or PUMP REVERSE key will
cause the pump to run continuously in the chosen direction. The
pump will run until you press the STOP key. See Page 3-14 for
more details.
Manual Sample – You can take manual samples in standby by
pressing the MANUAL SAMPLE key. After you press the MANUAL
SAMPLE key, the sampler will deliver the programmed sample
volume to the bottle currently under the distributor. A manual
sample delivers the sample volume currently entered as a programmed setting, and includes the pre-sample and post-sample
purges. It will also include any programmed rinses and retries.
The sampling process can be stopped with the STOP key at any
time.
While the sample is being delivered, the sampler displays a
message similar to that illustrated below. The second line will
not appear until the pump begins to pump forward to deliver the
sample. The display will revert to standby after the manual
sample has been delivered.
. . . MANUAL SAMPLE . . .
PUMPING 200 ml
Next Bottle - Pressing the NEXT BOTTLE key will cause the distributor to move to the next bottle. If the distributor is positioned
over the last bottle, it will move to bottle position 1. The sampler
will display the distributor’s location as illustrated below. After a
short time, the display will revert to standby.
NOW ON BOTTLE
2
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Start Sampling – Once you have programmed and configured
the sampler, use the START SAMPLING key to run the sampling
program. The first display you’ll see after pressing the START
SAMPLING key is illustrated below.
If you want to have the sampling program begin with a bottle
other than Bottle 1, enter the first bottle number here. If “1” is
acceptable, press the ENTER/PROGRAM key to place the sampler
into the run state. If you do not press a key within 60 seconds,
the sampler will automatically enter the run state and will begin
the sampling routine with Bottle 1.
START SAMPLING
AT BOTTLE 1 (1 - 24)
There are three instances where the sampler will not be able to
run the program immediately. These occur when the program
has been started after: 1) the programmed start time, 2) the first
switch time, and 3) one or more programmed stop times. The
sampler responds to these situations as discussed in Examples:
Program Started Later Than Programmed Start Time, Program
Started Later Than Programmed 1st Switch Time, and Program
Started Later Than Programmed Stop Time.
Resume Sampling – To resume the program, press the RESUME
SAMPLING key. When you press RESUME SAMPLING, the program
will resume at the point it was halted. The display must read
“PROGRAM HALTED” for the resume sampling key to be active.
If any samples were missed during the time the program was
halted, the sampler will inform you with the message illustrated
below. The sampler will initiate one sample event if it missed one
or more sample events.
2
SAMPLES WILL BE
SKIPPED
Example: Program Started Later Than Programmed Start Time
This display informs you of the expired start time. The sampler presents this display for a short time, then advance to
the next display.
PAST START TIME . . .
This display reports the number of samples that will be skipped if you do not change the start time; it appears only if
more than one sample event time has passed.
1
SAMPLES WILL BE
SKIPPED
1. Select “YES” if you want to change the start time. Select “NO” if missed samples are acceptable.
CHANGE START TIME?
[YES, NO]
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Example: Program Started Later Than Programmed Start Time
2. This display appears when you select “YES” in display #142 and a sample event is to occur at the start time.
Enter the new start time.
TAKE FIRST SAMPLE AT
12:30
19-JUN
Display 93
3. This display appears when you select “YES” in display #142 and no sample is to occur at the start time for a
flow-paced sampling routine. Enter the new start time.
START FLOW COUNT AT
12:30
19-JUN
Display 9
Example: Program Started Later Than Programmed 1st Switch Time
This display informs you of the expired switch time. The sampler presents this display for a short time, then advances
to the next display.
PAST SWITCH TIME . . .
1. Select “YES” to change the switch time. Select “NO” to continue the routine.
CHANGE SWITCH TIME?
[YES, NO]
Display 143
2. This display appears when you select “YES” in display #143 and the bottles-per-sample event is set at “1.” Enter
the new switch time.
FIRST BOTTLE CHANGE
AT 5:30
19-JUN
Display 46
3. This display appears when you select “YES” in display #143 and the bottles-per-sample event is set to a number
greater than one. Enter the new switch time.
FIRST SET CHANGE AT
5:30
19-JUN
Display 47
Example: Program Started Later Than Programmed Stop Time
This display informs you of the expired stop time. The sampler presents this display for a short time, then reverts to
standby.
PAST STOP TIME .. .
PLEASE REPROGRAM
You must access the program sequence to change the expired stop and resume times. Once you’ve made the
changes, start the routine again with the start sampling key.
. . . STANDBY . . .
10:22:34
21-JUN-04
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3.17 Displayed Selections
and Messages
Start Sampling – Once you have programmed and configured
the sampler, use the START SAMPLING key to run the sampling
program. There are two instances where the sampler will not be
able to run the program immediately. When the program has
been started after the programmed start time or after one or
more programmed stop times.
When you press the START SAMPLING key after a program has
been halted, the sampler will give you the choice between
resuming the program and starting the program by presenting
the display illustrated below.
[START, RESUME]
SAMPLING PROGRAM?
Select “START” to start the program from the beginning. Select
“RESUME” to resume the program at the point at which it
halted. If you do not make a selection from this display within 60
seconds, the sampler will automatically select the currently
blinking response. START will reinitialize the display-status
memory.
3.17.1 Additional Displays
There are three additional displays used in the run state:
Done – The sampler will inform you it has completed a program
by displaying the message illustrated below. This message is displayed until you press any key, at which time the display will
return to the standby message.
DONE . . .
10:37:33
24 SAMPLES
19-JUN-04
Problem Occurred – You will be informed that a problem was
encountered during the sampling routine with the message illustrated below. This display will alternate with the “DONE”
display at approximately 3-second intervals until you press any
key.
PROBLEM OCCURRED . . .
PRESS DISPLAY STATUS
Float/Weight Tripped – 3700 Samplers set up for composite
sample use the display below to notify you that the program finished because the liquid-level float (float cage) was tripped. This
display alternates with the “DONE” display at approximately
3-second intervals.
FLOAT/WEIGHT TRIPPED
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3.17.2 Display Status
You can access a summary of the current program settings and
the results of the most recent sampling routine with the DISPLAY
STATUS key. This key is valid in both the run and standby states.
The summary of the program settings consists of a number of
informational displays describing the settings. The results of the
sampling program include information about each sample event
and reports problems encountered during the program. This
information remains in memory until you start another program.
You can retrieve this information with a laptop computer
running Teledyne Isco’s Samplink software. Two reports are produced, containing the sampler ID, current status, program settings, and sampling results.
If a sampling routine is in progress when you press the DISPLAY
key, the sampling routine will be suspended. No samples
will be taken until you exit Display Status.
STATUS
If the pump count reaches the number entered for the Tubing
Life Warning setting, the Pump Tubing Warning will be displayed. An illustration of the warning is shown below.
WARNING: Replace
pump tubing!
Items Reported – The sampler tracks and reports the following
items:
• program start time and date
• sample volume
• source of each sample event
• cause of any missed samples
• start time of each sample event
• number of pump counts to liquid detection for each
event
• time the routine was completed
• sampler ID
• current time and date
• program settings
Each of these items is illustrated in Example Reviewing the Sampling Results.
When you press DISPLAY STATUS, the display shown below follows
the pump tubing warning. It allows you to review the program
settings or sampling results.
[REVIEW, PRINT]
PROGRAM INFORMATION
Display #148
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Review – Select “REVIEW” to review the program settings and
sampling results. The sampler will present the display shown
below. Use this display to leave the Display Status procedure or
to review the program settings or sampling results.
REVIEW PROGRAM [NO,
SETTINGS, RESULTS]
Display #150
No – Select “NO” to return to the previous operating state. If you
entered Display Status from standby, the standby message will
reappear. If you entered Display Status from the run state, the
sampling routine will resume.
Settings – Select “SETTINGS” to review the program settings.
Use the left arrow, right arrow, and the ENTER/PROGRAM keys to
move through the sampling settings. When the right arrow or the
ENTER / PROGRAM key is pressed at the last settings display, the
“REVIEW PROGRAM” display will reappear.
Results – Select “RESULTS” to review the results of the sampling routine. The first display reports the time and date the
sampling program started. Use the left and right arrows, and
ENTER/PROGRAM keys to move through the results. If the routine
was finished at the time you pressed the DISPLAY STATUS key, the
last display will report the time and date the routine ended.
Print – Select “PRINT” from Display #148 to send the current
status, program settings, or sampling results to the Teledyne Isco
Field Printer.
Note
The Teledyne Isco Field Printer has been discontinued and is
no longer sold by Teledyne Isco. These instructions are for
customers who still have Field Printers.
For information on the reports produced by the Field Printer,
refer to the Field Printer Instruction Manual.
When you select “PRINT,” Display #149 appears. Use this display
to select the settings or results report. (The sampler will
interrupt the reports to take a sample, if necessary.) Select “NO”
to return to standby.
PRINT PROGRAM [NO,
SETTINGS, RESULTS]
Display #149
The sampler will display one of two messages as it sends the data
to the printer. The first message informs you that the transmission is in progress. The second message is a warning
informing you that the sampler is unable to detect the printer. If
you see the warning message, check the cable connections
between the printer and the sampler.
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. . . PRINTING . . .
PROGRAM INFORMATION
PRINT ABORTED
NO PRINTER DETECTED!
Example: Reviewing the Sampling Results
1. Press display status to view the results of the sampling program.
DONE . . .
12:34:50
24 SAMPLES
20-JUN-04
2. Select “REVIEW.”
[REVIEW, PRINT] PROGRAM
INFORMATION
3. Select “RESULTS.”
REVIEW PROGRAM [NO,
SETTINGS, RESULTS]
4. This display reports the start time and date of the program. Press ENTER/PROGRAM to advance to the next display.
PROGRAM STARTED AT
5:30
19-JUN-04
5. This display reports the nominal sample volume. Press ENTER/PROGRAM to advance to the next display.
200 ml SAMPLES
6. This display reports the bottle number(s) for each sample event. It also reports the source of the event; in this
case, the sample was taken at the start time. Press ENTER/PROGRAM to advance to the next display.
SAMPLE: 1, BOTTLE: 1
SOURCE: START
7. This display reports the initiation time of the sample and the number of pump counts to liquid detection in the
sample delivery cycle. These values indicate changes in the sampling conditions – head changes, for example.
Press ENTER/PROGRAM to advance to the next display.
TIME: 5:30
COUNTS:
19-JUN-04
280
8. Press ENTER/PROGRAM to continue to review the information for the remaining sample events.
↓
↓
9. Press ENTER/PROGRAM to return to the “REVIEW PROGRAM” display.
PROGRAM FINISHED AT
12:00
20-JUN-04
10. Select “NO” to return to standby.
REVIEW PROGRAM [NO,
SETTINGS, RESULTS]
. . . STANDBY . . .
15:39:50
19-JUN-04
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3.17.3 Source of Sample
Event
The display illustrated in step 6 of Example Reviewing the Sampling Results shows the sample event number, the bottle(s) used,
and the source of the sample event. Source refers to the programmed or configured setting that initiated the sample event.
For example, the sampler will report “TIME” as a source if the
sample was taken as one of the program’s time-paced samples.
Nine sources are tracked and reported:
Time – The sample event was one of the program’s time-paced
samples.
Flow – The sample event was one of the program’s flow-paced
samples.
Start – The sample event was initiated at the program’s start
time.
Resume – The sample event was initiated to compensate for a
missed sample, which should have occurred while the sampler
was halted. If more than one sample event was missed, only one
sample will be taken.
Power – The sample event was initiated to compensate for a
missed sample which should have occurred while the sampler
was without power. If more than one sample was missed, only
one sample will be taken.
Enable – The sample event was initiated when the sampler
became enabled by a device connected to pin F of the flow meter
connector, generally a 4200 Series Flow Meter, a 4100 Series
Flow Logger, or Liquid Level Actuator. This source is also
reported when the sample was initiated at a programmed
resume time. Two different configure option settings control this
event: the Sample Upon Enable setting in the Enable Pin configure option and the Sample at Resume setting in the Sampling
Stop/Resume configure option.
Manual – The sample event was initiated with the manual
sample key and was counted as one of the programmed sample
events.
Time Switch – The sample event was initiated at the programmed switch time. This event is controlled by the Sample at
Time Switch setting in the Flow Mode Sampling configure
option. This option is available for flow-paced sampling only.
Disable – The sample event was initiated when the sampler
became disabled by a device connected to pin F of the flow meter
connector, generally a 4200 Series Flow Meter, a 4100 Series
Flow Logger, or a Liquid Level Actuator. This source is also
reported when the sample was taken at a programmed stop time.
Two different configure option settings control this event: the
Sample Upon Disable setting in the Enable Pin configure option
and the Sample at Stop setting in the Sampling Stop/Resume
configure option.
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3.17.4 Error Messages and
Missed Samples
The probable cause of any missed sample is reported after the
sample number/source display. A missed sample display is illustrated below.
SAMPLE MISSED:
NO LIQUID DETECTED!
Twelve causes are tracked and reported:
Pump ’STOP’ Key Hit! – The sampler was halted with the stop
key during the sample event.
Pump Jammed! – The sampler was unable to take the sample
because the pump jammed.
Started Too Late! – The sampling routine was started after the
programmed start time for the first sample. This message is
reported for all samples skipped because of an expired start time.
Program Halted! – The sampling routine was interrupted by
the STOP or EXIT PROGRAM key when the sample event was to occur.
Power Lost! – The sampler was unable to take the sample
because the sampler’s power source was disconnected.
Sampler Inhibited! – The sampler was prevented from taking
the sample by an inhibit signal sent to the sampler by a flow
meter or a liquid level actuator.
Distributor Jammed! – The sampler was unable to take the
sample because the distributor jammed.
Probable Overflow! – Overflow is determined by comparing
the bottle volume to the product of the sample volume and the
number of samples. If the product exceeds the bottle volume, the
sampler will not pump a sample for that sample event and will
record the “Probable Overflow!” message.
Float/Weight Tripped! – 3700 Samplers that are set up for
single-bottle compositing detect overflow with a liquid-level float
located at the mouth of the composite bottle. If the liquid level of
the bottle raises the float past the trip point, the sampler will
interrupt the sample event and record the “Float/Weight
Tripped” condition.
No More Liquid! – The sampler was unable to take the sample
because, in attempting to take the sample, the sampler pumped
all liquid from the flow stream.
No Liquid Detected! – The sampler was unable to take the
sample because no liquid was detected.
Sampler Shut 'Off'! – The sampler was unable to take the
sample because it was halted with the ON / OFF key during the
sample event.
3.18 Run State
A sampler in the run state is executing the sampler’s instructions
according to the settings you’ve entered in the program and configure sequences.
