Putting Into Operation; Maintenance / Servicing; Repairs / Overhaul; Modification - Eaton CROUSE-HINDS Série Mode D'emploi

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
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
GHG 411 82
Apparatus mounting plate for
pipe mounting
16
Explosion-protected control units
GHG 411 and 412
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.
a
The improper operation of control units
may result in the invalidation of the
guarantee.
7

Maintenance / Servicing

a 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.
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
control unit
the explosion protection depend, (e.g.
GHG 411 83
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.
8

Repairs / Overhaul /

Modification

Only original CEAG parts shall be used for
carrying out repairs.
a 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.
a
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 (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 or acc. to the instruc-
tions given by the manufacturer.
When replacing individual built-in components
(pushbuttons, etc.) section 6.2 "Opening
apparatus / Electrical connection" shall be
observed.
9

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.
E