In-Situ Aqua TROLL 100, 200 water quality sensor Operator’s Manual
Below you will find brief information for water quality sensor Aqua TROLL 100, water quality sensor Aqua TROLL 200. The Aqua TROLL® sensor is a compact, modular system for measuring conductivity and temperature in natural groundwater and surface water, as well as industrial, waste, and other installations. Aqua TROLL 200 sensors have the added capability of measuring level.
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Aqua TROLL
®
OpeRaTOR’s ManuaL
Aqua TROLL 100
Aqua TROLL 200
September 2008
Copyright © 2008 by In-Situ Inc. All rights reserved.
Revision history released January 2007 rev. 001 March 2007 rev. 002 September 2007 rev. 003 September 2008
This document contains proprietary information which is protected by copyright. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of In-Situ Inc.
Mailing & Shipping Address:
In-Situ Inc.
221 East Lincoln Avenue
Fort Collins, CO 80524
USA
Phone:
Fax:
970 498 1500
970 498 1598
Internet: www.in-situ.com
Support Line: 800 446 7488
(US & Canada)
The information in this document is subject to change without notice. In-Situ Inc. has made a reasonable effort to be sure that the information contained herein is current and accurate as of the date of publication.
In-Situ Inc. makes no warranty of any kind with regard to this material, including, but not limited to, its fitness for a particular application. In-Situ will not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.
In no event shall In-Situ Inc. be liable for any claim for direct, incidental, or consequential damages arising out of, or in connection with, the sale, manufacture, delivery, or use of any product.
Images in this manual have been selected for illustration; actual images may vary from those shown.
In-Situ and the In-Situ logo, Win-Situ, TROLL, BaroTROLL, Baro Merge, RuggedReader, and RuggedCable are trademarks or registered trademarks of In-Situ Inc. Microsoft, Windows, Excel, Internet Explorer, Windows Mobile, Windows Vista, and
ActiveSync are trademarks or registered trademarks of Microsoft Corporation. Pentium is a registered trademark of Intel.
Tefzel and Delrin are registered trademarks of E. I. DuPont de Nemours and Company. Viton is a registered trademark of
DuPont Dow Elastomers. Kellems is a registered trademark of Hubbell Inc. Alconox is a registered trademark of Alconox
Company. Lime-A-Way is a registered trademark of Reckitt Benckiser. Other brand names and trademarks are property of their respective owners.
Contents
1 IntroduCtIon ......................................................................... 6
System Description ................................................................................................................... 6
How to Use This Manual ............................................................................................................ 6
Conventions ....................................................................................................................... 7
Certification ................................................................................................................................ 8
Unpacking and Inspection ......................................................................................................... 8
Serial Number .................................................................................................................... 8
To Our Customers . . . ................................................................................................................ 9
What We Provide ..................................................................................................................... 10
Warranty Provisions ......................................................................................................... 10
How to Contact Us ................................................................................................................... 10
To Obtain Repair Service (U.S.) .......................................................................................11
Guidelines for Cleaning Returned Equipment ................................................................. 12
2 SyStem ComponentS ............................................................ 14
Body ........................................................................................................................................ 14
Cable ...................................................................................................................................... 14
Communication Cables .................................................................................................... 18
Power Components ................................................................................................................. 19
Installation Accessories ........................................................................................................... 20
Control Software ...................................................................................................................... 21
Product Specifications ............................................................................................................. 22
3
Contents 4
3 GettInG Started ................................................................... 26
Select a TROLL Com for Communication................................................................................ 27
Install the Software .................................................................................................................. 28
USB TROLL Com Drivers ................................................................................................ 28
Win-Situ Mobile ................................................................................................................ 28
Win-Situ Sync .................................................................................................................. 28
Connect the Hardware ............................................................................................................. 29
USB TROLL Com ............................................................................................................ 29
Twist-Lock Cable Connections ........................................................................................ 30
4 uSInG WIn-SItu ..................................................................... 33
Launch the Software and Connect to the Aqua TROLL ........................................................... 33
The Home Screen ................................................................................................................... 35
Customizing the Home Screen Display ........................................................................... 36
Set the Clock ........................................................................................................................... 37
Add a Site ................................................................................................................................ 38
Check the Conductivity Calibration ......................................................................................... 42
Prepare to Log Data ................................................................................................................ 43
Tips for Aqua TROLL Data Logs ...................................................................................... 44
Disconnect ............................................................................................................................... 46
5 ConduCtIvIty ........................................................................ 47
About Conductivity ................................................................................................................... 47
How is Conductivity Measured? ...................................................................................... 47
Calibration ............................................................................................................................... 48
Preparing to Calibrate ...................................................................................................... 49
Calibration Procedure ...................................................................................................... 51
Available Parameters............................................................................................................... 54
Shallow Deployment ................................................................................................................ 56
Maintenance and Recalibration .............................................................................................. 57
Aqua TROLL Operator’s Manual 0061340 rev. 003
Contents 5
6 preSSure and LeveL .............................................................. 58
Non-Vented (Absolute) vs. Vented (Gauged) Sensors ............................................................ 58
Pressure, Depth, and Level ..................................................................................................... 59
Configuring Depth and Level ................................................................................................... 60
Pressure Sensor Calibration ................................................................................................... 63
Barometric Compensation of Non-Vented Pressure/Level Data.............................................. 65
7 FIeLd InStaLLatIon ............................................................... 67
Positioning the Vented Aqua TROLL 200 ................................................................................ 67
Secure the Cable ..................................................................................................................... 68
Installation Tips ........................................................................................................................ 68
Stabilization Time..................................................................................................................... 69
Shallow Deployment ................................................................................................................ 69
Installation of a Non-Vented Aqua TROLL ............................................................................... 70
8 anaLoG, SdI-12 and modbuS ConneCtIonS ........................... 71
Desiccant ................................................................................................................................. 73
Wiring ...................................................................................................................................... 73
Power Connections ................................................................................................................. 78
Communications ...................................................................................................................... 78
For More Information ............................................................................................................... 79
9 Care & maIntenanCe ............................................................ 80
Operating Considerations ........................................................................................................ 80
Storage .................................................................................................................................... 81
General Maintenance .............................................................................................................. 81
Cleaning .................................................................................................................................. 82
10 troubLeShootInG ............................................................... 84 deCLaratIonS oF ConFormIty .................................................. 91
Aqua TROLL Operator’s Manual 0061340 rev. 003
1 IntroduCtIon
SyStem deSCrIptIon
The Aqua TROLL ® sensor is a compact, modular system for measuring conductivity and temperature in natural groundwater and surface water, as well as industrial, waste, and other installations. Aqua TROLL 200 sensors have the added capability of measuring level. Components include the instrument body, vented and non-vented cables, communication cables, external power accessories, desiccants, and other installation accessories, calibration solutions, and software.
hoW to uSe thIS manuaL
This operator’s manual is designed as both a start-up guide and a permanent reference for Aqua TROLL 100 and 200 instruments.
Section 1: Introduction to the Aqua TROLL Operator’s Manual and to In-Situ Inc. — Warranty provisions — Instrument repair & return recommendations
Section 2: System Components — Accessories — Product specifications
6
seCtion 1: introduCtion 7
Section 3: Getting Started — Attaching cable — Installing and launching the software
Section 4: Using Win-Situ — Connecting for the first time — Customizing the Home screen — Setting the clock — Setting a device site —
Calibrating conductivity — Preparing to log data — Disconnecting
Section 5: The Conductivity Sensor: Description — Calibration — Available parameters
Section 6: The Pressure (Level) Sensor: The two basic types of pressure sensors — Factory and field calibration
Section 7: Field Installation — Guidelines and precautions for long-term deployment of the Aqua TROLL instrument
Section 8: Connecting for Use with SDI-12, Analog (4-20 mA), and
Modbus Loggers and Controllers
Section 9: Care and Maintenance
Section 10: Troubleshooting
Conventions
Throughout this operator’s manual you will see the following symbols.
Aqua TROLL Operator’s Manual
The check mark highlights a tip about a convenient feature of the
Aqua TROLL sensor.
The exclamation point calls your attention to a requirement or important action that should not be overlooked.
0061340 rev. 003
seCtion 1: introduCtion 8
CertIFICatIon
The Aqua TROLL instrument complies with all applicable directives required by CE and the FCC and found to comply with EN 61326, ICES-
003, and FCC Part 15 specifications. Declarations of conformity may be found at end of this manual.
unpaCkInG and InSpeCtIon
Your Aqua TROLL instrument was carefully inspected before shipping.
Check for any physical damage sustained during shipment. Notify In-Situ and file a claim with the carriers involved if there is any such damage; do not attempt to operate the instrument. Accessories may be shipped separately and should also be inspected for physical damage and the fulfillment of your order.
TIP: Please save packing materials for future storage and shipping of your
Aqua TROLL instrument.
The shipping boxes have been performance-tested and provide protection for the instrument and its accessories.
serial number
The serial number is engraved on the body of the Aqua TROLL. It is also programmed into the instrument and displayed when the instrument is connected to a computer running Win-Situ 5 or Win-Situ Mobile. We recommend that owners keep a separate record of this number. Should your Aqua TROLL sensor be lost or stolen, the serial number is often necessary for tracing and recovery, as well as any insurance claims. If necessary, In-Situ maintains complete records of original owner’s names and serial numbers.
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 1: introduCtion 9 to our CuStomerS . . .
Thank you for your purchase of an In-Situ product. We are glad you chose us and our products to help you with your environmental monitoring needs. In-Situ Inc. has been designing and manufacturing world-class environmental monitoring instrumentation for over 25 years in the Rocky
Mountains of the United States. As it was in the beginning, our expectation is that this product will provide you with many trouble-free years of use. To that end, we pride ourselves on delivering the best customer service and support possible—24 hours a day, 7 days a week. We believe that this level of commitment to you, our customer, is imperative in helping you ensure clean, safe groundwater and surface water resources around the globe. We also understand the need for accurate, reliable assessments and we continue to make significant investments in Research and
Development to ensure that we deliver the latest product and technological innovations to support your needs.
Whether you are gathering information about your body of water for a few moments, or over a period of years, you can rely upon us to provide you with a quality product and outstanding customer support at a fair price and have that product delivered to you when and where you need it.
We want your experience with In-Situ Inc. to be pleasant and professional, whether you are renting or purchasing from us. We would be pleased to hear from you and to learn more about your needs and your experiences with our products. Again, we thank you for choosing In-Situ Inc. and we look forward to serving your needs now, and in the future.
Aqua TROLL Operator’s Manual
Bob Blythe, President and CEO
In-Situ Inc. [email protected]
0061340 rev. 003
seCtion 1: introduCtion 10
What We provIde
Warranty Provisions
In-Situ Inc. warrants the Aqua TROLL instruments for one year from date of purchase by the end user against defects in materials and workmanship under normal operating conditions. To exercise this warranty contact
Technical Support at the phone or e-mail address listed below for a return material authorization (RMA) and instructions. Complete warranty provisions are posted on our website at www.In-Situ.com.
Maintenance & calibration plans as well as extended warranties are available for U.S. customers. Contact your In-Situ representative for complete information.
Firmware & software upgrades
Aqua TROLL instruments are upgradeable. Contact In-Situ Inc. for details.
hoW to ContaCt uS
Technical Support: 800 446 7488
Toll-free 24 hours a day in the U.S. and Canada
Address: In-Situ Inc.