To start a sampling program and place the sampler into the run
state, press the start sampling key. While running the sampling
program, the sampler will present several displays that allow
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Section 3 Programming Guidelines
you to monitor the sampler’s progress. The displays are listed
with a brief explanation in Examples: Run State Displays:
Time-Paced Sampling, Run State Displays: Flow-Paced Sampling, and Run State Displays: Composite Sampling.
If you encounter a problem while running a sampling routine
that results in missed samples, an asterisk will appear in the
lower right corner of the display, as illustrated below.
AT
BOTTLE 11
6:00
5:42:33 *
There is one condition under which the sampler will enter the
run state after the start sampling key is pressed, but will not
begin the sampling program. If the sampler is interfaced with a
flow meter, liquid level actuator, or other equipment capable of
transmitting an inhibit signal, the sampler will not begin the
program until the inhibit signal is suspended. The sampler will
use the following display to inform you that the sampler is
inhibited.
SAMPLER INHIBITED!
10:32
19-JUN
Sampler Inhibited
Display
Example: Run State Displays: Time-Paced Sampling
Indicates the bottle number of the next sequential sample. The second line reports the scheduled sample event time
followed by the current time.
BOTTLE 5
AT 5:44
5:42:33
Indicates the scheduled time and receiving bottle numbers for an upcoming sample event. The sampling program
requires four bottles per sample event.
AT
BOTTLES
6:00
1- 4
5:55:33
Indicates the number of the upcoming sample, the total number of samples each bottle is to receive, and the current
bottle number. The program requires four samples per bottle.
1 OF 4,
AT 6:00
BOTTLE 1
5:55:33
Indicates the sample and bottle numbers of the next sample event. The bottle set consists of four bottles. The
sampling program requires that four samples be placed in each bottle of the set.
1 OF 4, BTLS 1- 4
AT 6:00
5:55:33
Indicates the sample and bottle number of the next sample event. The current time appears in the lower right corner.
The sampling program requires that you use one bottle per sample event and that you switch the bottles on a time
basis. This display alternates with the display illustrated in item 6 at 3-second intervals.
SAMPLE 3, BOTTLE 1
AT 6:00
5:42:33
Indicates the time of the next bottle switch.
NEXT BOTTLE CHANGE
AT 10:00
19-JUN
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Section 3 Programming Guidelines
Example: Run State Displays: Time-Paced Sampling (Continued)
Indicates the sample and bottle numbers of the next sample event. The current time is shown in the lower right
corner. The sampling program requires four bottles per sample event and that the bottle sets be switched on a time
basis. This display alternates with the display illustrated in item 8 at 3-second intervals.
SAMPLE 2, BTLS 1 - 4
AT 6:00
5:42:33
Indicates the time of the next bottle-set switch.
NEXT SET CHANGE
AT 8:00
19-JUN
Indicates a sample in progress.
BOTTLE 1
PUMPING 200 ml
Example: Run State Displays: Flow-Paced Sampling
Indicates the programmed start time of a flow-paced sampling program when no sample is to be taken at the start
time. The first line reports the programmed start time and date, the second line reports the current time and date.
START AT 6:00
5:42:43
19-JUN
19-JUN
Indicates the programmed start time of a flow-paced sampling program when a sample is to be taken at the start
time. The current time appears in the lower right corner. The sampling program requires one bottle per sample event.
AT
BOTTLE 1
6:00
5:42:33
Indicates the bottle number of the next sequential sample. The second line reports the number of flow pulses
remaining until the next sample event.
AFTER
BOTTLE 1
5 PULSES
Indicates the bottles that will receive samples at the next sample event. The second line reports the pulses remaining
until the next sample event. The sampling program requires three bottles per sample event.
BOTTLES 5- 7
AFTER 25 PULSES
Indicates the number of the upcoming sample, the total number of samples each bottle is to receive, and the current
bottle number. This display indicates that four samples are to be deposited in each bottle.
1 OF
AFTER
4,
BOTTLE 1
10 PULSES
Indicates the sample and bottle numbers of the next sample event. The bottle set consists of four bottles. The
sampling program requires that four samples be placed in each bottle of the set.
1 OF 4,
AFTER
BTLS 1- 4
1000 PULSES
Indicates the sample and bottle number of the next sample event. The sampling program requires that you use one
bottle per sample event and that you switch the bottles on a time basis. Alternates with the display illustrated in item 8
at 3-second intervals.
SAMPLE 2, BOTTLE 1
AFTER 10 PULSES
Indicates the time of the next bottle switch.
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Section 3 Programming Guidelines
Example: Run State Displays: Flow-Paced Sampling (Continued)
NEXT BOTTLE CHANGE
AT 10:00
19-JUN
Indicates the time of the next bottle switch.
SAMPLE 2, BTLS 1 - 4
AFTER 10 PULSES
Indicates the time of the next bottle-set switch.
NEXT SET CHANGE
AT 10:00
19-JUN
Indicates a sample in progress.
BOTTLE 1
PUMPING 200 ml
Example: Run State Displays: Composite Sampling
Indicates the sample number of the next sample and the total number of samples for time-paced routines. The
current time is shown in the lower right corner.
SAMPLE 1 OF 12
AT 6:00
5:43:33
Indicates the sample number of the next sample and the total number of samples for flow-paced routines.
SAMPLE 1 OF 12
AFTER 10 PULSES
Indicates a sample in progress.
BOTTLE 1
PUMPING 200 ml
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Section 4 Options and Interfacing Equipment
This section discusses major options available with the Teledyne
Isco 3700R.
4.1 Connections to
External Devices
The 3700 Series Samplers can collect samples on a flow-paced
basis using flow inputs from an external flow meter. The sampler
requires a 5-to-15 VDC pulse of at least 25-millisecond duration
to register a flow pulse. Open-channel flow meters are connected to the sampler by attaching a flow meter connect cable to
the flow meter connector located on the rear of the sampler.
Closed-pipe flow meters are connected to the sampler’s Flow
Meter port using the Teledyne Isco 4-20 mA Input Interface
device (see Appendix B Accessories).
Your sampler has an additional connector, labeled “PRINTER,”
used to connect the sampler to an Isco Field Printer or laptop
computer. Both the flow meter connector and the printer connector use the same 6-pin configuration. The printer cable connector accepts both the connector from the field printer and a
cable from a field computer or a laptop computer running the
Samplink software.
Note
The Field Printer has been discontinued and is no longer sold
by Teledyne Isco.
4.1.1 Isco Flow Meters and
Flow Loggers
The 4200 Series Flow Meters, 2100 Series Flow Modules, and
4100 Series Flow Loggers, and UniMag Closed-Pipe Flow Meters,
are collectively called “flow meters” in this manual. You can purchase cables to connect the 3700 samplers to an Isco flow meter,
flow logger, or 2100 series flow module. Refer to the Accessories
List in the back of this manual for details. To make the connection, attach the appropriate cable connector to the flow meter
according to directions in the flow meter in instruction manual,
attach the other connector to the 6-pin flow meter connector on
the rear of the sampler.
Note
If a connect cable is not attached to the flow meter or print connectors, be sure that the protective covers are tightly fastened in
place.
4-1
3700R/3740 Refrigerated Sampler
Section 4 Options and Interfacing Equipment
Figure 4-1 6-pin Connector Diagram
Table 4-1 Flow Meter
Connector Wiring
A
+12 VDC
B
Common
C
Flow Pulses In
D
Bottle Number Out
Master/Slave Out
E
Event Mark Out
F
Inhibit In
Table 4-2 Printer
Connector Wiring
4.1.2 Non-Isco Flow Meters
4-2
A
+12 VDC
B
Common
C
Printer Source
D
Transmit
E
Receive
F
NC
You can connect certain non-Isco Flow meters directly to a 3710
for flow-paced sampling. The flow meter must have an isolated
contact closure of at least 25 milliseconds to provide acceptable
flow pulses to the sampler. The frequency of the contact closure
must be directly proportional to total flow. Teledyne Isco offers
both a connector and cable clamp to connect a non-Isco Flow
meter to the 3700 samplers. Connect the flow meter pulse output
to the A and C pins of the 6-pin Flow Meter connector on the
3700 (Figure 4-1). Refer to your flow meter’s instruction manual
for further details.
3700R/3740 Refrigerated Sampler
Section 4 Options and Interfacing Equipment
Teledyne Isco also offers a connector prewired to a 22-foot
(6.7-meter) cable that terminates in two wires. The black wire is
connected to pin A; the white wire to pin C.
Note that you will be unable to communicate anything other
than the flow pulse contact closure with a non-Isco Flow meter.
The non-Isco Flow meter will not be able to interpret event and
bottle number information.
If the flow pulse generated by the contact closure on the flow
meter is not compatible with Teledyne Isco’s standard, contact
Teledyne Isco’s Special Products Department for an appropriate
interface device.
4.1.3 4-20 mA Flow Signals
The 3700 Sampler can also be used with flow meters having
other types of outputs, for example, a 4 to 20 mA output directly
proportional to the flow rate. However, these flow meters require
a special interface device to convert their output signal to one
compatible with the 3700 sampler.
The 4–20 mA Sampler Input Interface converts 4 to 20 mA
output signals from both non-Isco Flow meters and closed-pipe
flow meters to flow pulses acceptable to the 3700 Sampler.
Figure 4-2 4-20 mA Sampler Input Interface
4.1.4 1640 Liquid Level
Actuator
The 1640 Liquid Level Actuator is a device used to begin a sampling routine when the liquid level of the sample flow stream
reaches a predetermined height. The actuator is used to inhibit
sampling according to flow levels; i.e., if the level of the flow
stream falls below the actuator’s probe, the actuator will inhibit
sampling until the level again rises to contact the probe.
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Section 4 Options and Interfacing Equipment
Figure 4-3 1640 Liquid Level Actuator
The actuator can be set to control the sampler in two modes:
Latch Mode – The sampler continues the sampling routine even
though the liquid level has receded and liquid no longer contacts
the sensor.
Toggle Mode – The sampler will halt the routine when the
liquid ceases to contact the sensor.
To connect the actuator to the sampler, attach the actuator cable
to the flow meter connector on the rear of the sampler. Refer to
the Liquid Level Actuator Instruction Manual provided with the
actuator for additional information. You can use the actuator
with an Isco flow meter if you have the Y-Connect Cable.
You must configure the sampler to respond to the actuator. Information configuring the sampler for use with the actuator can be
found in the discussion of the Enable Pin configure option in
Section 3.9.19.
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3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
The 3700R/3740 is ruggedly built to withstand difficult field
operating conditions and will maintain maximum reliability
when these simple maintenance procedures are followed. As with
any piece of field operated equipment, preventive maintenance is
necessary to keep it functioning properly.
5.1 Weather and
Corrosion Resistance
The 3700R/3740 is designed to be operated in relatively hostile
environments. It may be directly exposed to wet environments
and still function properly. The refrigerator’s mechanical and
electrical components, and the sampler controller are protected
from rain, accidental spray, etc.
However, if the refrigerator is to be operated out-of-doors, in a
corrosive atmosphere, or in a wet environment for prolonged
periods, it is highly advisable to further protect it with a fabricated shelter or instrument enclosure. Enclosures specifically
made for the 3700R/3740 are available from COSYSCO (P.O. Box
4837, Walnut Creek, CA 94596, 415-947-5756) and Plasti-Fab
(P.O. Box 100, Tualatin, OR 97062, 503-692-5460).
The refrigerator’s exterior is fabricated from Type 304 brushed
stainless steel. The remainder of the exposed metal parts are
anodized or Iridited™ aluminum, or stainless steel. The controller cover and base are constructed from ABS (acrylonitrile-butadiene-styrene) plastic, as is the bottle locating base.
The controller’s electronics and mechanisms are protected by a
totally sealed Noryl™ (polyphenylene oxide) control box. The
control box is rated at NEMA 4X, 6.
5.2 Cleaning
The following sections present information on cleaning the
sample bottles and pump tubing. Information is also included for
cleaning the refrigerator’s interior, exterior, condenser coil, and
bottle locating base.
5.2.1 Tubing
The suction line and pump tubing can be cleaned by placing the
end of the suction line in a cleaning solution and pumping this
solution through the tubing system using the pump forward and
pump reverse keys. Follow with a clean water rinse.
5.2.2 Sample Bottles
The bottles have a wide mouth to facilitate cleaning and can be
washed with a brush and soapy water or washed in a dishwasher.
The glass bottles can be autoclaved; however, the plastic lids and
bottles should not be autoclaved.
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3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
5.3 Cleaning Protocols for
Priority Pollutants
The following sections are excerpted from U.S. Environmental
Protection Agency Publications EPA-600/4-77-039 (“Sampling of
Water and Wastewater” by Dr. Phillip E. Shelley) to provide an
example of sampler cleaning procedures for priority pollutants.
Proper cleaning of all equipment used in the sampling of water
and wastewater is essential to ensuring valid results from laboratory analysis.
Cleaning protocols should be developed for all sampling
equipment early in the design of the wastewater characterization
program. Here also, the laboratory analyst should be consulted,
both to ensure that the procedures and techniques are adequate,
as well as to avoid including practices that are not warranted in
view of the analysis to be performed.
5.3.1 Cleaning Examples
As an example, Lair (1974) has set down the standard operating
procedures for the cleaning of sample bottles and field procedures equipment used by USEPA Region IV Surveillance and
Analysis field personnel engaged in NPDES compliance monitoring. They are reproduced following for a typical automatic
sampler and related sampling equipment.
Teledyne Isco Glass Sample Bottles:
1. One spectro-grade acetone rinse.
2. Dishwasher cycle (wash and tap water rinse, no detergent).
3. Acid wash with at least 20 percent hydrochloric acid.
4. Dishwasher cycle, tap and distilled water rinse cycles, no
detergent.
5. Replace in covered Teledyne Isco bases.
Suction Line (1/4 or 3/8 Vinyl):
1. Do not reuse sample tubing. No cleaning required. New
sample tubing is to be used for each new sampling setup.
2. Use Teflon tubing where samples for organics are to be collected.
Teledyne Isco Pump Tube:
1. Rinse by pumping hot tap water through tubing for at least
2 minutes.
2. Acid wash tubing by pumping at least a 20 percent solution
of hydrochloric acid through tubing for at least 2 minutes.
3. Rinse by pumping hot tap water through tubing for at least
2 minutes.
4. Rinse by pumping distilled water through tubing for at
least 2 minutes.
Teflon Tubing:
1. Rinse twice with spectro-grade acetone.
2. Rinse thoroughly with hot tap water using a brush if possible to remove particulate matter and surface film.
3. Rinse thoroughly three times with tap water.
4. Acid wash with at least 20 percent hydrochloric acid.
5-2
3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
5. Rinse thoroughly three times with tap water.
6. Rinse thoroughly three times with distilled water.
7. Rinse thoroughly with petroleum ether and dry by pulling
room air through tubing.
