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A learning function will adapt after a learning period an Alarm algorithm suitable for the
smoke and temperature conditions in the area where the detector is located.
Alarm algorithms for the following areas can be adapted:
Pulse up – down counter
19.1
The detector have a "pulse up – down counter", starting at "0" and cannot be negative.
Pulse up – down counter for smoke
19.1.1
When the smoke obscuration S (%/m) > the alarm threshold level, "1" is added to the
counter every second.
When S < the alarm threshold level, "2" is subtracted from the counter every second.
Pulse up – down counter for temperature
19.1.2
When the temperature T (°C) > the alarm threshold level, "3" is added to the counter every
second)
When the temperature rise deltaT (°C/168sec.) > the alarm threshold level, "3" is added to
the counter every second.
When T or deltaT < the alarm threshold level, "2" is subtracted from the counter every
second.
Technical/Programming Manual
132
FT1020G3 Rev 2.2.1
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