221 East Lincoln Ave.
Phone:
Fax:
Internet: e-mail:
Fort Collins, CO 80524
USA
970 498 1500
970 498 1598 www.in-situ.com
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 1: introduCtion
Aqua TROLL Operator’s Manual
11
TIP: Please keep your RMA number for future reference.
to obtain rePair serviCe (u.s.)
If you suspect that your Aqua TROLL is malfunctioning and repair is re quired, you can help assure efficient servicing by following these guidelines:
1. Call or e-mail In-Situ Technical Support ([email protected]). Have the product model and serial number handy.
2. Be prepared to describe the problem, including how the instrument was being used and the conditions noted at the time of the malfunction.
3. If Tech Support determines that service is needed, they will ask that your company pre-approve a specified dollar amount for repair charges. When the pre-approval is received, Tech Support will assign an RMA (Return Material Authorization) number.
4. Clean the Aqua TROLL instrument and cable. Decontaminate thoroughly if it has been used in a toxic or hazardous environment.
See the Cleaning Guidelines and form on page 13.
5. Carefully pack your Aqua TROLL instrument in its original shipping box, if possible. Include a statement certifying that the instrument and cable have been decontaminated, and any supporting information.
6. Mark the RMA number clearly on the outside of the box.
7. Send the package, shipping prepaid, to
In-Situ Inc.
ATTN: Repairs
221 East Lincoln Ave.
Fort Collins, CO 80524
0061340 rev. 003
seCtion 1: introduCtion 12
If an instrument returned for servicing shows evidence of having been deployed in a toxic or hazardous environment, Customer
Service personnel will require written proof of decontamination before they can service the unit.
The warranty does not cover damage during transit. We recom mend the customer insure all shipments. Warranty repairs will be shipped back prepaid.
outside the u.s.
Contact your international In-Situ distributor for repair and service information.
Guidelines For CleaninG returned equiPment
Please help us protect the health and safety of our employees by cleaning and decontaminating equipment that has been subjected to any potential biological or health hazards, and labeling such equipment. Unfortunately, we cannot service your equipment without such notification. Please complete and sign the form on page 13 (or a similar statement certifying that the equipment has been cleaned and decontaminated) and send it along to us with each downhole instrument.
• We recommend a good cleaning solution, such as Alconox ® , a glassware cleaning product available from In-Situ (Catalog No.
0029810) and laboratory supply houses.
• Clean all cabling. Remove all foreign matter.
• Clean cable connector(s) with a clean, dry cloth. Do not submerge.
• Clean the probe body—including the nose cone, cable head, and protective caps. Remove all foreign matter.
If an instrument is returned to our Service Center for repair or recalibration without a statement that it has been cleaned and decontaminated, or in the opinion of our Service
Representatives presents a potential health or biological hazard, we reserve the right to withhold service until proper certification has been obtained.
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 1: introduCtion 13
decontamination & Cleaning statement
Company Name ____________________________________________Phone _______________________
Address _______________________________________________________________________________
City __________________________________ State ________________ Zip ______________________
Instrument Type ___________________________________Serial Number __________________________
Contaminant(s) (if known) _________________________________________________________________
______________________________________________________________________________________
Decontamination procedure(s) used _________________________________________________________
______________________________________________________________________________________
Cleaning verified by ________________________________________ Title __________________________
Date _______________________________
Aqua TROLL Operator’s Manual 0061340 rev. 003
14
2 SyStem ComponentS
There are no user-serviceable parts in the Aqua
TROLL body.
body
The completely sealed Aqua TROLL instrument contains conductivity and temperature sensors, real-time clock, microprocessor, sealed lithium battery, data logger, and memory. Aqua TROLL 200 instruments include a vented or non-vented pressure sensor in a variety of ranges.
CabLe
Several basic cable types are used in the Aqua TROLL system.
• RuggedCable ® , TPU-jacketed (Thermoplastic Polyurethane), vented or non-vented
TIP: Cable marking VF = vent-free
• Vented Tefzel ® -jacketed cable (ETFE fluoropolymer)
• Poly-coated stainless steel suspension wire for deployment of a nonvented instrument
• Communication cables for programming the device/downloading the logged data
seCtion 2: system Components ruggedCable ® system
Cable includes conductors for power and communication signals, a strength member, and a Kellems ® grip to anchor the Aqua
TROLL instrument securely. Available in standard and custom lengths.
Uphole and downhole ends are identical “female” bayonet-type
Twist-Lock connectors that mate with the Aqua TROLL body, cable connect TROLL Com devices, desiccants, and other accessories.
Vented cable must be used with vented pressure/level sensors
(gauged measure ments) on the Aqua TROLL 200. The cable vent tube ensures that atmospheric pressure is the reference pressure applied to the sensor diaphragm. Vented cable includes a small desiccant cap. Large volume desiccants are also available.
Non-vented cable may be used with non-vented pressure/level sensors (absolute measurements) on the Aqua TROLL 100 or
200 instruments. Vented cable can also be used.
15
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 2: system Components 16 ruggedCable “stripped & tinned”
In place of the “uphole” Twist-Lock connector, this cable ends in bare conductors for wiring to a logger or controller using SDI-
12, analog (4-20 mA), or Modbus communication protocols.
Vented cable includes an outboard desiccant to protect against condensation. to PLC or logger
Also available in a shorter length ending in a “male”
Twist-Lock connector to mate with RuggedCable.
to PLC or logger
For connections, refer to wiring diagrams in
Section 8.
to RuggedCable suspension Wire
Poly-coated stainless steel suspension cable is ideal for deployment of instruments with non-vented pressure sensors.
to Aqua
TROLL
Aqua TROLL Operator’s Manual to Aqua
TROLL
0061340 rev. 003
seCtion 2: system Components small desiccant
Vented cable includes a clear cap of indicating silica gel desiccant to protect the cable and electronics from condensation. The desiccant is blue when active. It will absorb moisture from the top down and for best results should be replaced before the entire volume turns pink. Replacements are available from In-Situ Inc. or your distributor.
17
TIP: Protect new desiccant from moisture until ready to use.
large desiccant
The optional high-volume desiccant pack may last up to 20 times longer than the small desiccant in humid environments. It attaches to vented Aqua TROLL 200 cable in the same way.
Available with titanium or plastic twist-lock connector.
Refill kits are available from In-Situ Inc. or your distributor.
outboard desiccant
Vented “stripped & tinned” cable includes an outboard desiccant pack attached to the cable vent tube. Same size as large desiccant. Replacements and refills are available.
Accessory Catalog No.
Small desiccant (3) ....................................................................... 0052230
Large desiccant, ABS connector .................................................. 0053550
Large desiccant, titanium connector ............................................. 0051810
Outboard desiccant (replacement) ............................................... 0051380
Refill kit for large & outboard desiccant ........................................ 0029140
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 2: system Components
The computer connectors are not submersible.
18
CommuniCation Cables
TROLL Coms interface between an Aqua TROLL sensor and a desktop/ laptop PC or handheld PDA for profiling, calibrating, programming, and downloading. Both include 0.9 m (3 ft) vented polyurethane cable, external power input jack, and vent with replaceable membrane.
troll Com (Cable Connect)
External power input
Vent
Connects an Aqua TROLL sensor’s
RuggedCable to a serial or USB port.
Weatherproof, withstands a temporary immersion (IP67).
RS232 or USB connector
Twist-Lock connector troll Com (direct Connect)
Connects an Aqua TROLL instrument directly to a serial or USB port. A good choice for permanent connection to a PC, or for programming a nonvented Aqua TROLL that will be deployed without
RuggedCable. Not submersible or designed for harsh field conditions.
Accessory Catalog No.
RS232 TROLL Com, Cable Connect ............................................ 0056140
USB TROLL Com, Cable Connect ............................................... 0052500
RS232 TROLL Com, Direct Connect ............................................ 0056150
USB TROLL Com, Direct Connect ............................................... 0052510
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 2: system Components
TIP: Win-Situ 5 can display the approximate percentage of internal battery life remaining when the Aqua TROLL instrument is connected to a computer. poWer ComponentS internal Power
The Aqua TROLL instrument operates on 3.6 VDC, supplied by a completely sealed, non-replaceable AA lithium battery. Battery life depends on sampling speed. The battery is guaranteed for 5 years or
200,000 readings, whichever occurs first.
19
TIP: When an
Aqua TROLL sensor is used as an Analog (4-20 mA),
SDI-12, or Modbus device, power is supplied by the data logger or controller to which the Aqua TROLL is wired.
Use only In-Situ’s
AC adapter.
Damage to the
Aqua TROLL instrument caused by the use of third-party converters is not covered by the warranty.
external Power external battery Pack
The sealed, submersible TROLL Battery Pack (lithium) supplies
14.4 V. When this power source is connected, the Aqua TROLL instrument will use the external battery source first and switch to the internal batteries when external battery power is depleted.
Typical external battery life when logging all available parameters at 2-minute intervals is approximately 2 years.
aC adapter
In-Situ’s AC adapter provides 24 VDC, 0.75 A, AC input 100-250 V, includes North American power cord. The Programming Cable includes an external power input for connection to this adapter.
Accessory Catalog No.
External Battery Pack ................................................................... 0051450
AC Adapter 24V ............................................................................ 0052440
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 2: system Components
Twist-Lock Hanger
InStaLLatIon aCCeSSorIeS
• Twist-Lock Hanger: titanium hanger to seal and suspend a nonvented Aqua TROLL instrument while taking data; no venting, no communication capabilities
• Cable Extender: connects two lengths of RuggedCable
• Wellcaps, locking and vented
• Well Docks: top-of-well support for 2”, 4”, or 6” well
• Panel-mounted bulkhead for connection to RuggedCable
20
Cable Extender
Locking Wellcap
Accessory Catalog No.
Twist-Lock Hanger, titanium ......................................................... 0051480
Cable Extender ............................................................................. 0051490
Locking Wellcap, 2” ..................................................................... 0020360
Locking Wellcap, 2” vented ......................................................... 0020370
Locking Wellcap, 4” ..................................................................... 0020380
Locking Wellcap, 4” vented ......................................................... 0020390
Top-of-well installation ring ....................................... WELLDOCK2”, 4”, 6”
Bulkhead connector ...................................................................... 0053240
Well Dock
Bulkhead connector
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 2: system Components 21
ControL SoFtWare
Win-Situ ® 5 is easy-to-use software for programming Aqua TROLL instruments.
Win-Situ provides instrument control for direct reads and profiling, calibration, long-term data logging, data downloads, data viewing, data export to popular spreadsheet programs, choice of units and other display options, battery/memory usage tracking. Win-Situ ® Plus enables configuration of networks and telemetry.
Minimum system requirements: 400 MHz Pentium ® II processor; 128 Mb
RAM, 100 Mb free disk space; Internet Explorer ® 6.01 or higher; Windows ®
2000 Professional SP4 or higher, Windows XP Professional SP2 or higher, or Windows Vista SP1 or higher; CD-ROM drive; serial or USB port.
Complete information on using the software is available from Win-Situ’s
Help menu.
Win-Situ ® Mobile provides the features and functions of Win-Situ 5 on a field-portable platform. Requirements: In-Situ RuggedReader ® with
Microsoft Windows Mobile ® operating system (yellow RuggedReader,
Pocket PC 2003 or later; blue RuggedReader, Windows Mobile 5 or later), serial communications port, and at least 16 Mb for data storage (SD card,
CF card, or the device’s built-in non-volatile memory). For installation and file exchange, Microsoft ® ActiveSync ® must be installed on an office desktop or laptop computer.
Accessory Catalog No.
