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AMI Oxytrace
AMI Oxytrace QED
Version 6.20 and higher
A-96.250.531 / 300617
Customer Support
SWAN and its representatives maintain a fully trained staff of technical specialists around the world. For any technical question, contact your nearest
SWAN representative, or the manufacturer:
SWAN ANALYTISCHE INSTRUMENTE AG
Studbachstrasse 13
8340 Hinwil
Switzerland
Internet: www.swan.ch
E-mail: [email protected]
Document Status
Title:
Monitor AMI Oxytrace QED Operator’s Manual
ID:
A-96.250.531
Revision Issue
00 Jan. 2008 First Edition
01
02
Nov. 2008
July 2011
Including AMI Oxytrace QED
Chapter Quality Assurance added
03
04
Oct. 2013
Sept. 2016
New mainboard V2.4, update to FW Release 5.4
New mainboard V2.5, update to FW Release 6.20
© 2016, SWAN ANALYTISCHE INSTRUMENTE AG, Switzerland, all rights reserved subject to change without notice.
AMI Oxytrace QED
Table of Contents
Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Safety Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Description of the System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Instrument Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Single Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.4.1 AMI Oxytrace Transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.4.2 Sensor OXYTRACE G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.4.3 QV-Flow PMMA OTG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.4.4 B-Flow SS316L OTG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Installation Check List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Mounting of Instrument Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Connecting Sample Inlet and Outlet. . . . . . . . . . . . . . . . . . . . . . . 23
3.3.1 Swagelok Fitting Stainless Steel at Sample Inlet . . . . . . . . . . . . . 23
3.3.2 FEP Tube at Sample Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Install the Swansensor Oxytrace G . . . . . . . . . . . . . . . . . . . . . . . 24
Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.5.1 Electrical Connection Diagram AMI Oxytrace . . . . . . . . . . . . . . . 27
3.5.2 Electrical Connection Diagram AMI Oxytrace QED . . . . . . . . . . . 28
Relay Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Signal Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.8.1 Signal output 1 and 2 (current outputs) . . . . . . . . . . . . . . . . . . . . 33
Interface Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.9.2 Profibus, Modbus Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.9.3 HART Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Instrument Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Establish Sample Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
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1
AMI Oxytrace QED
2
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Software Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing Parameters and values. . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stop of Operation for Maintenance . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance of the Oxygen Sensor . . . . . . . . . . . . . . . . . . . . . . .
6.3.1 Electrolyte exchange. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3.2 Clean Swansensor Oxytrace G and Flow Cell . . . . . . . . . . . . . . .
Maintenance of the Faraday electrode . . . . . . . . . . . . . . . . . . . . .
Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Zero-Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Faraday Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Quality Assurance of the Instrument. . . . . . . . . . . . . . . . . . . . . . .
6.8.1 Activate SWAN Quality assurance procedure . . . . . . . . . . . . . . .
6.8.3 Connect the sample lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.8.4 Carry out comparison measurement. . . . . . . . . . . . . . . . . . . . . . .
6.8.5 Completion of the measurement. . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.10. Longer Stop of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Error List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Program Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Messages (Main Menu 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostics (Main Menu 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance (Main Menu 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation (Main Menu 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation (Main Menu 5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Program List and Explanations . . . . . . . . . . . . . . . . . . . . . . . . .
1 Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Material Safety Data sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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AMI Oxytrace QED
Default Values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
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3
AMI Oxytrace QED
Safety Instructions
AMI Oxytrace QED -
Operator’s Manual
This document describes the main steps for instrument setup, operation and maintenance.
1.
Safety Instructions
General
The instructions included in this section explain the potential risks associated with instrument operation and provide important safety practices designed to minimize these risks.
If you carefully follow the information contained in this section, you can protect yourself from hazards and create a safer work environment.
More safety instructions are given throughout this manual, at the respective locations where observation is most important.
Strictly follow all safety instructions in this publication.
Target audience
Operator: Qualified person who uses the equipment for its intended purpose.
Instrument operation requires thorough knowledge of applications, instrument functions and software program as well as all applicable safety rules and regulations.
OM Location
The AMI Operator’s Manual shall be kept in proximity of the instrument.
Qualification,
Training
To be qualified for instrument installation and operation, you must:
read and understand the instructions in this manual as well as the Material Safety Data Sheets.
know the relevant safety rules and regulations.
4
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AMI Oxytrace QED
Safety Instructions
1.1.
Warning Notices
The symbols used for safety-related notices have the following significance:
DANGER
Your life or physical wellbeing are in serious danger if such warnings are ignored.
Follow the prevention instructions carefully.
WARNING
Severe injuries or damage to the equipment can occur if such warnings are ignored.
Follow the prevention instructions carefully.
CAUTION
Damage to the equipment, minor injury, malfunctions or incorrect process can be the consequence if such warnings are ignored.
Follow the prevention instructions carefully.
Mandatory
Signs
The importance of the mandatory signs in this manual.
Safety goggles
Safety gloves
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AMI Oxytrace QED
Safety Instructions
Warning Signs
The importance of the warning signs in this manual.
Electrical shock hazard
Corrosive
Harmful to health
Flammable
Warning general
Attention general
6
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AMI Oxytrace QED
Safety Instructions
1.2.
General Safety Regulations
Legal
Requirements
Spare Parts and
Disposables
The user is responsible for proper system operation.
All precautions must be followed to ensure safe operation of the instrument.
Use only official SWAN spare parts and disposables. If other parts are used during the normal warranty period, the manufacturer’s warranty is voided.
Modifications
Modifications and instrument upgrades shall only be carried out by an authorized Service Technician. SWAN will not accept responsibility for any claim resulting from unauthorized modification or alteration.
WARNING
Risk of Electrical Shock
If proper operation is no longer possible, the instrument must be disconnected from all power lines, and measures must be taken to prevent inadvertent operation.
To prevent from electrical shock, always make sure that the ground wire is connected.
Service shall be performed by authorized personnel only.
Whenever electronic service is required, disconnect instrument power and power of devices connected to.
– relay 1,
– relay 2,
– alarm relay
WARNING
For safe instrument installation and operation you must read and understand the instructions in this manual.
WARNING
Only SWAN trained and authorized personnel shall perform the tasks described in this document.
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7
AMI Oxytrace QED
Product Description
2.
Product Description
This manual describes the functions of the following monitors
AMI Oxytrace
AMI Oxytrace QED
Both monitors are mainly identical except that AMI Oxytrace QED includes a faraday verification.
2.1.
Description of the System
Application
AMI Oxytrace is used to measure low levels of oxygen in high-purity water. Especially in power plant water cycles (e.g. feedwater), a very low level of oxygen is needed to prevent corrosion.
Measuring principle
Clark principle:
The sensor consists of one noble metal electrode (e.g. platinum or gold), a reference electrode (mostly Ag/AgCl) and optionally a metal guard electrode.
The Clark-type electrode is the most widely used oxygen sensor for measuring oxygen dissolved in a liquid. The basic principle is that there is a cathode and an anode submersed in an electrolyte and a voltage is applied between the two parts. Oxygen enters the sensor through a permeable membrane by diffusion, and is reduced at the cathode according to
-
O
2
+ 4e
-
+ 2 H
2
O --> 4 OH
This reaction creates a measurable current. There is a linear correlation between the oxygen concentration and the electrical current.
The guard electrode is on the same voltage level as the cathode but there is no current measurement. Oxygen which diffuses from the electrolyte to the cathode is consumed by the guard electrode.
As a consequence, residual oxygen in the electrolyte will no more disturb the measurement signal and the response time to low oxygen levels will be shorter.
Temperature compensation
The measuring signal depends on temperature, but is automatically compensated to 25 °C. The sample temperature is determined continuously by a temperature sensor inside the oxygen electrode.
8
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AMI Oxytrace QED
Product Description
40
35
30
5
0
25
20
15
10
Faraday
Verification
For AMI Oxytrace QED only.
When a direct current is passed through water by means of two electrodes, electrolysis of the liquid takes place, according to the laws of Michael Faraday. Water is converted to molecular oxygen and hydrogen.
Thus, by controlling the current, a fixed, known amount of oxygen, which is independent of temperature and pressure, may be generated. If the sample flow is known, an exact oxygen concentration increment can be generated at low levels. This increment is used to verify the flawless operation of the whole system. Thereby the response characteristics (incremental change and response time) of the sensor are taken into account. Sensor failures (loss of electrolyte etc.) can be detected very easily as shown in the plot below.
operational sensor defective sensor
30 60 90 120 150 180 210 240 270 300 330
Time [Sec]
Unusual sensor performance is recognized immediately and gives also a maintenance indication to the operator/user. The faraday verification is therefore an excellent QA/QC tool.
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9
AMI Oxytrace QED
Product Description
Signal
Outputs
Two signal outputs programmable for measured values (freely scaleable, linear or bilinear) or as continuous control output (control parameters programmable).
Current loop:
Maximal burden:
0/4–20 mA
510
Third signal output available as an option.
Relay
Two potential-free contacts programmable as limit switches for measuring values, controllers or timer for system cleaning with automatic hold function. Both contacts can be used as normally open or normally closed.
Maximum load: 1 A/250 VAC
Alarm Relay
One potential free contact.
Alternatively:
Open during normal operation, closed on error and loss of power.
Closed during normal operation, open on error and loss of power.
Summary alarm indication for programmable alarm values and instrument faults.
Input
For potential-free contact to freeze the measuring value or to interrupt control in automated installations (hold function or remote-off)
Safety
Features
No data loss after power failure. All data is saved in non-volatile memory. Over voltage protection of in- and outputs.Galvanic separation of measuring inputs and signal outputs.The analyzer is factory tested and ready for installation and operation.
Communication Interface
(optional)
USB Interface for logger download
RS485 with Fieldbus protocol Modbus or Profibus DP.
HART interface
10
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AMI Oxytrace QED
Product Description
Fluidics
AMI Oxytrace
Swansensor oxygen combined with QV-flow PMMA OTG flow cell.
The sample flows via sample inlet [G] through the flow regulating valve [D], where the flow rate can be adjusted. Then the sample flows into the measuring cell [C] were the Oxygen concentration and temperature of the sample is measured.
The sample leaves the measuring cell via flow sensor [B] through the sample outlet [E] and the drain funnel [F].
A
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D
E
F
B
C
A
B
C
D
Oxygen sensor
Flow sensor
Flow cell
Flow regulating valve
G
E
F
G
Sample outlet
Drain funnel
Sample inlet
11
AMI Oxytrace QED
Product Description
Fluidics
AMI Oxytrace QED
Swansensor oxygen combined with QV-flow PMMA OTG flow cell.
The sample flows via sample inlet [H] through the flow regulating valve [E], where the flow rate can be adjusted. Then the sample flows through the faraday electrode [D] into the measuring cell [C] were the Oxygen concentration of the sample is measured.
The sample leaves the measuring cell via flow sensor [B] through the sample outlet [F] and the drain funnel [G].
A
12
A
B
C
D
Oxygen sensor
Flow sensor
Flow cell
Faraday electrode
B
C
D
E
F
G
H
E
F
G
H
Flow regulating valve
Sample outlet
Drain funnel
Sample inlet
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AMI Oxytrace QED
Product Description
2.2.
