Yamatake Corporation
Safety
Model HGC303 - Heat Value Gas Chromatograph
iii
(1) Installation for ISSeP/ATEX Flameproof Apparatus
1. General
1.1
The apparatus protected by the flameproof enclosure
in accordance with EN
50018 can be installed in such hazardous areas, for which the apparatus has been
certified, as an explosive atmosphere containing flammable substances in the form
of
gas
,
vapour
,
mist
or
dust
may be present.
~Note
The apparatus has been certified to comply with EN 50281-1-1 (dust
ignition protection).
1.2
The apparatus enclosure must be kept closed in the hazardous areas when the
apparatus is energized
because the internal circuit of the apparatus is capable of
igniting the explosive atmosphere. (Never connect any hand-held communicator to
the apparatus terminals by opening the cover, except while no explosive
atmosphere is present.)
1.3 It is required to connect
the external earthing terminal of the apparatus to the
equipotential bonding system
which includes protective conductors, metal
conduits, metal cable sheaths, steel wire armouring and metallic parts of structures,
but does not include the neutral conductors of the power systems.
~Note
The protective conductor to which exposed conductive parts of equipment
(machines, apparatus, devices, components and instrumentation thereof)
are connected, must be separated in the hazardous area from the neutral
conductor, and must be connected to the power systems earth point in the
non-hazardous area, if the power system is directly earthed.
For external earthing and bonding of the apparatus it is recommended to use a
cable lug so that the conductor is secured against loosening and twisting and that
the contact pressure is permanently secured.
1.4 Either
cable systems
(cable entry systems) or
conduit systems
can be employed
for wiring of the apparatus in the hazardous areas (see 2 or 3).
1.5
Non-sheathed single core cables are not permitted for live conductors
unless
they are installed inside enclosures or conduit systems.
1.6
Conduits
and,
in special cases
,
cables
(for example, where there is a pressure
difference)
must be sealed
so as to prevent the passage of the explosive
atmosphere.
1.7
Further information concerning installation and maintenance of apparatus
is
given by relevant clauses of the following documents.
EN 60079-14 Electrical apparatus for explosive gas atmospheres
Part 14:
Electrical installations in hazardous areas other than mines
EN 60079-17
Part 17:
Inspection and maintenance of electrical installations in
hazardous areas.
EN 50281-1-2 Electrical apparatus for use in the presence of combustible dust
Part 1-2: Electrical apparatus protected by enclosures
-- Selection, installation and maintenance
Содержание HGC303
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Страница 109: ...Yamatake Corporation Operation Model HGC303 Heat Value Gas Chromatograph 3 67 Figure 3 28 User report GPA mode ...
Страница 110: ...Operation Yamatake Corporation 3 68 Model HGC303 Heat Value Gas Chromatograph ...
Страница 112: ...Maintenance Yamatake Corporation 4 2 Model HGC303 Heat Value Gas Chromatograph ...
Страница 127: ...Yamatake Corporation Appendix Model HGC303 Heat Value Gas Chromatograph A 13 Drawings HGC00 ...
Страница 128: ...Appendix Yamatake Corporation A 14 Model HGC303 Heat Value Gas Chromatograph ...