8. Dry overnight in warm oven (less than 150° F), if possible.
9. Cap ends with aluminum foil.
5.4 Cleaning the
Refrigerator
The refrigerator’s exterior may be periodically cleaned with
soapy water using a sponge or nonmetallic brush to keep it free
from corrosive solutions, grease, oil, etc. After cleaning, it should
be wiped dry. Automotive wax may be applied to the interior and
exterior surfaces of the refrigerator to make them easier to clean
and more resistant to corrosion. Do not direct a hose spray
toward the underside or into the front grille of the refrigerator.
The vacuum formed plastic refrigerator interior may also be
cleaned with soapy water as necessary.
Because the refrigerator uses a forced-air system for cooling the
compressor and condenser coil; dust, lint, and other debris will be
pulled into the unit and will eventually accumulate on the condenser coil and other components in the air circulation path. If
the refrigerator is not cleaned periodically, damage due to overheated components may result.
WARNING
Disconnect the refrigerator’s power before performing any
service activities
The condenser coil and surrounding areas should be cleaned
annually; more frequently under severe operating conditions. To
clean,
1. Remove the screws that hold the back panel on to the
refrigerator and remove the panel.
2. Vacuum the fan, compressor, and surrounding areas.
3. Check the fan for freedom of movement. Oiling the fan
motor is not necessary because the motor bearings are
sealed. If the fan motor does not rotate freely, it should be
replaced.
4. Replace the back panel.
5. Remove the front grille. Vacuum the condenser coil and
surrounding areas.
6. Replace the grille.
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3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
5.4.1 Cleaning the Bottle
Locating Base and
Sample Bottles
5.5 Pump Tubing
5.5.1 Inspection of Pump
Tubing
The bottle locating base may be cleaned with soapy water and a
sponge.
The sample bottles have a wide mouth to facilitate cleaning. The
2.5 gallon glass bottle may be washed with a brush and soapy
water then washed in a dishwasher or autoclaved. The 2.5, 4, and
5.5 gallon polyethylene bottles may be washed with a brush and
soapy water or washed in a dishwasher, but not autoclaved.
The pump tube serves two functions: it is a pump tube in the
peristaltic pump and a distribution tube, routing the sample
liquid from the pump outlet to the sample bottle. The pump tube
consists of a single piece of medical grade Silastic™ silicone
rubber tubing. Medical grade tubing is used because of its
superior mechanical properties and because it does not contain
any organic materials. Non-medical grade silicone rubber tubing
can contain organic vulcanizing agents. During the vulcanizing
process, these agents are converted into other compounds which
can be leached into the sample. The medical grade silicone
rubber tubing supplied by Teledyne Isco for use with the 3700R
Sampler will not contribute any organic material to the sample.
The pump tubing is extremely durable. However, the constant
mechanical strain placed on the tubing by the peristaltic action
of the pump will eventually cause the tubing to fatigue and fail.
Inspect the pump tubing periodically for wear inside the pump
by removing the cover. Check the tubing for cracks where the
pump roller compresses the tubing. Replace it with a new pump
tube, if necessary.
The inspections should be fairly frequent when the liquid being
sampled contains a high percentage of suspended solids. If the
liquid is relatively free of solids, the inspections can be less frequent. The Tubing Life configure option reports the number of
pump counts elapsed during the life of the pump tube.
Note
The importance of regular tubing replacement cannot be overstated. The key is to replace the tube before failure, not after.
When a pump tube ruptures, grit and other abrasive debris can
be driven into the pump shaft seal. Over time, this abrasive
material will degrade the pump seal, jeopardizing the
NEMA 4x 6 rating of the controller.
Failure to maintain the pump tube may result in permanent
damage to the sampler. Check the condition of the pump tube
regularly and if the tube shows signs of fatigue or wear,
replace it immediately. A properly maintained sampler will provide the years of reliable service that is expected of a Teledyne
Isco Sampler.
The amount of tubing (13.5 inches) used in the pump is less than
half the total length of the pump tube (47 inches). In some cases,
when the tube has not been damaged to the point of leaking, the
tube can be used twice by simply turning it around.
5-4
3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
WARNING
Pump may actuate without warning. To avoid injury,
sampler must be off when pump housing cover is removed
for inspection or tubing replacement.
Note
The black bands used to assist you in correctly positioning the
tubing in the pump and detector are placed on one end only. If
you turn the tubing around, you will not be able to use the
bands for reference.
Captivated
Thumbscrews (6)
Liquid Detector
Pump Case
Figure 5-1 Liquid Detector and Pump Case
5-5
3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
Machine Screw
Pump
Rotor
Pump Shaft
Locate bands here to place pump tubing correctly
Figure 5-2 Interior of Liquid Detector and Pump Tube
5.5.2 Removing the Pump
Tubing
WARNING
Pump may actuate without warning. To avoid injury,
sampler must be off when pump housing cover is removed
for inspection or tubing replacement.
To remove the tubing:
1. Disconnect power from the unit.
2. Detach the outer cases of the liquid detector and pump by
loosening the captivated thumbscrews shown in Figure
5-1. This will expose the pump tubing as shown in Figure
5-2.
3. Pull the tubing away from the detector. Extract the tubing
from the pump. The pump rollers can be rotated manually
to facilitate the removal of the tubing. After the tubing is
removed, clean the interior of the pump case thoroughly.
4. Remove the suction line, if attached, and pull the pump
tubing from the pump tube port.
5.5.3 Installing a New Pump
Tube
5-6
To install new tubing:
1. The pump tube is marked with two black bands. These
bands are used to locate the tubing in the detector and
3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
pump. Correct placement is critical to prolong the life of
the pump tube and to assure efficient operation and accurate sample volumes.
Facing the liquid detector, place the inner edge of the end
band against the upper left inlet of the liquid detector.
Place the inner band at the lower outlet of the liquid detector. Figure 5-2 shows the correct placement of the tubing at
the liquid detector.
2. Slip the pump tubing under the rollers so that the pump
tubing does not interfere with the installation of the outer
pump lid.
3. Replace the outer pump lid and tighten the four thumbscrews.
4. Re-check the position of the marker bands and adjust the
tubing if the position of the bands indicate the tubing has
slipped.
5. Replace the outer case of the liquid detector and tighten
the two thumbscrews.
6. Feed the free end of the tube down through the pump tube
port.
7. Re-install the suction line, as described in Section 5.6.
8. Reset the Pump Tube count to zero. Refer to the discussion
of the Tubing Life configure option in Section 3.9.22.
5.6 Suction Line
It may be desirable to replace the suction line for one of several
reasons. The suction line may be worn, cut, contaminated, or otherwise damaged; it should be periodically inspected for damage.
In critical sampling, it may be necessary to replace the suction
line between sampling programs to avoid cross contamination.
When sampling site conditions change, it may be necessary to
replace the suction line with a different diameter or type of line
(vinyl or Teflon). The vinyl suction line contains a very low PPM
(parts per million) level of phenols. If this affects your samples,
use the Teflon line.
5.6.1 Cleaning Suction Line
The suction line and the remainder of the pump tube system
should be cleaned occasionally as described in Section 5.2.1.
5.6.2 Replacement Vinyl
Line
Replacement vinyl suction lines are available from Teledyne Isco
in two forms. First, a complete suction line, with strainer and
tube coupling, is available in 10 ft. and 25 ft. lengths for each of
the 1/4 inch and 3/8 inch ID (Inside Diameter) vinyl suction lines.
Second, bulk suction line in the 1/4 inch ID and 3/8 inch ID vinyl
tube is available in 100 and 500 ft. rolls.
5.6.3 Replacement Teflon
Line
The 3/8 inch ID Teflon suction line is available from Teledyne Isco
in line lengths of 10 and 25 feet.
5.7 1/4 and 3/8 Inch ID Vinyl
Suction Line
The following sections discuss the replacement of the complete
suction line-strainer assemblies, the sizing of the suction line,
and the assembly and installation of the bulk tubing. The suction
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3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
line is removed from the pump tubing by detaching the tube coupling, as described in Section 2.2. If a complete new suction
line-strainer assembly of the standard 10 or 25 ft. length is used,
it should be installed as described in Section 2.2.
5.7.1 Bulk Suction Line
If you are using bulk suction line to replace the old line, detach
the old line from the tube coupling and remove the strainer. Cut
the new suction line to the desired length in one foot increments.
The line must be between 3 and 99 feet long. To insure accurate
sample volumes, it is important that the line is cut in one foot
increments and that the line length is correctly entered in the
Suction Line configure option (page 3-41). Screw the strainer into
the new suction line. The new suction line can now be installed
as described in Section 2.2.
5.8 3/8 Inch ID Teflon
Suction Line
The suction line is removed from the pump by first loosening the
clamp that secures the line to the pump tube and then pulling
the suction line out of the pump tube. If a new suction line (either
with or without the optional stainless steel strainer) is to be
used, it is installed as described in Section 2.2. To install the
optional stainless steel strainer, heat the end of the suction line
to make it more flexible and carefully screw the strainer’s
threaded connector into the suction line.
5.9 Internal Desiccant
A humidity indicator, labeled “INTERNAL CASE HUMIDITY,” is
located in the lower left corner of the control panel. It indicates
the amount of moisture present inside the control box. The paper
indicator is blue in a dry state.
The control box is a completely sealed unit. It is shipped from the
factory with three fresh 4 oz. bags of desiccant installed inside.
(The control box does not need to be opened during normal operation.) This desiccant should absorb any moisture which may
accumulate in the control box. Thus, the humidity indicator
should remain blue under normal conditions. If moisture does
accumulate, the numbered areas on the indicator will turn light
pink or white, starting with the area numbered “20.” This indicates that the relative humidity inside the control box exceeds
20%. As more moisture accumulates, the areas numbered “30”
and “40” will turn light pink or white, indicating relative humidities of 30% and 40%.
If the 30% area of the humidity indicator turns light pink or
white, the control unit should be opened, inspected for leaks, and
the desiccant renewed. This is done by unscrewing the ten screws
(indicated in Figure 5-3) around the outer rim of the control box
bezel, and carefully lifting the bezel and cover off the control box.
The control box contains electronic circuitry which may be
damaged by static discharge. Open the control box only in a
static free environment.
5.9.1 Renewing the
Desiccant
5-8
3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
CAUTION
Desiccant may produce irritating fumes when heated. Observe
the following precautions:
• Use a vented oven in a well ventilated room.
• Do not remain in the room while recharging is taking place.
• Use the recommended temperature.
There have been reports of irritating fumes coming from the
desiccant during reactivation. While our attempts to duplicate
the problem have been unsuccessful, we still urge you to use
caution.
Material Safety Data Sheets are provided in Appendix F.
The desiccant is renewed by removing the three bags of desiccant
from the control box, as shown in Figure 5-4, and placing them in
an oven following the instructions below.
Place a sheet of brown paper on a flat metal sheet. You can use a
brown grocery bag and a typical cookie sheet. Place only the bags
on the sheet. Do not stack the bags on top of each other or allow
them to touch. Place in a vented, circulating forced air, convection oven in a well ventilated room. Allow two inches of air
space between the top of the bags and the next metal tray above
the bags. Keep the tray a minimum of 16 inches from heating
element. Heat the bags at a temperature of 240 to 250oF (116 to
121oC) for 12 to 16 hours. At the end of the time period, the bags
should be immediately removed and placed in an air tight container for cooling. The desiccant will be recharged to approximately 80 to 90% of its previous capacity. After repeated
recharging, the desiccant bag may require replacement.
Some bags will have the temperature and time for recharging the
desiccant printed on the bag. If they differ, use the temperature
and time printed on the bag.
Replacement bags of desiccant are available from Teledyne Isco;
refer to the Replacement Parts Lists in Appendix A.
Before reinstalling the cover, coat the cover’s gasket with a light
film of silicone grease to seal the control box. Tighten the ten
screws which hold the control box cover and bezel in place using
an even cross-torquing pattern.
5-9
3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
Screws (10)
Humidity Indicator
Figure 5-3 Location of 10 Screws on the Control Box Frame
5-10
3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
Grounding
Strap
Desiccant Bags (3)
Figure 5-4 Control Box Internal Desiccant
5.10 3700 Controller
Mounting
The 3740 Sampler Refrigerator is available to convert a 3700
Portable Sampler into a 3700R Refrigerated Sampler. To do this,
remove the control box from the portable sampler following the
instructions in the 3700 Portable Sampler Instruction Manual.
Because of the longer distance between the pump discharge and
the sample bottle in the refrigerator, the standard 36 inch (92
cm) pump tube must be replaced with the pump tube supplied in
the mounting kit. The new pump tube may be installed following
the instructions in Section 5.5.3 of this manual.
Once the new pump tube is installed, use the parts supplied in
the controller mounting kit and follow the instructions below to
prepare and mount the controller on the refrigerator. Refer to
Figure 5-5.
1. Turn the controller upside down and screw the four,
threaded mounting rods into the four corner feet of the controller. The two middle feet are not used. The controller is
now ready to be installed on the refrigerator.
2. Open the controller cover on the top of the refrigerator and
orient the controller on the top of the unit so the peristaltic
pump and liquid detector face the front of the refrigerator.
5-11
3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
3. Carefully insert the threaded rods into the four mating
holes on the refrigerator and push the controller down
until it is resting on the refrigerator, install the spacers
and wing nuts on the four threaded rods.
4. Feed the pump tube down through the tubing feed through
into the interior of the refrigerator and route the pump
tube into the distributor arm.
5. Connect the two-pin connector on the power cable to the 12
VDC plug on the controller.
5.11 Servicing
This section provides information to assist you in correcting malfunctions. To view schematic drawings of the circuit boards discussed in this section, first find the serial number on your
controller, then go to our web site, www.isco.com. Go to
Training and Support and select Product Support. Click Automatic Wastewater Samplers. In the left margin, click Schematics.
Enter the serial number of your instrument, then click Get Schematics to view a list of PDF files that contain the available schematics.. Additionally, you may refer to the Replacement Parts
Lists and the Accessories List for the 3700R/3740 Refrigerated
Sampler.
Figure 5-5 Mounting the Control Box
5-12
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Section 5 Routine Maintenance and Service
Figure 5-6 3740 Electrical Schematic
5.12 Refrigerator Electrical
System
An electrical circuit schematic for the refrigerator and the
sampler’s 12 VDC power supply is shown above in Figure 5-6.
WARNING
Disconnect the refrigerator’s power before performing any
service activities.
Access to the electrical and refrigeration components can be
gained by removing the back panel of the refrigerator. Access to
the sampler controller’s 12 VDC power supply can be gained by
laying the refrigerator on its side and removing the bottom plate
and back panel.
