Troubleshooting
Problem
Possible cause
Corrective action
LEDs are not
Illuminated (transmitter or
receiver)
Reversed battery polarity
Check battery polarity
Low battery indicator
blinks even though
the battery has
been inserted
(transmitter or receiver)
Low battery power
Replace batteries
Alarm does not output
Reflection from the floor or
wall.
Align beams away from the
floor or wall.
Beam has not been blocked.
Block all four beams.
Alarm outputs consistently
Channels of transmitter
and receiver are different.
Set the same channel to
both transmitter and receiver
Multiple photoelectric detector
for long distance
or beam stacking applications.
Set channels 1-3 or 2-4 or
1-4.
Optical alignment was not
performed properly.
See
Optical alignment
.
Batteries are losing their
charge too quickly
Tamper is not closed
Attach the cover of the tamper
lock plate properly.
Frost, snow or
heavy rain causes
false alarm.
Optical alignment not
optimized.
See
Optical alignment.
DQ output not enabled
See
Optional: D.Q. output.
Wall tamper does
not activate.
Screws between the
chassis and the back-box
are loose.
Tighten screws.
The waterproof packing on
back-box is not attached.
Remove chassis from the
back-box and attach the
waterproof packing to
the chassis correctly.
Replacing the batteries
When replacing batteries, remove all
batteries before inserting new ones. This ensures that the low battery indicator
LED resets.
