730110 K0
15
E S 0 9 11
Page
③
About Trouble indication
a．
DETECTOR
It lights up when sensitivity revision over or inside the detector, trouble occurs in the
detector. (Refer to “6.
Procedures/steps to be taken in the event of trouble occurrence”)
In addition, address of the detector where trouble occurs is indicated in 7seg LED.
b．
DET.O V E R
It lights up when the number of detectors which have been recognized is greater than
specification at the detector number switch of control unit
c．
DET.UNDER
It lights up when the number of detectors which have been recognized is less than specification
at the detector number switch of control unit.
Control unit, the numbers of detectors recognizing few, lights up similarly even when being
disconnected of the communication line and broken wire inside the detector.
d．
PCL.SHORT
When the communication line is short, it lights up.
e．
RECEIVER
It lights up when specification of detector number switches of control unit 0 or 32 or more.
In this case of control unit trouble, please exchange.
