Panasonic Electric Works Nordic AB
MEW01351
Rev: -
Planning Instructions Fire alarm system EBL512 G3, V1.1.x
123
activated.
4301
: Fire judgement is depending on other alarm and filtering
algorithms (see chapter "Functions / Services / Features", page 89).
4300
: Fire judgement is depending on other alarm and filtering
algorithms (see chapter "Functions / Services / Features", page 89).
18.3
Alarm threshold levels
Depending on the detector type, mode and learning condition there are
alarm threshold levels (
S
,
T
,
deltaT
and
2S+deltaT
) for pre-warning,
fire alarm and heavy smoke / heat alarm.
The following fire alarm threshold levels are valid for the different
type of detectors:
4352
:
4350
:
#2
NOTE!
S > 2.5
(%/m) and
deltaT > 3
(°C/168 seconds).
4301
: Fire alarm threshold level is depending on other alarm and
filtering algorithms (see chapter "Functions / Services / Features",
page 89).
4300
: Fire alarm threshold level is depending on other alarm and
filtering algorithms (see chapter "Functions / Services / Features",
page 89).
18.4
Learning function / Learning conditions
Depending on the local temperature changes and the local occurrence
of smoke where the detector is situated, each detector can after a
learning period
, adapt a more appropriate alarm algorithm than the
normal one, a
learning condition
. See also page 122.
18.4.1
Learning conditions
Each detector starts in the Normal condition
. There are four
learning conditions
that can be adapted:
Steam / tobacco condition, depending on the occurrence of
smoke, i.e.
level 1
=
S
[%/m] > half the fire alarm threshold
level (S).
Heating condition, depending on rise of temperature, i.e.
level 2
=
deltaT
[°C/168 sec.] > 12 (approx. 4.3°C/min.).