Technical Data
Power Supply
Voltage:
Power consumption:
Electronics
Aluminium with a protection degree of IP 66 / NEMA 4X
housing
Ambient temperature:
Humidity:
Display:
-10 to +50 °C
10–90% rel., non condensing backlit LCD, 75 x 45 mm
Sample requirements
100–240 VAC (± 10%)
50/60 Hz (± 5%) or 24 VDC (± 10%) max. 30 VA
Flow cell and connection
On-Site requirements
Flow rate:
Temperature:
Inlet pressure:
Outlet pressure pH:
Suspended solids:
Sample outlet:
8–25 l/h
15–45 °C
0.2 to 1 bar pressure free not lower than pH 4 less than 10 ppm
Flow cell made of acrylic glass with built-in flow adjustment valve and digital sample flow meter
Sample inlet:
Sample outlet:
1/4” Swagelok tube adapter for flexible tube 15x20 mm
Sample inlet: Swagelok connection for stainless steel tube 1/4”.
15x20 mm (1/2”) hose nozzle which must end in a pressure free waste of sufficient capacity.
Accuracy
Reproducibility
Measuring
Range
Temperature
± 1.5% of measured value or ± 0.2 ppb
±1% of measured value or ± 0.15 ppb up to 60°C
Resolution: 0.1°C
Sample Flow
Measurement
With Swan sample flow meter and alarm in case of insufficient sample flow.
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13
AMI Oxytrace QED
Product Description
Dimensions
(Oxytrace and
Oxytrace QED)
Panel:
Mounting hole distance
Screws:
Weight:
Stainless steel
280x850x150 mm
254x824
8 mm diameter
12.0 kg
280 mm/ 11”
254 mm/ 10”
AMI Oxytrace
/ 16
14
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AMI Oxytrace QED
Product Description
2.3.
Instrument Overview
AMI Oxytrace
A
B
I
C
D
E
F
G
H
A
B
C
D
E
Panel
AMI Transmitter
Oxygen sensor
Flow sensor
Flow cell
F
G
I
H
Flow regulating valve
Sample outlet
Drain funnel
Sample inlet
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AMI Oxytrace QED
Product Description
AMI Oxytrace QED
C
D
I
E
F
G
H
J
K
A
B
D
E
F
A
B
C
Panel
AMI Transmitter
Faraday control unit
Oxygen sensor
Sample outlet
Flow sensor
G
I
H
J
K
Flow cell
Flow regulating valve
Faraday electrode
Drain funnel
Sample inlet
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AMI Oxytrace QED
Product Description
2.4.
Single Components
2.4.1
AMI Oxytrace Transmitter
Electronic transmitter and controller for oxygen measurement.
18.5
140
103
4.5
Dimensions
Width:
Height:
Depth:
Weight:
Specifications
Electronics case:
Protection degree:
Display:
Electrical connectors:
140 mm
180 mm
70 mm
1.5 kg
Cast aluminum
IP 66 / NEMA 4X backlit LCD, 75 x 45 mm screw clamps
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17
AMI Oxytrace QED
Product Description
2.4.2
Sensor OXYTRACE G
Sensor for the measurement of dissolved oxygen in ultra pure water. Precise oxygen measuring cell with integrated temperature sensor and guard electrode for faster initial response time after maintenance.
59
100
Technical data :
Clark oxygen electrode
Cathode gold, anode silver, guard silver
Zero current-free electrode system
Robust 25 µm fluoropolymer diaphragm
Measuring range :
0–20 ppm O
Range
2
(25 °C)
Automatic range switching
0.1–9.99 ppb
10–199.9 ppb
200–1999 ppb
2–20 ppm
0 – 200% saturation
Resolution
0.01 ppb
0.1 ppb
1.0 ppb
0.01 ppm
Temp. sensor :
NT5K
Accuracy :
0,3 % if calibration temperature = measuring temp.
1,5 % at ± 10 °C deviation to cal. temperature
Precision
Response time
Minimal flow
Operating temp.
:
:
:
:
± 1 % of reading or ±0.15 ppb t
90
< 30 seconds (rising concentration)
50 cm/s Pressure resistance: 3 bar max. 50 °C
Material
:
Protection
Weight
:
:
shaft: polyacetal copolymer cathode/anode/guard: gold/silver/silver membrane: fluoropolymer
IP 68
150 g
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AMI Oxytrace QED
Product Description
2.4.3
QV-Flow PMMA OTG
Flow cell
Flow cell made of acrylic glass with integrated flow sensor.
Sample temp.
max. 45 °C
Inlet pressure
max. 1 bar
Outlet pressure
Pressure free
Sample flow
6–25 l/h
Process connection inlet
Swagelok connection for 1/4” tube
Outlet
SERTO angle for 6 mm flexible tube
Dimensions
see picture below
80
21
38
5.3
8
62
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19
AMI Oxytrace QED
Product Description
2.4.4
B-Flow SS316L OTG
Flow cell
B-Flow SS316L OTG is made of stainless steel without flow sensor and can be used for higher operating pressures and temperatures.
Operating temp.
-10 to + 130 °C
Sensor
max. 50 °C
Operating pressure
max. 5 bar at 130 °C
Sensor
max. 3 bar
Flow cell connection
2x female thread 1/8" ISO
Dimensions
see picture below
52
40
20
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AMI Oxytrace QED
Installation
3.
Installation
Restrictions on use
The first part of this chapter describes the preparing and placing of the system in position for use. The second part describes the wiring and the properties of the signal outputs and relay.
If exposed to weather, install a cover to protect the instrument from insolation and precipitation. See
Technical Data, p. 13 for tempera-
ture limitations.
Check
3.1.
Installation Check List
On site requirements
Installation
Electrical
Connections
Swansensor
Oxytrace G
Instrument’s specification must conform to the National Electrical
Code, all state and local codes, and all plant codes and standards for electrical equipment.
100–240 VAC (
10%), 50/60 Hz ( 5%) or 24 VDC (±10%), isolated power outlet with ground connection and 30 VA
Sample line with 8–25 l/h and 0.2–3 bar.
Waste line with pressure free drain.
Mount the instrument in vertical position. Display should be at eye level.
Connect the sample and waste line, see
Connecting Sample Inlet and Outlet, p. 23 .
Connect all external devices like limit switches, current loops and pumps, see
.
Connect the power cord, do not switch on power until all external devices are connected.
The Swansensor Oxytrace G is delivered with prefilled electrolyte chamber. A transport protection cap filled with water keeps the sensor wet during transport and storage. Before installation, remove the transport protection cap and clean the sensor surfaces with water. Afterwards install the oxygen sensor and connect the cable.
See Install the Swansensor Oxytrace G, p. 24
.
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21
AMI Oxytrace QED
Installation
Turn-on power
Run-in Period
Calibration
Open
Sample Flow
Programming
Switch on power.
First, the analyzer performs a self test, displays the firmware version and then starts normal operation
Leave the sensor at the air. The sensor has to run-in for at least
30 min, better 1 h. During this time it has to be at air with a dry and clean membrane and has to be connected to the powered instru-
menty. Calibrate the sensor after this time, see Calibration, p. 47
. and mount it into the flow cell afterwards.
Open the flow regulating valve to allow sample flow into the flow cell and into the waste. Sample must always overflow into waste
Program all parameters for external devices (interface, etc.). Set all parameters for instrument operation (limits, alarms).
3.2.
Mounting of Instrument Panel
Mounting requirements
The first part of this chapter describes the preparing and placing of the system for use.
The instrument must only be installed by trained personnel.
Mount the instrument in vertical position.
For ease of operation mount it so that the display is at eye level.
For the installation a kit containing the following installation material is available:
– 4 Screws 8x60 mm
– 4 Dowels
– 4 Washers 8.4/24 mm
The instrument is only intended for indoor installation.
For dimensions see Dimensions (Oxytrace and Oxytrace QED), p.
22
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AMI Oxytrace QED
Installation
3.3.
Connecting Sample Inlet and Outlet
3.3.1
Swagelok Fitting Stainless Steel at Sample Inlet
Preparation
Cut the tube to length and deburr it. The tube must be straight and free from blemishes for approximately 1,5 x tube diameter from the end.
Lubrication with lubricating oil, MoS2, Teflon etc. is recommended for the assembly and reassembly of bigger sized unions (thread, compression cone).
Installation
1 Insert the compression ferrule [C] and the compression cone [D] into the union nut [B].
2 Screw on the union nut onto the body, do not tighten it.
3 Push the stainless steel pipe through the union nut as far as it reaches the stop of the body.
4 Mark the union nut at 6 o’clock position.
5 While holding the fitting body steady, tighten the nut union 1¼ rotation using an open ended spanner.
A B C D E
12
9
3
6
A
B
C
Stainless steel tube
Union nut
Compression ferrule
F
D
E
F
Compression cone
Body
Tightened connection
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AMI Oxytrace QED
Installation
3.3.2
FEP Tube at Sample Outlet
1/2” Tube at waste funnel.
A
A
B
C
Waste funnel
Hose nozzle
1/2” tube
B
C
Connect the 1/2” tube [C] to the hose nozzle [B] and place it into a drain with atmospheric pressure.
3.4
Install the Swansensor Oxytrace G
The Swansensor Oxytrace G is delivered with prefilled electrolyte chamber [E]. A transport protection cap [B] filled with water [D] keeps the sensor wet during transport and storage. To install the sensor proceed as follows:
A
B
C
A
B
C
D
E
Fixing sleeve
Transport protection cap
Swansensor Oxytrace G
Water
Sensor cap filled with electrolyte
D
E
24
1 Unscrew the fixing sleeve [A].
2 Remove the transport protection cap [B].
3 Clean the Swansensor Oxytrace G [C] with water.
4 Install the Swansensor Oxytrace G into the flow cell
5 Connect the sensor cable to the transmitter, see
Electrical Connection Diagram AMI Oxytrace, p. 27
.
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Installation
3.5.
Electrical Connections
Cable thicknesses
WARNING
Risk of electrical shock.
Do not perform any work on electrical components if the transmitter is switched on. Failure to follow safety instructions could result in serious injury or death.
Always turn off AC power before manipulating electric parts.
Grounding requirements: Only operate the instrument from an power outlet which has a ground connection.
Make sure the power specification of the instrument corresponds to the power on site.
In order to comply with IP66, use the following cable thicknesses
Wire
A B C
A
B
C
PG 11 cable gland: cable Ø outer
PG 7 cable gland: cable Ø
PG 9 cable gland: cable Ø
5–10 mm outer
3–6.5 mm outer
4–8 mm
NOTICE: Protect unused cable glands
For Relays: Use max. 1.5 mm
2 end sleeves.
/ AWG 14 stranded wire with
For Signal Outputs and Input: Use 0.25 mm
2 stranded wire with end sleeves.
/ AWG 23
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AMI Oxytrace QED
Installation
WARNING
External Voltage.
External supplied devices connected to relay 1 or 2 or to the alarm relay can cause electrical shocks
Make sure that the devices connected to the following contacts are disconnected from the power before resuming installation.
– relay 1
– relay 2
– alarm relay
WARNING
To prevent from electrical shock, do not connect the instrument to the power unless the ground wire (PE) is connected.
Do not connect unless specifically instructed to do so.
WARNING
The mains of the AMI Transmitter must be secured by a main switch and appropriate fuse or circuit breaker.
