74
wallaceperimetersecurity.com
Phone: 866.300.1110
PHOTO EYE ALIGNMENT
Table 9. Verification of Photo Eye Alignment
Green transmitter LED ON.
Power present and transmitter is functional.
Green receiver LED ON.
Successful system alignment, power present and
receiver is functional.
Green receiver LED FLASHING.
Obstruction between photo eyes is present. (On
the receiver side, single-pole relay clicks.)
Green receiver LED FLASHING when
there is NO OBSTRUCTION present.
FAULT: Beam blocked or not aligned. The receiver
is not “seeing” the transmitter.
Recommended action(s):
1.
Clean the sensor (beam output and receiver)
with a soft, clean, dry cloth.
2.
Re-align transmitter and receiver.
3.
Check voltage and current with multimeter.
TEST:
1)
Place an obstruction (e.g., hand) in front of the receiver. Green receiver LED should be
ON and flashing, indicating obstruction detection.
2)
Remove obstruction from the receiver. Green receiver LED should be ON and not
flashing.
Optical crosstalk occurs when a photoelectric receiver responds to light from an adjacent
emitter. Crosstalk is occurring if the transmitter is solid green and the receiver appears
dead (LED not lit), except when an obstruction is detected, in which case the green
receiver LED commences flashing.
If re-alignment or repositioning of transmitter and receiver does not resolve crosstalk
and/or the interference is occurring at a site with more than one SpeedGate, decrease
the sensitivity setting on the receiver to the position where the green LED on the receiver
starts to flash. Then increase sensitivity setting one quarter turn.
Summary of Contents for SPEEDGATE
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