Win-Situ 5 (no license required) ................................................... 0051980
Win-Situ 5 Plus license ................................................................. 0053560
Win-Situ Mobile license for RuggedReader .................................. 0047520
Win-Situ Mobile license (upgrade from Pocket-Situ 4) ................. 0047550
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 2: system Components produCt SpeCIFICatIonS
Operating Temperature
Storage Temperature
Dimensions
O.D.
Length
Weight
Material
Housing
Nose Cone
Output Options
-20° to +65°C (-4° to +149°F)
-40° to +65°C (-40° to +149°F)
18.3 mm (0.72 in)
31.5 cm (12.4 in)
0.45 kg (1.0 lb)
Titanium
Black Delrin ®
RS232 (with TROLL Com), Modbus (RS485), SDI-12, 4-20mA
Power
Internal Battery
Battery Life
External Power
3.6 V lithium
5 yrs or 200,000 readings* guaranteed
External Battery
Real-Time Clock
Real-Time Reading Rate 1 per second
Memory 4 MB, 380,000 data points**
Max. no. of logs
8-36 VDC
14.4 V lithium
Accurate to 1 second per day
50
Log Type
Linear
Linear Average***
Event***
Fastest Reading Rate Fastest Logging Rate
1 per minute
1 per second
1 per second
1 per minute
1 per minute
1 per second
22
* 1 reading = time plus all available parameters read from device or logged
** 1 data point = time plus one parameter in a data log
*** External power or external battery pack required for Event logging, recommended for Linear Average logging
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 2: system Components 23
Conductivity
Sensor Type
Material
Range
Accuracy
Balanced 4-electrode cell
PVC, titanium
5 µS/cm to 100,000 µS/cm
Below 80,000 µS/cm: ± 0.5% of reading plus 1 µS/cm
Above 80,000 µS/cm: ± 1.0% of reading
0.1 µS/cm Resolution
Parameters supported*
Parameter Units Range
Actual Conductivity
Specific Conductivity**
Salinity***
TDS
Resistivity ohms-cm
Water Density (based on g/cm 3
salinity)
µS/cm, mS/cm 5 – 100,000 µS/cm
µS/cm, mS/cm 5 – 100,000 µS/cm
PSU ppt, ppm
0 – 42 PSU
0 – 82 ppt
10 – 200,000 ohms-cm
0.98 – 1.14 g/cm 3
* Parameters derived from Temperature at 25°C and Actual Conductivity 5 – 100,000 µS/cm
** Derived from Standard Methods 2510B
*** Derived from Practical Salinity Scale 1978 Standard Methods 2520B
For more information on measurement methodology, see the In-Situ technical note “Aqua TROLL 200 Measurement Methodology” on the In-Situ software/ resource CD, or at www.in-situ.com.
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 2: system Components
Pressure/level (aqua troll 200 only)
Sensor Type
Material
Range, Non-Vented
Range, Vented
Silicon strain gauge
Titanium
30, 100, 300, 500 psia
5, 15, 30, 100, 300, 500 psig
Units of measure
Non-Vented
Vented
Accuracy*
@ 15°
0° to +50°C psi, KPa, mm, cm, m, in, ft, Bar, mBar, mm Hg psi, KPa, mm, cm, m, in, ft
± 0.05% Full Scale (FS)
± 0.1% FS
-20 to -1 & +51 to +80°C ± 0.25% FS typical
Resolution
Max. pressure
Burst pressure
± 0.005% FS or better
2X range
3X range
* FS = full scale. Accuracy with 4-20 mA output option: ± 0.25% FS typical
Non-Vented Aqua TROLL 200
Range Effective Range** Usable Depth psia psia kPa Meters Feet
30
100
300
500
15.5 106.9 0-10.9 0-35.8
85.5 589.5 0-60.1 0-197.3
285.5 1968 0-200.7 0-658.7
485.5 3347 0-341.3 0-1120
** At sea level (14.5 psi atmospheric pressure).
Vented Aqua TROLL 200
Range Usable Depth
psig kPa Meters Feet
5 34.5 0-3.5 0-11.5
15 103.4 0-11
30 206.8 0-21
0-35
0-69
100 689.5 0-70 0-231
300 2068 0-210 0-692
500 3447 0-351 0-1153
24
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 2: system Components temperature
Material
Range
Units of measure
Accuracy
Resolution
Titanium
-20° to +65°C (-4° to +149°F)
Celsius, Fahrenheit
± 0.1°C
0.01°C
Cable
Jacket options
Connector
Conductors
Diameter
Break strength
Minimum bend radius
(vented cable)
Weight
Polyurethane, Tefzel
6.7 mm (0.265 in)
127 kg (280 lb)
®
Titanium, 18.5 mm (0.73 in) O.D.
6 conductors, 24 AWG, polypropylene insulation
2X cable diameter (13.5 mm, 0.54 in)
Vented, regular: 14 kg/300 m (32 lb/1000 ft)
Non-vented, regular: 16 kg/300 m (35.6 lb/1000 ft)
Vented Tefzel: 14 kg/300 m (32 lb/1000 ft) suspension Wire
Material
Coating
Weight
Overall O.D.
Break strength
304 stainless steel, 7 x 7 strand
15 mil polyester elastomer insulation
0.28 kg/30 m (0.60 lb/100 ft)
2.2 mm (approx. 1/16 in)
122 kg (270 lb) with proper tightening of clips
25
Aqua TROLL Operator’s Manual 0061340 rev. 003
26
3 GettInG Started
This section provides a quick overview of the initial steps necessary to get the instrument ready to communicate:
4 Select the appropriate TROLL Com for communication. This determines the hardware connections, and may influence the software installation. The drawing on the following page shows the function of the different TROLL Com models.
4 Install the software.
4 Connect the hardware, based on the selected TROLL Com.
4 Launch the software and establish communication with the Aqua
TROLL. See Section 4 of this manual for an overview of Win-Situ operations.
seCtion 3: GettinG started
SeLeCt a troLL Com For CommunICatIon
The figure below shows the function and connectability of the different models of TROLL Com.
Serial port USB port
27
TIPS: A Direct
Connect TROLL
Com may be preferred for programming an Aqua TROLL that will be deployed on wire.
RuggedCable and a Cable
Connect TROLL Com are required for communication with the device while deployed, but programming can be done with any
TROLL Com connection.
An RS232 (serial) TROLL
Com is needed for use with a RuggedReader.
RS232 connections
Direct Connect
TROLL Coms:
Not designed for submersion
USB connections
Cable Connect TROLL Coms:
Designed for field use
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 3: GettinG started 28
TIP: If using a
USB TROLL
Com, be sure to select the option “Install
USB TROLL Com Drivers” when installing Win-Situ 5.
TIP: Insure
Microsoft
ActiveSync is installed on the desktop or laptop PC and a Guest connection or partnership has been established between the computers.
InStaLL the SoFtWare
Install Win-Situ 5 from the In-Situ software/resource CD or from the In-Situ website:
• Click on Win-Situ 5, and follow the instructions to install Win-Situ 5 to your local hard drive. usb troll Com drivers
• If using a USB TROLL Com, be sure to select the option "Install USB
TROLL Com Drivers." Two drivers will be loaded to your hard drive, one for the USB TROLL Com, one for the USB TROLL Com serial port.
Win-situ mobile
For communication using a RuggedReader handheld PC in the field, install the desktop component of Win-Situ Mobile on a desktop/laptop
PC from the CD or website: The desktop component is called the Win-
Situ Software Manager, and is needed to install Win-Situ Mobile on the
RuggedReader.
1. Click on Win-Situ Mobile and follow the instructions to install the Win-
Situ Software Manager to your local hard drive.
2. Connect the RuggedReader to the desktop computer, establish a connection in Microsoft ActiveSync ® , launch the Win-Situ Software
Manager, and follow the instructions to install Win-Situ Mobile on the
RuggedReader.
Win-situ synC
If you plan to synchronize log files from the RuggedReader to a PC after collecting data in the field, install Win-Situ Sync from the CD or website.
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 3: GettinG started 29
TIP: If you need more information on the Twist-Lock connectors, refer to the topic Twist-Lock Cable
Connections later in this section.
ConneCt the hardWare
1. Connect the Aqua TROLL sensor to the selected TROLL Com as illustrated earlier in this section.
• Direct Connect: Attach via push-on connection to the Aqua TROLL back end.
• Cable Connect: Mate the Twist-Lock connectors on the Aqua
TROLL and the RuggedCable.
2. Plug the TROLL Com into the computer.
number. You will need it when connecting to the Aqua TROLL in
Win-Situ.
Remember the COM port usb troll Com
When you plug in a USB TROLL Com, the USB drivers that were downloaded when you installed Win-Situ 5 will be installed as follows:
• Windows 2000, Windows Vista: When new hardware is detected, the drivers are installed automatically.
• Windows XP: Follow the instructions in the Found New Hardware
Wizard. Select the option “Install Software Automatically.”
After installation, check as follows to find which COM port the connected
USB TROLL Com is using:
• Windows 2000, Windows XP: Control Panel > System > Hardware tab > Device Manager > Ports. Click the plus sign to display the ports.
• Windows Vista: Control Panel > System > Device Manager
(Administrator permission required) > Ports. Click the plus sign to display the ports.
After connections are made, you are ready to launch the software and program the Aqua TROLL instrument. Section 4 of this manual is an overview of Win-Situ. For more detailed information, see Win-Situ’s Help menu.
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 3: GettinG started 30 tWist-loCk Cable ConneCtions
1. Remove the protective caps from the Aqua TROLL connector end and cable connector end.
TIP: Retain the dust caps to protect the pins and o-ring from damage when cable is not attached.
Aqua TROLL
(or Cable Connect TROLL Com)
Cable
Flat
Flat
Aqua TROLL
(or Cable Connect
TROLL Com) Cable
2. Take a moment to look at the connectors. Each has a flat side.
Note the pins on the body connector (one on each side) and the slots on the cable connector (one on each side).
pin slot
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 3: GettinG started
3. Slide back the sleeve on the cable connector.
31
4. Orient the “flats” so they will mate up, and insert the Aqua TROLL connector firmly into the cable connector.
Aqua TROLL Cable
5. Slide the sleeve on the cable toward the Aqua TROLL body until the pin on the body pops into the round hole in the slot on the cable connector.
6. Grasp the knurled (textured) section of the cable connector in one hand and the Aqua TROLL body in the other. Push and twist firmly so
Aqua TROLL Cable
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 3: GettinG started 32
Be sure you hear the “click.”
The “click” ensures the cable is securely attached. that the pin on the body connector slides along the slot on the cable connector and locks securely into the other hole.
To attach a Cable Connect TROLL Com, first remove the desiccant from the cable by grasping the knurled (textured) section of the cable connector
Aqua TROLL Cable in one hand and the desiccant in the other. Twist in opposite directions to unlock the desiccant from the cable.
Orient the “flats” so they will mate up, and insert the TROLL Com connector firmly into the cable connector.
Push, twist, and click to lock.
Aqua TROLL Operator’s Manual 0061340 rev. 003
33
4 uSInG WIn-SItu
TIP: Win-Situ
Mobile provides
Win-Situ 5 features and functionality in a convenient field-worthy platform.
Win-Situ ® 5 is the In-Situ instrument control software for Aqua TROLLs.
Use Win-Situ to:
• Display real-time readings from the connected Aqua TROLL, in meter, tabular, or graphic format
• Program the device to log data; download the logged data
• Calibrate the conductivity sensor, select output parameters and units
• Customize the output of a pressure/level sensor to record drawdown, surface water elevation, gauge height, stage height, etc.
• Set communication options in the device—Modbus, SDI-12, analog,
IP, telemetry, etc.
