69
8024250/18HT/V2-0/2020-12| SICK
O P E R A T I N G I N S T R U C T I O N S | ZIRKOR200 Ex-G
Subject to change without notice
MENU OVERVIEW AND EXPLANATIONS
7
9
Maintenance signal reset
(delayed after last test gas monitoring by the “Stopping time
until process” when “Hold measured value during adjustment” is switched on)
10
Return to main measured value display
7.2.19
2-point adjustment (manual)
During 2-point adjustment of the sensor, adjustment values
Offset
(constant) and
Slope
(steepness) are determined. For this purpose, two test gases are fed to the sensor. For
systems without integrated pneumatics, test air/test gas feed must be performed
manually, i.e. by the user, and the test gas flows must be checked and, if necessary,
readjusted.
Sequence
1
System code entry
2
Maintenance signal is set
3
Prompt for test gas feed
(only appears for systems without flow monitoring)
4
Adjustment with test gas
(test gas 1
)
5
Prompt for test air feed
(only appears for systems without flow monitoring)
6
Adjustment with test air
7
Prompt to terminate test gas feed
(only systems without internal flow monitoring)
8
Display of the process return when the difference between the previously measured O
2
concentration in the process and the O
2
concentration with test air is more than 3.00%
9
Prompt for test gas concentration(s)
10
Display of adjustment results
(max. 1 minute)
11
Maintenance signal reset
(delayed after last test gas monitoring by the “Stopping time
until process” when “Hold measured value during adjustment” is switched on)
12
Return to main measured value display
