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Emerson Process Management GmbH & Co. OHG 3-1
CAT
Instruction Manual
HAS9xE-IM-ATEX
05/2007
CHAPTER 3
SERVICE AND MAINTENANCE
POSSIBLE EXPLOSION HAZARD
Inspection, maintenance and service must be carried out considering
all related standards (e.g. EN 60079-17 “Inspection and maintenance of
electrical installations in hazardous areas (other than mines)”
POSSIBLE EXPLOSION HAZARD
Service or replacement of safety related components or requiring to open
the instrument are permitted only if no hazardous atmosphere is present
and both the instrument and connected circuitry are de-energized!
Depending on the local regulation this may require a competent hot work
supervisor to ssue a hot work permit.
POSSIBLE EXPLOSION HAZARD
After maintenance or replacement of parts concerning explosion protection
an authority on explosion protection has to verify that the analyzer still meets
the requirements for explosion protection before it is switched on again.
Parts essential for explosion protection must not be repaired, they have to
be replaced if defective!
The authority has to issue a certicate for this and/or attach a test label to
the equipment before startup after maintenance or replacement of parts.