SICK GMS815P-PS-2G, Supplementary Operating Instructions, Page: 30 / 40

30 GMS815P-PS-2G/-3G · Supplementary Operating Instructions · 8016234 V2.0 · © SICK AG
Maintenance
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5.1
Function test of the pressurized enclosure system
Recommendation
▸
Check the protective function of the pressurized enclosure system in more or less half-
yearly intervals.
Procedure
1 Keep the GMS800 in operation.
2 Secure connected locations and devices:
▸
Inform any connected stations.
▸
Secure or deactivate connected devices (e.g. measured value recording).
▸
Passivate/deactivate connected signaling units (alarm signaling, status signaling).
3 Interrupt protective gas feed.
4 Check whether the GMS800 is switched off automatically afterwards.
5.2
Leak tightness checks
5.2.1
Leak tightness check of the sample gas lines
If the sample gas path was opened during maintenance work:
▸
Check the leak tightness of the connected sample gas lines after the maintenance
work.
If it is suspected that the sample gas path could become leaky during operation (e.g. due
to special sample gas properties):
▸
Check the leak tightness of the connected sample gas lines in regular intervals.
5.2.2
Leak tightness check of the purge gas paths
Only valid for versions with purge gas connections ( → p. 17, §3.3.4 )
▸
Check the leak tightness of purge gas paths at least once a year.
▸
Check in the same manner as for leak tightness of sample gas lines (procedure
→ “GMS800 Series” Operating Instructions).
If this is the case: If this is not the case:
1 Start protective gas feed again.
2 Check whether the GMS800 starts
automatically again.
If this is the case: The check was
successful.
The check was not successful.
1 Shut the GMS800 down (switch main
switch off).
2 Inform skilled persons to have the
system repaired.
The specified leak tightness checks are part of the approval conditions ( → p. 8,
§1.5 ).
Leak tightness check procedure → “GMS800 Series” Operating Instructions