BEKA BA567E, Manual

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7. MAINTENANCE
7.1 Fault finding during commissioning
If a BA567E Counter fails to function during
commissioning the following procedure should be
followed:
Symptom Cause Check:
No display No power supply,
or incorrect
wiring.
Note: Terminals 2,
6 & RS2 are
interconnected
within the
instrument.
That there is
between 10 and
30V on terminals
1 & 2 with
terminal 1
positive.
Counter is
receiving power
but pulse input
indicator not
rotating.
No input pulses,
incorrect input
configuration,
incorrect linking of
terminals 3 & 4.
Input
configuration.
Linking of
terminals 3 & 4.
That input signal
polarity is correct.
Pulse input
indicator rotating
but incorrect rate
display.
Incorrect rate
display calibration
5CALE.r
t-bA5E
Pulse indicator
indicator rotating
but incorrect total
display.
Incorrect total
display
calibration.
Remote reset
switch contacts
closed.
5CALE.t
That
RE5ET
annunciator is not
activated. If it is,
check reset wiring
and switch.
Unstable rate
display
Noisy pulse input
signal
Eliminate source
of electrical noise.
Increase
debounce and/or
display filter.
Unable to enter
configuration
menu.
Incorrect security
code
That the correct
security code is
being used.
Contact BEKA if
code is lost.
Optional 4/20mA
or pulse output
does not function
Output has been
disabled following
configuration
change
Re-enable output
Optional alarms
do not function
Alarms have been
disabled following
configuration
change.
Re-enable both
alarms.
7.2 Fault finding after commissioning
ENSURE PLANT SAFETY BEFORE
STARTING MAINTENANCE
If a BA567E Counter fails after it has been
functioning correctly, the following table may help to
identify the cause of the failure.
Symptom Cause Check:
No display No power supply. That there is
between 10 and
30V on terminals
1 & 2 with
terminal 1 positive
Pulse input
indicator not
rotating.
No input pulses Output from
sensor.
Wiring between
sensor and
BA567E Counter
Unstable rate
display
Noisy pulse input
signal
Locate source of
electrical noise, or
increase
debounce and
rate display filter.
If this procedure does not reveal the cause of the
fault, it is recommended that the instrument is
replaced.
7.3 Servicing
We recommend that faulty BA567E Counters are
returned to BEKA associates or to our local agent for
repair.
7.4 Routine maintenance
The mechanical and electrical condition of the
instrument should be regularly checked. Inspection
frequency should be adjusted to suit the
environmental conditions.
7.5 Guarantee
Instruments 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.
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