BEKA BA384E, Manual

Page: 42 / 68

42
Pressing
)
will then reset the
composite grand total to zero and return
the instrument to the
CLr . Gtot
prompt in
the configuration menu.
See 6.23
Step 17 Define the security code
Defining a security code prevents
unauthorised access to the configuration
menu. Using the
&
or
*
buttons
select
CodE
from the configuration menu
and press
(
which will reveal
0000
with
the first digit flashing. This example
requires the security code to be 1209.
Using the
&
or
*
buttons set the
flashing digit to
1
and press
(
to
transfer control to the second digit.
When all have been entered press
)
to
return to the configuration menu.
See 6.24
Step 18 Return to the totalising mode
Configuration of the BA384G is now
complete. Pressing the
)
button will
save the new configuration and return
the Rate Totaliser to the totalising mode.
The BA384G will display
dAtA
followed
by
5AVE
while the new information is
stored in permanent memory, which will
be protected from unauthorised
adjustment by the security code.
In the totalising mode, operating the
&
or
*
button will scroll the BA384G
display between Input-A, Input-b and the
composite display Input-A + Input-b.
10. MAINTENANCE
10.1 Fault finding during commissioning
If a BA384G 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, 10 & RS2 are
interconnected
within the
instrument.
That there is
between 10 and
28V on terminals
1 & 2 with
terminal 1
positive.
Rate Totaliser is
receiving power
but flow indicator
is not rotating
when either input
is selected.
No input pulses,
or incorrect input
configuration
Input
configuration.
Correct linking of
terminals 3 & 4
for input A and
terminals 7 & 8
for input b.
Input pulses have
correct polarity.
Flow indicator
rotating, but
incorrect rate
display on one or
both inputs.
Incorrect rate
display
calibration.
Factor-A
factor-b
5cale . r-A
5cale . r-b
t-ba5e
Flow indicator
rotating, but
incorrect total
display.
Incorrect total
display
calibration.
Remote reset
switch contacts
are closed.
Factor-a
factor-b
5cale . t-A
5cale . t-b
If reset
annunciator is
activated, check
reset wiring and
switch.
Unstable rate
display.
Noisy pulse input
signal.
Eliminate
electrical noise.
Increase input de-
bounce and/or
display filter.
Alarms do not
function.
Alarms have
been
automatically
disabled following
rate display
recalibration.
Enable both
alarm outputs.
Unable to enter
configuration
menu.
Incorrect security
code
That the correct
security code is
being used.
Contact BEKA if
code is lost.