6
5. INSTALLATION
5.1 Location
The
BA444DF-F
FOUNDATION™
fieldbus
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 BA444DF-F enclosure is surface mounting.
Accessory kits described in sections 8.3 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 BA444DF-F 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 as recommenced in
EN 60079-14.
The BA444DF-F enclosure is supplied with a
bonding plate to ensure electrical continuity
between the three conduit / cable entries.
5.2 Installation Procedure
Fig 2 illustrates the instrument installation
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 8.3
c.
Remove the temporary dust seals from the
three cable entries and install the required
glands, conduit fittings or blanking plugs.
Note: The temporary dust seals fitted for
transit do not maintain the IP66 protection of
the BA444DF-F enclosure.
Cable glands, conduit fittings, blanking plugs
and cables must be suitable for continuous
use at the maximum operating temperature
of the instrument.
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.
Fig 2 BA444DF-F installation procedure
5.3 EMC
The BA444DF-F complies with the requirements of
the European EMC Directive 2004/108/EC. For
specified immunity, all wiring should be in
screened twisted pairs with the screens earthed at
one point in the safe area.
Fig 3 Dimensions and terminal connections