The refrigerator compressor is equipped with external over-temperature and overload protection, and may fail to start immediately when power to the unit is momentarily interrupted or when
the thermostat setting is changed. It is normal for the overload
relay to trip repeatedly in these instances, and in no way indicates a malfunction.
5.13 Refrigeration System
The refrigeration system is shown schematically in Figure 5-7.
See the refrigerator’s serial number label for the charge and type
of refrigerant.
CAUTION
All refrigeration repair work must be performed by a qualified
refrigeration technician.
Always purge the system with nitrogen. NEVER USE AIR to
purge the system.
Always recover the refrigerant.
When recharging, do not leave a line tap in the refrigeration
system because of possible corrosion or leakage problems.
5-13
3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
Capillary Tube
Condenser
Coil
Evaporator
Plate
Compressor
Figure 5-7 Refrigeration Schematic Diagram
5.14 Servicing the 3700
Controller
The electronic circuitry of the 3700R Sampler is solid-state and
its reliability is high. If the unit should fail to operate properly,
items such as a broken or intermittent connection in the power
cable or wiring harness should be suspected.
5.15 If Serious Problems
Occur
If the sampler fails to operate properly, call the Teledyne Isco
Customer Service Department. The service department will
provide information on how to return the sampler to the factory
for repair. Contact:
Customer Service Department
Teledyne Isco, Inc.
P.O. Box 82531
Lincoln, NE 68501
Phone: (800) 228-4373
5.16 Access to Electronic
Components
WARNING
Disconnect power from the refrigerator and controller when
working on the unit.
To gain access to the electronic components housed in the control
box:
1. Disconnect the power source from the sampler.
2. Remove the ten screws around the outer edge of the control box frame.
3. Lift the cover and frame off the control box and turn it over,
as shown in Figure 5-8.
4. The control box cover assembly may be disconnected from
the control box lower section by disconnecting the five connectors (see Figure 5-8) and the grounding strap.
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3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
5. The main circuit board assembly of the 3700 Sampler is
protected by an aluminum shield. To remove this shield,
unscrew the stop nut that holds the short grounding strap
and unscrew the four screws located in each corner of the
shield. Lifting the shield off will then reveal the main circuit board shown in Figure 5-9.
6. To remove the circuit board assembly from the control box
cover, unscrew the four hex threaded stand-offs and the
phillips head screw, indicated in Figure 5-9. The circuit
board may now be pulled away from the control box cover.
7. To completely disconnect the circuit board assembly from
the cover, disconnect the connector shown in Figure 5-9.
5.17 Removal of the
Distributor Gear Case
Assembly
The distributor gear case assembly is located in the lower section
of the control box. To gain access to the lower section of the
control box, follow the instructions in Access to Electronic Components. Use the steps below to gain access to these and other components in the control box lower section:
1. Disconnect power from the unit.
2. Remove the two nuts, the screw, and the grounding strap
indicated in Figure 5-10.
3. Lift the plastic tray straight up out of the control box.
4. The distributor gear case can be removed from the control
box by unscrewing the four screws at the base of the distributor, and disconnecting the two grounding straps indicated
in Figure 5-11.
5.18 Removal of the Pump
Gear Case Assembly
The pump gear case assembly is located in the lower section of
the control box. To gain access to the pump gear case, follow the
instructions in Access to Electronic Components and Removal of
the Distributor Gear Case Assembly. Use the following steps to
remove the pump gear case.
1. Remove the liquid detector lid and the pump lid by loosening the captivated thumbscrews on the pump exterior. Figure 5-1 shows the location of the thumbscrews.
2. Remove the pump tubing from the interior of the pump.
3. Remove the pump rotor by loosening the machine screw
and locknut attaching the rotor to the pump shaft. Figure
5-2 shows the location of the machine screw. Rotate the
rotor until you can reach the screw with a screwdriver
inserted through the pump case inlet sleeve.
4. Slide the rotor off the pump shaft.
5. Remove the pump case by unscrewing the four screws on
the back of pump’s inner case.
6. Lift the pump gear case assembly out of the control box.
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Section 5 Routine Maintenance and Service
5.19 Precautions for
Servicing CMOS
Circuitry
Most of the circuitry in the 3700 controller is made up of CMOS
components. Because of the oxide gate structure of these devices,
they are extremely susceptible to destruction caused by the discharge of static electricity through their inputs.
WARNING
Disconnect power from the refrigerator and controller when
working on the unit.
CAUTION
Keep yourself grounded when handling disassembled equipment.
Phillips Head
Screws (4)
Stop Nut
Disconnect 5 Connectors
Shield
Figure 5-8 Underside of the Control Box Cover
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3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
Hex Standoff (4)
Phillips Head
Screw
Connector
Figure 5-9 Main Circuit Board
Nut
Nut
Grounding
Strap
Screw
Figure 5-10 Control Box Tray Removal
5-17
3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
Ground Strap
Ground Strap
Figure 5-11 Distributor Gear Case Removal
5.20 Preliminary
Electronics
Troubleshooting Steps
Following are suggested areas to check before attempting to
service the microprocessor CPU and associated circuitry. These
checks should be made before looking at the CPU and memory.
1. Supply voltage is correct.
2. Wiring harnesses, connectors, and solder joints are in good
condition.
3. Appearance of physical damage, such as burned or broken
components, overly hot components, or evidence of water
damage.
4. Shorted or open diodes and transistors, especially drive
transistors.
5. Voltage regulators working properly.
6. Excessive current draw in some or all the circuitry.
7. Correct input signals to unit.
8. Crystal oscillator operating and at the proper frequency.
9. Reset circuitry working properly.
5.20.1 Circuit Boards
The following is a general description of the 3700 controller’s
electronic circuitry. While reading this description, refer to the
pictorial views of the circuit boards (Figures 5-12 and 5-13).
The 3700 controller is a microprocessor-based device which executes a program stored in ROM. The program (software) is a
series of instructions that tell the microprocessor what to do in
order to accomplish the various functions which the sampler
5-18
3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
must perform. The software is discussed only as is necessary to
describe the operation of the circuitry (hardware). The following
sections discuss the hardware in greater detail.
A 12 VDC connector on the side of the control box is used to
connect to an external 12 V source. A 3.75 Amp PTC device provides circuit protection.
The 3700 controller contains two printed circuit boards: the main
board (Figure 5-12) and the pump control board (Figure 5-13).
The display module (attached to the main circuit board) also contains a small circuit board. This module is purchased assembled
and does not contain any user-serviceable parts. Unless it is
being replaced, the display module should not be disturbed.
5.20.2 Main Board
Power is supplied to the circuitry through P4 – pin 1 is ground
and pin 2 is 12 V. A 5 V switching regulator (IC U11) is used to
obtain a 5 V rail from the 12 V supply. All of the ICs used in the
3700 controller get their operating power from the 5 V rail. IC
U11 is also used as a low voltage detector – it constantly monitors the 12 V supply. IC U17, a voltage converter, provides a -5 V
supply which is needed for some components.
IC U8 is the microprocessor, IC U5 is the ROM, and IC U7 is the
RAM. These three ICs make up the “brains” of the 3700 controller. The microprocessor executes the program stored in ROM.
While executing, information (program settings, sample data,
etc.) is retrieved from and stored in RAM. A 4.608 MHz crystal
oscillator (Y1) sets the microprocessor’s execution speed.
The 3700 controller keeps track of time with a real time clock (IC
U3). Both the RAM and IC U3 are battery-backed with a lithium
battery (B1). IC U1 is a switch which selects between battery and
system power.
Three devices allow the microprocessor to communicate with the
outside world: the 2 line, 20 characters per line LCD, IC U9, and
IC U18. The LCD allows for communication with the user and is
connected through P3. IC U13, transistor Q2, thermistor R15,
and other components provide the LCD with a temperature compensated driver voltage. By providing temperature compensation, the display quality is optimized over a wide temperature
range. IC U9 and IC U18 are I/O devices which allow the microprocessor to: read the keypad, sound the beeper, advance the distributor, count pump counts, and so on.
A 24 position keypad, connected at P5, is used to direct the
microprocessor through the program. Many discrete components
along with IC U9 are used to decode pressed keys. All user-originated instructions to the 3700 controller enter the system
through the keypad.
The 3700 controller is supplied with a liquid detection system
that gives it the ability to accurately deliver specified sample
volumes. The liquid detection system consists of a piezoelectric
sensor and filtering circuitry. The sensor, mounted on the
exterior of the control box, produces a signal proportional to an
induced strain on the pump tubing. This signal is routed through
5-19
3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
P8 to IC U15 and its associated circuitry where it is massaged
into a YES or NO indication of liquid presence. IC U15, containing a switched capacitor low pass filter and two Op Amps, is
the main circuit component of the detection system.
A collection of transistors, resistors, and diodes are used to
control the distributor motor. The motor control circuitry connects to the distributor through P6 and can drive the distributor
in either direction. As the distributor moves, its position is monitored by an optical device mounted to the distributor assembly.
IC U20 supplies the necessary current for the optical device.
An RS-232 serial communications port is connected to the system
at P9. This port is used to output sampler status, program settings, and sampling results to a printer or an interrogator. IC
U21, IC U19, and a handful of discrete components are used to
transmit serial information, receive serial information, and sense
the presence of the externally connected device.
5.20.3 Pump Control Board
The pump control board is an integral part of the pump assembly
and serves two functions: control the pump motor and sense
pump revolutions.
The pump motor control consists of a 2-pole double-throw relay
(K201) and transistor switches (Q201, Q202, and Q203). The
relay is used to change the pumping direction and will run the
pump in the reverse direction when in the rest state. Each time
the pump runs, the microprocessor sends the pumping direction
signal through pin 1 of P7, waits for the relay to change state,
then starts the pump by sending a high signal through pin 3 of
P7. Waiting for the relay to change state before applying power
prevents arcing at the relay contacts.
A key element of the pump revolution count sensor is the
LED-phototransistor device (IC201). Whenever the pump is
running, power is supplied to IC201. A rotating disk positioned
between the LED and phototransistor periodically interrupts the
transmitted signal. These interruptions create pulses which are
sent back to the main board at pin 8 of P7 to be counted. The
microprocessor uses these counts to determine the pumped
volume.
5-20
3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
Figure 5-12 3700 Main Circuit Board Component Layout
5-21
3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
201
202
203
Q201
204
Q202
R201
R202
205
R203
208 209
R204
206
210
207
C
201
212
211
D
201
P201
K201
IC201
Figure 5-13 Optical Counter PCB Component Layout
5.21 Sample Event Cycle
and Delivery of
Sample Volumes
The sequence of steps in a typical sequential sample event is
described below. Should you suspect a malfunction in the
delivery of the sample volumes, this information will assist you
in determining the point at which the problem occurs.
1. A sample event is initiated.
2. The pump rotates in the reverse direction to air purge the
suction line inlet of any accumulated debris.
3. The pump direction changes, pumping in the forward
direction to fill the suction line.
4. After the suction line has been filled to the pump inlet, the
sample volume measuring portion of the sampling cycle
begins. The pump continues to rotate in the forward direction until the programmed sample volume has been delivered.
5. The pump direction again changes, pumping in the reverse
direction to air purge the suction line to avoid cross-contamination of samples. The pump then shuts off.
6. The sampler waits until another sample event is initiated
and the cycle begins again at step 1.
5-22
3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
5.21.1 Peristaltic Pump
The following is a brief description of the method by which the
sample volume is determined. The 3700 Sampler uses a peristaltic pump to transport the sample from the source to the
sample bottle. When compared with other suction lift sample
gathering methods, a peristaltic pump has numerous advantages: simplicity, reliability, no metering chamber required,
easily cleaned, etc.
5.21.2 Volumetric
Determination
The 3700 controller determines the volumetric delivery of its
peristaltic pump by electronically counting revolutions of the
pump rotor. Each revolution of the pump rotor corresponds to a
fixed number of “pump counts” and a certain volume of sample
liquid. However, the volume of liquid delivered by one revolution
of the pump rotor changes with the suction head and the type of
suction line. At each sample event, the liquid detection system
automatically compensates for changes in suction head and
adjusts the volume delivered for each revolution of the pump.
Thus, for a given type of suction line, each revolution of the pump
rotor results in the delivery of a known amount of sample
volume.
5.21.3 Sample Delivery
The sample pumping portion of a sample event consists of three
parts: suction line fill, liquid detection, and sample volume
delivery. The sampler counts the number of pump revolutions as
the suction line fills. At liquid detection, the controller uses that
count to determine the proper number of pump revolutions
required to deliver the programmed sample volume. It is
important to note that the volume delivered by a peristaltic
pump can be influenced by a number of factors other than those
discussed above. Thus, even with the sophistication of the sample
volume measuring functions of the sampler, the volume of
sample deposited in the sample bottle may vary from the programmed value. The repeatability of a sample volume from
sample to sample (which normally is the most important consideration) will typically be within the ± 10 ml specification stated
in Table 1-1.
5-23
3700R/3740 Refrigerated Sampler
Section 5 Routine Maintenance and Service
5-24
3700R/3740 Refrigerated Sampler
Appendix A Replacement Parts Lists
The following appendix contains illustrated replacement parts
listings, including part descriptions and order numbers.
Replacement parts can be purchased by contacting Teledyne
Isco’s Customer Service Department.
Teledyne Isco, Inc.
Customer Service Department
P.O. Box 82531
Lincoln, NE 68501 USA
Phone: (800) 228-4373
(402) 464-0231
FAX: (402) 465-3022
E-mail: IscoInfo@teledyne.com
A-1
3700R/3740 Refrigerated Sampler
Appendix A Replacement Parts Lists
A-2
3700R/3740 Refrigerated Sampler
Appendix A Replacement Parts Lists
A-3
3700R/3740 Refrigerated Sampler
Appendix A Replacement Parts Lists
A-4
3700R/3740 Refrigerated Sampler
Appendix A Replacement Parts Lists
DWG
603703266
REV B
A-5
3700R/3740 Refrigerated Sampler
Appendix A Replacement Parts Lists
DWG
603703266
REV B
A-6
3700R/3740 Refrigerated Sampler
Appendix A Replacement Parts Lists
DWG
603703266
REV B
A-7
3700R/3740 Refrigerated Sampler
Appendix A Replacement Parts Lists
A-8
3700R/3740 Refrigerated Sampler
Appendix A Replacement Parts Lists
Screw,
10-32 x 3/4
Locknut,
10-32
A-9
3700R/3740 Refrigerated Sampler
Appendix A Replacement Parts Lists
A-10
3700R/3740 Refrigerated Sampler
Appendix A Replacement Parts Lists
A-11
3700R/3740 Refrigerated Sampler
Appendix A Replacement Parts Lists
A-12
3700R/3740 Refrigerated Sampler
Appendix A Replacement Parts Lists
A-13
3700R/3740 Refrigerated Sampler
Appendix A Replacement Parts Lists
A-14
3700R/3740 Refrigerated Sampler
Appendix A Replacement Parts Lists
A-15
3700R/3740 Refrigerated Sampler
Appendix A Replacement Parts Lists
A-16
3700R/3740 Refrigerated Sampler
Appendix A Replacement Parts Lists
A-17
3700R/3740 Refrigerated Sampler
Appendix A Replacement Parts Lists
A-18
3700R/3740 Refrigerated Sampler
Appendix B Accessories
The following appendix contains the most commonly ordered
accessories for the 3700R Sampler, including part descriptions
and order numbers. For additional accessories, contact Teledyne
Isco Customer Service or your local sales representative.
