5.
INSTALLATION
5.1
Location
The BA364G Counter is housed in robust IP66 glass
reinforced polyester (GRP) enclosure incorporating
an armoured glass window and stainless steel
fittings making it suitable for exterior mounting in
most industrial on-shore and off-shore installations.
The Counter should be positioned where the display
is not in continuous direct sunlight.
Special
conditions apply for Zone 0 installations, see section
3.3.
Field wiring terminals are located on the rear of the
Counter assembly as shown in Fig 7.
To ensure electrical continuity between the two
conduit or cable entries, the enclosure is fitted with a
bonding plate which includes an M4 earth stud.
This may be mounted on the inside or outside of the
enclosure. If the carbon loaded GRP enclosure is
not bolted to an earthed post or structure, this earth
stud should be connected to a local earth or the plant
potential equalising conductor.
An insulated M4 stud is provided in the bottom right
hand corner of the back-box for interconnecting
cable screens.
The BA364G Counter may be pipe mounted using a
BA393G pipe mounting kit, or panel mounted using a
BA394G or BA395G panel mounting kit.
5.2
Installation Procedure
Fig 6 illustrates the instrument installation procedure.
A. Remove the Counter assembly by unscrewing
the four captive 'A' screws.
B. Mount the enclosure back-box on a flat surface
and secure with screws or bolts through the
four 'B' holes. Alternatively use one of the pipe
or panel mounting kits which are available as
accessories.
C. Remove the temporary hole plug and install an
appropriate IP and temperature rated M20 x
1.5mm cable gland or conduit fitting.
If two
entries are required,
the supplied IP66
stopping plug should be replaced with an
appropriate IP and temperature rated M20 x
1.5mm cable gland or conduit fitting.
D. Connect the field wiring to the terminals as
shown in Fig 7. Replace the instrument
assembly on the back-box and evenly tighten
the four 'A' screws.
Fig 6 BA364G installation procedure
Fig 7 Dimensions and terminal connections
14
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