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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
v
iew
S
ensor
'Condition
Codes'
Condition codes
positions
0 1 2 3 4 5 6 7 8 9
Meaning
Action
1 0 0 0 0 0 0 0 0 0 or
0 1 0 0 0 0 0 0 0 0 or
1 1 0 0 0 0 0 0 0 0
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.
2 0 0 0 0 0 0 0 0 0 or
0 2 0 0 0 0 0 0 0 0 or
2 2 0 0 0 0 0 0 0 0
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.
0 0 0 0 1 0 0 0 0 0 or
0 0 0 0 2 0 0 0 0 0 or
0 0 0 0 0 1 0 0 0 0 or
0 0 0 0 0 2 0 0 0 0
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.
0 0 0 0 0 0 1 0 0 0 or
0 0 0 0 0 0 2 0 0 0 or
0 0 0 0 0 0 0 1 0 0 or
0 0 0 0 0 0 0 2 0 0
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.
0 0 0 0 0 0 0 0 1 0 or
0 0 0 0 0 0 0 0 2 0
This shows device hardware faults. A '1' for
code 1 and more than one for a code 2.
The sensor should be replaced.
0 0 0 0 0 0 0 0 0 1
or
0 0 0 0 0 0 0 0 0 2
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.