Accessories can be purchased by contacting Teledyne Isco’s Customer Service Department.
Teledyne Isco, Inc.
Customer Service Department
P.O. Box 82531
Lincoln, NE 68501 USA
Phone: (800) 228-4373
(402) 464-0231
FAX: (402) 465-3022
E-mail: IscoInfo@teledyne.com
B.1 General Accessories
Extra Silastic pump tubing, 47" length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-3704-043
Model 3700 Sampler controller with pump tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68-3740-025
Extra Pocket Guide, Model 3700R/3700FR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-3703-178
Extra Silastic pump tubing, bulk 10' length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-6700-046
Extra Silastic pump tubing, bulk 50' length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-6700-047
Plastic graduated cylinder, 1000 ml, for sample volume calibration . . . . . . . . . . . . . . . . . . . .299-0020-00
B.2 Suction Lines and
Strainers
3/8"
ID × 10' vinyl suction line with standard weighted polypropylene strainer . . . . . . . . . . . 60-9004-378
3/8"
ID × 25' vinyl suction line with standard weighted polypropylene strainer . . . . . . . . . . . 60-9004-379
/8" ID × 10' Teflon suction line with protective coating, without strainer . . . . . . . . . . . . . . . . 60-1683-146
3
3/8"
ID × 25' Teflon suction line with protective coating, without strainer . . . . . . . . . . . . . . . . 60-2703-114
3
/8" Standard weighted polypropylene strainer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-9004-367
1/4"
stainless steel low flow strainer only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69-2903-139
3/8"
stainless steel low flow strainer only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69-2903-138
Weighted strainer only, 3/8", all plastic CPVC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-3704-066
1/4"
ID vinyl tubing, bulk 100' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-1680-055
1
/4" ID vinyl tubing, bulk 500' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-1680-056
B-1
3700R/3740 Refrigerated Sampler
Appendix B Accessories
1
/4" ID vinyl tubing, bulk 1000' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-1680-057
3
/8" ID vinyl tubing, bulk 100' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-1680-058
3
/8" ID vinyl tubing, bulk 500' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-1680-059
1/4"
Vinyl suction line accessory kit (required or 1/4" suction lines). . . . . . . . . . . . . . . . . . . . . . 68-3700-006
3/8"
Vinyl suction line accessory kit (required for 3/8" suction line) . . . . . . . . . . . . . . . . . . . . . . 68-3700-007
B.3 Power Sources
Nickel-cadmium battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-1684-040
Lead-acid battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-3004-106
AC power converter/battery charger, 120 VAC, 50/60 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-1684-088
AC power converter/battery charger, 240 VAC, 50/60 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-1684-093
Battery charger only, 120 VAC, 50/60 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-3004-059
Model 965 Five Station Battery Charger, 120/240V, with 120V power cord . . . . . . . . . . . . . 68-3000-965
Model 965 Five Station Battery Charger, 120/240V, with 240V power cord . . . . . . . . . . . . . 68-3000-966
Connect cable, for external 12 VDC power source; terminates in heavy-duty battery clips . . 60-1394-023
B.4 Interfacing
Equipment
1640 Liquid Level Actuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-1644-000
Extra Instruction Manual, 1640 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60-1644-009
Sampler to Flow Meter Connect Cable, 6 Conductor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-3004-107
Connector only, without cable, for non-Isco flow meters having an isolated
contact closure proportional to flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-1680-060
Same as above, with 22' cable terminating in two wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-1394-077
2100 Series Sampler Interface Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-2004-260
4-20 mA Sampler Input Interface (converts analog signal flow meter output
as specified by user into pulses acceptable to Isco samplers) . . . . . . . . . . . . . . . . . . . . . . . . . . 60-3704-037
Samplink Sampler Interrogation Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-3774-013
Interrogator communications line kit - 9 pin (connects laptop computer with
9 pin serial port to sampler) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-3770-001
Interrogator communications line kit - 25 pin (connects laptop computer with
25 pin serial port to sampler) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-3770-002
B.5 Bottle Conversion Kits
Conversion kits include mounting hardware and instructions. Bottles are ordered separately.
24 to 8 Bottle Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-3704-051
24 to 2 Bottle Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-3704-052
8 to 24 Bottle Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-3704-049
8 to 2 Bottle Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-3704-050
2 to 24 Bottle Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-3704-048
2 to 8 Bottle Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-3704-047
B.6 Bottles
B.6.1 24 Bottle Sampling
1000 ml wedge-shaped polypropylene bottles,
set of 24, with polyethylene foam lined caps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-2100-007
B-2
3700R/3740 Refrigerated Sampler
Appendix B Accessories
1000 ml wedge-shaped polypropylene bottles,
qty of 100, with polyethylene foam lined caps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-3700-046
350 ml round glass bottles, set of 24, includes Teflon lined caps . . . . . . . . . . . . . . . . . . . . . . . 68-2100-001
350 ml round glass bottles, qty of 100, includes Teflon lined caps . . . . . . . . . . . . . . . . . . . . . . 68-3700-048
B.6.2 8 Bottle Sampling
2 liter round polyethylene bottles, set of 8, with caps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-2740-026
2 liter round polyethylene bottles, qty of 100, with caps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-3720-028
1.8 liter round glass bottles, set of 8, with caps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-2740-027
1.8 liter round glass bottles, qty of 100, with caps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-3720-030
B.6.3 2 Bottle and Single
Bottle Sampling
9400 ml (2.5 gallon) round polyethylene bottle with 2 caps . . . . . . . . . . . . . . . . . . . . . . . . . . .68-2740-009
9400 ml (2.5 gallon) round glass bottle with 2 caps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-2930-006
4 gal round polyethylene bottle for single-bottle sampling.
Call for installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-2930-004
5.5 gal round polyethylene bottle for single-bottle sampling.
Call for installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68-2930-005
B-3
3700R/3740 Refrigerated Sampler
Appendix B Accessories
B-4
3700R/3740 Refrigerated Sampler
Appendix C Display Index
Note
To access the display number, press the STOP key while the
sampler displays the screen in question. The display numbers
are available in the Standby and Program states.
1
2
20
4
3
20
20
5
20
6
20
7
20
6 intervals of 20 minutes
9
8
30
30
30
12
11
10
30
30
13
30
14
30
9 intervals of 30 minutes
Start Time
15
30
16
30
17
18
19 Event
No.
45 Interval
45
45
3 intervals of
45 minutes
Figure C-1 Time Line
Table C-1 Display Index
This display appears after you press the ENTER/PROGRAM key while in standby. Select “PROGRAM” to access the
program sequence. Select “CONFIGURE” to access the configure sequence.
Display 1
[PROGRAM, CONFIGURE]
SAMPLER
This informational display appears when you stop the pump with the STOP key after pressing the PUMP FORWARD key.
It reports the number of pump counts detected while the pump was in operation. Exit this display by pressing any key
except STOP and ON/OFF.
Display 3
----- COUNTS FORWARD
This informational display appears when you stop the pump with the STOP key after having pressed the PUMP
REVERSE key. It reports the number of pump counts detected while the pump was in operation. Exit this display by
pressing any key except STOP and ON/OFF.
Display 3
----- COUNTS REVERSE
This display appears after you select “PROGRAM” in Display #1. Select “TIME” for time-paced sampling, “FLOW” for
flow-paced sampling.
Display 10
[TIME, FLOW]
PACED SAMPLING
C-1
3700R/3740 Refrigerated Sampler
Appendix C Display Index
Table C-1 Display Index (Continued)
This display appears only in the extended programming mode and follows Display #10 when you have selected
“TIME.” Select “UNIFORM” for uniform time intervals, “NONUNIFORM” for nonuniform time intervals.
Display11
[UNIFORM, NONUNIFORM]
TIME INTERVALS
This display appears after you select “PROGRAM” in Display #1. It appears only when the sampler is configured for
the extended programming mode and for 4, 12, or 24 bottles with the 3700 Portable, and 12 or 24 bottles with the
3700 Compact. Select “TIME” for time-paced sampling. Select “FLOW” for flow-paced sampling, and “STORM” for
storm sampling.
Display 12
[TIME, FLOW, STORM]
PACED SAMPLING
This display appears after you select “STORM” in Display #12. Use to select time- or flow-pacing for the second bottle
group of a storm routine. Select “TIME” for time-pacing or “FLOW” for flow-pacing
Display14
[TIME, FLOW]
SECOND BOTTLE GROUP
This display appears after you select “STORM” in Display #12. Enter the amount of time between the sampler’s
enabling and the first sample event for the first bottle group occurs.
Display 15
___ MINUTE DELAY TO
FIRST GROUP SAMPLE
This display is the first input display of the flow segment of a storm program. Select “DURING” to collect samples for
the first and second bottle groups concurrently. Select “AFTER” to collect samples for the second bottle group after
the sampler has filled the first bottle group.
Display 16
[DURING, AFTER]
FIRST GROUP
This display appears after you select “STORM” in Display #12. Enter the amount of time between the time the sampler is enabled and the first sample event for the second bottle group.
Display 17
___ MINUTE DELAY TO
SECOND GROUP SAMPLE
This display follows Display #11 when you have selected “NONUNIFORM.” Select “YES” to modify the existing nonuniform intervals. Select “NO” to leave the nonuniform intervals unchanged.
Display 20
MODIFY SEQUENCE?
[YES, NO]
In the basic programming mode, this display appears after you have selected “TIME” in Display #10. In the extended
programming mode, this display appears when you have selected “UNIFORM” in Display #11. Enter the uniform time
interval. You need to make 2 entries: The first entry sets the hours, the second sets the minutes.
Display 21
SAMPLE EVERY
-- HOURS -- MINUTES
This display follows Display #10 when you have selected “FLOW.” Enter the flow-pulse interval.
Display 22
SAMPLE EVERY
---- PULSES (1 - 9999)
This display follows Display #15. Use this display to enter the number of timed sample events in a storm program.
Display 23
TAKE -- TIMED
SAMPLE EVENTS (1 - MAX)
This display follows Display #23. Enter the time interval between time-paced sample events in a storm program.
Display 24
C-2
SAMPLE INTERVALS OF
-- MINUTES (1 - 99)
3700R/3740 Refrigerated Sampler
Appendix C Display Index
Table C-1 Display Index (Continued)
This display follows Display #20 when you select “YES” to modify the nonuniform time-interval sequence. Enter the
number of sample events to occur at nonuniform time intervals. MAX varies according to the bottle size entered in
Display #223
Display 25
TAKE --- SAMPLES
(1 - MAX)
This display follows Display #25. Enter the nonuniform clock times and dates for each sample event.
Display 26
TAKE SAMPLES AT
1.
HH:MM
DD-MMM
Enter the number of samples to be taken at each interval. The total quantity you enter will be 1 fewer than the total
number of samples, because the first sample, taken at the start time, counts as 1. For example, if you want to take 19
samples (the first 6 at 20-minute intervals, the next 9 at 30-minute intervals, and the remaining 3 at 45-minute intervals), first enter a quantity of 6 at 20 minutes, 9 at 30 minutes, and 3 at 45 minutes. Figure C-1 shows a time line for
the sampling routine.
Display 27
QUANTITY AT INTERVAL
1. -- AT --- MINUTES
This display appears for samplers configured for 2, 8, and 24 bottles (Display #s 221 or 222) with the 3700 Portable or
24 for the 3700 Compact (Display #22X). It does not appear for samplers configured for a single bottle. In the basic
programming mode, it follows Display #36. In the extended programming mode, it follows one of the four sample-interval entry displays (Display #s 21, 22, 26, 27). Enter the number of bottles to receive a sample volume at each sample
event.
Display 30
-- BOTTLES PER
SAMPLE EVENT (1 - MAX)
In the basic programming mode, this display appears when you have selected “SAMPLES PER BOTTLE” in Display
#36. In the extended programming mode, it appears when the sampler is configured for 2, 8, or 24 bottles and there is
only one bottle set. Enter the number of samples you want deposited in each bottle.
Display 31
-- SAMPLES PER
BOTTLE (1 - MAX)
Select “YES” if you want the routine to perform bottles-per-sample or samples-per-bottle multiplexing. Select “NO” if
you want the routine to perform sequential sampling.
Display 35
MULTIPLEX SAMPLES?
[YES, NO]
This display appears when you have selected “YES” in Display #35. Select “BOTTLES PER SAMPLE” if you want the
sampler to perform bottles-per-sample multiplexing. Select “SAMPLES PER BOTTLE” if you want the sampler to perform samples-per-bottle multiplexing.
Display 36
[BOTTLES PER SAMPLE,
SAMPLES PER BOTTLE]
This display appears only in the extended programming mode when you have set the number of bottles per sample
event to “1” in Display #30. Select “TIME” if you want the bottles to be switched after a specified period of time. Select
“SAMPLES” if you want the bottles to be switched after a specified number of samples have been placed in a bottle.
We recommend using “SAMPLES” for time-paced sampling routines.
Display 40
CHANGE BOTTLES BASED
ON [TIME, SAMPLES]
This display appears when the number of bottles per sample event is set to a number greater than one and less than
half the number of bottles in the tub. Select “TIME” to switch bottle sets after a specified period of time. Select “SAMPLES/BTL” to switch bottle sets after a specified number of samples have been placed in a set of bottles. Teledyne
Isco recommends using “SAMPLES/BTL” for time-paced sampling routines.
Display 41
CHANGE SETS BASED
ON [TIME, SAMPLES/BTL]
C-3
3700R/3740 Refrigerated Sampler
Appendix C Display Index
Table C-1 Display Index (Continued)
This display appears if you select “TIME” in Display #40. Enter the amount of time each bottle is to receive samples.
Display 42
CHANGE BOTTLES EVERY
-- HOURS -- MINUTES
This display appears if you select “TIME” in Display #41. Enter the amount of time each bottle set receives samples.
Display 43
CHANGE SETS EVERY
-- HOURS -- MINUTES
This display appears after you select “SAMPLES” in Display #40. Enter the number of samples each bottle receives.
