KROHNE ESKII ESK3 PA ATEX II2G Ex i EN - Manual (Page 9)

SERVICE
5
9
ESK
www.krohne.com 09/2008 • 4000333901 MA ESK-Ex- II2G-AD-R01 en
SERVICE
Repairs relevant to safety in relation to explosion protection may only be carried out by the
manufacturer, his authorized agent, or under the supervision of qualified experts.
5.1 Maintenance
The electronic signal outputs are maintenance-free under normal operating conditions and
when used as intended.
Within the scope of checks required to be carried out in hazardous areas to maintain systems in
proper working order, the following visual inspections should be carried out at regular intervals:
• Inspect the housing, the terminals and the incoming lines for signs of corrosion and
damage.
5.2 Dismantling
Due to the intrinsically safe supply of the electronic signal output ESK ..., replacement
during operation is possible, but should preferably be carried out in off-load condition.
If this is not possible, the boundary conditions for intrinsic safety (e.g. no grounding or
interconnection of different intrinsically safe circuits) must be observed during dismantling.
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