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INM9312-FB-ST-SS-1
Oct 2008
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10 MAINTENANCE
The enclosure may be opened while connected to power.
Intrinsically safe spurs can be worked on while connected to power.
10.1 Regular maintenance work
The type and scope of the checks that must be made are defined in the appropriate national regulations
(e.g. IEC 60079-17) .
Plan the intervals so that any defects in the equipment which may be anticipated are promptly
detected.
To check as part of the servicing/maintenance schedule:
♦
Check that cables and lines are clamped properly.
♦
Check tightness of the cable glands.
♦
Inspect housing for visible damage.
♦
Check the seal between the enclosure and cover (where appropriate).
♦
Look for signs of moisture in the enclosure.
♦
Check of operation within the published ambient temperature range.
10.2 Repair
work
10.3 Cleaning
♦
Clean with a damp cloth only, using water or mild, non-abrasive, non-scratching cleaning agents.
♦
Never use aggressive cleaning agents or solvents.
WARNING
Danger from energised parts!
Switch off the power to the fieldbus before opening the cover of the trunk
connections.
Secure the fieldbus against unauthorised activation.
Ex
WARNING
Danger due to improper maintenance/repairs!
Explosion protection is not guaranteed any longer.
Repairs to the device must only be performed by MTL
or an authorised representative
Ex
