Time averages explained
The time averages provide sensor performance data with the display showing the latest time average value, foreground (fast) time average values T1 to T5 and background (slow) time average values
T6 to T11. These values are used by the panel to make fire detection decision.
Foreground (fast) time average
readings
Background (slow) time average readings
T
Latest
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10
T11
On
demand
80mS 320mS 1.28S 5.12S 20.48S 1.36min
5.46min
21.84min 1.45hr 5.82hr
23.3hr
Normally reads 252, unless there is
activity on this channel.
Device type S-Quad
Analogue Channels
Typical
Time average
T
latest
(new)
Heat Sensor
2 - heat
66
Heat Sensor Sounder
2 - heat
66
Dual Optical Heat Sensor
1 - optical (forward)
2 - heat
4 - optical (backward)
25
66
40
Dual Optical Heat Sensor Strobe
1 - optical (forward)
2 - heat
4 - optical (backward)
25
66
40
Dual Optical Heat Sensor Sounder
1 - optical (forward)
2 - heat
4 - optical (backward)
25
66
40
Dual Optical Heat Sensor Speech Strobe
1 - optical (forward)
2 - heat
4 - optical (backward)
25
66
40
Dual Optical Heat Sensor CO
1 - optical (forward)
2 - heat
3 - CO
4 - optical (backward)
25
66
25
40
Dual Optical Heat Sensor CO Speech Strobe
1 - optical (forward)
2 - heat
3 - CO
4 - optical (backward)
25
66
25
40
4188-949 issue 3_05/10_Nano Comms inst.
51
Nano panel based system
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'Time
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