26
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Installation
3.5.1
Electrical Connection Diagram AMI Oxytrace
A-96.250.531 / 300617
CAUTION
Use only the terminals shown in this diagram, and only for the mentioned purpose. Use of any other terminals will cause short circuits with possible corresponding consequences to material and personnel.
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AMI Oxytrace QED
Installation
3.5.2
Electrical Connection Diagram AMI Oxytrace QED
28
CAUTION
Use only the terminals shown in this diagram, and only for the mentioned purpose. Use of any other terminals will cause short circuits with possible corresponding consequences to material and personnel.
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Installation
3.5.3
Power Supply
WARNING
Risk of electrical shock
Do not perform any work on electrical components if the transmitter is switched on. Failure to follow safety instructions could result in serious injury or death.
Always turn off AC power before manipulating electric parts.
Installation and maintenance of electrical parts must be performed by professionals.
A
B
C
D
Installation requirements
A
B
C
D
Power supply connector
Neutral conductor, Terminal 2
Phase conductor, Terminal 1
Protective earth PE
NOTICE: The protective earth wire (Ground) has to be connected to the grounding terminal.
The installation must meet the following requirements.
Mains fuse 1.6 AT
Mains cable to comply with standards IEC 60227 or IEC
60245; flammable rating FV1
Mains equipped with an external switch or circuit-breaker
– near the instrument
– easily accessible to the operator
– marked as interrupter for AMI Oxytrace QED
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AMI Oxytrace QED
Installation
3.6.
Input
NOTICE: Use only potential-free (dry) contacts.
The total resistance (sum of cable resistance and resistance of the relay contact) must be less than 50 Ω.
Terminals 16 and 42
If the signal output is set to hold, the measurement is interrupted if input is active.
For programming see Menu Installation
.
3.7.
Relay Contacts
3.7.1
Alarm Relay
NOTICE: Max. load 1 A/250 VAC
Alarm output for system errors.
Error codes see
NOTICE: With certain alarms and certain settings of the AMI transmitter the alarm relay does not switch. The error, however, is shown on the display.
NC
1)
Normally
Closed
NO
Normally
Open
Terminals
10/11
12/11
Description
Active (opened) during normal operation.
Inactive (closed) on error and loss of power.
Active (closed) during normal operation.
Inactive (opened) on error and loss of power.
0V
Relay connection
1)
11
0V
10
12
11
10
12
1) usual use
30
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Installation
3.7.2
Relay 1 and 2
NOTICE: Max. load 1 A/250 VAC
Relay 1 and 2 can be configured as normally open or as normally closed. Standard for both relays is normally open. To configure a
Relay as normally closed, set the jumper in the upper position.
NOTICE: Some error codes and the instrument status may influence the status of the relays described below.
Relay config.
Terminals
Normally
Open
6/7: Relay 1
8/9: Relay 2
Jumper pos.
Normally
Closed
6/7: Relay 1
8/9: Relay 2
Description
Inactive (opened) during normal operation and loss of power.
Active (closed) when a programmed function is executed.
Relay configuration
0V
Inactive (closed) during normal operation and loss of power.
Active (opened) when a programmed function is executed.
0V
6
7
6
7
A
B
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A
B
Jumper set as normally open (standard setting)
Jumper set as normally closed
For programming see Menu Installation 5.3.2 and 5.3.3, p. 81 .
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AMI Oxytrace QED
Installation
CAUTION
Risk of damage of the relays in the AMI Transmitter due to heavy inductive load.
Heavy inductive or directly controlled loads (solenoid valves, dosing pumps) may destroy the relay contacts.
To switch inductive loads > 0.1 A use an AMI relay box available as an option or suitable external power relays.
Inductive load
Small inductive loads (max 0.1A) as for example the coil of a power relay can be switched directly. To avoid noise voltage in the
AMI Transmitter it is mandatory to connect a snubber circuit in parallel to the load.
A snubber circuit is not necessary if an AMI relaybox is used.
B
D
A
C
E
A
B
C
D
E
AC or DC power supply
AMI Transmitter
External power relay
Snubber
Power relay coil
Resistive load
Resistive loads (max. 1A) and control signals for PLC, impulse pumps and so on can be connected without further measures
A B
C
A
B
C
AMI Transmitter
PLC or controlled pulse pump
Logic
Actuators
Actuators, like motor valves, are using both relays: One relay contact is used for opening, the other for closing the valve, i.e. with the
2 relay contacts available, only one motor valve can be controlled.
Motors with loads bigger than 0.1A must be controlled via external power relays or an AMI relay box.
B
A
C
A
B
C
AC or DC power supply
AMI Transmitter
Actuator
M
32
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Installation
3.8.
Signal Outputs
3.8.1
Signal output 1 and 2 (current outputs)
NOTICE: Max. burden 510 Ω.
If signals are sent to two different receivers, use signal isolator
(loop isolator).
Signal output 1:
Signal output 2:
Terminals 14 (+) and 13 (-)
Terminals 15 (+) and 13 (-)
Programming see menu
3.9.
Interface Options
A
A
B
C
D
B
AMI Transmitter
Slot for interfaces
Frontend PCB
Screw terminals
C
D
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The slot for interfaces can be used to expand the functionality of the AMI instrument with either:
an additional signal output
a Profbus or Modbus connection
a HART connection
an USB Interface
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AMI Oxytrace QED
Installation
3.9.1
Signal Output 3
Terminal 38 (+) and 37 (-).
Requires the additional board for the third signal output 0/4–20 mA
PCB. The third signal output can be operated as a current source or as a current sink (switchable via switch [A]). For detailed information see the corresponding installation instruction.
NOTICE: Max. burden 510
.
A
Third signal output 0/4 - 20 mA PCB
A Operating mode selector switch
3.9.2
Profibus, Modbus Interface
Terminal 37 PB, Terminal 38 PA
To connect several instruments by means of a network or to configure a PROFIBUS DP connection, consult the PROFIBUS manual.
Use appropriate network cable.
NOTICE: The switch must be ON, if only one instrument is installed, or on the last instrument in the bus.
34
A
Profibus, Modbus Interface PCB (RS 485)
A On - OFF switch
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Installation
3.9.3
HART Interface
Terminals 38 (+) and 37 (-).
The HART interface PCB allows for communication via the HART protocol. For detailed information, consult the HART manual.
HART Interface PCB
3.9.4
USB Interface
The USB Interface is used to store Logger data and for Firmware up load. For detailed information see the corresponding installation instruction.
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USB Interface
A
B
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AMI Oxytrace QED
Instrument Setup
4.
Instrument Setup
4.1.
Establish Sample Flow
A
1 Open the flow regulating valve [A] and wait until the flow cell is completely filled.
2 Switch on power.
3 Adjust the sample flow to 8–25 l/h.
4.2.
Programming
Program all parameters for external devices (interface, recorders, etc.)
Program all parameters for instrument operation (limits, alarms),
see Program List and Explanations, S. 69
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Operation
5.
Operation
5.1.
Keys
A B C D
Exit Enter
A
to exit a menu or command (rejecting any changes) to move back to the previous menu level
B
to move DOWN in a menu list and to decrease digits
C
to move UP in a menu list and to increase digits
D
to open a selected sub-menu to accept an entry
Program
Access, Exit
RUN
R1
R2
9 l/h
14:10:45
1.05 ppb
25.4°C
Enter
Exit
Main Menu
Messages
Diagnostics
Maintenance
Operation
Installation
1
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AMI Oxytrace QED
Operation
5.2.
Display
A B C D
RUN
R1
R2
12 l/h
15:20:18
0.15
ppm
23 °C
E
H
G
F
A RUN
HOLD
OFF
B ERROR normal operation input closed or cal delay: Instrument on hold (shows status of signal outputs).
input closed: control/limit is interrupted (shows status of signal outputs).
Error Fatal Error
C Keys locked, transmitter control via Profibus
D Time
E Process values
F
Sample Temperature
G Sample flow in i/h
H Relay status
Relay status, symbols upper/lower limit not yet reached upper/lower limit reached control upw./downw. no action control upw./downw. active, dark bar indicates control intensity motor valve closed motor valve: open, dark bar indicates approx. position timer timer: timing active (hand rotating)
38
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Operation
5.3.
Software Structure
Main Menu
Messages
Diagnostics
Maintenance
Operation
Installation
Messages
Pending Errors
Maintenance List
Message List
1
1.1
Menu Messages 1
Reveals pending errors as well as an event history
(time and state of events that have occurred at an earlier point of time).
It contains user relevant data.
Menu Diagnostics 2
Provides user relevant instrument and sample data.
Diagnostics
Identification
Sensors
Sample
I/O State
Interface
2.1
Maintenance
Calibration
Service
Simulation
3.1
Set Time 23.09.06 16:30:00
Operation
Sensors
Relay Contacts
Logger
4.1
Installation
Sensors
Signal Outputs
Relay Contacts
Miscellaneous
Interface
5.1
Menu Maintenance 3
For instrument calibration, relay and signal output simulation, and to set the instrument time.
It is used by the service personnel.
Menu Operation 4
User relevant parameters that might need to be modified during daily routine. Normally password protected and used by the process-operator.
Subset of menu 5 - Installation, but process-related.
Menu Installation 5
For initial instrument set up by SWAN authorized person, to set all instrument parameters. Can be protected by means of password.
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AMI Oxytrace QED
Operation
5.4.
Changing Parameters and values
Changing parameters
The following example shows how to change the logger interval:
Log interval
Clear logger
30 min no
1 Select the parameter you want to change.
2 Press [Enter]
Temperature
Standards
NT5K
Logger
Log interval
Interval.
5 min
10 min
30 min
1 Hour
4.1.3
30min no
3 Press [ ] or [ ] key to highlight the required parameter.
4 Press [Enter] to confirm the selection or [Exit] to keep the previous parameter).
Logger
Log interval
Clear logger
4.1.3
10 min no
The selected parameter is highlighted (but not saved yet).
5 Press [Exit].
40
Changing values
Logger
Log interval
Clear logger
Yes
No
4.1.3
no
Yes is highlighted.
6 Press [Enter] to save the new parameter.
The system reboots, the new parameter is set.
Alarm oxygen
Alarm High
Alarm Low
Hysteresis
Delay
5.3.1.1.1
10.00 ppm
1.00 ppb
0.10 ppb
5 Sec
Alarm oxygen
Alarm High
Alarm Low
Hysteresis
Delay
5.3.1.1.1
8.00 ppb
1.00 ppb
0.10 pp
5 Sec
1 Select the value you want to change.
2 Press [Enter].
3 Set required value with [
[ ] key.
] or
4 Press [Enter] to confirm the new value.
5 Press [Exit].
Yes is highlighted.
6 Press [Enter] to save the new value.
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Maintenance
6.
Maintenance
Maintenance frequency depends strongly on the water quality. The
AMI Oxytrace QED is designed for determination of low level of dissolved oxygen in high purity water.
It is not suitable for the measurement of dissolved oxygen in waste water.
6.1.
Maintenance Table
Weekly
Monthly
Half-yearly
Yearly
Check sample flow.
If necessary, perform an air calibration.
Clean Oxytrace G membrane with a soft tissue, see
Maintenance of the Oxygen Sensor, p. 42 .
Clean faraday electrode, see Maintenance of the
If necessary, replace filling electrolyte.
If the sensor is exposed to air frequently and during long time intervals, the electrolyte and membrane may have to be changed earlier (see below*).
