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7.3 Servicing
ENSURE PLANT SAFETY BEFORE
STARTING MAINTENANCE
To simplify servicing all BA554D rate totaliser
use a common display assembly which may be
replaced on site. Depending upon the
accessories fitted, one spare display assembly
may be used to repair any BA554D rate totaliser
which fails.
To replace the display assembly remove the
terminal cover by unscrewing the two 'A' screws
which will reveal two concealed 'D' screws.
Unscrew all four 'D' screws and carefully lift off
the front of the instrument as shown in Fig 4.
The instrument assembly is secured by four
Pozi headed screws which should be removed.
If the instrument is fitted with a backlight or
alarms the fly-leads connecting the accessory
boards to the terminals should be un-plugged.
The replacement display assembly may then be
installed and the enclosure reassembled.
If after replacement of the display assembly the
instrument still does not function, it is likely that
the fault is within the protection components on
the terminal assembly. Terminal assemblies
may be exchanged on-site providing the
replacement includes terminals for any
accessories fitted to the display assembly i.e.
terminals for backlight and alarms.
We recommend that faulty instruments and
instrument assemblies are returned to BEKA
associates or to our local agent for repair.
7.4 Routine maintenance
The mechanical condition of the instrument and
electrical calibration should be regularly
checked. The interval between inspections
depends upon environmental conditions. We
recommend that initially instrument calibration
should be checked annually.
7.5 Guarantee
Indicators which fail within the guarantee period
should be returned to BEKA associates or our
local agent. It is helpful if a brief description of
the fault symptoms is provided.
7.6 Customer comments
BEKA associates is always pleased to receive
comments from customers about our products
and services. All communications are
acknowledged and whenever possible,
suggestions are implemented.
