Consilium Salwico ST400 O2 Use and care manual

Salwico ST400 O2
Salwico GS5000
Calibration Instruction

Consilium Building Safety AB
Phone: [phone]
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E-mail: [email protected]
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The contents of this document are subject to revision without notice
due to continued progress in methodology, design and
manufacturing. Consilium Building Safety AB assumes no legal
responsibility for any error or damage resulting from the usage of
this document.
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January 2014
Document no. 5103029_Salwico ST400 O2_Calibration Instruction_I0_EN_2014_B
Part no. 5103029
© Copyright 2014, Consilium Building Safety AB

Calibration Instruction 1Calibration Instruction for Salwico ST400 O2
5103029_Salwico ST400 O2_Calibration Instruction_I0_EN_2014_B 1
1 Calibration Instruction for Salwico ST400
O2
1.1 Preliminaries
This instructions applies to the following products:
Figure 1. Salwico ST400 O2 0-25%. Part no. 4461
The O2sensor is Electrochemical and measures O2content by means of chemical
reaction.
NOTE!
The lifespan of the sensor is about one year, and it has a short shelf life – stocking
it on board is not advised and this will reduce the operational lifetime.
Consilium Replacement article for sensor only of ST400 O2detector is no. 004472.
A new sensor is supplied without the metal housing and must be fitted in the
housing. This applies to both H2S and O2sensors of ST400 type.
Calibration equipment
The O2is calibrated with fresh breathing air, and is normally 20.8%.
Test points (A) for the multi-meter as well as “SPAN” (B) and “ZERO” (C)
potentiometers are indicated below.
CAUTION!
Do not adjust the other potentiometers.

1Calibration Instruction for Salwico ST400 O2 Calibration Instruction
25103029_Salwico ST400 O2_Calibration Instruction_I0_EN_2014_B
A Test points
B SPAN potentiometer
C ZERO potentiometer
1.2 Prerequisites
1 Use the arrow keys on the control panel to
manoeuvre through the different menus.
Press the right arrow key to access the
menu tree.
2 Scroll to 4 Gas Detectors and press
Continue.
3 Scroll to the detector that should be
calibrated and press Options.
4 Scroll to 3 Disable and choose Continue.
5 You have to confirm the disablement before
you can proceed.
Press Disable to continue.

Calibration Instruction 1Calibration Instruction for Salwico ST400 O2
5103029_Salwico ST400 O2_Calibration Instruction_I0_EN_2014_B 3
6 You will get a confirmation message that
the detector has been disabled.
Press Close to continue.
7NOTE!
For the following steps in the zero
calibration instruction proceed to
the Salwico ST400 detector.
1.3 Calibrating the sensor (Span calibration)
Hint!
A typical sign for when lifespan of the O2sensor is up is drifting values, instable
readings and inability to set the 17.4 mA signal even with the SPAN potentiometer
in max position.
1 Connect a Multi-meter (set to mA) to the
test points and adjust the readout on the
“SPAN” pot to 17.4 mA when normal
breathing air is present.
1.4 Calibrating the sensor (Zero calibration)
For Zero adjustment a Nitrogen mix should be used, with a pure N2/Nitrogen
concentration.
A gas bottle with Hydrocarbons in N2can also be used, as long as the O2content is
zero per cent.
We recommend the Consilium article no. 5201006-00A with 100% N2.
1 Connect a Multi-meter (set to mA) to the
test points.
2 Connect the gas bottle and open the
regulator valve.
3 Wait for the mA signal to drop and
stabilize.
Adjust the reading with the “ZERO”
potentiometer to 4.0 mA.

1Calibration Instruction for Salwico ST400 O2 Calibration Instruction
45103029_Salwico ST400 O2_Calibration Instruction_I0_EN_2014_B
1.5 Reconnecting disabled detectors
All disablements in the Salwico GS5000 gas detection system are presented in the
disablements list. Any enablement is made from this list.
1 Scroll to Menu » Disablements.
2 Choose the detector you just disabled and press Options.
3 Select Reconnect and press Continue.

Calibration Instruction 1Calibration Instruction for Salwico ST400 O2
5103029_Salwico ST400 O2_Calibration Instruction_I0_EN_2014_B 5

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