Display 44
CHANGE BOTTLES EVERY
-- SAMPLES
This display appears after you select “SAMPLES/BTL” in Display #41. Enter the number of samples each bottle set is
to receive.
Display 45
CHANGE SETS EVERY
-- SAMPLES
This display appears when you select “yes”” in Display #95. Enter the time of the first bottle switch. The remaining
bottle changes will occur according to settings entered in Display #42. The display will also appear if you have started
the routine after the programmed switch time.
Display 46
FIRST BOTTLE CHANGE
AT HH:MM MM/DD
This display appears when you select “YES” in Display #95. Enter the time of the first-bottle set switch. The remaining
bottle-set changes will occur according to settings entered in Display #43. The display will also appear if you start the
routine after the programmed switch time.
Display 47
FIRST SET CHANGE AT
HH:MM MM/DD
This display appears when the sampler is configured for 2-, 4-, 8-, 12-, or 24- bottle configurations under uniform time,
flow, or nonuniform time modes of sample pacing. Select “YES” to sample continuously. Select “NO” to stop the sampling routine after the last set of bottles has been filled.
Display 48
SAMPLE CONTINUOUSLY?
[YES, NO]
Enter the size of the sample volume. MAX will vary according to the number of samples per bottle and bottle size.
Display 50
SAMPLE VOLUMES OF
--- ml EACH (10 - MAX )
This display appears when you have configured the controller for composite sampling by selecting “1” in Display #221
or #222. Enter the number of composite samples. An entry of “0” instructs the sampler to take samples until a float
shut-off terminates the sampling routine.
Display 60
--- COMPOSITE
SAMPLES (0 - MAX)
This display appears when you select “YES” in Display #242 or select “DISABLE” in Display #240. Enter the measured suction head. MAX will be the smaller of the suction line length or “20.”
Display 70
SUCTION HEAD OF
-- FEET (1 - MAX)
This display appears in the program sequence when you have selected “ENABLE” in Display #290. Select “YES” to
use the calibration sequence, “NO” to omit the calibration sequence.
Display 80
C-4
CALIBRATE SAMPLE
VOLUME? [YES, NO]
3700R/3740 Refrigerated Sampler
Appendix C Display Index
Table C-1 Display Index (Continued)
This display is part of the calibration sequence. Press the MANUAL SAMPLE key when a collection bottle is underneath
the distributor and the suction line is in place.
Display 81
PRESS MANUAL SAMPLE
KEY WHEN READY...
This display is part of the calibration sequence. When it first appears, it reports the programmed sample volume. If
the measured volume differs from the reported volume, enter the measured volume here.
Display 82
--- ml VOLUME
DELIVERED
This display is part of the calibration sequence and appears if the measured volume and the programmed volume differ by a factor of two or more. Select “YES” to confirm the number entered in Display #82. Select “NO” to return to
Display #82.
Display 83
---ml! ARE YOU
SURE? [YES, NO]
Select “YES” to enter a start time. “NO” will begin the sampling routine according to the delay set in Display #310.
Display 90
ENTER START TIME?
[YES, NO]
This display appears when you have selected “YES” in Display #90. Enter the start time and date for the first sample
event. This display will also appear if you have initiated the routine after a programmed start time so that you can
reprogram the start time.
Display 91
TAKE FIRST SAMPLE AT
HH:MM DD-MMM
This display appears when you have selected “YES” in Display #90. Enter the start time and date for the flow -pulse
countdown. This display will also appear if you have initiated the routine after a programmed start time so that you
can reprogram the start time.
Display 92
START FLOW COUNT AT
HH:MM DD-MM
This display is the last display of the storm branch. It appears when you select “YES” in Display #90. Enter the start
time for the storm-sampling routine. The sampler will disregard enable or disable signals from the flow meter until the
start time you enter here.
Display 93
STORM ENABLED AFTER
HH:MM
DD-MM
This display appears when you have selected “TIME” in either Display #40 or 41. Select “YES” if you want to specify
a clock time for the first bottle or bottle set switch. Select “NO” if you want to begin the switch interval at the routine's
start time.
Display 95
ENTER FIRST SWITCH
TIME? [YES, NO]
This display appears when you select “ENABLE” in Display #300. Enter the number of stop and resume times.
Display 100
-- STOP or RESUME
TIMES (0 - 24)
This display appears when the setting in Display #100 is greater than zero. Enter the appropriate stop time.
Display 101
STOP SAMPLING AT
1.HH:MMDD-MMM
This display appears when the setting in Display #100 is greater than one. It follows Display #101. Enter the appropriate resume time.
Display 102
RESUME SAMPLING AT
1.HH:MMDD-MMM
C-5
3700R/3740 Refrigerated Sampler
Appendix C Display Index
Table C-1 Display Index (Continued)
This display follows Display #22. Enter the maximum amount of time you want between flow-paced sample events in
a storm program. If the time between flow pulses exceeds this entry, the sampler will terminate the routine.
Display 110
MAX FLOW INTERVAL OF
-- HOURS, -- MINUTES
This display appears when a routine is halted and you press the start sampling key. Select “START” to start the sampling program at the beginning, “RESUME” to continue the sampling program at the point at which it was halted.
Display 142
CHANGE START TIME?
[YES, NO]
This display appears when you have started a routine after the programmed first switch time. Select “YES” to enter a
new switch time. Selecting “NO” will switch one bottle set and start the routine immediately.
Display 143
CHANGE SWITCH TIME?
[YES, NO]
This display appears after you press the display status key. Select “REVIEW” to view the summary of the current program settings and for sampling results. Select “PRINT” to send the current status, program settings, and sampling
results to an Isco Field Printer. NOTE: The Teledyne Isco Field Printer is no longer sold, but this function remains
available for customers who still have Field Printers. The printed results include data for sample events completed
when you pressed the display status key.
Display 148
[REVIEW, PRINT] PROGRAM
INFORMATION
This display appears after you select “Print” in Display #148. Select “NO” to return to standby. Select “Settings” to
print the settings report. Select “RESULTS” to print the results report.
Display 149
PRINT PROGRAM [NO,
SETTINGS, RESULTS]
This display appears after you select “REVIEW” in Display #148. Select “NO” to return to the previous operating state.
Select “SETTINGS” to view the summary of the current program settings. Select “RESULTS” to view the sampling
results for sample events completed at the time you pressed the display status key.
Display 150
REVIEW PROGRAM [NO,
SETTINGS, RESULTS]
Display #151 is used to identify the displays used to summarize the current program settings which appear when you
select “SETTINGS” in Display #150.
Display 151
SETTINGS DISPLAYS
Display #152 identifies sampling results displays that appear when you select “RESULTS” in Display #150.
Display 152
RESULTS DISPLAYS
Display #200 is used to identify the displays, which locate each configure option in the configure sequence. Press
ENTER/PROGRAM to access the input displays for each option. Use the LEFT ARROW and the RIGHT ARROW keys to
move through the options.
Display 200
SELECT OPTION (← → )
name of configure option
Set Clock configure option. Enter the time and date to set the controller's clock. Use military time. Enter two digits
each for the day (DD), month (MM), and year (YY).
Display 210
HH:MM DD/MM/YY
HH:MM DD/MM/YY
Bottles and Sizes configure option. Select “PORTABLE” when you are using a 3700 Compact or Standard Sampler.
Select REFRIG only if you have a refrigerated base unit.
Display 220
C-6
[PORTABLE, REFRIG]
SAMPLER
3700R/3740 Refrigerated Sampler
Appendix C Display Index
Table C-1 Display Index (Continued)
Bottles and Sizes configure option. This display appears when you select “PORTABLE” in Display #220. Select the
number of bottles in the bottle base.
Display 221
[1, 4, 12, 24]
BOTTLES
Bottles and Sizes configure option. This display appears when you select “REFRIG” in Display #220. Select the number of bottles in the base.
Display 222
[1, 2, 4, 8, 12, 24]
BOTTLES
Bottles and Sizes configure option. Enter the bottle volume in milliliters.
Display 223
BOTTLE VOLUME IS
----- ml
Bottles and Sizes configure option. This display appears when you have entered a bottle volume in Display #223 that
exceeds a standard Teledyne Isco bottle size.
Display 224
---- ml ... ARE YOU
SURE? [YES, NO]
Suction Line configure option. Select “ 1/4” if you are using 1/4-inch suction line, “ 3/8” if you are using 3/8-inch suction
line.
Display 230
SUCTION LINE ID IS
[1/4, 3/8] INCH
Suction Line configure option. This display appears when you have selected “ 3/8” in Display #230. Select “VINYL” if
you are using vinyl suction line, “TEFLON” if you are using Teflon suction line.
Display 231
SUCTION LINE IS
[VINYL, TEFLON]
Suction Line configure option. Enter the length of the suction line. Do not include the tube coupling or the strainer in
the length measurement.
Display 232
SUCTION LINE LENGTH
IS -- FEET (3 - 99)
Liquid Detector configure option. Select “ENABLE” to turn on the Liquid Detector, “DISABLE” to turn off the Liquid
Detector. If you turn off the detector, you must enter the suction head (Display #70) in the program sequence.
Display 240
[ENABLE, DISABLE]
LIQUID DETECTOR
Liquid Detector configure option. This display appears when you select “ENABLE” in Display #240. Enter the number
of rinse cycles. Rinse cycles condition the suction line to reduce cross-contamination.
Display 241
RINSE CYCLES (0 - 3)
Liquid Detector configure option. This display appears when you select “ENABLE” in Display #240. Select “YES” to
add the suction-head setting (Display #70) to the program sequence. Select “NO” to omit the setting.
Display 242
ENTER HEAD MANUALLY?
[YES, NO]
Liquid Detector configure option. This display appears when you select “ENABLE” in Display #240. Enter the number
of retries: the number of times the sampler will try to detect the presence of liquid for each sample event.
Display 243
RETRY UP TO - TIMES
WHEN SAMPLING (0 - 3)
Programming Mode configure option. Select “BASIC” to use the basic programming mode. To use the extended programming mode, select “EXTENDED.”
Display 250
[BASIC, EXTENDED]
PROGRAMMING MODE
C-7
3700R/3740 Refrigerated Sampler
Appendix C Display Index
Table C-1 Display Index (Continued)
Load Stored Program configure option. Select the sampling program you want to use. Select “NONE” to exit the display without loading a program.
Display 255
LOAD PROGRAM
[#1, #2, #3, NONE]
Save Current Program configure option. Select the number with which you want to use to identify the current program
when saved. Select “NONE” to exit the display without saving a program.
Display 260
SAVE PROGRAM AS
[#1, #2, #3, NONE]
Flow Mode Sampling configure option. This setting affects flow-paced sampling routines. Select “YES” to take the first
sample at the start time, “NO” to take the first sample at the end of the first flow-pulse interval.
Display 270
TAKE SAMPLE AT START
TIME? [YES, NO]
Flow Mode Sampling configure option. This setting affects flow-paced, time-switched sampling routines only. Select
“YES” to take a sample at switch times. Select “NO” if you do not want a sample event at the switch times.
Display 271
TAKE SAMPLE AT TIME
SWITCH? [YES, NO]
Nonuniform Time configure option. Select “CLOCK TIME” to enter the nonuniform time intervals as clock times (Display #26). Select “MINUTES” to set the nonuniform intervals in minutes (Display #27).
Display 280
ENTER INTERVALS IN
[CLOCK TIME, MINUTES]
Calibrate Sampler configure option. Select “ENABLE” to add calibration displays to the program sequence. Select
“DISABLE” to omit the calibration displays.
Display 290
[ENABLE, DISABLE]
CALIBRATE SAMPLE
Sampling Stop/Resume configure option. Select “ENABLE” to add the Sampling Stop/Resume settings to the program sequence. Select “DISABLE” to omit the settings.
Display 300
[ENABLE, DISABLE]
SAMPLING STOP/RESUME
Sampling Stop/Resume configure option. This display appears when you select “ENABLE” in Display #300. Select
“YES” to take a sample at stop times. Select “NO” if you do not want a sample event at the stop times.
Display 301
SAMPLE AT STOP?
[YES, NO]
Sampling Stop/Resume configure option. This display appears when you select “ENABLE” in Display #300. Select
“YES” to take a sample at the resume times. Select “NO” if you do not want a sample event at the resume times.
Display 302
SAMPLE AT RESUME?
[YES, NO]
Start Time Delay configure option. Enter the amount of time, in minutes, you want to delay the start time. This entry
affects programs that do not have a programmed start time.
Display 310
---- MINUTE DELAY
TO START (0 - 9999)
Enable Pin configure option. Select “YES” to take a sample at the time the sampler becomes disabled. Select “NO” if
you do not want a sample event when the sampler becomes disabled.
Display 321
C-8
SAMPLE UPON DISABLE?
[YES, NO]
3700R/3740 Refrigerated Sampler
Appendix C Display Index
Table C-1 Display Index (Continued)
Enable Pin configure option. Select “YES” to take a sample when the sampler becomes enabled; i.e., ceases to
receive an inhibit signal from a flow meter or a Liquid Level Actuator. Note: No sample will be taken if the enable signal is used to initiate the start-time delay countdown. Select “NO” if you do not want a sample event when the sampler
becomes enabled.
Display 322
SAMPLE UPON ENABLE?
[YES, NO]
Enable Pin configure option. Select “YES” to restart the sample interval countdown at the time the sampler is
enabled. The interval countdown is determined by the setting if “NO” is selected in Display #324.
Display 323
RESET SAMPLE
INTERVAL? [YES, NO]
Enable Pin configure option. This display appears if you select “NO” in Display #323. Select “YES” to freeze the sample interval when the sampler becomes disabled. When the sampler is enabled, the interval countdown continues
from the point where it had stopped. Select “NO” to let the sample interval countdown continue while the sampler is
disabled.
Display 324
INHIBIT COUNTDOWN?
[YES, NO]
Event Mark configure option. Select “CONTINUOUS SIGNAL” to send a variable-duration event mark signal from pin
E of the flow meter connector. Select “PULSE” to send a 3-second event mark signal.
Display 330
[CONTINUOUS SIGNAL,
PULSE]
Event Mark configure option. This setting appears when you select “CONTINUOUS SIGNAL” in Display #330. Select
“PUMP CYCLE” to transmit the event mark signal during the entire pump cycle, including any programmed rinses and
retries. Select “FWD PUMPING ONLY” to send the signal when the pump is delivering a sample volume only.
Display 331
DURING [PUMP CYCLE,
FWD PUMPING ONLY]
Event Mark configure option. This setting appears when you select “PULSE” in Display #330. Select “PURGE” to
transmit an event mark signal to a flow meter at the beginning of the pre-sample purge. Select “FWD PUMPING” to
transmit a signal when the pump switches forward to deliver the sample volume.