Clean flow cell and flow meter, if dirty.
Replace Swansensor Oxytrace G membrane by using a new, pre filled sensor cap.
Every 2nd year
*A change of membrane and electrolyte is recommended:
if indicated in the maintenance list (remaining amount <10%)
if the response of the sensor is slow
if the sensor can not be calibrated any more and/or the instrument shows a corresponding error message
if the sensor signal is very unstable.
6.2.
Stop of Operation for Maintenance
1 Shut off power of the instrument.
2 Stop sample flow by closing the flow regulating valve.
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AMI Oxytrace QED
Maintenance
6.3.
Maintenance of the Oxygen Sensor
WARNING
Etching liquid
The electrolyte is alkaline and caustic. It contains less than 1% of potassium hydroxide.
Do not ingest. Wear protective goggles and gloves during handling. Avoid contact with clothes.
In case of accidental contact with the eyes, wash immediately with clear water and contact a physician. Show him the label of the bottle or this section of the manual.
Short contact with skin is harmless, nevertheless wash with lots of water.
6.3.1
Electrolyte exchange
An electrolyte exchange is indicated in the maintenance list as soon as the remaining amount is below 10%.
A
B
C
A
B
C
Fixing sleeve
Sensor
Flow cell
1 Unscrew the fixing sleeve [A].
2 Remove the sensor from the flow cell.
NOTICE: Do not pull out the sensor with force!
To remove the sensor from the flow cell, open the flow regulating valve during removing the sensor. This prevents the formation of a vacuum, and the sensor can easily be removed from the flow cell.
42
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Maintenance
A
G
H
E
F
B
C
D
E
F
G
H
A
B
C
D
Swansensor Oxytrace G
Thread
Groove
Guard electrode
Anode
Measuring head
Cathode
Sensor cap with membrane
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3 Unscrew and remove the sensor cap [H] from the Swansensor
Oxytrace G [A].
4 Empty the remaining electrolyte.
5 Refill the sensor cap with fresh electrolyte.
NOTICE: There is a groove [C] in the thread [B] of the sensor, where excessive air and electrolyte can escape while screwing the sensor cap onto the sensor. Hold the sensor in vertical position, measuring head pointing downwards.
6 Slowly screw the sensor cap onto the sensor to allow the excess electrolyte to escape without building up too much pressure inside the electrode. Fasten sensor cap tightly.
7 Clean the sensor thoroughly and dry the sensing membrane with a soft tissue.
8 Switch on power.
9 Let the sensor run-in at air for at least 30 min, better 1 h.
10 Afterwards perform an air calibration.
11 Install the sensor into the flow cell.
12 Select “New Filling” to reset the counter for remaining electro-
lyte, see <Maintenance>/<Service> 3.2.1, p. 71 ).
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AMI Oxytrace QED
Maintenance
6.3.2
Clean Swansensor Oxytrace G and Flow Cell
Depending on the water quality, the Swansensor Oxytrace G and the flow cell will necessitate a cleaning.
Before cleaning, stop operation as described in Stop of Operation for Maintenance, p. 41 .
1 Dismount the Swansensor Oxytrace G, see Electrolyte exchange, p. 42 .
2 Clean the sensor with a soft tissue and rinse it with water afterwards.
3 Use a soft brush to remove the dirt which sticks on the walls of the flow cell.
4 Flush the flow cell with clean water.
5 Install the Swansensor Oxytrace G and start sample flow.
44
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Maintenance
6.4.
Maintenance of the Faraday electrode
A
D
E
F
G
A
B
C
Fixing sleeve
Electrode body
Washer
O-ring
Inner electrode
O-ring
Hollow electrode
B
C
D
E
F
G
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1 Switch off the instrument and close the flow regulating valve.
2 Open the faraday control unit.
3 Disconnect and remove the cable from the faraday control unit.
4 Unscrew and remove the fixing sleeve (A).
5 Remove the faraday electrode from the flow cell, do not pull on the cable.
6 Remove the washer (C) and the o-ring [D] from the electrode body (B).
7 Unscrew the electrode tip containing the hollow electrode (G).
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AMI Oxytrace QED
Maintenance
8 Clean the inner electrode (E) with a tissue and the hollow electrode with a pipe cleaner.
The electrode surfaces should be shining metallic after cleaning. Use a polishing detergent or a small amount of toothpaste.
9 Rinse all parts well with water.
10 Replace the O-ring and the washer if necessary.
11 Screw the hollow electrode finger-tight onto the electrode body.
12 Insert the faraday electrode into flow cell.
13 Tighten fixing sleeve firmly.
14 Feed the electrode cable through the cable gland of the faraday control unit.
15 Connect the electrode cable to terminal 5 (green) and terminal 6
(white).
16 Switch the instrument on.
17 Open the flow regulating valve and adjust the sample flow between 8 and 25 l/h.
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Maintenance
6.5.
Calibration
The sensing part of the sensor must not be in direct contact with water!
In the wet flow cell, the atmosphere will be saturated with water vapor. This atmosphere will produce the most accurate calibration results.
The required time for a calibration depends mainly on the difference between temperature and oxygen content in the sample and in the air. It can take 15 – 20 minutes. This is also the case, if the electrolyte was exchanged.
As soon as the reading is stable, the microprocessor will store the calibration data in the memory.The end of the calibration is indicated on the display.
To perform a calibration proceed as follows:
1 Navigate to menu <Maintenance> /<Calibration>.
2 Press [Enter] to start the calibration and follow the dialog on the display.
Calibration
3.1.5
3 Stop the sample flow at with the flow regulating valve.
Close regulating valve to turn off sample flow.
<Enter> to continue
Calibration
Take sensor out of flow cell and dry membrane and sensor
3.1.5
4 Unscrew and remove the thread-
ed sleeve [A], see Electrolyte exchange, p. 42
.
5 Remove the oxygen sensor [B] from the flow cell [C].
6 Dry the sensor membrane and the flow cell with a soft paper tissue.
<Enter> to continue
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Maintenance
Calibration
Place the electrode into the wet flow cell at a slightly tilted angle.
3.1.5
<Enter> to continue
7 Place the electrode slightly tilted into the flow cell, so that the sensor cap rests on the rim for the O-ring.
A
B
48
Calibration
Saturation
Sat. Current
Progress
Calibration
Saturation
Sat. Current
3.1.1
98.7 %
32
A
3.1.1
98.7 %
32
A
A Tilted sensor
B Flow cell
8 Press [Enter] to start the calibration measurement.
The saturation should reach
100%, the saturation current should be about 22
A to 33
period, the calibration will be discarded.
9 Press [Enter] to confirm the calibration.
A.
If the measuring values are not stable during the measuring
Calibration Successful
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Maintenance
6.6.
Zero-Verification
Swansensor Oxytrace G for the measurement of low oxygen content (< 1 ppb).
1 Calibrate the sensor according to chapter
2 Prepare a 5%-sodium sulfite solution with demineralized water.
3 Put the electrode into the sodium sulfite solution afterwards. Assure that there are no air bubbles in front of the sensor.
4 The measured value should now be < 1 ppb.
NOTICE: Depending on the state of the electrode this process can take several hours. In case of an electrode-refill, this can take days until the measured value is lower than 1 ppb.
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Maintenance
6.7.
Faraday Verification
Automatic
Verification
Manual
Verification
The Faraday verification works only for oxygen concentrations below 200 ppb. If automatic Faraday verification is enabled, a periodic check of the system is performed. A manual verification can be started for test purposes.
Per default the instrument performs an automatic faraday verification every 3 hours. To change the settings for automatic verification go to menu Faraday Parameter- Timer mode, see menu
Possible settings are:
off
interval
daily
weekly
To start a manual verification:
1 Navigate to menu 3.2.2 <Maintenance>/<Service>/<Faraday
Verification>.
Faraday Verification
Current Value
3.3
1.62 ppb
Faraday Conc.
Progress
12.85 ppb
2 Press [Enter] to start the Faraday
Verification.
The verification then starts immediately.
<Enter> to stop
3 Press [Enter] to confirm the Faraday Verification.
Faraday Verification
Efficiency
Faraday Conc.
Progress
3.3
91.5 %
12.85 ppb
Done
Results are saved in the Verification history menu 2.2.1.5
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Maintenance
6.8.
Quality Assurance of the Instrument
Quality assurance level
Every SWAN on-line instrument is equipped with integrated, autonomous quality assurance functions to survey the plausibility of each measurement.
For the AMI Oxytrace/AMI Oxytrace QED these are:
continuous monitoring of sample flow
continuous monitoring of the temperature inside the transmitter case
periodic accuracy test with ultra high precision resistors
Further a manual, menu driven inspection procedure can be carried out using a certified reference instrument. Running at the same sampling point as an inspection equipment, the AMI Inspector Oxygen verifies the measuring results. After enabling the quality assurance procedure by defining the quality assurance level, the instrument reminds the user periodically to run the procedure and results are stored in a history for review.
Central feature of the quality assurance function is the assignment of the monitored process to a Quality assurance level.
There are three predefined levels plus a user level. Hereby the inspection interval, the deviation limits of temperature and measuring result between the inspection equipment and the monitoring instrument are defined.
Level 1: Trend; Measurement used as an additional information to follow the process indicating trends.
Level 2: Standard; Monitoring of several parameters of a process (e.g. oxygen, saturation). In case of instrument failure, other parameters can be used for process monitoring.
Level 3: Crucial; Monitoring of critical processes, value is used for control of another part or subsystem (valve, dosing unit, etc.).
Additional level:
Quality level 4: User; User defined inspection interval, maximal deviation of temperature and measuring result.
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Maintenance
Quality Level
0: Off
1: Trend
2: Standard
3: Crucial
4: User max. deviation temperature [°C] a)
Off
0.5 °C
0.4 °C
0.3 °C
0 - 2°C
a) sample temperature must have 25°C +/- 5°C.
max. deviation result [%]
Off
10 %
5 %
5 %
0 - 20% min. inspection interval
Off annual quarterly monthly annual, quarterly, monthly
Procedure
The standard workflow contains following procedures:
1 Activate SWAN Quality assurance procedure
2 Pre-test
3 Connect instruments
4 Carry out comparison measurement
5 Completion of the measurement
NOTICE: The procedure should only be carried out through qualified personnel.
Materials / Inspection equipment:
Reference instrument: AMI INSPECTOR Oxygen
Two tubes made of PA
6.8.1
Activate SWAN Quality assurance procedure
Enable quality assurance procedure at each instrument by selecting the quality level in menu 5.1.4.
The corresponding submenus are then activated.
NOTICE: The activation is necessary the first time only.
52
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Maintenance
6.8.2
Pre-test
Reference instrument: AMI INSPECTOR Oxygen
– Check certificate; reference instrument certificate not older than one year.
– Check battery; Battery of the AMI INSPECTOR Oxygen should be completely charged. Remaining operating time on display minimum 20 hours.
– Sensor is in working condition.
On-line instrument: Monitor AMI Oxytrace QED
– Good order and condition; Flow cell free of particles,
Sensor surface free of deposits.
– Check message list; Review the message list in menu 1.3 and check for frequently alarms (as for example flow alarms). If alarms occur frequently remove cause before starting the procedure.
