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APPENDIX B
Hardware Failure Numbers, Variable Error Numbers
Circuit Fault Numbers And Warning Numbers.
GENERAL
The metal detector carries out various test functions to
ensure that it is operating correctly. Some of these
tests are carried out during power-up and others are
done on a continuous basis.
Any test which fails is displayed on the LCD display as
an error number. The type of errors are categorised as:
Hardware Failure No’s.
Variable Error No’s.
Circuit Fault No’s.
Warning No’s.
HARDWARE FAILURE NO’S
During power-up the firmware runs basic tests on the
CPU Board hardware, any error is displayed as a
Hardware Failure Number.
Any of the above Hardware Failure numbers prevents
the metal detector from operating.
Action
Replace the Module or contact the supplier.
VARIABLE ERROR NO’S
During power-up ‘SELF TEST’ the firmware runs test
on all the user programmable variables, such as the
SENSitivity, PHASE and Timer settings.
Any corrupted variable is replaced with its default value
and the 21st to 25th segment of the bar graph display is
flashed to warn the user.
The metal detector is not prevented from operating.
The flashing segments of the bar graph are cleared by
powering down and back up again with no Variable
Errors.
Action
Check all your programmed settings and the operation
of the system and contact the supplier.
CIRCUIT FAULT NO’S
During power-up and normal running of the system the
firmware carries out various monitoring tasks to ensure
circuit functionality, any error is displayed as a Circuit
Fault Number.
Circuits Fault 1, 2 and 3 prevent the metal detector
from operating and forces a reject condition.
If a Reject Confirmation Unit (RCU) is fitted and
operating the ‘system fault relay’ contacts will be
activated.
Action
Replace the module or contact the supplier.
Circuit Fault 4 and 5 do not prevent system operation
but action must be taken.
Action
Contact the supplier.
Circuit Fault 6 does not prevent system operation.
Action
Repeat auto-setup and when the LCD message reads
“Ensure no product is passing through aperture” please
make sure that this instruction is followed. If the
problem still exists contact the supplier.
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