KROHNE ESK4 Ex II2G Ex iEN - Manual (Page 10)

6
SERVICE
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ESK4... ...
www.krohne.com 05/2014 - 4001078702 MA ESK4 Ex II2G AD R02-en
Service
6.1 Maintenance
Maintenance work of a safety-relevant nature within the meaning of explosion protection may
only be carried out by the manufacturer, his authorised representative or under the supervision
of authorised inspectors.
For systems in hazardous areas, regular tests are required in order to maintain the proper
condition.
The following checks are recommended:
• checking the housing, connection terminals and feed lines for corrosion and/or damage.
Close the housing following any maintenance work on the electronic signal output.
6.2 Dismantling
Replacing the electronic signal output
Due to the modular design of the electronic signal output, it is possible to replace a module with
an identical spare part in accordance with safety guidelines.
If at all possible, the meter should be electrically isolated before removing and replacing the
indicator. If that is not possible, the basic conditions for intrinsic safety (e.g. no grounding or
connection of different intrinsically safe circuits to one another) must be observed during
dismantling.
Removal and installation are the responsibility of the operator.
CAUTION!
There may be a loss of measuring accuracy!
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