6.8.3
Connect the sample lines
The choice of sampling depends strongly on local conditions on site. Possible sampling:
via sample point,
via T-fitting or
via piggyback/downstream
NOTICE:
• avoid ingress of air, use screwed fitting,
• sample as near as possible to the process monitor,
• wait approx. 10 minutes, whilst measurement is running, until measurement value and temperature are stabilized.
Example As an example following picture shows the connection of the reference instrument via T-fitting to the process monitor.
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Maintenance
54
A
B
C
D
E
F
G
A
B
C
D
Monitor AMI Oxytrace
AMI INSPECTOR Oxygen
Reference flow cell
On-line flow cell
E
F
G
Sample outlet
Sample inlet
T-fitting
1 Stop sample flow to the monitor AMI Oxytrace by closing the appropriate valve, e.g. back pressure regulator, sample preparation or flow regulating valve at flow cell.
2 Connect sample line of the monitor AMI Oxytrace [A] with the sample inlet of the reference instrument AMI INSPECTOR Oxygen [B]. Use the supplied tube, made of PA.
3 Connect sample outlet of the reference instrument AMI IN-
SPECTOR Oxygen to the sample outlet funnel of the monitor.
4 Switch on the AMI INSPECTOR Oxygen. Open the flow regulating valve and regulate the sample flow to 10 l/h. The actual flow is shown on the transmitter.
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Maintenance
6.8.4
Carry out comparison measurement
The comparison measurement is menu driven. Start by selecting
Quality Assurance in menu 3.5 of the monitor AMI Oxytrace.
1 Navigate to menu Maintenance /Quality Assurance.
2 Press [Enter].
3 Follow the dialog on the Display.
Quality Assurance
- Carry out preparations
- Install Inspector
- Sample flow to 10 l/h
3.5.5
4 Carry out pre test preparations
Connect instruments.
Regulate sample flow to 10 l/h using the appropriate valve.
<Enter> to continue
Quality Assurance
Value O2
Value Temp.
Wait 10 Minutes
3.5.5
0.05 ppb
25.00
C
<Enter> to continue
5 Wait 10 minutes whilst measurement is running.
Press [Enter] to continue.
Quality Assurance
Value O2
Value Temp.
Inspector O2
Inspector Temp.
<Enter> to continue
3.5.3
0.05 ppb
25.00
C
0.06 ppb
25.0
C
6 Read the ppb value of the reference instrument and enter under
[
“Inspector” by using the [
] keys.
] or
7 Press [Enter] to confirm.
Quality Assurance
Value H2
Value Temp.
Inspector
Inspector Temp.
<Enter> to continue
3.5.4
0.05 ppb
25.00
C
0.06 ppb
25.0
C
Quality Assurance
Max. Dev. O2
Max. Dev. Temp.
Dev. O2
Dev. Temp.
QA-Check succesful
3.5.5
0.5 %
0.4 °C
0.1 %
0.4 °C
8 Read temperature value of the reference instrument and enter un-
[ der “Inspector Temp.” by using the
] or [ ] keys.
9 Press [Enter] to confirm.
10 Press [Enter] to continue.
The results are saved in QA-
History regardless if successful or not
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Maintenance
6.8.5
Completion of the measurement
1 Stop the sample flow to the AMI Oxytrace QED by closing the appropriate valve, e.g. back pressure regulator, sample preparation or flow regulating valve at flow cell again.
2 Close flow regulating valve of the AMI Inspector.
3 Disconnect the AMI Inspector by removing the tubes and connect the sample outlet of the Monitor AMI Oxytrace QED to the sample outlet funnel again.
4 Start sample flow again and regulate sample flow.
5 Shutdown the AMI INSPECTOR Oxygen.
If the AMI Inspector is put out of operation for a longer period of
time, see Longer Stop of Operation, p. 58
.
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Maintenance
6.9.
Replacing Fuses
WARNING
External Voltage.
External supplied devices connected to relay 1 or 2 or to the alarm relay can cause electrical shocks.
Make sure that the devices connected to the following contacts are disconnected from the power before continuing the installation.
– relay 1
– relay 2
– alarm relay
When a fuse has blown, find out the cause and fix it before replacing it with a new one.
Use tweezers or needle-nosed pliers to remove the defective fuse.
Use original fuses provided by SWAN only.
A B C D E F G
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E
F
G
A
B
C
D
1.6 AT/250V Instrument power supply
1.0 AT/250V Relay 1
1.0 AT/250V Relay 2
1.0 AT/250V Alarm relay
1.0 AF/125V Signal output 2
1.0 AF/125V Signal output 1
1.0 AF/125V Signal output 3
57
AMI Oxytrace QED
Maintenance
6.10. Longer Stop of Operation
1 Shut off power of the instrument.
2 Stop sample flow.
3 Remove the Swansensor Oxytrace G.
4 Clean the sensor with a soft tissue and rinse it with water afterwards.
5 Use a soft brush to remove the dirt which sticks on the walls of the flow cell.
6 Fill the flow cell with water.
7 Install the Swansensor Oxytrace G.
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Error List
7.
Error List
Error
Non-fatal Error. Indicates an alarm if a programmed value is exceeded.
Such Errors are marked E0xx (bold and black).
Fatal Error (blinking symbol)
Control of dosing devices is interrupted.
The indicated measured values are possibly incorrect.
Fatal Errors are divided in the following two categories:
Errors which disappear if correct measuring conditions are recovered (i.e. Sample Flow low).
Such Errors are marked E0xx (bold and orange)
Errors which indicate a hardware failure of the instrument.
Such Errors are marked
E0xx
( bold and red )
HOLD
R1
R2
8 l/h
14:10:45
7.04 ppm
25.4°C
Error or fatal Error
Error not yet acknowledged.
Check Pending Errors 1.1.5 * and take corrective action.
Press [ENTER].
Main Menu
Messages
Diagnostics
Maintenance
Operation
Installation
1
Navigate to menu Messages.
Press [ENTER].
Messages
Pending Errors
Maintenance List
Message List
1.1
Navigate to menu Pending Errors.
Press [ENTER].
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Pending Errors
Error Code
Alarm low
<Enter> to Acknowledge
1.1.5
E002
Press [ENTER] to acknowledge the
Pending Errors. The Error is reset and saved in the Message List.
* Menu numbers see
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AMI Oxytrace QED
Error List
60
Error
E001
E002
Description
Oxygen Alarm high
Oxygen Alarm low
E003
Saturation Alarm high
E004
E007
E008
E009
E010
E011
E012
Saturation Alarm low
Sample Temp. high
Sample Temp. low
Sample Flow high
Sample Flow low
Temp. shorted
Temp. disconnected
Corrective action
– check process
– check programmed value, see
– check process
– check programmed value, see
– check process
– check programmed value, see
– check process
– check programmed value, see
– check process
– check programmed value, see
– check process
– check programmed value, see
– check sample flow
– check programmed value, see
– establish sample flow
– clean instrument
– check programmed value, see
– Check wiring of sensor
– Check sensor
– Check wiring of sensor
– Check sensor
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Error List
Error
E013
E014
E017
E018
Description
Case Temp. high
Case Temp. low
Control Timeout
Faraday Efficiency
E019
Quality Assurance
E024
Input active
E026
E028
E030
E031
IC LM75
Signal output open
EEProm Frontend
Calibration Recout
Corrective action
– check case/environment temperature
– check programmed value,
– check case/environment temperature
– check programmed value,
– check control device or programming in
Installation, Relay contact, Relay 1/2
– clean Faraday electrode, see
Maintenance of the Faraday electrode,
– perform an air calibration, see
– perform maintenance of the oxygen
sensor, see Maintenance of the Oxygen
– Perform QA Procedure using a reference instrument, e.g. AMI Inspector
– See If Fault Yes is programmed in Menu
– call service
– check wiring on signal outputs 1 and 2
– call service
– call service
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Error List
Error
E032
E033
E034
E065
Description
Wrong Frontend
Power-on
Power-down
Electrolyte depleted
Corrective action
– call service
– none, normal status
– none, normal status
– Refill electrolyte, see Electrolyte exchange, S. 42
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Program Overview
8.
Program Overview
For explanations about each parameter of the menus see
.
Menu 1 Messages informs about pending errors and maintenance tasks and shows the error history. Password protection possible. No settings can be modified.
Menu 2 Diagnostics is always accessible for everybody. No password protection. No settings can be modified.
Menu 3 Maintenance is for service: Calibration, simulation of outputs and set time/date. Please protect with password.
Menu 4 Operation is for the user, allowing to set limits, alarm values, etc. The presetting is done in the menu Installation
(only for the System engineer). Please protect with password.
Menu 5 Installation: Defining assignment of all inputs and outputs, measuring parameters, interface, passwords, etc.
Menu for the system engineer. Password strongly recommended.
8.1.
Messages (Main Menu 1)
Pending Errors
1.1.5*
Pending Errors
1.1*
Maintenance List
1.2*
Message List
1.3*
Maintenance List
Number
Date, Time
1.2.5*
1.3.1*
* Menu numbers
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Program Overview
Identification
2.1*
8.2.
Diagnostics (Main Menu 2)
Desig.
Version
Factory Test
2.1.3*
AMI Oxytrace
6.20-06/16
Instrument
Motherboard
2.1.3.1*
Front End
Years / Days / Hours / Minutes / Seconds
Sensors
2.2*
Operating Time
2.1.4*
Oxytrace G
2.2.1*
Current Value
(Raw value tc)
Saturation
Cal. History
2.2.1.5*
Number
Date, Time
Sat. Current
Air pressure
2.2.2.1*
Sample
2.3*
I/O State
2.4*
Interface
2.5*
Miscellaneous
2.2.2*
QA History
2.2.3*
Sample ID
Temperature °C
Nt5K Ohm
Alarm Relay
Relay 1/2
Input
Signal Output 1/2
Protocol
USB Stick
Case Temp.
Air pressure
QA History
2.3.1*
2.4.1*
2.4.2*
2.5.1*
2.2.3.1*
* Menu numbers
2.1.4.1*
2.2.1.5.1*
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Program Overview
Calibration
3.1*
Service
3.2*
Simulation
3.3*
8.3.
Maintenance (Main Menu 3)
Calibration
3.1.5
Electrolyte
3.2.1*
Last filling
Remaining amount
Remaining time
New Filling
Faraday Verification
Current Value
3.2.2
Faraday Conc.
Alarm Relay
Relay 1
Relay 2
Signal Output 1
Signal Output 2
(Date), (Time)
Progress
3.2.1*
3.2.2*
3.2.3*
3.2.4*
3.2.5*
3.2.1.5*
Set Time
3.4*
Quality Assurance
3.5*
Quality Assurance 3.5.5*
* Menu numbers
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Program Overview
Sensors
4.1*
Relay Contacts
4.2*
8.4.
Operation (Main Menu 4)
Filter Time Const.
Hold after Cal.
