User Manual - PolyGard
®
2 / µGard
®
2
Sensors for Toxic Gases and Oxygen
Page
6
PolyGard
/ µGard
®
are registered trademarks of MSR
GA_SC2_MC2_Tox_D_0618
Phone 0049(0)8531/9004-0
Fax: 0049(0)8531/9004-54
Specification subject to change without notice
MSR-Electronic GmbH, Würdinger Str. 27, D 94060 Pocking www:msr-electronic.de
Printed in Germany
5 Calibration
The service tool DGC STL_06 or DGC_06 EasyConf software are available for convenient on-site calibration.
See description of Service Tool DGC STL_06 or DGC_06 EasyConf Software.
There is also the possibility to exchange the SC against a calibrated SC on site. The used SC can then be
calibrated directly in the office or at the MSR_E Calibration Service and then reused again.
Prior to calibration the Sensor Cartridge must be supplied with power voltage without interruption
for warm-up and stabilisation. The warm-up time depends on the sensor element and is shown in
the following table:
Gas type
Formula Calibration
with
replacement gas
Sensitivity in %)
Warm-
up (h)
Flow rate
(ml/min)
Calibration
interval in
months
1
Ammonia
NH
3
-
18
300
12
Chlorine
Cl
2
-
6
150
6
Hydrogen fluoride
HF
NO
2
(80 %)
6
150
6
Hydrogen cyanide
HCN
-
6
300
6
Hydrogen chloride
HCL
-
1
150
6
Ethylene
C
2
H
4
-
6
150
12
Fluorine
F
2
-
6
300
6
Formaldehyde
CH
2
O
-
24
300
6
Carbon monoxide
CO
-
1
150
12
Ozone
O
3
-
6
150
12
Phosphine
PH
3
6
150
12
Sulphur dioxide
SO
2
-
6
300
12
Hydrogen sulphide
H
2
S
-
6
150
12
Silane
SiH
4
-
6
150
12
Nitrogen dioxide
NO
2
-
6
500
12
Nitrogen monoxide
NO
-
4
150
12
Oxygen
O
2
-
1
150
24
1
Manufacturer-recommended calibration interval for normal environmental conditions
Table Calibration
Please observe proper handling procedures for compressed gas and test gas bottles (regulations
TRGS 220)!
Test gas can be toxic, so never inhale it!
Symptoms: Dizziness, headache and nausea.
Procedure if exposed: Remove victim to fresh air at once, seek medical attention.
5.1 Calibration Work
Prior to calibration you have to activate the mode “Special Mode” at the basic device, only then the calibration
menu is e
nabled. During the special mode the basic device doesn’t issue alerts.
Connect calibration adapter carefully to the sensor cartridge.
Connect calibration tool you want to use to the Basic Sensor Board.
Select the Sensor Cartridge to be calibrated by selecting the gas type.