LaunCh the SoFtWare and ConneCt to the aqua troLL
1. Start Win-Situ by double-clicking the shortcut created on the desktop during installation.
seCtion 4: usinG Win-situ 34 the port is usually
COM 1. This is the Win-Situ default.
TIP: For direct serial connection
For USB communication, be sure to select the correct
COM port.
Win-Situ launches and displays the Data area (“Data tab”), shown below.
2. Check the COM port. When you launch for the first time, the software may ask if you want to select a COM port. Do one of the following:
4 Answer Yes to the prompt, then check or change the port in the
Comm Settings dialog, and click OK to close it, or
4 Answer No to bypass this step.
3. Win-Situ asks if you want to connect to the Aqua TROLL (the
“device”). If the Aqua TROLL instrument is connected to your computer as described in the previous section, answer Yes.
TIP: You can turn off the “Connect now?” prompt:
Select Prefrences menu >
General Settings, deselect
“Prompt for connect at startup,” click OK. In this case, connect to the device by clicking the Connect button .
C:\Documents and Settings\ [Login] \My Documents\WinSitu Data
Data tab
2
3
Connect button
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seCtion 4: usinG Win-situ 35
4. Software connects and displays a reading of all supported parameters.
Tabs
Dashboard
Home tab
Click here to update readings in real time
Device is connected
Control Panel the home SCreen
4 Note the Tabs at the top of the screen—this is the Home tab, which displays current readings from the connected device.
4 The Dashboard (status area) shows the device model & serial number, battery and memory usage, clock, alarms, and logging status.
4 The Control Panel contains action buttons. To update the readings in real time, press .
Note: When this button looks “pressed in” , polling is active.
Before you can perform certain software tasks, you will need to stop polling by pressing the button again.
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seCtion 4: usinG Win-situ
TIP: Unit selection is not available if the device is polling or has an active log.
TIP: All parameters supported by the device are shown in the Home screen by default. To change this, select Preferences menu
> Home View Settings.
De select any parameters you do not wish to view by clearing the check boxes.
CustomizinG the home sCreen disPlay
Changing units
1. Click the Sensors tab , select the sensor whose unit you wish to change.
2. Click the “Configure” button the control panel.
in
3. In the Sensor Setup screen, select a parameter, then select a unit. Repeat for each parameter as necessary.
4. Click OK
Sensors tab.
to return to the
Changing the rate at Which the readings update
Also called the “poll rate,” this can range from 1 to 30 seconds.
1. Select Preferences menu > Home View Settings.
2. Adjust the Poll Rate. Default: 5 seconds.
Changing the decimal Places displayed
To change the number of decimal places displayed for each reading:
1. Select Preferences menu > General Settings.
2. Under Parameter Defaults, select a parameter, then the “significant decimal digits” for each parameter. real-time Graphing
To view a real-time trend graph: click the “Graph” button
To view a graph with a data table below it, select Preferences menu >
Graph Settings. Check the Data Panel option. Click OK.
36
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 4: usinG Win-situ
TIP: The
Preferences option on the
Menu bar allows users to configure instrument software, including:
• General settings
• Comm settings
• Working directory
• Graph settings
• Home view settings
• Data view settings
37
Now you’re ready to set specific information in the software. Win-Situ provides many options. At a minimum:
• Set the Aqua TROLL clock
• Enter a name for the site where the instrument will collect data
• Calibrate the conductivity sensor
• Enter data logging instructions
A brief overview is provided here. For more detailed information, see the
Win-Situ Help menu.
Set the CLoCk
Data collection schedules depend on the device’s real-time clock. Both the device clock and the system (PC) clock are shown on the dashboard. The clocks update every 2 seconds. If the device clock differs by more than
2 seconds from the system clock, the device clock is displayed in red. To synchronize the clocks, click the “Sync” button .
Clock Sync button
Device clock
PC clock
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 4: usinG Win-situ 38 add a SIte
TIP: A default site is supplied and may be used, but it does not contain any specific information on the location data collection site.
For more information on sites, see Win-Situ Help menu.
Logged data are organized and filed by the site where the data were logged. This feature can help you manage data from multiple sites. You can create as many sites as you like, with or without an Aqua TROLL connected. Sites are stored in the site database in your Win-Situ working directory and are available to select for any Aqua TROLL, any log.
You will need a site when setting up a data log. Here are the steps to set up a new site:
1. On the Data tab, click the Site Data folder.
2. Select File menu > New > Site.
TIP: You can also create a Site
Group to organize multiple sites within a Site
Group folder.
C:\Documents and Settings\ [Login] \My Documents\WinSitu Data\Site Data
Site Data folder
Data tab
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 4: usinG Win-situ 39
TIP: Site coordinates are optional. They are also used to establish the probe location for dynamic specific gravity calculation, if used. See the Win-Situ Help menu, or Section 6 below.
3. In the Site Information screen, enter a name for the site. A short, descriptive name is best—for example, a project, well, water body, gauging station, town, nearby landmark, etc. Length is limited to 32 characters.
A site name is the only required field, but there are many additional options for identifying a site. To include site Coordinates, check
Coordinates, then enter Latitude (0.00 to 90.00, select North or South from listbox), Longitude (0.00 to 180.00, select East or
West) and Elevation (select Feet or Meters). You can add a short descriptive Note, import a site Photo (bitmap), and/or specify a custom
Connection. (If any connections have been defined, they will be displayed.)
4. When finished, click Save to save the site.
Name the site
Save the site
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seCtion 4: usinG Win-situ 40
The new site will appear in the Site Data folder, and Win-Situ will add it to the site database in the working directory on your computer. It is now available to select for any device, any log.
New site appears in Site
Data folder
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 4: usinG Win-situ 41
5. To set this new site in the connected Aqua TROLL instrument: Return to the Home tab, click the down arrow beside the site box, and select your new site.
This site now becomes the “current” site for the connected Aqua
TROLL sensor, and is available to use in data logs.
Select the site
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 4: usinG Win-situ 42
CheCk the ConduCtIvIty CaLIbratIon
The conductivity sensor in the Aqua TROLL instrument has been calibrated during manufacturing to produce a flat response across the operating range.
We recommend you check the specific conductivity reading in the solution shipped with your instrument. If the device is reading accurately, there is no need to field-calibrate the instrument unless
SOPs require it.
For best results we recommend you read and
follow the conductivity calibration procedure in
Section 5 of this operator’s manual.
To perform a field calibration you will need:
4 The In-Situ Cal Cup, or other suitable container that allows for complete immersion of the conductivity sensor, including the temperature “button,” which can be seen on one side of the probe. The Cal Cup is recommended for the first calibration.
Temperature
Conductivity
Pressure
4 The calibration standard solution supplied, or other solution of known specific conductivity in the range 100 to 60,000 µS/cm.
The complete calibration procedure takes only a few minutes and may be done in a field or office/lab setting with a software connection in Win-Situ
5 or Win-Situ Mobile. A detailed description of the conductivity calibration procedure, including:
• Preparation of the Aqua TROLL instrument
• Software input
• Calculated output
• Hints for successful calibration is in Section 5 of this manual.
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 4: usinG Win-situ prepare to LoG data
1. To program the device to log data, go to the Logging tab.
2. Click the “New” button.
TIP: Be sure to stop “Polling” in the Home screen before setting up a data log.
43
Logging tab
“New” button
TIP: For more complete information on setting up data logs, see the
Win-Situ Help menu.
The Logging Setup Wizard will guide you through the configuration of a data log—including the site, log name, parameters to measure, sample schedule, start time, stop time, level output, and other options.
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 4: usinG Win-situ 44 tiPs For aqua troll data loGs
• Nine parameters are available for the Aqua TROLL 200. Seven parameters are available for the Aqua TROLL 100. All selected parameters are logged, with implications for battery and memory usage.
• Only one “ active” log can reside in the device at a time. An “active” log is a log that is Ready, Pending, Running, or Suspended as shown in the Status column of the Logging Tab.
• To avoid draining the Aqua TROLL battery prematurely, external power is required for Event logging, and recommended for Linear Average logging.
• For information on selecting a Level output, refer to the Win-Situ Help menu, or Section 6 in this manual.
• For a non-vented Aqua TROLL that will be deployed on wire, be sure to select a Scheduled Start so the log will start by itself, without a communication connection.
• For more complete information on setting up data logs, see the Win-
Situ Help menu .
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seCtion 4: usinG Win-situ
TIP: As an alternative to the log control buttons, right-click a log to display a short context menu of available actions.
TIP: The available log control buttons will vary depending on the status of the selected log.
To Start logging:
• A “Pending” (scheduled) log will start at its programmed time.
• You can start a “Ready” (manual) log at any time while connected by selecting the log and pressing “Start” .
To Stop logging:
• Select the log and press the “Stop” button .
• Or suspend (temporarily stop) it with the “Pause” button .
To Download the log to the connected PC:
• Select the log and press the “Download” button
To View the log after downloading:
• Go to the Data tab and select the log; for a graph press
.
.
45
Log control buttons
Aqua TROLL Operator’s Manual
Logging tab
“Start” button
“Ready” log
0061340 rev. 003
seCtion 4: usinG Win-situ
Be sure to
remove the desiccant dust cap (if present) before deployment to allow air to reach the cable’s vent tube.
46 dISConneCt
After the Aqua TROLL is programmed to log data, you are ready to:
• Exit the software (File menu > Exit).
• Disconnect the TROLL Com from the cable connector, by grasping the knurled (textured) section of the cable connector in one hand and the TROLL Com in the other. Twist in opposite directions to unlock the
TROLL Com from the cable.
• Vented cable: Attach desiccant to the cable connector—line up the flat sides of the connectors, push, twist, and click to lock the desiccant to the cable. Remove red dust cap (if present) from the desiccant’s vent.
• Non-vented Aqua TROLL (or installations where vented pressure or communication are not required): Attach a non-vented cable or Twist-
Lock hanger and suspension wire.
• Install the instrument in its field location. See Section 7 for guidelines.
Aqua TROLL Operator’s Manual 0061340 rev. 003
47
5 ConduCtIvIty
about ConduCtIvIty
Conductivity measures the ability of a material to carry an electric current.
Generally, the higher the concentration of dissolved salts and minerals in water, the better the conductor and the higher the electrical conductivity.
Deionized/distilled water is a poor conductor because almost all anions and cations are removed during the deionization/distillation process.
If conductivity changes in a body of water, it often indicates an environmental event. For example, a dramatic increase in the electrical conductivity of an underground fresh water aquifer located near the ocean could indicate the beginning of saltwater intrusion. On the other hand, an increase in the electrical conductivity of a small lake that is completely surrounded by farmland may simply be the result of runoff from recent precipitation. hoW is ConduCtivity measured?
Conductance is the reciprocal of the resistance, in ohms, measured between two opposing electrodes of a 1 cm cube at a specific temperature. The unit 1/ohm or mho was given the name of Siemens
(S) for conductance. It is not practical to require all conductance cells to have the dimensions of an exact cube. To enable the comparison of data from experiments with different conductance cells, the conductance
seCtion 5: ConduCtivity 48 is multiplied by the cell constant to give conductivity in Siemens per centimeter (S/cm). Cell constants are determined for each sensor using a standard solution of known conductivity. The cell constant depends on the electrode area and the amount of separation or distance between the electrodes.
The modern four-electrode conductivity cell contains two drive electrodes and two sensing electrodes. In the Aqua TROLL instrument, each drive electrode is composed of two interconnected pins, for a total of six pins.
