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5. INSTALLATION
5.1 Location
The BA358C is housed in a robust
aluminium enclosure with a polyester
membrane front panel surrounded by a
Noryl bezel. The front of the instrument
provides IP65 protection, and a gasket seals
the joint between the instrument enclosure
and the panel. The instrument may be
installed in any panel providing the
environmental limits shown in the
specification are not exceeded.
Fig 4 shows the overall dimensions of the
BA358C and the panel cut-out. To achieve
an IP65 seal between the instrument
enclosure and the panel the smaller cut-out
must be used and the instrument secured
with four panel mounting clips.
The BA358C liquid crystal display has
maximum contrast when viewed from
directly ahead and slightly below the centre
line of the instrument. For reflective displays
there is little degradation of contrast when
viewed from above the centre line, but slight
degradation may be noticeable when the
instrument is fitted with a backlight.
Fig 4 BA358C dimensions
5.2 Installation Procedure
a. Insert the BA358C into the instrument
panel cut-out from the front of the
panel.
b. Fix panel mounting clips to opposite
sides of the instrument and tighten
until the instrument is secure as
shown in Fig 5. Four clips are
required to achieve an IP65 seal
between the instrument enclosure and
the panel.
c. Connect the panel wiring to the rear
terminal block(s) as shown in Fig 5
To simplify installation, the terminals
are removable so that panel wiring
can be completed before the
instrument is installed.
Fig 5 Installation and terminal connections
5.3 EMC
The BA358C complies with the requirements
of the European EMC Directive 89/336/EEC.
For specified immunity all wiring should be in
screened twisted pairs, with the screens
earthed in the safe area.
