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22
8018429/1DWP/V3-0/2022-06| SICK
A D D E N D U M T O O P E R A T I N G I N S T R U C T I O N S | GMS840
Subject to change without notice
4
COMMISSIONING OF GMS841 (ATEX/ IECEX) AND GMS842 (
C
CSA
US)
4
Commissioning of GMS841 (ATEX/ IECEx) and GMS842 (
C
CSA
US)
Before commissioning
▸
Make a visual leak check of the enclosure (enclosure cover, cable inlet and gas inlets).
If the enclosure is deformed or damaged: Do not put the enclosure
GMS84x
into
operation and secure against unauthorized commissioning.
▸
If the enclosure was opened: Make sure the atmosphere in the enclosure is not
inflammable.
Fig. 7: Power supply unit
1
Before switching on: If work was carried out on the power supply unit: Before switching
on make sure that a correct power supply unit (compliant with CCSAUS or ATEX/IECEx)
has been installed.
2
Seal the enclosure tight,
see “Closing the enclosure tight”, page 21
3
If the enclosure has purge gas connections (option): Put the purge gas supply into
operation.
4
Put the device into operation.
WARNING: Risk of explosion
▸
Do not carry out work on the device in potentially explosive atmospheres.
▸
Only use tools approved for Ex zones.
Power supply unit