4.45" (113 mm)
4.45" (113 mm)
7.24" (184 mm)
3
PROTECTION DISTANCE AND
RANGE OF LIGHT BEAM COVERAGE
3-1
MOUNTING HEIGHT
3-2
As the infrared light leaves the transmitter, it expands into conic shape light beams.
The optical axis is in the center of the light beams. Arrange the reflector so
that the device on the opposite side is in the center of the light beams.
As these sensors are designed to detect humans, install so that the center of the sensors are at a height of
approximately 2.6ft (0.8 m) from the ground when installing both on a wall and on a pole.
BEFORE INSTALLATION
In order to use these sensors correctly, thoroughly read this instruction manual and select the
mounting position and protection distance.
If the optical axis (center of the light beams) is aligned
correctly, a detection line with suf fi cient margin of
sensitivity is formed.
If the optical axis is not aligned correctly, there will
be insuf fi cient margin of sensitivity even if the
receiver is at the center of the light beams, making
the system more susceptible to adverse effects of the
environment resulting in a malfunction.
Approx. 2.6' (0.8 m)
330ft (100 m)
Approx. 8ft (2.4 m)
Installing so that the center of the sensor is
approximately 2.6ft (0.8 m) from the ground means that
the protection line is at waist height for humans,
enabling reliable detection.
If the installation position is too high or too low, the
protection line will be above shoulder height or below
knee height, making it more dif fi cult for reliable
detection.
WRONG
CORRECT
WRONG
CORRECT
WRONG
WRONG
CORRECT
t*OTUBMMBUJPOPOVOFWFO
ground
t4MBOUFEJOTUBMMBUJPO
t0WFSIFBEXJSJOH
t)PSJ[POUBMJOTUBMMBUJPO
t*OTUBMMBUJPODMPTFUPBXBMM
t*OTUBMMBUJPOJOMPDBUJPOTXIFSF
the device may be splashed by
dirty water or direct sea spray
t*OTUBMMBUJPOEJSFDUMZ
above a wall
t*OTUBMMBUJPOJOBOVOTUBCMF
wobbling location
1. In areas where there are trees or weeds, the photoelectric beams may get obstructed by overgrown branches or leaves.
As this may cause erroneous detection, be sure to trim down leaves and branches according to the growth of the plants.
Furthermore, the photoelectric beams may get obstructed by swaying branches or leaves due to wind. Keep in mind the swaying of leaves
and branches when trimming them.
2. Bine plants may wrap around the photoelectric beam sensors causing erroneous detections. Therefore, be sure to prune such plants
regularly.
3. Insects, bird droppings, or other natural phenomena may also soil the sensors causing erroneous detection. Be sure to clean the sensors
regularly.
Cautions when using the outdoor photoelectric beam sensor (Daily maintenance)
④
