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4. INSTALLATION
4.1 Location
The BA644DF-P PROFIBUS PA indicator is
housed in a robust IP66 glass reinforced polyester
(GRP) enclosure incorporating an armoured glass
window and stainless steel fittings. It is suitable for
exterior mounting in most industrial environments,
including offshore and wastewater treatment
installations. Please consult BEKA associates if
high vibration is anticipated.
The BA644DF-P enclosure is surface mounting.
Accessory kits described in sections 7.3 of this
manual enable the instrument to be mounted onto
a vertical or horizontal pipe.
The field terminals and the two mounting holes are
located in a separate compartment with a sealed
cover allowing the instrument to be installed
without exposing the display assembly.
The BA644DF-P earth terminal is connected to the
carbon loaded GRP enclosure. If this enclosure is
not bolted to a post or structure connected to the
plant potential equalising network, the instrument's
earth terminal should be connected to the
potential equalising network.
The BA644DF-P enclosure is supplied with a
bonding plate to ensure electrical continuity
between the three conduit / cable entries.
4.2 Installation Procedure
Fig
2
illustrates
the
procedure.
a. Remove the instrument terminal cover by
unscrewing the two captive 'A' screws.
b. Mount the instrument on a flat surface and
secure with two M6 screws through the 'B'
holes. Alternatively use one of the mounting
kits described in section 7.3
c. Remove the temporary hole plug and install a
cable gland or conduit entry with required
ingress protection. If more than one entry is
required, replace one or both IP66 stopping
plugs with a cable gland or conduit entry
having the required ingress protection.
d. Connect the field wiring to the terminals as
shown in Fig 3.
e. Replace the instrument terminal cover and
evenly tighten the two 'A' screws.
instrument
installation
4
Fig 2 BA644DF-P installation procedure
4.3 EMC
The BA644DF-P complies with the requirements of
the European EMC Directive 2004/108/EC.
specified immunity, all wiring should be in
screened twisted pairs with the screens earthed at
one point in the safe area.
For
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