Display 332
AT THE BEGINNING OF
[PURGE, FWD PUMPING]
Purge Counts configure option. Enter the number of pre-sample pump counts needed to purge the suction line. This
value is set to 150 when the controller is reinitialized.
Display 340
--- PRE-SAMPLE
COUNTS (0 - 9999)
Purge Counts configure option. Enter the number of post-sample pump counts needed to purge the suction line. The
Controller derives the number that initially appears in this display from the suction line ID and length entered in Display #230 and #232.
Display 341
--- POST-SAMPLE
COUNTS (0 - 9999)
Tubing Life configure option. This informational display communicates the pump counts elapsed since the last reset
and the counts required to trigger the Pump Tubing Warning. Exit this display by pressing any key.
Display 350
------ PUMP COUNTS,
WARNING AT ------
Tubing Life configure option. After changing the pump tube, select “YES” to reset the pump counter to zero. Select
“NO” to leave the counter unchanged.
Display 351
--- POST-SAMPLE
COUNTS (0 - 9999)
C-9
3700R/3740 Refrigerated Sampler
Appendix C Display Index
Table C-1 Display Index (Continued)
Tubing Life configure option. Enter the number of pump counts required to trigger the pump-count warning if the factory setting is not suitable. This value is set to 500,000 when the controller is reinitialized.
Display 352
------ PUMP COUNTS
TO WARNING
Program Lock configure option. Select “ENABLE” to turn on the program lock. If you enable the program lock, input
displays are protected by a pass-number: 3700. The controller will not allow you to make any changes to a program
or configure sequence setting until you enter the pass-number when requested. Select “DISABLE” to turn the program lock off.
Display 360
[ENABLE, DISABLE]
PROGRAM LOCK
Sampler ID configure option. Enter the sampler identification here. The sampler will accept as many as 10 characters,
including periods (press resume sampling), dashes (press manual sample), and spaces (press start sampling).
Display 365
SAMPLER ID NUMBER IS
----------
Run Diagnostics configure option. Select “YES” to run the distributor test. Select “NO” to skip the test. Test the distributor by moving it to Position 24 then back to Position 1.
Display 370
TEST DISTRIBUTOR?
[YES, NO]
Run Diagnostics configure option. Select “YES” to “reinitialize” (reset) the controller: the entire RAM – with the exception of the configure option settings for current pump-count total, number of bottles, bottle size, suction-line length,
and sampler ID – will be reset to factory settings. Select “NO” the leave the settings unchanged.
Display 371
C-10
RE-INITIALIZE?
[YES, NO]
3700R/3740 Refrigerated Sampler
Appendix D Calculating Flow Increment Between
Samples
The 3700R Sampler will accept flow-proportional inputs from an
external flow meter or flow logger. These electronic flow-input
signals are transmitted to the sampler at fixed increments of
total flow, for example, every 10,000 gallons. Each time 10,000
gallons of liquid flows past the flow meter, it sends a signal to the
sampler, which registers it as a single flow pulse. You can
program the sampler to totalize any number of flow pulses from 1
to 9,999 before initiating a sampling event. For example, if the
sampler were programmed to totalize 5 flow pulses and each flow
pulse represented 10,000 gallons of total flow, a sample would be
collected each time 50,000 gallons (5 flow pulses of 10,000 gallons
each) had passed the flow meter.
Time Interval Known – If the desired average time interval
between individual samples is known, the flow increment
between samples can be determined by calculating how much
flow (based on the average flow rate) occurs during that time
interval. For example, assume that the average flow is 2.5 MGD
and it is desired to collect a sample every 30 minutes. The flow
increment between samples is calculated:
2.5 MGD = 2,500,000 GAL/DAY
2,500,000 GAL/DAY X 1 DAY/24 HR X 1 HR/60 MIN = 1736 GAL/MIN
736 GAL/MIN X 30 MIN/SAMPLE = 52,080 GAL/SAMPLE
Thus, the desired flow increment between samples is approximately 52,000 gallons.
Number of Samples Known – A l t e r n a t i v e l y, i f t h e t o t a l
number of samples to be collected over the total sampling period
is known, the flow increment between samples can be determined by calculating how much total flow will occur during the
sampling period, and dividing this by the total number of
samples to be collected. For example, assume that the average
flow is 1.75 MGD, that the composite sampling period is 2 days,
and that it is desired to collect 100 individual samples. The flow
increment between samples is calculated:
1.75 MGD = 1,750,000 GAL/DAY
1,750,000 GAL/DAY X 2 DAYS = 3,500,000 GAL
3,500,000 GAL ÷ 100 SAMPLES = 35,000 GAL/SAMPLE
Thus, the desired flow increment between samples is approximately 35,000 gallons.
D-1
3700R/3740 Refrigerated Sampler
Appendix D Calculating Flow Increment Between Samples
Calculation of Number of Flow Pulses – O n c e t h e d e s i r e d
flow increment between samples is known, the number of flow
pulses to be programmed into the sampler may be calculated,
assuming that the volume of the flow pulses from the flow meter
is known. The number of flow pulses is calculated by dividing the
flow increment between samples by the volume of each flow
pulse. Using the first example above, the flow increment between
samples was calculated as 52,000 gallons; assume that each flow
pulse represents 10,000 gallons of flow. The number of flow
pulses to be programmed into the sampler is calculated:
52,000 GAL ÷ 10,000 GAL/FLOW PULSE = 5.2 FLOW PULSES
Rounding this to an even number results in 5 flow pulses to be
programmed into the sampler. This in turn results in a flow
increment between samples of 50,000 gallons (5 flow pulses ×
10,000 gallons/flow pulse).
Total Number Of Samples – To calculate the total number of
samples to be collected, three quantities must be known: the
average flow rate, the flow increment between samples (calculated above), and the total time over which the composite sample
is to be collected. The total number of samples to be collected is
determined by first calculating the total flow volume over the
sampling period, and then dividing this by the flow increment
between samples. For example, assume that the average flow is
2.5 MGD, the flow increment between samples is 50,000 gallons,
and the composite sample is to be collected over a 24 hour period.
The total flow volume over a 24 hour period is:
2.5 MGD = 2,500,000 GAL/DAY
2,500,000 GAL/DAY X 1 DAY = 2,500,000 GAL
The total number of samples to be collected in this 24 hour period
is then calculated:
2,500,000 GAL ÷ 50,000 GAL/SAMPLES = 50 SAMPLES
Thus, based on an average flow of 2.5 MGD, 50 samples will be
collected.
Calculation of Sample Volume – To calculate the volume of
each individual sample, the volume of the composite sample container being used and the total number of samples to be collected
(calculated above) must be known. The individual sample volume
is calculated by simply dividing the volume of the composite
sample container being used by the total number of samples to be
collected. For example, assume that a 2.5 gallon (9,400 ml)
plastic container is being used, and that a total of 50 samples are
to be collected in it. The individual sample volume is then calculated:
9400 ML ÷ 50 SAMPLES = 188 ML
D-2
3700R/3740 Refrigerated Sampler
Appendix D Calculating Flow Increment Between Samples
Sample Volume Considerations – Thus, a sample volume of
188 ml will result in the desired composite sample. Because of
the basic uncertainty of the delivered sample volume exactly
matching the programmed nominal sample volume and the 10 ml
sample repeatability, it is good practice to select a nominal
sample volume which is slightly smaller than the calculated
sample volume. This is to prevent overfilling of the sample container. In the example, an individual nominal sample volume of
125 ml might be a prudent choice. For critical applications, calibration of the sample volume can be used. It is important to
select an individual sample volume which will not result in an
overfilled sample container under worst-case conditions.
The nominal volume of the composite sample may be calculated
by multiplying the programmed nominal sample volume by the
total number of samples to be collected. In the example:
125 ML/SAMPLE X 50 SAMPLES = 6,250 ML
This calculated total volume may vary from the actual total
volume because of variations in the actual volume of each individual sample. The total time needed to collect the 50 individual
samples may vary from the desired 24 hour period because of
variations in the average flow rate from the 2.5 MGD figure used
in these calculations.
D-3
3700R/3740 Refrigerated Sampler
Appendix D Calculating Flow Increment Between Samples
D-4
3700R/3740 Refrigerated Sampler
Appendix E Glossary
Bottles per sample – Bottles per sample is the number of
bottles receiving sample volumes at each sample event.
Composite sampling – In composite sampling, multiple sample
volumes are placed in bottle sets. Typically, composite sampling
uses a single container. A composite sample represents an
average of the characteristics of the flow stream for the elapsed
time of sampling.
Controller – The controller, housed within the molded control
box, is a collection of electronic components, which govern the
actions of the sampler. It includes the microprocessor, RAM
(Random Access Memory), ROM (Read Only Memory) and its
imbedded software, the LCD (Liquid Crystal Display), and the
keypad.
Cross contamination – Cross contamination occurs when portions of previous samples are mixed with the current sample. For
example, cross contamination results when residual amounts of
sample remain in the suction line or pump tube from a previous
sample event.
Event mark – An event mark is a signal that the sampler sends
to a flow meter or other device a each sample event. Each time
the flow meter receives an event mark pulse, the flow meter
places a mark on the its recording chart. Marking the recording
chart cross-references the charted flow with the sample events.
Multiplexing – There are two types of multiplexing: samples
per bottle and bottles per sample. In samples per bottle multiplexing, a bottle receives samples from more than one sample
event. In bottles per sample multiplexing, equal sample volumes
are placed in more than one bottle at each sample event.
Post-sample purge – Post-sample purge refers to the suction
line purge that follows the delivery of the sample volume(s). It is
also called post-purge.
Pre-sample purge – Pre-sample purge refers to the suction line
purge that precedes the delivery of the sample volume(s). It is
also called pre- purge.
Real-time clock – A real-time clock can be set to the actual time
and date.
Sample event – A sample event consists of the complete sampling cycle resulting in the collection and distribution of one or
more equal sample volumes. A sample event includes pre-sample
and post-sample purges, line rinses, liquid detection retries, and
deliveries of sample volumes. No more than one sample volume is
placed in any one bottle during a sample event.
E-1
3700R/3740 Refrigerated Sampler
Appendix E Glossary
Sample volume – The sample volume is the discrete, programmed amount of sample delivered to each bottle. A single
sample event may deliver several sample volumes.
Samples per bottle – Samples per bottle is the number of discrete sample volumes placed in each bottle.
Sampling program – See sampling routine.
Sampling routine – A sampling routine, also called a sampling
program, is the process of taking samples according to the
program settings you enter when programming and configuring
the controller. The program settings define the sample pacing,
distribution, volume, and key clock times.
Selection – A selection is represented by a blinking word or
number in an input display. The blinking selection indicates the
current choice or value. Selections are accepted and stored by
pressing the enter/program key.
Suction head – Suction head is the vertical distance from the
surface of the flow stream to the pump inlet.
E-2
3700R/3740 Refrigerated Sampler
Appendix F Material Safety Data Sheets
This appendix provides Material Safety Data sheets for the
internal desiccant used in the 3700R sampler.
Specific questions regarding the use and handling of these
products should be directed to the manufacturer listed in the
MSDS.
F-1
3700R/3740 Refrigerated Sampler
Appendix F Material Safety Data Sheets
101 Christine Drive
Belen, New Mexico 87002
Phone: (505) 864-6691
Fax: (505) 861-2355
ISO 9002
MATERIAL SAFETY DATA SHEET -- September 28, 1998
SORB-IT®
Packaged Desiccant
SECTION I -- PRODUCT IDENTIFICATION
Trade Name and Synonyms:
Chemical Family:
Formula:
Silica Gel, Synthetic Amorphous Silica,
Silicon, Dioxide
Synthetic Amorphous Silica
SiO2.x H2O
SECTION II -- HAZARDOUS INGREDIENTS
COMPONENT
Amorphous
Silica
Components in the Solid Mixture
CAS No
%
ACGIH/TLV (PPM)
OSHA-(PEL)
63231-67-4
>99
PEL - 20 (RESPIRABLE), LIMIT – NONE,
TLV – 5
HAZARD IRRITANT
˝
Synthetic amorphous silica is not to be confused with crystalline silica such as quartz,
cristobalite or tridymite or with diatomaceous earth or other naturally occurring forms of
amorphous silica that frequently contain crystalline forms.
This product is in granular form and packed in bags for use as a desiccant. Therefore, no
exposure to the product is anticipated under normal use of this product. Avoid inhaling
desiccant dust.
SECTION III -- PHYSICAL DATA
Appearance and Odor:
Melting Point:
Solubility in Water:
Bulk Density:
Percent Volatile by Weight @ 1750 Deg F:
F-2
White granules; odorless.
>1600 Deg C; >2900 Deg F
Insoluble.
>40 lbs./cu. ft.
<10%.
3700R/3740 Refrigerated Sampler
Appendix F Material Safety Data Sheets
101 Christine Drive
Belen, New Mexico 87002
Phone: (505) 864-6691
Fax: (505) 861-2355
ISO 9002
MATERIAL SAFETY DATA SHEET -- September 28, 1998
SORB-IT®
Packaged Desiccant
SECTION IV -- FIRE EXPLOSION DATA
Fire and Explosion Hazard - Negligible fire and explosion hazard when exposed to heat
or flame by reaction with incompatible substances.
Flash Point - Nonflammable.
Firefighting Media - Dry chemical, water spray, or foam. For larger fires, use water spray
fog or foam.
Firefighting - Nonflammable solids, liquids, or gases: Cool containers that are exposed
to flames with water from the side until well after fire is out. For massive fire in enclosed
area, use unmanned hose holder or monitor nozzles; if this is impossible, withdraw from
area and let fire burn. Withdraw immediately in case of rising sound from venting safety
device or any discoloration of the tank due to fire.
SECTION V -- HEALTH HAZARD DATA
Health hazards may arise from inhalation, ingestion, and/or contact with the skin and/or
eyes. Ingestion may result in damage to throat and esophagus and/or gastrointestinal
disorders. Inhalation may cause burning to the upper respiratory tract and/or temporary or
permanent lung damage. Prolonged or repeated contact with the skin, in absence of
proper hygiene, may cause dryness, irritation, and/or dermatitis. Contact with eye tissue
may result in irritation, burns, or conjunctivitis.
First Aid (Inhalation) - Remove to fresh air immediately. If breathing has stopped, give
artificial respiration. Keep affected person warm and at rest. Get medical attention
immediately.
First Aid (Ingestion) - If large amounts have been ingested, give emetics to cause
vomiting. Stomach siphon may be applied as well. Milk and fatty acids should be
avoided. Get medical attention immediately.
First Aid (Eyes) - Wash eyes immediately and carefully for 30 minutes with running water.
