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7
Maintenance / Servicing
The valid national regulations for the servicing / maintenance of
electrical apparatus for use in potentially explosive atmospheres
shall be observed (e.g. IEC/EN 60079-17).
Prior to opening the enclosure, it is necessary to ensure that the
voltage supply has been isolated or to take suitable protective
measures.
X
To avoid a build-up of electrostatic charge, only use a damp
ATEX - IEC
cloth or sponge to clean then switch GHG 252.
In case of intrinsically safe circuits, working is permitted while voltage
applies.
Switches with auxiliary contacts in the gold-tipped auxiliary contact
edition should be activated occasionally depending on service conditions.
During servicing, special attention shall be given to checking the parts on
which the explosion protection depends (e.g. intactness of the flame-
proof components, the enclosure, the seals and cable entries).
If during servicing, repairs prove to be necessary, section 8 of these
operating instructions will have to be observed.
The required maintenance intervals depend on the specific application
and will, therefore, have to be determined by the user dependent on the
conditions of use.
8
Repairs / Overhaul / Modifications
Only original Cooper Crouse-Hinds parts shall be used for carrying out
repairs.
In the event of damage to the flameproof encapsulation,
replacement of these compo nents is mandatory. In case of doubt,
the respective apparatus shall be sent to COOPER CROUSE-HINDS
GmbH for repair.
Repairs that affect the explosion protection may only be carried out
by COOPER CROUSE-HINDS GmbH or by a qualified electrician in
compliance with the respective national regulations
(e.g. IEC/EN 60079-19).
Apparatus modifications or design changes are not permitted; excepted
from this is the fitting of additional cable entries within the scope of the
apparatus approvals.
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Explosion-protected switch
GHG 252
9
When the apparatus is disposed of, the respective national regulations on
waste disposal will have to be observed.
In case of disposal you can obtain additional information from your
EATON / Cooper Crouse-Hinds branch.
In order to facilitate the recycling of individual components, plastic parts
are provided with the identification mark of the plastic material used.
Subject to modifications or supplement of the product range.
Disposal / Recycling
GB
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