4.1.1*
4.1.2*
Faraday Parameter
Mode
4.1.3*
Interval
Alarm Relay
4.2.1*
Delay
Signal Outputs
Output/Control
Alarm oxygene
4.2.1.1*
Logger
4.3*
Relay 1/2
4.2.2* - 4.2.3*
Input
4.2.4*
Log Interval
Clear Logger
Eject USB Stick
Alarm Saturation
4.2.1.2*
Setpoint
Hysteresis
Delay
Active
Signal Outputs
Output / Control
Fault
Delay
4.3.1*
4.3.2*
4.3.3*
4.1.3.1*
4.1.3.20*
4.1.3.3*
4.1.3.4*
4.1.3.5*
Alarm High
Alarm Low
Hysteresis
Delay
Alarm High
Alarm Low
Hysteresis
Delay
4.2.x.100*
4.2.x.200*
4.2.x.30*
4.2.4.1*
4.2.4.2*
4.2.4.3*
4.2.4.4*
4.2.4.5*
* Menu numbers
4.2.1.1.1*
4.2.1.1.25*
4.2.1.1.35*
4.2.1.1.45*
4.2.1.2.1*
4.2.1.2.25*
4.2.1.2.35*
4.2.1.2.45*
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Program Overview
8.5.
Installation (Main Menu 5)
Sensors
5.1*
Miscellaneous
5.1.1*
Flow
Offset
Quality Assurance
Level
5.1.2*
Signal Outputs Signal Output 1/2
5.2* 5.2.1* - 5.2.2*
Parameter
Current Loop
Function
Scaling
Relay Contacts
5.3*
Alarm Relay
5.3.1*
5.2.x.40
Alarm oxygen
5.3.1.1*
5.1.1.1*
5.1.1.2*
5.1.2.1*
Relay 1 and 2
5.3.2* and 5.3.3*
Input
5.3.4*
Sample Flow
5.3.1.2*
Sample Temp.
5.3.1.3*
Alarm Saturation
5.3.1.4*
Case Temp.
5.3.1.5*
Function
Parameter
Setpoint
Hysteresis
Delay
Active
Signal Outputs
Output/Control
Fault
Delay
* Menu numbers
5.2.1.1 - 5.2.2.1*
5.2.1.2 - 5.2.2.2*
5.2.1.3 - 5.2.2.3*
Range Low
Range High
Alarm High
Alarm Low
Hysteresis
Delay
Flow Alarm
Alarm High
Alarm Low
Alarm High
Alarm Low
Alarm High
Alarm Low
Hysteresis
Delay
Case Temp. high
Case Temp. low
5.3.2.1–5.3.3.1*
5.3.2.20–5.3.3.20*
5.3.2.300–5.3.3.301*
5.3.2.400–5.3.3.401*
5.3.2.50–5.3.3.50*
5.3.4.1*
5.3.4.2*
5.3.4.3*
5.3.4.4*
5.3.4.5*
5.2.x.40.10/11*
5.2.x.40.20/21*
5.3.1.1.1*
5.3.1.1.25
5.3.1.1.35
5.3.1.1.45
5.3.1.2.1
5.3.1.2.2*
5.3.1.2.35*
5.3.1.3.1*
5.3.1.3.25*
5.3.1.4.1*
5.3.1.4.25
5.3.1.4.35
5.3.1.4.45
5.3.1.5.1*
5.3.1.5.2*
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Program Overview
Miscellaneous
5.4*
Interface
5.5*
Language
Set defaults
Load Firmware
Password
5.4.4*
5.4.1*
5.4.2*
5.4.3*
Messages
Maintenance
Operation
Sample ID
Installation
5.4.5*
Line Break Detection
5.4.6*
Protocol
Device Address
Baud Rate
Parity
5.5.1*
5.5.21*
5.5.31*
5.5.41*
5.4.4.1*
5.4.4.2*
5.4.4.3*
5.4.4.4*
* Menu numbers
(only with RS485 interface)
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Program List and Explanations
9.
Program List and Explanations
1 Messages
1.1 Pending Errors
1.1.5
Provides the list of active errors with their status (active, acknowledged). If an active error is acknowledged, the alarm relay is active again. Cleared errors are moved to the Message list.
1.2 Maintenance List
1.2.5
Provides the list of necessary maintenance. Cleared maintenance messages are moved to the Message list.
1.3 Message List
1.3.1
Shows the error history: Error code, date / time of issue and status
(active, acknowledged, cleared). 65 errors are memorized. Then the oldest error is cleared to save the newest error (circular buffer).
2 Diagnostics
In diagnostics mode, the values can only be viewed, not modified.
2.1 Identification
Desig.: Designation of the instrument.
Version: Firmware of instrument (e.g. 6.20-06/16)
2.1.3
Factory Test: Test date of the Instrument and Motherboard.
2.1.4
Operating Time: Shows the operating time in Years, Days, Hours,
Minutes and Seconds.
2.2 Sensors
2.2.1
Oxytrace G
Current value: Shows the actual measuring value in ppb.
Raw value tc:
Shows the actual temperature compensated measuring value in mA.
Saturation
Shows the actual saturation in %
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Program List and Explanations
2.2.1.4
Cal. History
Review the diagnostic values of the last calibration of the oxygen sensor. Max. 64 data records are memorized.
Number: Calibration counter.
Date, Time: Date and time of the calibration.
Sat. Current: Saturation current at that time of calibration.
Air pressure: Air pressure at that time of calibration.
2.2.2
Miscellaneous:
2.2.2.1
Case Temp: Shows the actual temperature in °C inside the transmitter.
Air pressure: Shows the actual air pressure in hPa
2.2.3
QA History
Review QA values (Number, Date, Time, Deviation oxygen, Deviation Temperature, Status of QA check) of the last quality assurance procedures.
2.3 Sample
2.3.301
Sample ID: Shows the assigned sample identification. This identification is defined by the user to identify the location of the sample
Temperature: Shows temperature in °C.
(Nt5K): Shows raw value of the temperature in
Sample Flow: Shows the sample flow in l/h
(Raw value) Shows the sample flow in Hz
2.4 I/O State
Shows actual status of all in- and outputs.
2.4.1
Alarm Relay:
Relay 1 and 2:
Input:
Active or inactive.
Active or inactive.
Open or closed.
Signal Output 1 and 2: Actual current in mA
Signal Output 3:
Actual current in mA (if option is installed)
2.5 Interface
2.5.1
Only available if optional interface is installed.
Shows the programmed communication settings.
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Program List and Explanations
3 Maintenance
3.1 Calibration
3.1.1
Start a calibration and follow the instructions on the screen. Displayed values are saturation in % and the saturation current in mA.
The indication bar shows the progress. Detailed explanation see
.
3.2 Service
3.2.1
Electrolyte
Last Filling: Shows the date of the last filling of electrolyte.
Remaining Amount: Remaining amount of electrolyte in %.
Remaining Time: Remaining time in days until electrolyte exchange recommended.
3.2.1.5
New Filling: Select “Yes” after electrolyte exchange to reset the counter.
3.2.2
Faraday Verification
Start a manual faraday verification. Displayed values are current value in ppb and the faraday concentration in %.
Current value: Measuring value in ppb
Faraday conc.: Oxygen concentration in % after activating the faraday verification.
Progress: The progress bar shows the progress of the faraday verification.
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Program List and Explanations
3.3 Simulation
In this menu the following relays and signal outputs can be tested:
Alarm relay
Relay 1 and 2
Signal output 1 and 2
Signal output 3 (if option is installed)
Select a relay or signal output with the [ ] or [ ] keys, press the [Enter]> key to confirm. Then change the value with the
[ ] or [ ] keys. After confirming the setting with the [Enter] key, the value is simulated by the relay/signal output.
Alarm Relay:
Relay 1 and 2:
Input:
Active or inactive.
Active or inactive.
Open or closed.
Signal Output 1 and 2: Current in mA
Signal Output 3:
Current in mA (if option is installed)
At the absence of any key activities, the instrument will switch back to normal mode after 20 min. If you quit the menu, all simulated values will be reset.
3.4 Set Time
Adjust date and time.
3.5 Quality Assurance
Performs a Quality Assurance according to your settings. Follow
the commands on the screen. Detailed explanation see Quality Assurance of the Instrument, p. 51
.
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Program List and Explanations
4 Operation
4.1 Sensors
4.1.1
Filter Time Constant: Used to damp noisy signals. The higher the filter time constant, the slower the system reacts to changes of the measured value.
Range: 5–300 Sec
4.1.2
Hold after Cal: Delay permitting the instrument to stabilize again after calibration. During calibration plus hold-time, the signal outputs are frozen (held on last valid value), alarm values, limits are not active.
Range: 0–6‘000 Sec
4.1.3
Faraday Parameter
4.1.3.1
Mode: Can be set to Interval, daily, weekly or off. If Mode is set to
“Off”, no further settings are available. The Faraday Verification has to be started manually.
4.1.3.20
Interval: The interval can be set between 1h and 12h
4.1.3.21
Start Time: Start time appears if Mode is set to daily, how to set the start time see 5.3.2.341, p. 84 .
4.1.3.22
Calendar: Calendar appears if Mode is set to weekly, how to set the Calendar see
.
4.1.3.3
Delay: during Faraday Verification plus the delay time the signal and control outputs are held in the operating mode programmed below.
Range: 0–6’000 Sec.
4.1.3.4
Signal Outputs: Select operating mode of the signal output:
Cont.:
Signal outputs continue to issue the measured value.
Hold:
Signal outputs hold the last valid measured value.
Measurement is interrupted. Errors, except fatal errors, are not issued.
Off:
Signal outputs are switched off (set to 0 or 4 mA).
Errors, except fatal errors, are not issued.
4.1.3.5
Output/Control: Select operating mode of the controller output:
Cont.:
Controller continues normally.
Hold:
Controller continues based on the last valid value.
Off:
Controller is switched off.
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Program List and Explanations
4.2 Relay Contacts
4.3 Logger
The instrument is equipped with an internal logger. The data can be copied to the USB stick installed in the transmitter.
The logger can save approx. 1500 data records. The Records consists of: Date, time, alarms, measuring values, raw values, case temperature, flow.
4.3.1
Log Interval: Select a convenient log interval. Consult the table below to estimate the max logging time. When the logging buffer is full, the oldest data record is erased to make room for the newest one (circular buffer).
Range: 1 Second to 1 hour
Interval
Time
1 s 5 s
25 min 2 h
1 min
25 h
5 min
5 d
10 min
10 d
30 min
31 d
1 h
62 d
4.3.2
Clear Logger: If confirmed with yes, the complete logger data is deleted. A new data series is started.
5 Installation
5.1 Sensors
5.1.1
Miscellaneous
5.1.1.1
Flow: If a flow cell without flow measurement (e.g. B-Flow) is used, choose none. With flow measurement select Q-Flow
5.1.1.2
O2 Offset: Manual, small correction of the offset.
Range -5 to 5 ppb
5.1.2
Quality Assurance: Switch the Quality Assurance on or off.
5.1.2.1
Level: Select quality level:
Level 0: Off
Quality assurance procedure switched off. Any additional QA menus are hidden.
Level 1: Trend
Level 2: Standard
Level 3: Crucial
Level 4: User
Edit user specific limits in menu 5.1.2.2
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Program List and Explanations
5.2 Signal Outputs
NOTICE: The navigation in the menu <Signal Output 1> and
<Signal Output 2> is equal. For reason of simplicity only the menu numbers of Signal Output 1 are used in the following.
5.2.1 and 5.2.2
Signal Output 1 and 2: Assign process value, the current loop range and a function to each signal output.
5.2.1.1
Parameter: Assign one of the process values to the signal output.
Available values:
Oxygen
Temperature
Sample Flow (if a flow sensor is selected)
Saturation
5.2.1.2
Current Loop: Select the current range of the signal output.