The sensing electrodes are positioned in a low current area to minimize electrode fouling. An alternating current is used to drive the cell. This reduces errors caused by polarization resulting from the application of a direct current.
CaLIbratIon
TIP: For more information on factory calibration of the conductivity sensor, see the technical note “Aqua
TROLL 200 Conductivity
Accuracy” on the In-Situ software/resource CD, or at www.in-situ.com.
TIP: When calibrating below 1,000 µS/ cm, additional care must be taken to prevent the calibration solution from drifting due to atmospheric exposure.
The conductivity sensor in the Aqua TROLL instrument has been calibrated during manufacturing to produce a flat response across the operating range. Standard Operating Procedures for measuring conductivity in the field typically specify that the sensor shall be calibrated before use, close to the expected temperature and conductivity conditions.
The accuracy of the sensor depends on the calibration solution used and the operator’s technique.
We recommend that you check the specific conductivity reading in the solution shipped with your instrument. If the device is reading accurately, there is no need to field-calibrate the instrument unless SOPs require it.
The Aqua TROLL instrument can be calibrated at any point in the operating range. However, best results will be obtained in the range of approximately 100 to 60,000 microSiemens/cm (µS/cm).
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seCtion 5: ConduCtivity 49
When carbon dioxide from the air dissolves into water it increases the conductivity, sometimes by as much as one or two µS/cm. This could shift a 146.9 standard by as much as 3%. The amount of shift is not predictable, so it should be minimized by limiting the amount of exposure to air. Fill at least to the marked fill line and close the cup as soon as possible. A small air bubble in the cup is acceptable, and in fact it assists mixing during the inversions. Discard remaining portions of low range calibration standards within a few days after opening the bottle.
To perform a conductivity calibration of the Aqua TROLL instrument you will need:
4 The In-Situ Cal Cup supplied with your instrument
4 The calibration standard solution supplied, or other other solution of known specific conductivity in the range 100 to 60,000 µS/cm.
PreParinG to Calibrate
Three factors are essential to a successful conductivity calibration:
A The calibration solution is not diluted or contaminated.
B The probe and the solution are at the same temperature.
C The sensing cell is completely filled with solution—no air bubbles on the sensor.
The following preparation steps can help to insure a successful calibration and avoid erroneous field data.
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seCtion 5: ConduCtivity 50
When the nose cone is removed, the pressure sensor diaphragm is exposed. Do not touch the face of the pressure sensor!
Grommet
Cap
Fill
Cal Cup
Rinse
TIP: A second rinse is important if the Cal Cup and the Aqua TROLL were not clean and dry at the start of this process.
A Eliminate water and rinse
1. Remove the nose cone (Aqua TROLL 200 only). Water trapped here can dilute the calibration solution. Air bubbles may also come from this area.
2. If the device is wet from previous use, dry the body and shake to clear any liquid inside the conductivity sensor.
3. Before opening the solution bottle, invert it a few times to redistribute any water condensation.
4. Remove the Cal Cup cap and fill the cup to the “Rinse” line with calibration solution.
5. Insert the Aqua TROLL through the grommet in the cap.
6. Attach the cap to the Cal Cup. The Aqua TROLL should rest on or near the bottom.
7. Shake vigorously to rinse the sensing cell.
8. Loosen the cap, remove the Aqua TROLL (no need to pull it out of the cap), and discard the solution.
9. For best results, rinse again using the same procedure.
B Equalize temperature
1. Fill the Cal Cup to the “Fill” line with calibration solution.
2. Install the Aqua TROLL and tighten the cap.
3. Invert multiple times for at least 30 seconds—longer if the probe and solution are at different temperatures.
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seCtion 5: ConduCtivity preparinG to
Calibrate
(continued)
C Dispel air bubbles from the sensor
1. Hold the Aqua TROLL horizontally, and firmly tap the Cal Cup against a convenient surface
(for example, your other hand).
2. Rotate the Aqua TROLL on its axis about 45 degrees and tap again.
3. Rotate another quarter turn and tap again.
Note: Sometimes dissolved gases in the solution will cause bubbles to form on the sensor, especially if the solution was cold. Thermal equilibrium may require extra time, and air bubbles may
51
Tap
TIP: With the correct fill level, and the instrument held at a 45° angle, the air bubble in the Cal Cup will not intrude into the conductivity sensor. need to be tapped off before starting the calibration. If you can see
Rotate and Tap bubbles on the inside of the Cal Cup, bubbles are probably on the sensor.
TIP: For best results when calibrating a completely dry sensor, allow it to soak for 15 minutes in the calibration solution before proceeding.
Calibration ProCedure
1. If you have not already done so, attach cable to the Aqua TROLL and to the computer, launch Win-Situ, and connect to the device.
2. Go to the Sensors tab and select the sensor.
3. Click the “Calibrate” button .
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seCtion 5: ConduCtivity
4. In the next screen, select the Conductivity parameter and click
Calibrate...
52
Sensors tab
2 Select the sensor
3 Click “Calibrate”
4 Select Conductivity, click Calibrate...
TIP: The probe can be in a horizontal or vertical position during calibration.
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seCtion 5: ConduCtivity
Calibration
(continued)
53
After a review of the preparation steps just performed, a screen like this appears:
TIP: The Write
Defaults button restores the factory cell constant to the sensor.
5. Enter the Specific Conductivity of the calibration solution in µS/cm.
Click Accept.
6. Click Start Calibration.
TIP: “Delta” is the change in sensor response between the last two readings. This enables you to follow the progress of the stabilization, but deviation from the previous reading is not necessarily the best indicator of stability as the software is looking at longer-term trends.
Software will monitor the conductivity and temperature readings, calculate the cell constant (sometimes called the “Kcell”), and inform you when the response meets the criteria for
7. You can click
Nominal Stability.
Accept... at any time to continue. For best results, wait until Full Stability is reached. At that time, the next screen is displayed automatically.
8. Look at the Proposed Cell Constant before you Commit it to the sensor. It should be in the range 0.98 to 1.02.
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seCtion 5: ConduCtivity 54
Calibration
(continued)
TIP: If the proposed cell constant is outside the range 0.98
– 1.02, check conditions and repeat the calibration.
TIP: A change from an earlier cell constant of
0.02 suggests that the calibration should probably be repeated. Check conditions and re-do the calibration.
If the cell constant is suspect, the cause could be an air bubble, incomplete rinsing, sensor fouling, or other factors. Repeat the preparation and calibration with fresh cal solution.
9. When you are satisfied with the proposed cell constant, click
Commit to write the calculated cell constant to the sensor.
10. If the Aqua TROLL will be deployed immediately, remove it from the Cal Cup, rinse it, discard the calibration solution, and reinstall the black nose cone. Otherwise, store it wet in the Cap Cup (in cal solution or water) for later deployment.
avaILabLe parameterS
The Aqua TROLL instrument can also calculate and record derived parameters as listed below.
For more information on measurement methodology, including the equations used to derive the calculated parameters, see the technical note nominal stability vs. Full stability
To meet the criteria for a valid calibration point, the change (Delta) in sensor response is monitored over time. The software is looking for the calibration solution temperature and the sensor readings to settle over a specific time period. The criteria for Full Stability are designed to meet the published specifications. The criteria for Nominal Stability are designed to shorten the calibration time when an approximate calibration is acceptable.
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Aqua TROLL Operator’s Manual
55
“Aqua TROLL 200 Measurement Methodology” on the In-Situ software/ resource CD, or in the Downloads section of the In-Situ web site at www.
In-Situ.com.
actual Conductivity
Units: microSiemens per centimeter (µS/cm), default milliSiemens per centimeter (mS/cm) specific Conductivity
A means of expressing what the actual conductivity of a solution would be at a standard reference temperature (25°C). Calculated from actual conductivity and temperature. The factory default coefficients calculate specific conductivity per Standard Methods 2510B.
Units: microSiemens per centimeter (µS/cm), default milliSiemens per centimeter (mS/cm) salinity
Calculated from actual conductivity and temperature. Units: Practical
Salinity Units (PSU) total dissolved solids (tds)
Calculated from specific conductivity using a conversion factor (Default: 0.65).
The TDS conversion factor may be edited in Win-Situ as follows: Select the sensor on the Sensors tab, click Configure , in the next screen select the Total Dissolved Solids parameter and click Configure...
Enter a value between 0.001 and 10.000.
Units: parts per thousand (ppt), default parts per million (ppm)
0061340 rev. 003
seCtion 5: ConduCtivity 56 resistivity
The reciprocal (inverse) of the actual conductivity. Useful when monitoring pure water. Units: ohms-cm
TIP: Parameter configuration is not available if the device is polling or has an active log.
density of Water
Calculated from salinity and temperature. Units: g/cm 3
TIP: Measured density values may be used to dynamically compute specific gravity when measuring Level. See
Win-Situ Help or Section
6 of this manual for more information.
ShaLLoW depLoyment
When deploying the Aqua TROLL instrument in shallow water, bubble formation on the conductivity sensor can create false readings. We recommend the following to minimize the formation of bubbles:
4 Surface water: Gently agitate the instrument. Natural water flow will help to prevent bubbles.
4 Groundwater well or any location without flowing water, or where the instrument cannot be seen:
1. Lower the Aqua TROLL until it is below the surface of the water.
(Tip: This can be determined if not visible by monitoring the pressure/depth readings.)
2. Allow the conductivity sensor to be thoroughly wetted (at least 30 seconds).
3. Briskly agitate up and down several times, while not taking the device above the water surface.
4. When the conductivity readings stabilize, the Aqua TROLL is ready for deployment.
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 5: ConduCtivity 57 maIntenanCe and reCaLIbratIon
The need to clean the sensor is determined by the site conditions, and the accuracy you wish to achieve from the instrument. For example, when used in relatively clean water of low biological productivity, a conductivity sensor could maintain its accuracy specifications for several months.
On the other hand, in water with a high potential for biological or mineral fouling, the sensor may need to be cleaned and recalibrated more often.
Visual inspection and measurement results are the best indicators that a device needs service recalibration.
It is the user’s responsibility to develop and follow a maintenance program appropriate to the site. Most SOPs instruct that the instrument be checked in a known standard at the end of a deployment. After any cleaning that is performed, the calibration should always be checked before redeployment, and the sensor recalibrated when necessary.
For specific cleaning procedures, refer to the Care and Maintenance recommendations in Section 9.
Factory recalibration of the Aqua TROLL 200 should be performed every
12-18 months. Contact In-Situ Inc. as described on page 10 .
Aqua TROLL Operator’s Manual 0061340 rev. 003
58
6 preSSure and LeveL
The Aqua TROLL 200 contains a pressure sensor. A pressure transducer senses changes in pressure, measured in force per square unit of surface area, exerted by water or other fluid on an internal media-isolated strain gauge. Common measurement units are pounds per square inch (psi) or newtons per square meter (pascals).
non-vented (abSoLute) vS. vented (GauGed)
SenSorS
A non-vented or “absolute” pressure sensor measures all pressure forces exerted on the strain gauge, including atmospheric pressure. Its units are
psia (pounds per square inch “absolute”), measured with respect to zero pressure.
Non-vented pressure measurements are useful in vacuum testing, in short-term testing when atmospheric pressure would not be expected to change, in very deep aquifers where the effects of atmospheric pressure are negligible, and in unconfined aquifers that are open to the atmosphere.
With vented or “gauged” pressure sensors, a vent tube in the cable applies atmospheric pressure to the back of the strain gauge. The basic unit for vented measurements is psig (pounds per square inch “gauge”),
seCtion 6: pressure & level 59 measured with respect to atmos pheric pressure. Vented sensors thus exclude the atmospheric or barometric pressure component.
