Self Verification; Minimum / Maximum Sensor Values; Two-Unit Dependence (Co-Incidence Alarm) - Panasonic EBL128 Planning Instructions

Panasonic Electric Works Nordic AB
MEW01090 Rev: 3
13.3
13.4
13.5
The algorithm is as follows:
Fire alarm level is 74° C.
Pre-warning level is 64° C.
Heavy heat alarm level is 90° C.
The class B S algorithm shall be used when the typical application
temperature is "high" compared with the class A1 and A2 algorithms.

Self verification

The analog detectors in NORMAL mode have a built-in self
verification function. The detector's H/W is always supervised by the
detector's S/W and CPU. Every minute, each detector will receive a
question from EBL128. If the self verification function has detected
any fault it will be reported back to EBL128. A fault will be activated
in EBL128 and the following fault message will be shown:
FAULT: Detector xx-xx
FAULT: Detector techn. address nnn

Minimum / Maximum sensor values

To find out how the environment is, where an analog detector in
NORMAL mode is mounted, the minimum and maximum sensor
values can be studied. The sensor values are continuously picked up
and evaluated by EBL128 for each detector individually. Every value
is checked if it is a new minimum or maximum value for that detector
and if so, the value will be stored. At midnight every day a memory
will be updated and the new minimum and maximum sensor values
can be read in menu H4/U3 or via Win128.
For analog smoke detectors the minimum and maximum sensor values
are shown as XX.X % (obscuration) per meter.
For analog heat detectors the values are shown as XX°C.

Two-unit dependence (co-incidence alarm)

In some premises two-unit-dependent fire alarm (co-incidence alarm)
can be used to avoid unwanted false alarms (nuisance alarms).
Each analog or addressable detector (alarm point) and addressable
multi purpose I/O unit (3361) monitored input (Z)
programmed for two-unit-dependent fire alarm activation.
detectors should not and manual call points must not be 2-unit
dependent).
94
I.e. the min. / max. sensor values are from the previous day.
95
In this case only one alarm point is recommended on the zone line.
EBL128 Planning Instructions V1.1.x
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can be
(Heat