161936 / 941160310020
2015-09-15·BA00·III·en·08
Maintenance and Repair
23
Zone 1 Ex e field device coupler
Series 9411/11
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11
Maintenance and Repair
11.1 Maintenance
• Consult the relevant national regulations to determine the type and extent of
inspections.
• Adapt inspection intervals to the operating conditions.
During maintenance of the device, check at least:
• the tight fit of the clamping screws holding the cables,
• the device enclosure and / or protective enclosure for cracks or other visible signs of
damage,
• the tightness of the cable glands.
• the gasket between enclosure and cover.
• the enclosure for moisture.
• whether the permissible ambient temperatures are observed,
• whether the device is used according to its designated use.
11.2 Maintenance
CAUTION
Risk of electric shock or malfunction of the device due to unauthorized
work!
Non-compliance can result in light injuries!
• Before carrying out work on the device, switch off voltage supply.
• Work performed on the device must only be carried out by
authorized and appropriately trained qualified electricians.
DANGER
Explosion hazard due to opened enclosure cover while fieldbus is
active!
Non-compliance results in severe or fatal injuries.
• Deactivate the fieldbus before opening the enclosure cover.
CAUTION
Danger of electric shock due to energised parts!
Non-compliance can result in minor injuries!
• All connections must be disconnected from the power supply.
• Secure the connections against unauthorized switching.
Observe the relevant national regulations in the country of use.