This difference between absolute and gauged measurements may be represented by a simple equation:
TIP: For more on the differences between Absolute
(non-vented) and Gauged
(vented) sensors, see the technical note on the
In-Situ software/resource
CD, or www.in-situ.com.
P gauge
= P absolute
– P atmosphere preSSure, depth, and LeveL
Output options for pressure measurement are completely softwareselectable. Each log configuration presents the following choices:
• Pressure in psi or kPa
• Depth in feet or meters
• Water Level with a reference (an “offset”)
4 Surface Elevation: positive up
4 Depth to Water (drawdown): positive down
For Depth and Level, the software presents additional options:
• The type of measurement you wish to log (the “output”)
• The Level Reference you wish to use
• The specific gravity of the water the device will be deployed in:
4 Choose a fixed value for fresh, brackish, or saline water, or
4 Enter a custom specific gravity value, or
4 Choose Fixed density with gravitational compensation for a pressure-to-level conversion that compensates pressure readings for fluid density and local gravitational factor (based on your latitude and elevation), or
4 Choose Dynamic density with gravitational compensation, which will allow the software to dynamically compute specific gravity using density measured by the Aqua TROLL’s conductivity sensor and local gravitational factor
Aqua TROLL Operator’s Manual 0061340 rev. 003
TIP: When you configure level using the
Sensors tab, the settings are stored in the Aqua
TROLL and are available for use in Modbus,
SDI-12, and analog communications, as well as in Win-Situ. Different configurations may be selected when setting up a log.
Sensors tab
ConFIGurInG depth and LeveL
This procedure stores the configuration settings in the Aqua TROLL.
When setting up a log, the same options are presented.
1. While connected to the Aqua TROLL in software, click the Sensors tab.
60
2. Select the sensor and click the “Configure” button .
TIP: Be sure to stop “polling” in the Home screen before configuring any sensor parameter.
Select the sensor
“Configure” button
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 6: pressure & level 61
3. In the Sensor Setup window, select the Level parameter, then click
Configure...
The Level parameter shown is the one currently stored in the device
(device’s default or the most recent choice). You will have a chance to change this in a moment.
TIP: Parameter configuration is not available if the device is polling or has an active log.
Select the
Level parameter
Click
Configure...
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 6: pressure & level 62
4. In the Level Setup Wizard, select the options you want. Each choice includes an illustration to assist you in selecting the output. For more information, see Win-Situ’s On-Line Help.
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 6: pressure & level 63
TIP: In a Level mode, any zero pressure offset is corrected automatically.
The field recalibration procedure is not necessary except when measuring pressure.
preSSure SenSor CaLIbratIon
Factory recalibration
Pressure sensor accuracy can be adversely affected by improper care and handling, lightning strikes and similar surges, exceeding operating temperature and pressure limits, physical damage or abuse, as well as normal drift in the device’s electronic components. Aside from damage to the sensor, the need for factory recalibration is dependent upon the amount of drift a customer is willing to tolerate. Factory calibration every
12-18 months is recommended. Contact In-Situ Customer Service for information on the factory maintenance and calibration plan.
Field recalibration
The following procedure may be used, with caution, to “zero” the offset of a vented pressure sensor to correct for electronic drift. The drifted offset is visible when the sensor is in air and reading other than zero.
It is recommended you do not zero the offset if it is outside the specified accuracy of your pressure sensor, as shown in the table below. If the reading in air deviates from zero by more than the amounts shown, you may want to consider a factory recalibration.
Sensor range
5 psi
15 psi
30 psi
100 psi
300 psi
500 psi
Accuracy
(0°C to +50°C)
± 0.1% FS
± 0.1% FS
± 0.1% FS
± 0.1% FS
± 0.1% FS
± 0.1% FS
Acceptable Offset
from zero
± 0.005 psi
± 0.015 psi
± 0.03 psi
± 0.10 psi
± 0.30 psi
± 0.50 psi
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 6: pressure & level 64
Field recalibration Procedure
1. With the Aqua TROLL connected in software, go to the Sensors tab.
2. Select the pressure sensor and click the “Calibrate” button
3. In the next screen, select the Pressure parameter and click
Calibrate...
4. In the next screen, select Zero the Level/Pressure sensor. Make sure the device is dry and exposed to air.
5. Click OK . The software will inform you when the pressure reading is set to zero.
.
Sensors tab
2 Select the sensor,
click “Calibrate”
3 Select Pressure, click Calibrate...
4 Select Zero the sensor
Aqua TROLL Operator’s Manual
5 Click OK
0061340 rev. 003
seCtion 6: pressure & level 65 barometrIC CompenSatIon oF non-vented preSSure/LeveL data
Win-Situ Baro Merge ™ software can post-correct absolute (nonvented) level sensor data to eliminate barometric pressure from the measurements. Baro Merge provides three options:
• Fixed Correction – A single offset value is applied to all selected log data. Use this option if you know what the barometric pressure was during the log, and know that it did not change.
• Manual Entry – Specify two or more correction values to apply to the log data. Use this option if you know that barometric pressure changed during the log.
• BaroTROLL ® log file – Absolute level sensor data are corrected by barometric pressure values logged by an In-Situ BaroTROLL instrument during the same general time period launching baro merge software
Baro Merge may be launched as a stand-alone application from the program group In-Situ Inc., or accessed from Win-Situ’s Tools menu when both are installed on the same system.
input
In the Fixed Correction and Manual Entry options, it is important to know the barometric pressure for the general time period covered by the log or logs you want to correct.
Baro Merge uses a Wizard-like interface consisting of three main steps:
1. First, choose the type of compensation/correction you wish to use
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 6: pressure & level 66
2. Then, choose the absolute (non-vented) log file or files you wish to correct. Baro Merge displays these automatically
3. Click OK and the barometric compensation is applied output
Your original log file is not changed. A new, corrected log file with the same name and path is created. The original “.wsl” extension is replaced by
“-BaroMerge.wsl”.
For help on using Win-Situ Baro Merge, press F1 at any Baro Merge screen.
For more detailed information on barometric compensation, see the technical notes on the In-Situ software/resource CD, or www.in-situ.com.
Aqua TROLL Operator’s Manual 0061340 rev. 003
7 FIeLd InStaLLatIon
Do not let the instrument free fall into the water as this may create a “water hammer” effect and damage the pressure sensor.
poSItIonInG the vented aqua troLL 200
For unattended deployment, lower the Aqua TROLL 200 instrument gently to approximately the desired depth. Position the instrument below the lowest anticipated water level, but not so low that its range might be exceeded at the highest anticipated level. Refer to the tables below for usable depth.
Check the instrument’s depth
At this point, if convenient, you can connect the Aqua TROLL 200 to a
PC, launch the software, and take a reading. If the instrument is at the
Vented Aqua TROLL
Range Usable Depth
psig kPa Meters Feet
5 34.5 0-3.5 0-11.5
15 103.4 0-11 0-35
30 206.8 0-21 0-69
100 689.5 0-70 0-231
300 2068 0-210 0-692
500 3447 0-351 0-1153
Non-Vented Aqua TROLL
Range Effective Range* psia psia
Usable Depth kPa Meters Feet
30
100
300
500
15.5 106.9 0-10.9 0-35.8
85.5 589.5 0-60.1 0-197.3
285.5
485.5
1968 0-200.7 0-658.7
3347 0-341.3
* At sea level (14.5 psi atmospheric pressure).
0-1120
67
seCtion 7: Field installation
Kellems grip desired depth, secure it in position as suggested below, or reposition as necessary.
If you requested the software to “Remind me later” to set a Level
Reference, enter the level reference after installation when prompted.
SeCure the CabLe
The RuggedCable ® has a handy device called a Kellems ® grip near the surface end. You can slide it along the cable to the desired position by compressing it. When you pull on it, it tightens and stops sliding. You may need to pull on both ends of the
Kellems grip to properly tighten it and keep it from slipping.
Use the loop of the Kellems grip to anchor the cable to a convenient stationary object. It works well with In-Situ’s “well dock” installation ring. Simply insert the loop into the locking clip on the well dock, and position the assembly on the top of a well.
InStaLLatIon tIpS
4 Never let a probe “free fall” down a well. The resulting shock wave when it hits the water surface can damage the strain gauge (the “waterhammer” effect).
4 It is always wise to check the level of water above the probe, then move it and read again to be sure that the probe is giving a reasonable reading and showing change. It might not be located where you think it is — for example, it could be wedged against the casing with a loop of cable hanging below it. A probe in such a position might become dislodged and
68
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 7: Field installation 69
The minimum bend radius for vented cable is
13.5 mm (0.54 in).
the cable connector; do not immerse in any fluid.
Do not sub merge
TIP: Be sure to replace the desiccant when it appears pink. Expired desiccant can allow water build up in the vent tube, causing a blockage resulting in inaccurate data.
move while logging, giving a false change in level. A secure placement is critical to accurate measurements.
4 Do not allow the vented cable to kink or bend. If the internal vent tube is obstructed, water level measurements can be adversely affected.
The recommended minimum bend radius is 13.5 mm (0.54 in), which is twice the cable diameter.
4 For accurate measurements, the instrument should remain immobile while logging data.
4 Be sure the “uphole” cable end is capped—desiccant on the vented cable connector, soft dust cap on non-vented cable—and positioned above the highest anticipated water level. Avoid areas that may flood when using vented cable.
StabILIzatIon tIme
Allow the Aqua TROLL instrument to stabilize to the water conditions for
about an hour before logging data. A generous stabilization time is always desirable, especially in long-term deployments. Even though the cable is shielded, temperature stabiliza tion, stretching, and unkinking can cause apparent changes in the level reading. A completely dry conductivity sensor may need a few minutes settling time after initial immersion. If you expect to monitor conductivity and water levels to the accuracy of the probe, allow time for the probe to stabilize to its environment.
ShaLLoW depLoyment
When deploying the Aqua TROLL instrument in shallow water, bubble formation on the conductivity sensor can create false readings. We recommend the following to minimize the formation of bubbles:
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 7: Field installation 70
TIP: Be sure to program a non-vented Aqua
TROLL before attaching the Twist-Lock hanger, as this accessory has no communication capability.
DO NOT submerge a non-vented
Aqua TROLL without first attaching a Twist-Lock hanger, or a cable, as the unit could be damaged by flooding.
4 Surface Water: Gently agitate the instrument. Natural water flow will help to prevent bubbles.
4 Groundwater Well, or any location without flowing water or where the instrument cannot be seen:
1. Lower the Aqua TROLL instrument until it is below the surface of the water. (Tip: This can be determined if not visible by monitoring the pressure/depth readings.)
2. Allow the conductivity sensor to be thoroughly wetted (at least 30 seconds).
3. Briskly agitate up and down several times, while not taking the device above the water surface.
4. When the conductivity readings stabilize, the Aqua TROLL is ready for deployment.
InStaLLatIon oF a non-vented aqua troLL
Aqua TROLL 100 and non-vented Aqua TROLL 200 instruments do not require vented cable for proper operation. They may be deployed on non-vented RuggedCable or with a Twist-Lock Hanger and stainless steel suspension wire.
• Because the Twist-Lock Hanger has no communication capabilities, program the Aqua TROLL in advance, and download the data the same way
• Logged pressure data will show the effects of changes in barometric pressure (unlike vented Aqua TROLL 200 sensors).
However, post-processing tools such as Win-Situ Baro Merge may be used to eliminate the effects of barometric pressure changes from the data, if required.
