"
A sensor having a code 3 is automatically disabled by the system to prevent false alarms.
4188-949 issue 3_05/10_Nano Comms inst. 53
Nano panel based system
How to view Sensor 'Condition Codes'
Condition codes
positions
0123456789
Meaning Action
1000000000or
0100000000or
1100000000
This is the sub-fire band and if set should be
taken as showing that the sensor is at its
optimum sensitivity for its location.
No action need be taken.
2000000000or
0200000000or
2200000000
A sub-fire has been generated which would
suggest that the sensor was either too sensitive
for its environment or that the sensor type may
be incorrect for the location.
Action should be to check location and alter sensor
state or type as required. This should only be done
with the knowledge of the customer. Remember to
backup all changes to states data.
0000100000or
0000200000or
0000010000or
0000020000
This shows that the sensor time averages are
close to acceptable limits.
On commissioning the sensor should be replaced. A
sensor with code 2 is worse than code 1. On
maintenance sensors with code 2 should be
replaced.
0000001000or
0000002000or
0000000100or
0000000200
This shows that high frequency noise events
have been detected by the system. A code 1
shows one event and a code 2 shows more than
one event.
The device should be replaced. On maintenance, a
sensor with code 2 should be replaced. If it reoccurs
then check the environment.
0000000010or
0000000020
This shows device hardware faults. A '1' for
code 1 and more than one for a code 2.
The sensor should be replaced.
0000000001or
0000000002
This shows that transmission faults are being
noted. Code 2 is worse than code 1.
The device should be replaced. If it reoccurs then
check the environment.
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