Panasonic Eco Solutions Nordic AB
MEW01622
Rev: -
EBL128 Planning Instructions V2.0.x
99
The algorithm is as follows:
For a rate-of-rise < 4° C per minute:
Fire alarm level is 56° C.
Pre-warning level is 46° C.
Heavy heat alarm level is 90° C.
Rate-of-rise > 4° C per minute:
Fire alarm level is 46° C.
Pre-warning level is 36° C.
Heavy heat alarm level is 90° C.
The "Class A1 algorithm" will detect a fast temperature rise (rate-of-
rise > 4° C per minute) some minutes earlier than the "Class A2
algorithm".
13.5.2
Class A2 S algorithm
Conforms to Class
A2
S.
Typical / max. application temperature 25 / 50° C.
Max. / min. static response temperature 54 / 70° C.
The algorithm is as follows:
Fire alarm level is 60° C).
Pre-warning level is 50° C.
Heavy heat alarm level is 90° C.
13.5.3
Class B S algorithm
Conforms to Class
B
S.
Typical / max. application temperature 40 / 50° C.
Max. / min. static response temperature 69 / 85° C.
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" can be used when the application
temperature is "high" (compare with the "Class A1 an A2 S
algorithms).
13.6
Self verification
The analog detectors 430x / 440x
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
←