Panasonic Eco Solutions Nordic AB
MEW01622
Rev: -
EBL128 Planning Instructions V2.0.x
122
extended in order to reduce false (nuisance) alarms.
A
learning function
will after a
learning period
adapt 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:
There is also a
Heater
area
Alarm algorithm
.
This is similar to the alarm algorithm for the
Normal
area
but the rate-of-rise function (deltaT) will not be used for alarm activation.
15.1
Pulse up
– down counter
The detector have a "pulse up – down counter", starting at "0" and
cannot be negative.
15.1.1
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.
15.1.2
Pulse up
– down counter for temperature
When the temperature
T
(°C) > the alarm threshold level, "3" is added
to the counter every second)
Clean
area
(higher sensitivity)
Normal
area
(default)
Smoke-steam
area
(longer delay time)
Cooking-welding
area
(longer delay time &
lower sensitivity)