7
Center of the
Upper Beam
Center of the
Lower Beam
Knockout
77
83
177
93
36
24
147
Mount bracket
Mount plate
117
ø42.7
✽
88
39
30
66.7
83.5
Transmitter
Receiver
1.
Alarm Operation
To check the alarm operation, actually walk along as-
sumed intrusion path near the transmitter and receiver,
respectively and in-between as shown in the figure be-
low.
Check that the alarm LED lights up and the controller
receives the alarm signal when the beam is interrupted.
2.
Tamper Operation
Check that the controller receives an abnormal signal
when either of the transmitter and receiver cover is open.
11
TROUBLESHOOTING
Problem
False alarm is output fre-
quently.
No alarm is output even when
beam is interrupted.
Possible cause
An obstacle exists between transmitter and receiver.
Optical axis alignment is incomplete.
Installation condition is unstable.
Distance between transmitter and receiver exceeds
rated distance.
Beam is interfered with beam from another detector.
There is an electrical noise source in nearby area.
Sunlight enters receiver within
±
3
°
angle.
There is a highly reflective wall in parallel with beam.
Reflectance of floor surface is high.
Beam is interfered with beam from another detector.
Height of installation position is inappropriate.
Solution
Remove obstacle.
Perform optical axis alignment again to obtain 3V or
more tester level.
Stabilize installation condition.
Change installation position or use other detector with
suitable rated distance.
Take proper measure to avoid beam interference.
Change installation position.
Replace transmitter and receiver.
Adjust optical axis so that it is on the other side of
reflection surface.
Adjust optical axis so that it is on the other side of
reflection surface.
Take proper measure to avoid beam interference.
Change installation position to a proper height.
<Note>
If the trouble remains unsolved even after taking above solution, please consult the dealer of your purchase.
12
DIMENSIONS
✽
This unit can be installed
to a pole with ø38.0 to
ø42.7 diameter.
10
OPERATION CHECK