F-3
3700R/3740 Refrigerated Sampler
Appendix F Material Safety Data Sheets
101 Christine Drive
Belen, New Mexico 87002
Phone: (505) 864-6691
Fax: (505) 861-2355
ISO 9002
MATERIAL SAFETY DATA SHEET -- September 28, 1998
SORB-IT®
Packaged Desiccant
NOTE TO PHYSICIAN: This product is a desiccant and generates heat as it adsorbs
water. The used product can contain material of hazardous nature. Identify that material
and treat accordingly.
SECTION VI -- REACTIVITY DATA
Reactivity - Silica gel is stable under normal temperatures and pressures in sealed
containers. Moisture can cause a rise in temperature which may result in a burn.
SECTION VII --SPILL OR LEAK PROCEDURES
Notify safety personnel of spills or leaks. Clean-up personnel need protection against
inhalation of dusts or fumes. Eye protection is required. Vacuuming and/or wet methods
of cleanup are preferred. Place in appropriate containers for disposal, keeping airborne
particulates at a minimum.
SECTION VIII -- SPECIAL PROTECTION INFORMATION
Respiratory Protection - Provide a NIOSH/MSHA jointly approved respirator in the
absence of proper environmental control. Contact your safety equipment supplier for
proper mask type.
Ventilation - Provide general and/or local exhaust ventilation to keep exposures below
the TLV. Ventilation used must be designed to prevent spots of dust accumulation or
recycling of dusts.
Protective Clothing - Wear protective clothing, including long sleeves and gloves, to
prevent repeated or prolonged skin contact.
Eye Protection - Chemical splash goggles designed in compliance with OSHA
regulations are recommended. Consult your safety equipment supplier.
F-4
3700R/3740 Refrigerated Sampler
Appendix F Material Safety Data Sheets
101 Christine Drive
Belen, New Mexico 87002
Phone: (505) 864-6691
Fax: (505) 861-2355
ISO 9002
MATERIAL SAFETY DATA SHEET -- September 28, 1998
SORB-IT®
Packaged Desiccant
SECTION IX -- SPECIAL PRECAUTIONS
Avoid breathing dust and prolonged contact with skin. Silica gel dust causes eye irritation
and breathing dust may be harmful.
* No Information Available
HMIS (Hazardous Materials Identification System) for this product is as
follows:
Health Hazard
Flammability
Reactivity
Personal Protection
0
0
0
HMIS assigns choice of personal protective equipment to the
customer, as the raw material supplier is unfamiliar with the
condition of use.
The information contained herein is based upon data considered true and accurate. However, United Desiccants makes no warranties
expressed or implied, as to the accuracy or adequacy of the information contained herein or the results to be obtained from the use
thereof. This information is offered solely for the user's consideration, investigation and verification. Since the use and conditions of
use of this information and the material described herein are not within the control of United Desiccants, United Desiccants assumes no
responsibility for injury to the user or third persons. The material described herein is sold only pursuant to United Desiccants' Terms
and Conditions of Sale, including those limiting warranties and remedies contained therein. It is the responsibility of the user to
determine whether any use of the data and information is in accordance with applicable federal, state or local laws and regulations.
F-5
3700R/3740 Refrigerated Sampler
Appendix F Material Safety Data Sheets
Indicating Silica Gel
Material Safety Data Sheet
Identity (Trade Name as Used on Label)
Manufacturer
:
MSDS Number* :
MULTISORB TECHNOLOGIES, INC.
M75
(formerly Multiform Desiccants, Inc.)
Address:
CAS Number* :
325 Harlem Road
Buffalo, NY 14224
Phone Number (For Information):
716/824-8900
Emergency Phone
716/824-8900
Date Prepared:
July 6, 2000
G.E. McKedy
Prepared By* :
Number:
Section 1 - Material Identification and Information
Components - Chemical Name & Common Names
(Hazardous Components 1% or greater; Carcinogens 0.1% or
greater)
%*
OSHA
PEL
ACGIH
TLV
Silica Gel SiO2
98.0
Cobalt Chloride
>2.0
6mg/m
(total dust)
3
0.05mg/m
(TWA cobalt
metal dust &
fume)
3
3
OTHER LIMITS
RECOMMENDE
D
10mg/m
(total dust)
3
.05mg/m
(Cobalt, TWA)
Non-Hazardous Ingredients
TOTAL
100
Section 2 - Physical/Chemical Characteristics
Boiling
N/A
Point
Vapor Pressure
N/A
(mm Hg and Temperature
Vapor
N/A
Density
(Air =1)
Solubility
Insoluble, but will adsorb moisture.
in Water
Appearance
Purple crystals, no odor.
and Odor
Specific Gravity
(H20 = 1)
Melting
Point
Evaporation Rate
(__________=1)
Water
Reactive
2.1
N/A
N/A
Not reactive, but will adsorb moisture.
Section 3 - Fire and Explosion Hazard Data
Flash Point and
Auto-Ignition
Flammability Limits in
LEL
UEL
N/A
N/A
N/A
Methods Used
Temperature
Air % by Volume
Extinguisher
Dry chemical, carbon dioxide and foam can be used.
Media
Special Fire
Water will generate heat due to the silica gel which will adsorb water and liberate heat.
Fighting Procedures
Unusual Fire and
When exposed to water, the silica gel can get hot enough to reach the boiling point of water. Flooding with
Explosion Hazards
water will reduce the temperature to safe limits.
Section 4 - Reactivity Hazard Data
Conditions
STABILITY
Moisture and high humidity environments.
To Avoid
Stable
Unstable
Incompatibility
Water.
(Materials to Avoid)
Hazardous
Carbon dioxide, carbon monoxide, water
Decomposition
Products
Conditions
HAZARDOUS POLYMERIZATION
None.
To Avoid
May Occur
*Optional
F-6
Indicating Silica Gel
3700R/3740 Refrigerated Sampler
Appendix F Material Safety Data Sheets
Page 2
Section 5 - Health Hazard Data
PRIMARY ROUTES
OF ENTRY
HEALTH HAZARDS
Inhalation
Ingestion
NTP
CARCINOGEN
LISTED IN
Skin Absorption
Not Hazardous
IARC Monograph
Acute
May cause eye, skin and mucous membrane irritation.
Chronic
Prolonged inhalation may cause lung damage.
OSHA
Not Listed
Signs and Symptoms
Drying and irritation.
of Exposure
Medical Conditions
Asthma.
Generally Aggravated by Exposure
EMERGENCY FIRST AID PROCEDURES - Seek medical assistance for further treatment, observation and support if necessary.
Eye Contact Flush with water for at least 15 minutes.
Skin
Wash affected area with soap and water.
Contact
Inhalation
Remove affected person to fresh air.
Ingestion
Drink at least 2 glasses of water.
Section 6 - Control and Protective Measures
Respiratory Protection Use NIOSH approved dust mask or respirator.
(Specify Type)
Protective
Eye Protection
Light cotton gloves.
Safety glasses.
Gloves
VENTILATION
Local Exhaust
Mechanical (General)
TO BE USED
Special
Other (Specify)
Other Protective
None.
Clothing and Equipment
Hygienic Work
Avoid raising dust. Avoid contact with skin, eyes and clothing.
Practices
Section 7 - Precautions for Safe Handling and Use/Leak Procedures
Steps to be Taken if Material
Sweep or vacuum up and place the spilled material in a waste disposal container. Avoid raising dust.
Is
Spilled Or Released
Waste Disposal
Dispose in an approved landfill according to federal, state and local regulations.
Methods
Precautions to be
Cover promptly to avoid blowing dust. Wash after handling.
Taken
In Handling and
Storage
Other Precautions and/or Special
Keep in sealed containers away from moisture. The silica gel will readily adsorb moisture.
Hazards
*Optional
Indicating Silica Gel
F-7
3700R/3740 Refrigerated Sampler
Appendix F Material Safety Data Sheets
F-8
3700R/3740 Refrigerated Sampler
Index
A
D
Accessories, B-1
Data Retrieval, 1-8
Delay, 3-49
Desiccant, 5-8
Diagnostics, 3-53
Display Index, C-1
Displays, 3-14, 3-17, 3-102, C-1
Run State, 3-107
Settings and Results, 3-103
B
Basic Programming, 3-20
Bottle Locating Base, 2-5
Bottle Rack, 2-5
Bottles, 1-6, 3-39
C
Circuit Boards, 5-18
Main Board, 5-19
Pump Control Board, 5-20
Cleaning, 5-1
Protocols for Priority Pollutants, 5-2
Refrigerator, 5-3
Compatible Equipment
4-20 mA Input, 4-3
Data Retrieval, 1-8
Flow Meters, 1-7, 4-1
Liquid Level Actuator, 4-3
Composite Sampling, 2-11
Configuration Sequence
Enable Pin, 3-50
Event Mark, 3-51
Program Lock, 3-53
Purge Counts, 3-52
Run Diagnostics, 3-53
Tubing Life, 3-53
Configure Sequence, 3-12, 3-38
Bottle Volume, 3-41
Bottles and Sizes, 3-39
Calibrate Sampler, 3-48
Continuous Sampling, 3-40
Cumulative Error, 3-41
Flow-Mode Sampling, 3-48
Liquid Detector, 3-42
Load Stored Program, 3-45
Nonuniform Time, 3-48
Portable/Refrigerated, 3-39
Programming Mode, 3-43
Save Current Program, 3-46
Set Clock, 3-39
Start Time Delay, 3-49
Stop/Resume, 3-49
Suction Line, 3-41
Control Box Mounting, 5-11
Controller, 1-1
E
Error Messages, 3-107
Extended Programming, 3-6, 3-57
Key Times, 3-59
Multi-Bottle Compositing, 3-7
Multiplexing, 3-6
Nonuniform Time, 3-6
Sample Distribution, 3-58
Sample Pacing, 3-58
Stops and Resumes, 3-7
F
Factory Settings
Configure Option, 3-54
Program, 3-56
Flow Meters, 1-7, 2-5, 4-1
Enable Pin, 3-50
Event Mark, 3-51
Non-Teledyne Isco, 1-8, 4-2
Flow Mode, 3-48
Calculation, D-1
G
Glossary, E-1
K
Keypad, 3-14
L
Language, 1-5, 3-81
Liquid Detector, 1-5, 3-42
Liquid Level Actuator, 4-3
M
Material Safety Data Sheets, F-1
Metric Units, 1-5, 3-81
MSDS, F-1
Index-1
3700R/3740 Refrigerated Sampler
Index
P
Parts, A-1
Password, 3-53
Power, 1-7, 2-4
Programming
Basic, 3-20
Configure Sequence, 3-12
Examples, 3-19, 3-24, 3-82
Extended, 3-6, 3-57
Modes, 3-9, 3-43
Operating States, 3-8
Procedure, 3-13
Save Program, 3-46
Steps, 3-20
Stored Programs, 3-45
Pump Tubing, 1-6, 5-4
Installation, 5-6
Removal, 5-6
Replacement Alert, 3-53
R
Refrigerator, 1-2
Defrosting, 2-12
Operation, 2-12
Replacement Parts, A-1
S
Sampling
Composite, 2-11, 3-7
Cycle, 3-2
Distribution, 3-3, 3-58
Events, 3-2
Intervals, 1-3
Multiplex, 1-3
Pacing, 3-3
Start Times, 1-4
Stop/Resume, 3-49
STORM, 1-4, 3-7, 3-68
Volume Delivery, 5-22
Volumes, 1-4
Servicing, 5-12
CMOS Circuitry, 5-16
Contact Information, 5-14
Control Box, 5-14
Distributor Gear Case, 5-15
Electronics, 5-14
Electronics Troubleshooting, 5-18
Pump Gear Case, 5-15
Refrigeration System, 5-13
Refrigerator Electrical System, 5-13
Sample Volume Delivery, 5-22
Standby State, 3-98
Operable Keys, 3-99
Start Time Delay, 3-49
Start Times, 3-63
Stormwater Sampling, 3-7, 3-68
Checklists, 3-68
Configurations, 3-70
Index-2
Programming, 3-72
Strainers, 1-6
Intake Placement, 2-4
Suction Line, 1-6, 3-41, 5-7
Routing, 2-4
Teflon, 5-8
Vinyl, 5-7
W
Weather Resistance, 5-1
Warranty
Teledyne Isco One Year
Limited Factory Service Warranty *
Teledyne Isco warrants covered products
against failure due to faulty parts or
workmanship for a period of one year (365
days) from their shipping date, or from the
date of installation by an authorized Teledyne
Isco Service Engineer, as may be appropriate.
During the warranty period, repairs,
replacements, and labor shall be provided at
no charge. Teledyne Isco’s liability is strictly
limited to repair and/or replacement, at
Teledyne Isco’s sole discretion.
Failure of expendable items (e.g., charts,
ribbon, tubing, lamps, glassware, seals,
filters, fittings, and wetted parts of valves), or
from normal wear, accident, misuse,
corrosion, or lack of proper maintenance, is
not covered. Teledyne Isco assumes no
liability for any consequential damages.
This warranty does not cover loss, damage,
or defects resulting from transportation
between the customer’s facility and the repair
facility.
Teledyne Isco specifically disclaims any
warranty of merchantability or fitness for a
particular purpose.
This warranty applies only to products sold
under the Teledyne Isco trademark and is
made in lieu of any other warranty, written or
expressed.
No items may be returned for warranty
service without a return authorization number
issued from Teledyne Isco.
The warrantor is Teledyne Isco, Inc.
4700 Superior, Lincoln, NE 68504, U.S.A.
* This warranty applies to the USA and countries where Teledyne Isco Inc. does not have an authorized dealer. Customers in countries outside
the USA, where Teledyne Isco has an authorized dealer, should contact their Teledyne Isco dealer for warranty service.
In the event of instrument problems, always contact the Teledyne Isco Service Department, as problems can
often be diagnosed and corrected without requiring an on-site visit. In the U.S.A., contact Teledyne Isco Service
at the numbers listed below. International customers should contact their local Teledyne Isco agent or Teledyne
Isco International Customer Service.
Return Authorization
A return authorization number must be issued prior to shipping. Following authorization,
Teledyne Isco will pay for surface transportation (excluding packing/crating) both ways for 30
days from the beginning of the warranty period. After 30 days, expense for warranty shipments
will be the responsibility of the customer.
Shipping Address:
Mailing address:
Phone:
Fax:
Email:
February 1, 2006 P/N 60-1002-040 Rev C
Teledyne Isco, Inc. - Attention Repair Service
4700 Superior Street
Lincoln NE 68504 USA
Teledyne Isco, Inc.
PO Box 82531
Lincoln NE 68501 USA
Repair service: (800)775-2965 (lab instruments)
(800)228-4373 (samplers & flow meters)
Sales & General Information (800)228-4373 (USA & Canada)
(402) 465-3001
iscoservice@teledyne.com
Web site: www.isco.com