Make sure the connected device works with the same current range.
Available ranges: 0–20 mA or 4–20 mA
5.2.1.3
Function: Define if the signal output is used to transmit a process value or to drive a control unit. Available functions are:
Linear, bilinear or logarithmic for process values.
See As process values, p. 75
Control upwards or control downwards for controllers.
See As control output, p. 77
As process values
The process value can be represented in 3 ways: linear, bilinear or logarithmic. See graphs below.
[mA]
20
B A
10 12
A
B
0 / 4
0.0
linear
0.1
bilinear
0.2
0.3
0.4
X
0.5
X Measured value
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Program List and Explanations
[mA]
20
10 12
0 / 4
1
0
4 6
10
1
X
2
100
2
1’000 10’000
3 4
X Measured value (logarithmic)
5.2.1.40
Scaling: Enter beginning and end point (Range low & high) of the linear or logarithmic scale. In addition, the midpoint for the bilinear scale.
Parameter: Oxygen.
Range low: 0.00 ppb –20.00 ppm
Range high: 0.00 ppb –20.00 ppm
Parameter: Temperature
Range low: -30 to + 130 °C
Range high: -30 to + 130 °C
Parameter: Sample flow
Range low: 0–50 l/h
Range high: 0–50 l/h
Parameter: Saturation
Range low: 0–200 %
Range high: 0–200 %
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Program List and Explanations
As control output
Signal outputs can be used for driving control units. We distinguish different kinds of controls:
P-controller: The controller action is proportional to the deviation from the setpoint. The controller is characterized by the
P-Band. In the steady-state, the setpoint will never be reached. The deviation is called steady-state error.
Parameters: setpoint, P-Band
PI-controller: The combination of a P-controller with an
I-controller will minimize the steady-state error. If the reset time is set to zero, the I-controller is switched off.
Parameters: setpoint, P-Band, reset time.
PD-controller: The combination of a P-controller with a
D-controller will minimize the response time to a fast change of the process value. If the derivative time is set to zero, the
D-controller is switched off.
Parameters: setpoint, P-Band, derivative time.
PID-controller: The combination of a P-, an I - and a D-controller allows a proper control of the process.
Parameters: setpoint, P-Band, reset time, derivative time.
Ziegler-Nichols method for the optimization of a PID controller:
Parameters: Setpoint, P-Band, Reset time, Derivative time
Y
B
A
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X
a
A
B
X
L
Response to maximum control output
Tangent on the inflection point
Time
Xp
Tn
Tv
= 1.2/a
= 2L
= L/2
The point of intersection of the tangent with the respective axis will result in the parameters a and L.
Consult the manual of the control unit for connecting and programming details. Choose control upwards or downwards.
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78
Setpoint: User defined precess value for the selected parameter.
P-Band: Range below (upwards control) or above (downwards control) the set-point, within which the dosing intensity is reduced from
100% to 0% to reach the set-point without overshooting.
5.2.1.43
Control Parameters: if Parameter = Oxygen
5.2.1.43.10
Setopint:
Range: 0.00 ppb –20.00 ppm
5.2.1.43.20
P-Band:
Range: 0.00 ppb –20.00 ppm
5.2.1.43
Control Parameters: if Parameter = Temperature
5.2.1.43.11
Setopint:
Range: -30 to + 130 °C
5.2.1.43.21
P-Band:
Range: 0 to + 100 °C
5.2.1.43
Control Parameters: if Parameter = Sample flow
5.2.1.43.12
Setopint:
Range: 0–50 l/h
5.2.1.43.22
P-Band:
Range: 0–50 l/h
5.2.1.43
Control Parameters: if Parameter = Saturation
5.2.1.43.13
Setopint:
Range: 0–200%
5.2.1.43.23
P-Band:
Range: 0–200%
5.2.1.43.3
Reset time: The reset time is the time till the step response of a single I-controller will reach the same value as it will be suddenly reached by a P-controller.
Range: 0–9’000 sec
5.2.1.43.4
Derivative time: The derivative time is the time till the ramp response of a single P-controller will reach the same value as it will be suddenly reached by a D-controller.
Range: 0–9’000 sec
5.2.1.43.5
Control timeout: If a controller action (dosing intensity) is constantly over 90% during a defined period of time and the process value does not come closer to the setpoint, the dosing process will be stopped for safety reasons.
Range: 0–720 min
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Program List and Explanations
5.3 Relay Contacts
5.3.1
Alarm Relay: The alarm relay is used as cumulative error indicator.
Under normal operating conditions the contact is active.
The contact is inactive at:
Power loss
Detection of system faults like defective sensors or electronic parts
High case temperature
Process values out of programmed ranges.
Program alarm levels for the following parameters:
Oxygen
Temperature
Sample Flow
Case Temperature high
Case Temperature low
5.3.1.1
Alarm oxygen
5.3.1.1.1
Alarm High: If the measured value rises above the alarm high value, the alarm relay is activated and E001 is displayed in the message list.
Range: 0.00 ppb –20.00 ppm
5.3.1.1.25
Alarm Low: If the measured value falls below the alarm low value, the alarm relay is activated and E002 is displayed in the message list.
Range: 0.00 ppb –20.00 ppm
5.3.1.1.35
Hysteresis: Within the hyst. range, the relay does not switch. This prevents damage of relays contacts when the measured value fluctuates around the alarm value.
Range. 0.00 ppb –20.00 ppm
5.3.1.1.45
Delay: Duration, the activation of the alarm relay is retarded after the measuring value has risen above/fallen below the programmed alarm.
Range: 0–28‘800 Sec
5.3.1.2
Sample Flow: Define at which sample flow a flow alarm should be issued.
5.3.1.2.1
Flow Alarm: Program if the alarm relay should be activated if there is a flow alarm. Choose between yes or no. The flow alarm will always be indicated in the display, pending error list, saved in the message list and the logger.
Available values: Yes or no
NOTICE: Sufficient flow is essential for a correct measurement.
We recommend to program yes.
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80
5.3.1.2.2
Alarm High: If the measuring values rises above the programmed value E009 will be issued.
Range: 12–50 l/h
5.3.1.2.35
Alarm Low: If the measuring values falls below the programmed value E010 will be issued.
Range: 8–11 l/h
5.3.1.3
Sample Temp.: Define at which sample temperature an alarm should be issued.
5.3.1.3.1
Alarm High: If the measured value rises above the alarm high value, the alarm relay is activated and E007 is issued.
Range: 30–100 °C
5.3.1.3.25
Alarm Low: If the measured value rises above the alarm high value, the alarm relay is activated and E008 is issued.
Range: -10 to + 20 °C
5.3.1.4
Alarm Saturation
5.3.1.4.1
Alarm High: If the measured value rises above the alarm high value, the alarm relay is activated and E003, is displayed in the message list.
Range: 0.00 –200 %
5.3.1.4.25
Alarm Low: If the measured value falls below the alarm low value, the alarm relay is activated and E004 is displayed in the message list.
Range: 0.00 –200 %
5.3.1.4.35
Hysteresis: Within the hyst. range, the relay does not switch. This prevents damage of relays contacts when the measured value fluctuates around the alarm value.
Range. 0.00 –200 %
5.3.1.4.45
Delay: Duration, the activation of the alarm relay is retarded after the measuring value has risen above/fallen below the programmed alarm.
Range: 0–28‘800 Sec
5.3.1.5
Case Temp.
5.3.1.5.1
Case Temp. high: Set the alarm high value for temperature of electronics housing. If the value rises above the programmed value
E013 is issued.
Range: 30–75 °C
5.3.1.5.2
Case Temp. low: Set the alarm low value for temperature of electronics housing. If the value falls below the programmed value
E014 is issued.
Range: -10 to + 20 °C
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Program List and Explanations
5.3.2 and 5.3.3
Relay 1 and 2: The function of relay contacts 1 or 2 are defined by the user
NOTICE: The navigation in the menu <Relay 1> and <Relay 2> is equal. For reason of simplicity only the menu numbers of
Relay 1 are used in the following.
1 First select the functions as:
- Limit upper/lower,
- Control upwards/downwards,
- Timer
- Fieldbus,
2 Then enter the necessary data depending on the selected function. The same values may also be entered in menu 4.2 Relay
Contacts, p. 74
5.3.2.1
Function = Limit upper/lower:
When the relays are used as upper or lower limit switches, program the following:
5.3.2.20
Parameter: choose one of the following process values
Oxygen
Temperature
Sample Flow
Saturation
5.3.2.300
Setpoint: If the measured value rises above respectively falls below the set-point, the relay is activated.
Parameter
Oxygen
Temperature
Sample flow
Saturation
Range
0.00 ppb –20.00 ppm
-30 to + 130 °C
0–50 l/h
0–200%
5.3.2.400
Hysteresis: within the hysteresis range, the relay does not switch.
This prevents damage of relay contacts when the measured value fluctuates around the alarm value.
Parameter
Oxygen
Temperature
Sample flow
Saturation
Range
0.00 ppb –20.00 ppm
0–100 °C
0–50 l/h
0–200%
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Program List and Explanations
5.3.2.50
Delay: Duration, the activation of the alarm relay is retarded after the measuring value has risen above/fallen below the programmed alarm.
Range. 0–600 Sec
5.3.2.1
Function = Control upwards/downwards
The relays may be used to drive control units such as solenoid valves, membrane dosing pumps or motor valves. When driving a motor valve both relays are needed, relay 1 to open and relay 2 to close the valve.
5.3.2.22
Parameter: choose one of the following process values
Oxygen
Temperature
Sample Flow
Saturation
5.3.2.32
Settings
Choose the respective actuator:
Time proportional
Frequency
Motor valve
Actuator = Time proportional
Examples of metering devices that are driven time proportional are solenoid valves, peristaltic pumps.
Dosing is controlled by the operating time.
5.3.2.32.20
Cycle time: duration of one control cycle (on/off change).
Range: 0–600 sec.
5.3.2.32.30
Response time: Minimal time the metering device needs to react.
Range: 0–240 sec.
5.3.2.32.4
Control Parameters:
Range for each Parameter same as
Actuator = Frequency
Examples of metering devices that are pulse frequency driven are the classic membrane pumps with a potential free triggering input.
Dosing is controlled by the repetition speed of dosing shots.
5.3.2.32.21
Pulse frequency: Max. pulses per minute the device is able to respond to. Range: 20–300/min.
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Program List and Explanations
5.3.2.32.31
Control Parameters:
Range for each Parameter same as 5.2.1.43, p. 78
Actuator = Motor valve
Dosing is controlled by the position of a motor driven mixing valve.
5.3.2.32.22
Run time: Time needed to open a completely closed valve
Range: 5–300 Sec.
5.3.2.32.32
Neutral zone: Minimal response time in % of the runtime. If the requested dosing output is smaller than the response time, no change will take place.
Range: 1–20 %
5.3.2.32.4
Control Parameters:
Range for each Parameter same as 5.2.1.43, p. 78
5.3.2.1
Function = Timer
The relay will be activated repetitively depending on the programmed time scheme.
5.3.2.24
Mode: Operating mode (interval, daily, weekly)
5.3.2.24
Interval
5.3.2.340
Interval: The interval can be programmed within a range of 1–1’440 min.
5.3.2.44
Run Time: Enter the time the relay stays active.