Aqua TROLL Operator’s Manual 0061340 rev. 003
71
8 anaLoG, SdI-12 and modbuS ConneCtIonS
The Aqua TROLL instrument may be connected to a controller or logger for communication via:
• Analog (4-20 mA) provides a configurable 4-20 mA current loop output
• SDI-12
• RS485 Modbus
• RS232 Modbus (with a customer-supplied converter)
RuggedCable Stripped & Tinned has a “female” Twist-Lock connector on one end to mate with the Aqua TROLL body. The uphole end terminates in bare wires for connection to a PLC or data logger.
Also available in a shorter length ending in a “male” Twist-Lock connector to mate with RuggedCable.
seCtion 8: analoG, sdi-12, modbus
PLC or Logger
Stripped & Tinned Cable with “female” connector
PLC or Logger
Short Stripped & Tinned Cable with “male” connector
72
RuggedCable
Aqua TROLL
Aqua TROLL Operator’s Manual
Aqua TROLL
0061340 rev. 003
seCtion 8: analoG, sdi-12, modbus 73 deSICCant
Vented cable includes removable outboard desiccant to protect the cable vent tube and Aqua TROLL electronics from condensation in high-humidity environments.
The desiccant may be removed from the vent tube, if needed, to trim the conductor wires. Pull the vent tube extender off the cable vent tube to remove, replace desiccant after trimming and connecting the wires.
Outboard desiccant is attached to cable vent tube and secured to cable with strap
WIrInG
Refer to diagrams on the following pages. Trim back and insulate unused wires. The shield should be wired to a chassis ground or earth ground.
Signal
RuggedCable (TPU)
Color Pin
Gnd/Return BLACK
Ext Power RED
4-20 mA BROWN 4
RS485(–) GREEN 3
6
5
RS485(+)
SDI-12
BLUE
WHITE
2
1 m
1 f
6 m
2 f
5 m
3 f
4
Signal
Tefzel Cable
Color
Gnd/Return
Ext Power
4-20 mA
RS485(–)
RS485(+)
SDI-12
BLACK
RED
BROWN
GREEN
ORANGE
YELLOW
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 8: analoG, sdi-12, modbus anaLoG (4-20 ma) 3 WIre
PLC or Data Logger
ExT PWR red
+
12-36 VDC
signal
4-20 mA brown
GND/RETURN black
74
Aqua
TROLL
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 8: analoG, sdi-12, modbus
SdI-12 3 WIre
Data Logger
9.6-16 VDC
SDI-12 whITe
ExT PWR red
*
GND/RETURN black
RS485 (–) green
RS485 (+) blue
**
* Yellow for Tefzel cable
** Orange for Tefzel cable
Max. cable length 200 ft
SDI-12 sensor
75
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 8: analoG, sdi-12, modbus modbuS maSter with RS485 built in
Digital PLC
ExT PWR red
12-36 VDC
*
GND/RETURN black
RS485 (–) green
RS485 (+) blue
**
* Optional but highly recommended
** Orange for Tefzel cable
Modbus
Slave
Aqua TROLL Operator’s Manual
76
0061340 rev. 003
seCtion 8: analoG, sdi-12, modbus modbuS maSter with RS232 built in (converter required)
Digital PLC
ExT PWR red
12 VDC*
GND/RETURN black
RS232 (TxD)
RS232 (RxD)
Gnd +12V RS485 (–) green
RS485 (+) blue
**
Converter
* Voltage limited by converter
** Orange for Tefzel cable
Converter
Port-powered RS485 converter, such as B&B Electronics Model
485SD9TB
ExT PWR red
***
GND/RETURN black
***
RS485 (+) blue
**
RS485 (–) green pin
5 gnd pin
3 txd pin
2 rxd
Modbus
Slave
***Required if port power is not available
77
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 8: analoG, sdi-12, modbus 78 poWer ConneCtIonS
The Red wire provides power for all Aqua TROLL modes. Analog output is disabled by default. However, the 4-20 mA current loop output can be continuous in Modbus or SDI-12 mode as long as Modbus device register
49507 is set to 1. This can be done with a connection in Win-Situ by selecting the Device Setup tab, Analog Setup button, and enabling analog output.
CommunICatIonS
The device automatically switches between Modbus and SDI-12 modes depending on which of the two interfaces has activity. Modbus and SDI-12 cannot be used at the same time — whichever one is currently in use will block communication on the other.
using Win-situ software
Win-Situ provides options for configuring analog/SDI-12 communications
(Setup tab) and Modbus communications (File menu > Settings). In addition, the Aqua TROLL is capable of internal logging (programmed in Win-Situ) while participating in a Modbus, SDI-12, or analog network.
However, Win-Situ cannot communicate with the Aqua TROLL while it is trans mitting Modbus, SDI-12, or analog data, and conversely, the instrument cannot receive or respond to Modbus, SDI-12, or analog commands while connected to a PC serial port.
This “redundant logging” feature means:
• If the PLC or recorder somehow “loses” data, the Aqua TROLL data can be retrieved using Win-Situ.
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 8: analoG, sdi-12, modbus 79
• If the PLC or recorder ceases to function due to power loss, the Aqua
TROLL will continue to collect data using its own internal batteries and clock.
A port-powered RS485 converter like that shown for Modbus connections may be used for temporary connection of the Aqua TROLL to a serial port on a PC.
For more InFormatIon
For additional information on Modbus and SDI-12 communications, including the SDI-12 commands and Modbus registers, see these In-Situ technical notes:
• SDI-12 Commands and Aqua TROLL Responses. November 2006.
• In-Situ Modbus Communication Protocol. Bill Bonner, Senior
Software Engineer, In-Situ Inc., version 6, January 2007.
They are available on the In-Situ software/resource CD and at www.
in-situ.com.
Aqua TROLL Operator’s Manual 0061340 rev. 003
80
9 Care & maIntenanCe
operatInG ConSIderatIonS
The Aqua TROLL instrument has been designed to withstand harsh field conditions. However, as with any electronic instrument, it can be permanently damaged if used outside its operating specifications.
temperature
The Aqua TROLL temperature sensor operates within a temperature range of -20° to +65°C (-4° to +149°F).
Pressure range
The Aqua TROLL 200 can withstand pressures of up to two times (2X) the rated range of the pressure sensor without damage, although it may not read correctly at such pressure. If the pressure range is exceeded by 3X, the pressure sensor will be destroyed.
Factory Calibration
Accuracy can be adversely affected by improper care and handling, lightning strikes and similar surges, exceeding operating temperature and pressure limits, physical damage or abuse. Factory calibration every
12-18 months is recommended. Contact In-Situ Customer Service for information on the factory maintenance and calibration plan.
seCtion 9: Care & maintenanCe the cable connector; do not immerse in any fluid.
Do not sub merge
TIP: Be sure to replace the desiccant when it appears pink. Expired desiccant can allow water build up in the vent tube, causing a blockage resulting in inaccurate data.
The minimum bend radius for vented cable is
13.5 mm (0.54 in).
81
StoraGe
Store the Aqua TROLL instrument clean and dry. Place the protective red dust cap on the cable end, or store with cable attached to protect the connector pins and o-ring.
Store the instrument where it will be safe from mechanical shocks, such as may occur if it rolls off a bench onto a hard surface.
Protect the instrument from temperature extremes. Store within a temperature range of -40°C to +65°C (-40°F to +149°F).
GeneraL maIntenanCe twist-lock Connectors
Keep the pins on all connectors free of dirt and moisture by using the soft protective dust cap when cable is not attached.
Cable vent tube (vented Cable)
Vented cable assures that atmospheric pressure is the reference pressure to the vented pressure sensor diaphragm. The vent tube should not be
blocked, kinked, or otherwise obstructed. Such obstructions will cause barometric pressure to appear in measurements, and errors will be introduced due to thermal expansion and contraction of air within the vent tube and probe body.
The recommended minimum bend radius is
13.5 mm (0.54 in), which is twice the cable diameter.
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 9: Care & maintenanCe
Aqua TROLL 200 front end with nose cone in place
82
TIP: If batteries are completely exhausted, remember that external power and battery pack options are available.
When the nose cone is removed from the Aqua
TROLL 200, the sensitive pressure sensor diaphragm is completely exposed. Do not touch this area with any object! Replace the nose cone as soon as possible. batteries
Internal batteries in the Aqua TROLL are not user-replaceable. The approximate percentage remaining is displayed on the software’s
Dashboard when the Aqua TROLL is connected.
CLeanInG body and Front end
Clean the Aqua TROLL body with water and a soft brush or plastic scouring pad, or soak overnight in a mild acidic solution, such as household vinegar.
If the pressure ports of the Aqua TROLL 200 in the front end are clogged with silt or mud, try the following:
• Swish the instrument vigorously in a bucket of clean water
• Apply a gentle squeeze of water from a wash bottle
• In severe cases, remove the nose cone and clean out the holes with a soft brush or pipe cleaner
Damage caused by digging or scraping in the pressure sensor opening to remove silt, mud, etc. is not covered by the warranty.
To avoid damage to the pressure sensor diaphragm, do not insert any object into the sensor opening or attempt to dig out dirt or other materials.
Nose cone removed
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seCtion 9: Care & maintenanCe 83
Conductivity sensor
Fouling from mineral and biological sources can alter the sensor’s response.
4 Always begin with a rinse under running water to remove loose material.
4 Always finish with a rinse in clean water.
4 After cleaning, always check the calibration before redeployment, and recalibrate the sensor when necessary.
Acceptable cleaning processes fall into the following categories:
TIP: Foam swabs are shipped with the Aqua TROLL; replacements are available from In-Situ Inc. (Catalog
No. 0056820).
Process 1: Light scrubbing with a soft swab and mild soap such as a dilute solution of dish detergent. Be careful not to damage the plastic material of the conductivity cell. Aqua TROLL instruments are shipped with polyurethane foam swabs for this purpose. We have also seen good results using a gentle back-and-forth
“flossing” motion with a thin cotton pipe cleaner.
Process 2: Light scrubbing with a foam swab and an aggressive soap such as Alconox ® detergent can be used for more stubborn deposits.
TIP: Alconox ® is available from In-
Situ Inc. (Catalog
No. 0029810).
Process 3: Dilute (10:1) acetic acid, or consumer-packaged white vinegar, can be used to pre-soften calcium deposits. Follow this with Process 1 or Process 2, depending on the degree of residual contamination. The
Aqua TROLL can soak for any length of time in dilute acetic acid. If this does not completely remove the material, try Process 4.
DO NOT SOAK in phosphoric acid or Lime-
A-Way ® for more than 10 minutes.
Process 4: Dilute phosphoric acid (< 27%) or the consumer product
Lime-A-Way ® can be topically applied with a soft swab to remove iron or calcium deposits that remain after using Process 3. Do not soak for more than 10 minutes. Rinse well with water.
If contamination cannot be removed using the recommendations above, please contact In-Situ Inc. as described on page 10.
Aqua TROLL Operator’s Manual 0061340 rev. 003
84
10 troubLeShootInG
troubLeShootInG ConneCtIonS
Problem: Win-Situ cannot connect to the Aqua TROLL instrument.
Probable Cause: Wrong COM port selected, incompatible
Communication settings, loose or dirty cable connections, low batteries
Suggested Remedy: Check the following:
• All cable connections are tight, connectors are clean and dry.
• The cable is securely attached to the instrument.
• The correct COM port is selected (select Preferences menu >
Comm Settings to check this).
