Alarm Threshold Levels; Learning Function / Learning Conditions; Learning Conditions - Panasonic MEW01 351 Planning Manual

Panasonic Electric Works Nordic AB
MEW01351 Rev: -
18.3
18.4
18.4.1
Planning Instructions Fire alarm system EBL512 G3, V1.1.x
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).

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).

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.

Learning conditions

Each detector starts in the Normal condition.
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.).
123
There are four