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8013741/16LH/V1-7/2020-04| SICK
O P E R A T I N G I N S T R U C T I O N S | MCS300P Ex
Subject to change without notice
7
MAINTENANCE
Peripherals
●
Sampling and discharging measured medium, tubes: Condition.
●
Test gas supply: Condition, availability (use-by date), pressures.
●
Protective gas: Condition, availability, pressures.
7.2.5
Zero and test gas feed
Feed a test gas with a defined test gas concentration (nominal value) and compare the
displayed measured value with the nominal value.
▸
Feed the test gas at the cell inlet (For systems: See System Description delivered with
the system).
▸
Test gas flow: Max. 100 l/h (to ensure adequate temperature and to avoid pressure
build-up).
▸
Observe an adequate run-in time of the test gas until the measured value is stable.
In case of deviation:
▸
Check the gas flow
▸
Check the gas path for leak tightness
▸
Correct the measured value:
– If programmed: In Menu
“Adjustment/automatic”, page 45
and see provided System
Description
– Or in Menu
or in the respective menu in SOPAS ET
The test gas must have approximately the same temperature as the cell (See System
Description delivered with the system).
▸
E.g., provide heated lines.
