5.3 Run Time Errors
89 Hardware Fault
The hardware fault message is displayed
if the channel card detects a fault in its
operation or a fault with a sensor input.
Check the sensor connections. Remove the
channel card and insert it into a compatible
working channel and check its operation
(ER86 may appear during this operation
- this is normal). If the card still indicates
a fault, it must be replaced. If the card is
working, the sensor should be replaced.
88 Under Range Fault
The under range fault message is displayed
when the sensor signal reading is less than
the predetermined level held within the
channel congurationdata.
Typically this is due to either the sensor or
the sensor cable installation being open
circuit.
87 Over Range Fault
The over range fault message will appear
when the sensor signal reading is above the
predetermined level held within the channel
congurationdata.
Typically, this is due to either the sensor
or the sensor cable installation being short
circuit. Alternatively, the sensor may be
detecting a very high level of gas.
The reset of a latched signal overrange fault
condition should only be carried out after
checking that the sensor is in clean (non
target gas) air.
86 Card In Wrong Slot
The card in wrong slot message is displayed
if a channel card has been moved to a
different slot from the one that it had been
calibrated for.
All Non Yes Yes
Active
All Non Yes Conf
Active
All Non Yes Conf.
Active
All Non Yes No.
Active
Error Error Code Meaning Software Card Fault Latch
Code Version Status Signal
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