Range: 5–32’400 sec.
5.3.2.54
Delay: during run time plus the delay time the signal and control outputs are held in the operating mode programmed below.
Range: 0–6’000 Sec.
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Program List and Explanations
5.3.2.6
Signal Outputs: Select operating mode of the signal output:
Cont.:
Signal outputs continue to issue the measured value.
Hold:
Signal outputs hold the last valid measured value.
Measurement is interrupted. Errors, except fatal errors, are not issued.
Off:
Signal outputs are switched off (set to 0 or 4 mA).
Errors, except fatal errors, are not issued.
5.3.2.7
Output/Control: Select operating mode of the controller output:
Cont.:
Controller continues normally.
Hold:
Controller continues based on the last valid value.
Off:
Controller is switched off.
5.3.2.24
daily
The relay contact can be activated daily, at any time of a day.
5.3.2.341
Start time: to set the start time proceed as follows:
1 Press [Enter], to set the hours.
2 Set the hour with the [ ] or [ ] keys.
3 Press [Enter], to set the minutes.
4 Set the minutes with the [ ] or [
5 Press [Enter], to set the seconds.
6 Set the seconds with the [ ] or [
] keys.
] keys.
Range: 00:00:00–23:59:59
5.3.2.44
Run Time: see Interval
5.3.2.54
Delay: see Interval
5.3.2.6
Signal Outputs: see Interval
5.3.2.7
Output/Control: see Interval
5.3.2.24
weekly
The relay contact can be activated at one or several days, of a week. The daily starting time is valid for all days.
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Program List and Explanations
5.3.2.342
Calendar:
5.3.2.342.1
Start time: The programmed start time is valid for each of the programmed days. To set the start time see 5.3.2.341, p. 84 .
Range: 00:00:00–23:59:59
5.3.2.342.2
Monday: Possible settings, on or off to
5.3.2.342.8
Sunday: Possible settings, on or off
5.3.2.44
Run Time: see Interval
5.3.2.54
Delay: see Interval
5.3.2.6
Signal Outputs: see Interval
5.3.2.7
Output/Control: see Interval
5.3.2.1
Function = Fieldbus
The relay will be switched via the Profibus input. No further parameters are needed.
5.3.4
Input: The functions of the relays and signal outputs can be defined depending on the position of the input contact, i.e. no function, closed or open.
5.3.4.1
Active: Define when the input should be active:
No:
Input is never active.
When closed Input is active if the input relay is closed
When open:
Input is active if the input relay is open
5.3.4.2
Signal Outputs: Select the operation mode of the signal outputs when the relay is active:
Cont.:
Hold:
Off:
Signal outputs continue to issue the measured value.
Signal outputs issue the last valid measured value.
Measurement is interrupted. Errors, except fatal errors, are not issued.
Set to 0 or 4 mA respectively. Errors, except fatal errors, are not issued.
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Program List and Explanations
5.3.4.3
Output/Control: (relay or signal output):
Cont.:
Hold:
Off:
Controller continues normally.
Controller continues on the last valid value.
Controller is switched off.
5.3.4.4
Fault:
No:
Yes:
No message is issued in pending error list and the alarm relay does not close when input is active. Message E024 is stored in the message list.
Message E024 is issued and stored in the message list. The Alarm relay closes when input is active.
5.3.4.5
Delay: Time which the instrument waits, after the input is deactivated, before returning to normal operation.
Range: 0–6‘000 Sec
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Program List and Explanations
5.4 Miscellaneous
5.4.1
Language: Set the desired language.
Available settings: German /English/French/Spanish
5.4.2
Set defaults: Reset the instrument to factory default values in three different ways:
Calibration: Sets calibration values back to default. All other values are kept in memory.
In parts: Communication parameters are kept in memory. All other values are set back to default values.
Completely: Sets back all values including communication parameters.
5.4.3
Load Firmware: Firmware updates should be done by instructed service personnel only.
5.4.4
Password: Select a password different from 0000 to prevent unauthorized access to the menus “Messages”, “Maintenance”, “Operation” and “Installation”.
Each menu may be protected by a different password.
If you forgot the passwords, contact the closest SWAN representative.
5.4.5
Sample ID: Identify the process value with any meaning full text, such as KKS number.
5.4.6
Line Break Detection: If activated, error message E028 is shown in case of line break on signal outputs 1 and 2.
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Program List and Explanations
5.5 Interface
5.5.1
5.5.20
5.5.30
5.5.40
5.5.1
5.5.21
5.5.31
5.5.41
5.5.1
5.5.1
5.5.24
Select one of the following communication protocols. Depending on your selection, different parameters must be defined.
Protocol: Profibus
Device address:
ID-Nr.:
Local operation:
Range: 0–126
Range: Analyzer; Manufacturer; Multivariable
Range: Enabled, Disabled
Protocol: Modbus RTU
Device address:
Range: 0–126
Baud Rate:
Range: 1200–115 200 Baud
Parity:
Range: none, even, odd
Protocol: USB-Stick
Only visible if an USB interface is installed. No further settings are possible.
Protocol: HART
Device address:
Range: 0–63
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Material Safety Data sheets
10. Material Safety Data sheets
10.1. Reagents
Catalogue No.:
Product name:
102751.10
Filling solution 1ALK
Part of: A-87.290.060
Download
MSDS
The current Material Safety Data Sheets (MSDS) for the above listed Reagents are available for downloading at www.swan.ch.
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Default Values
11.
Default Values
Operation:
Sensors: Filter Time Const.:..................................................................10 Sec
Hold after Cal.:.....................................................................300 Sec
Faraday Parameter:
Mode: ................................................................................ Interval
Interval:..............................................................................3 hours
Delay .................................................................................. 60 sec
Signal Outputs........................................................................ hold
Output/Control ....................................................................... hold
Alarm Relay ...................................................................... same as in Installation
Relay 1/2 ...................................................................... same as in Installation
Input ...................................................................... same as in Installation
Logger: Logger Interval:.............................................................. 30 Minutes
Clear Logger: ................................................................................no
Installation:
Sensors Miscellaneous:
Flow:.................................................................................. Q-Flow
O2 Offset: ..........................................................................0.0 ppb
Quality Assurance:
Level:.................................................................................... 0: Off
Signal Output 1 Parameter: ........................................................................... Oxygen
Current loop: .....................................................................4 –20 mA
Function: .................................................................................. linear
Scaling: Range low: ............................................................0.00 ppb
Scaling: Range high:........................................................10.00 ppm
Signal Output 2 Parameter: ....................................................................Temperature
Current loop: .....................................................................4 –20 mA
Function: .................................................................................. linear
Scaling: Range low: ................................................................0.0 °C
Scaling: Range high:.............................................................50.0 °C
Alarm Relay: Alarm oxygen; Alarm high:...............................................10.00 ppm
Alarm oxygen; Alarm low: ...................................................0.00 ppb
Alarm oxygen; Hysteresis: ...................................................100 ppb
Alarm oxygen; Delay:...............................................................5 Sec
Sample Flow, Flow Alarm: .......................................................... yes
Sample Flow, Alarm high: .................................................... 25.0 l/h
Sample Flow, Alarm low:........................................................ 8.0 l/h
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Default Values
Sample Temp., Alarm High: ..................................................... 50 °C
Sample Temp., Alarm Low:........................................................ 0 °C
Alarm Saturation; Alarm high..................................................120 %
Alarm Saturation; Alarm low ....................................................0.0 %
Alarm Saturation; Hysteresis ......................................................2 %
Alarm Saturation; Delay...........................................................5 Sec
Case temp. high: ..................................................................... 65 °C
Case temp. low:......................................................................... 0 °C
Relay 1 Function:.......................................................................... limit upper
Parameter:............................................................................Oxygen
Setpoint: .......................................................................... 10.00 ppm
Hysteresis:........................................................................... 100 ppb
Delay: ....................................................................................30 Sec
Relay 2 Function:.......................................................................... limit upper
Parameter:....................................................................Temperature
Setpoint: .................................................................................. 50 °C
Hysteresis:.............................................................................. 1.0 °C
Delay: ....................................................................................30 Sec
If Function = Control upw. or dnw:
Parameter:............................................................................Oxygen
Settings: Actuator: .......................................................... Frequency
Settings: Pulse Frequency: .............................................120/min.
Settings: Control Parameters: Setpoint:....................... 10.00 ppm
Settings: Control Parameters: P-band: ......................... 100.0 ppb
Settings: Control Parameters: Reset time:...........................0 Sec
Settings: Control Parameters: Derivative Time: ...................0 Sec
Settings: Control Parameters: Control Timeout:.................. 0 Min.
Settings: Act. Time prop.: Cycle time: ................................... 60 s
Settings: Act. Time prop.: Response time: ............................ 10 s
Settings: Act. Motor valve: Run time: .................................... 60 s
Settings: Act. Motor valve: Neutral zone: ................................5%
If Function = Timer:
Mode:.................................................................................... Interval
Interval: ................................................................................ 1 min
Mode: ........................................................................................daily
Start time:........................................................................ 00.00.00
Mode:..................................................................................... weekly
Calendar; Start time: ....................................................... 00.00.00
Calendar; Monday to Sunday:.................................................. Off
Run time: ...............................................................................10 Sec
Delay: ......................................................................................5 Sec
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Default Values
Signal output:............................................................................. cont
Output/Control: .......................................................................... cont
Input: Active ............................................................................when closed
Signal Outputs ........................................................................... hold
Output/Control .............................................................................. off
Fault..............................................................................................no
Delay......................................................................................10 Sec
Miscellaneous Language:............................................................................. English
Set default:....................................................................................no
Load firmware: ..............................................................................no
Password: ........................................................... for all modes 0000
Sample ID: ....................................................................... - - - - - - - -
Line break detection .....................................................................no
Interface Protocol:....................................................... depending on interface
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Index
12. Index
A
Alarm Relay
. . . . . . .
C
Cable thicknesses
Calendar
. . . . . .
. . . . . . . . . . .
Changing values
. . . . . . .
D
Default Values
. . . . . . . .
E
Electrolyte exchange
. . . .
Establish Sample Flow
. . .
F
Fluidics
. . . . . . . . . .
I
Input
. . . . . . . . . . . .
Instrument Setup
. . . . . .
Interface
HART
USB
. . . . . . . . . .
Profibus, Modbus
. . . .
. . . . . . . . . . .
L
Longer Stop of Operation
. .
M
Mounting requirements
. . .
P
P-Band
. . . . . . . . . . . .
Power Supply
PROFIBUS
. . . . . . . .
. . . . . . . . . .
R
Relay
. . . . . . . . . . . . .
S
Sample Flow
. . . . . . . . .
Sample requirements
Signal Outputs
Software
. . . .
. . . . . .
. . . . . . . . . . .
T
Temperature compensation
.
U
USB Interface
. . . . . . . .
W
Wire
. . . . . . . . . . . . . .
Z
Zero-Verification
. . . . . . .
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Notes
13. Notes
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Notes
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SWAN
is represented worldwide by subsidiary companies and distributors.
cooperates with independent representatives all over the world.
SWAN Products
Analytical Instruments for:
High Purity Water
Feedwater, Steam and Condensate
Potable Water
Pool and Sanitary Water
Cooling Water
Waste Water and Effluents
Made in Switzerland
96
A-96.250.531 / 300617
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