Cooper Crouse-Hinds GmbH
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8
Repairs / Overhaul /
Modification
Modification
Modification
Modification
Modification
Only original CEAG parts shall be used for
carrying out repairs.
In the event of damage to the
flameproof encapsulation, replacement of
these components is mandatory. In case
of doubt, the respective apparatus shall
be sent to COOPER Crouse-Hinds for
repair.
Repairs that affect the explosion
protection may only be carried out by
COOPER Crouse-Hinds or by a qualified
electrician in compliance with the
respective national regulations.
(EN 60079-17, 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 or acc. to
the instructions given by the manufacturer.
When replacing individual built-in components
(pushbuttons, etc.) section 6.2 ”Opening
apparatus / Electrical connection” shall be
observed.
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Disposal / Recycling
The respective valid national regulations for
waste disposal shall be observed when
disposing of apparatus.
To facilitate the recycling of individual parts,
parts made of moulded plastic shall bear the
marking for the type of plastic used.
The product range is subject to changes and
additions.
6.5
Closing apparatus /
Cover closure
When fitting the enclosure cover onto
the base, it is necessary to ensure that the
actuator elements correspond correctly
with the built-in components, care shall be
taken to ensure that the switch shaft of the
switch insert engages correctly in the
carrier hole of the switch handle and that
the enclosure cover for the respective base
is being used.
The switch handle shall be in the position it
had when the apparatus was opened.
Any foreign matter shall be removed from the
apparatus.
To ensure the required minimum degree of
protection, the cover screws shall be
tightened down.
Overtightening may impair the degree
of protection.
Fastening holes of the apparatus mounting
plates size 1
Apparatus mounting plate for channel- and
wall mounting
Fastening
holes for
control unit
GHG 411 81
Apparatus mounting plate for pipe mounting
6.6
Putting into operation
Before putting the apparatus into operation,
the tests specified in the individual national
regulations shall be performed.
In addition to this, before being put into
operation, the correct functioning of the
apparatus and of the built-in components
(measuring instruments, signal lamps,
pushbuttons, etc.) shall be checked in
accordance with these operating instructions
and other applicable regulations.
The zero setting of the measuring instrument
needle shall be checked before putting it into
operation. If necessary, the measuring
instrument needle shall be set to zero using
the adjustment screw.
The gas group (IIB or IIC) of the intrinsically
safe circuit shall be taken into consideration
for the evaluation of the gas group of the built-
in components.
The improper operation of control
units may result in the invalidation of the
guarantee.
Prior to opening the enclosure, it is
necessary to ensure that the voltage supply
has been isolated or to take suitable
protective measures.
Working with live circuits is permissible for
intrinsically safe circuits.
The necessary intervals between servicing
depend upon the specific application and
shall be stipulated by the operator according
to the respective operating conditions.
During servicing, above all, the parts on which
the explosion protection depend, (e.g.
intactness of the flameproof components, the
enclosure, the seals and cable entries), and
the switch mechanism function of the control
switch shall be checked.
If, in the course of servicing, it is ascertained,
that repairs are necessary, section 8 of these
operating instructions shall be observed.
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. 60079-17)
Fastening holes of the apparatus mounting
plates size 2
Apparatus mounting plate for channel- and
wall mounting
Fastening holes for
Fastening holes for
control unit
control unit
GHG 411 82
GHG 411 83
Apparatus mounting plate for pipe mounting
Explosion-protected control units GHG 411 / 412