Pulse Up - Down Counter; Pulse Up - Down Counter For Smoke; Pulse Up - Down Counter For Temperature; Fire Judgement - Panasonic EBL128 Planning Instructions

Panasonic Electric Works Nordic AB
MEW01090 Rev: 3
15.1
15.1.1
15.1.2
15.1.3
15.2
Learning function / conditions. The detector will adapt a
learning condition depending on the long-time influence of
smoke and/or the temperature, where the detector is located.
Pulse up – down counter
The detector have a "pulse up – down counter", starting at "0" and
can not be negative.
Pulse up – down counter for smoke
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
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).
Pulse up – down counter for smoke & temperature
When 2S+deltaT > the alarm threshold level, "1" is added to the
counter (every second).
When 2S+deltaT < the alarm threshold level, "2" is subtracted from
the counter (every second).

Fire judgement

The fire judgement is depending on the different functions for the
different detector types and if the cause of alarm is smoke S,
temperature T or deltaT or a combination of smoke and temperature
2S+deltaT.
When the counter shows "9" (i.e. at the earliest after nine seconds in
case of S or 2S+deltaT and after three seconds in case of T or deltaT)
the following will happen:
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EBL128 Planning Instructions V1.1.x