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Calibration Instruction

1 Calibration Instruction for Salwico ST400 H2S

5103028_Salwico ST400 H2S_Calibration Instruction_I0_EN_2019_C

1

1 Calibration Instruction for Salwico ST400
H2S

1.1 Preliminaries

This instructions applies to the following products:

Figure 1. Salwico ST400 H2S, 0-30 ppm 4-20 mA. Part no. 4462

The H

2

S sensor is Electrochemical and measures H

2

S content by means of

chemical reaction.

DANGER!

H

2

S – Hydrogen Sulphide – is toxic and dangerous also in rather low concentrations.

H

2

S is a sticky gas and smells very distinctly from rotten eggs.

Consilium Replacement article number for ST400 H

2

S detectors is no.

004462-S

.

A new sensor is supplied without the metal housing and must be fitted in the
housing. This applies to both H

2

S and O

2

sensors of ST400 type.

Calibration equipment

Normal measuring range is 0-30 ppm, our standard calibration bottle no.

5201005-00A

contains 20 ppm of gas in air.

For SW2020 a mix-bottle is often used, with H

2

S 20 ppm as well as N

2

99% and

C

3

H

8

50% LEL, article no.

5201010-01A

.

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.

Summary of Contents for Salwico ST400 H2S

Page 1: ...Salwico ST400 H2S CGD50 500 Calibration Instruction...

Page 2: ...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 usa...

Page 3: ...ntrations H2S is a sticky gas and smells very distinctly from rotten eggs Consilium Replacement article number for ST400 H2S detectors is no 004462 S A new sensor is supplied without the metal housing...

Page 4: ...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 S...

Page 5: ...ibration 1 Connect the Multi meter set to mA as shown in the picture 2 Adjust with the ZERO potentiometer to 4 0 mA signal output 1 4 Calibrating the sensor Span calibration Verification of detector t...

Page 6: ...When the reading is stabilized adjust the readout to 14 6 mA or 16 8 mA with the SPAN potentiometer NOTE Response can be estimated to several minutes in some cases If this reading cannot be reached th...

Page 7: ...Calibration Instruction 1 Calibration Instruction for Salwico ST400 H2S 5103028_Salwico ST400 H2S_Calibration Instruction_I0_EN_2019_C 5...

Page 8: ...logies for the marine oil and gas transport and building sectors Our commitment goes beyond the products We protect the lives of mothers and fathers sisters and brothers colleagues and friends With re...

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