• The communication settings in Win-Situ and in the Aqua TROLL match. To reset the device communication settings to the serial defaults, click “Reset all Devices” in the Comm Settings dialog
(Preferences menu > Comm Settings)
• The internal battery has voltage remaining or external power is supplied.
seCtion 10: troubleshootinG 85
Problem: Real-time readings are in the wrong units.
Probable Cause: Default units are being used.
Suggested Remedy: Click the Sensors tab, select the sensor, click the
“Configure” button , and select the desired units for each parameter in the Sensor Setup window. Click OK stop “polling” in the Home screen before selecting units.
. Be sure to troubLeShootInG data LoGS
Problem: Cannot add a new log
Probable Cause 1: Only one “active” log can reside in the device at a time—an “active” log is a log that is Ready, Pending, Running, or
Suspended as shown in the Status column of the Logging Tab
Suggested Remedy: Stop or delete the log if possible. Alternatively, configure the new log after the active log is completed.
Probable Cause 2: The device has its maximum number of logs already stored—although this is not a likely cause for the Aqua TROLL 200, which has a capacity of 50 logs.
Suggested Remedy: Download, and then delete a log you are through with. This will make room for an additional log on the device.
Problem: New log exceeds available memory (message from software).
Probable Cause: The log as configured would exceed the device memory.
Suggested Remedy: Edit the log and try these:
• Select a longer sampling interval .
• If available, select the “Wrap data” option (later data will overwrite earlier data when the memory is full).
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 10: troubleshootinG 86
• For a log with a scheduled start, select “None” as the stop condition, or select a stop time that is closer to the start time.
You may intend to stop the log before the scheduled end date arrives, but the software doesn’t know that.
troubLeShootInG parameter ConFIGuratIon
Problem: Cannot configure level or other parameters using the Configure button on the Sensors tab. The Sensor setup screen is shown, but the
Configure... button is dimmed out.
Probable Cause 1: The Aqua TROLL is actively “polling” (continually updating real-time readings) in the Home tab.
Suggested Remedy: Return to the Home tab and stop real-time readings by clicking
Probable Cause 2: The Aqua TROLL has an “active” log—a log that is Ready, Pending, Running, or Suspended as shown in the Status column of the Logging Tab. Only one “active” log can reside in the device at a time.
Suggested Remedy: Stop or delete the log if possible. Alternatively, configure parameters after the log is completed.
troubLeShootInG ConduCtIvIty CaLIbratIon
Problem: The calculated cell constant (Kcell) is lower than the recommended range of 0.98 – 1.02.
Probable Cause: The electrical resistance of the calibration solution was lower than expected for the nominal value.
Suggested Remedy: Check the following and then repeat the calibration:
• Visually inspect the sensor for the presence of fouling (most likely conductive material, possibly a bio-film); clean as described in Section 9 of this manual.
Aqua TROLL Operator’s Manual 0061340 rev. 003
seCtion 10: troubleshootinG 87
• Ensure the calibration solution is not contaminated, mislabeled, or partially evaporated.
• Rinse the Aqua TROLL and the Cal Cup thoroughly with fresh calibration solution before calibrating.
Problem: The calculated cell constant (Kcell) is higher than the recommended range of 0.98 – 1.02.
Probable Cause: The electrical resistance of the calibration solution was higher than expected for the nominal value, or an air bubble was present in the sensing cell during calibration.
Suggested Remedy: Check the following and then repeat the calibration:
• Visually inspect the sensor for the presence of fouling (most likely an obstructing material or organism); clean as described in
Section 9 of this manual.
• Ensure the calibration solution is not contaminated, mislabeled, or partially diluted.
• Rinse the Aqua TROLL and the Cal Cup thoroughly with fresh calibration solution before calibrating.
• “Roll and tap” the Aqua TROLL in the Cal Cup to dispel air bubbles as described and illustrated in Section 5.
Aqua TROLL Operator’s Manual 0061340 rev. 003
88
Index
A
AC adapter, 19
Accessories, 20
Active log, 44, 85, 86
ActiveSync, 21
Analog (4-20 mA) output enabling, 78 wiring, 74
B
Barometric pressure compensation, 65–66
Batteries, external, 19
Batteries, internal, 19, 82
C
Cable, 14 bend radius, 69, 81 communication cables, 18
Kellems grip, 68 non-vented cable, 70 stripped & tinned, 16, 71, 72 suspension wire, 14, 16, 70
TROLL Com, 46 vented cable, 58, 69, 81
Calibration conductivity, 42, 48, 86–87 nominal stability, 54 pressure sensor, 63
Cell constant, 48, 53, 54, 86–87
Cleaning, 57, 82 conductivity sensor, 83 decontamination, 12
Clock displaying
Clock, setting, 37
Conductivity, 47–57 about, 47 actual, 55 available parameters, 55 calibration, 42, 48, 86–87 shallow deployment, 56, 69 specific, 55
Conductivity sensor, 42, 48 cleaning, 83
Continuous button (Profiler)
D
Data graphing, 45 logging, 43 viewing, 45
Decimal places displayed in Home screen, 36
Declaration of Conformity, 91
Density, 59
Depth, measuring, 59
Desiccant, 17, 46, 69, 81 outboard, 73
F
Factory recalibration, 63
H
Hanger, twist-lock, 20, 70
Home tab (Win-Situ), 35 customizing, 36
I
Installation, 67–69
indeX accessories for, 20 in shallow water, 56, 69 non-vented, 70 software, 28
L
Level, measuring, 59
Local gravitational factor, 59
Log, active, 44, 85, 86
Logging data downloading, 45 redundant logging, 78–79 setting up, 43 starting to log, 45
Logging tab (Win-Situ), 43
M
Maintenance, 81–83
Maintenance & calibration service, 10, 63
Microsoft ActiveSync, 21
Modbus communication, 78 power, 78 registers, 79 wiring, 76, 77
N
Nominal stability, 54
Non-vented Aqua TROLL, 44, 70 data correction, 65–66
Nose cone, 50, 82
P
Polling, 35
Poll rate, changing, 36
Pressure, measuring, 59
Pressure range, 80 usable depth, 24, 67
Pressure sensor absolute vs. gauged, 58 calibration, 63 do not touch!, 50, 82 non-vented vs. vented, 58 zeroing, 63–64
Product specifications, 22
Profiling, 35 psia, 58 psig, 58
R
Real-time readings, 35 units, 36 update rate, 36
Repair service, 11
Reset communications, 84
Resistivity, 56
RMA, 11
S
Salinity, 55
SDI-12 commands, 79 communication, 78 power, 78
Aqua TROLL Operator’s Manual wiring, 75
Sensors tab (Win-Situ), 60, 64
Serial number, 8
Site, 38
Specifications, 22
Specific conductivity, 55
Specific gravity, 59
Storage, 81
T
TDS, 56
Temperature range, 80
Thermal stabilization, 69
Time, setting, 37
Total Dissolved Solids, 56
TROLL Com removing, 46
Troubleshooting, 84–87
U
Units, 36, 85
V
Vented cable, 58 bend radius, 69, 81
W
Warranty, 10
Win-Situ, 21
BaroMerge, 65–66
Control Panel, 35
Dashboard, 35
89
0061340 rev. 003
indeX exiting, 46 installing, 28 logging data, 43 redundant logging, 78–79 site, 38
Software Manager, 28 system requirements, 21 tabs, 35
Win-Situ Mobile, 21, 28
Wiring analog (4-20 mA), 74
Modbus RS232, 77
Modbus RS485, 76
SDI-12, 75
90
Aqua TROLL Operator’s Manual 0061340 rev. 003
Declaration of Conformity
Manufacturer: In-Situ, Inc.
221 East Lincoln Avenue
Fort Collins, CO 80524
USA
Declares that the following product:
Product name:
Model:
Aqua TROLL
Aqua TROLL 200
Product Description: The Aqua TROLL 200 measures and logs level, temperature, and conductivity in natural groundwater and surface water. is in compliance with the following Directives:
89/336/EEC for Electromagnetic Compatibility (EMC) Directive
73/23/EEC for Safety Directive and meets or exceeds the following international requirements and compliance standards:
• Immunity
EN 61326:1997, Electric Equipment for Measurement, Control and Laboratory Use
• Emissions
Class A requirements of EN 61326:1997, Electric Equipment for Measurement, Control and Laboratory Use
Supplementary Information:
The device complies with the requirements of the EU Directives 89/336/EEC and 73/23/EEC, and the CE mark is affixed accordingly.
Todd Campbell
New Product Development Program Manager
In-Situ, Inc.
October 17, 2006
Declaration of Conformity
Manufacturer: In-Situ, Inc.
221 East Lincoln Avenue
Fort Collins, CO 80524
USA
Declares that the following product:
Product name:
Model:
Product Description:
Aqua TROLL
Aqua TROLL 100
The Aqua TROLL 100 measures and logs temperature and conductivity in natural groundwater and surface water. is in compliance with the following Directives:
89/336/EEC for Electromagnetic Compatibility (EMC) Directive
73/23/EEC for Safety Directive and meets or exceeds the following international requirements and compliance standards:
Immunity
EN 61326:1997, Electric Equipment for Measurement, Control and Laboratory Use
Emissions
Class A requirements of EN 61326:1997, Electric Equipment for Measurement, Control and Laboratory Use
Supplementary Information:
The device complies with the requirements of the EU Directives 89/336/EEC and 73/23/EEC, and the CE mark is affixed accordingly.
Bob Blythe
President and CEO
In-Situ Inc.
September 5, 2008
Declaration of Conformity
Manufacturer: In-Situ, Inc.
221 East Lincoln Avenue
Fort Collins, CO 80524
USA
Declares that the following product:
Product name:
Model:
TROLL Com
USB TROLL Com
Product Description: RS485 to USB converter is in compliance with the following Directive
89/336/EEC for Electromagnetic Compatibility (EMC) Directive
73/23/EEC for Safety Directive and meets or exceeds the following international requirements and compliance standards:
• Immunity
EN 61326, Electrical Equipment for Measurement, Control and Laboratory Use, Industrial
Location
• Emissions
Class A requirements of EN 61326, Electrical Equipment for Measurement, Control and
Laboratory Use
Supplementary Information:
The device complies with the requirements of the EU Directives 89/336/EEC and 73/23/EEC, and the CE mark is affixed accordingly.
Todd Campbell
New Product Development Program Manager
In-Situ, Inc.
June 17, 2006
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Key features
Compact, modular design
Measures conductivity and temperature
Aqua TROLL 200 also measures level
Data logging capabilities
Easy-to-use software for programming and data download
Long battery life
Frequently asked questions
Several basic cable types are used in the Aqua TROLL system: RuggedCable®, TPU-jacketed (Thermoplastic Polyurethane), vented or non-vented, Vented Tefzel®-jacketed cable (ETFE fluoropolymer), Poly-coated stainless steel suspension wire for deployment of a non-vented instrument, Communication cables for programming the device/downloading the logged data.
Vented cable must be used with vented pressure/level sensors (gauged measurements) on the Aqua TROLL 200. The cable vent tube ensures that atmospheric pressure is the reference pressure applied to the sensor diaphragm. Non-vented cable may be used with non-vented pressure/level sensors (absolute measurements) on the Aqua TROLL 100 or 200 instruments. Vented cable can also be used.
You can connect the Aqua TROLL to the computer using a TROLL Com, which is a device that interfaces between the sensor and the computer. There are two types of TROLL Coms: Direct Connect and Cable Connect. Direct Connect TROLL Coms connect directly to the Aqua TROLL, while Cable Connect TROLL Coms connect to the Aqua TROLL’s RuggedCable.
