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Installation on uneven
ground
Slanted installation
Cautions when using the outdoor photoelectric beam sensor (Daily maintenance)
1. In areas where there are trees or weeds, the infrared 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 infrared may get obstructed by swaying branches or leaves due to wind. Keep in mind the swaying of leaves and
branches when trimming them.
2. Vine type plants may wrap around the photoelectric beam sensors causing erroneous detections. Therefore, be sure to prune such plants
regularly.
3. Other natural phenomena such as insects or bird droppings may soil the sensors causing miss detection. Be sure to clean the sensors
regularly.
3
PRECAUTIONS
3-1
PROTECTION DISTANCE AND
RANGE OF LIGHT BEAM COVERAGE
If the optical axis (center of the light beams) is
aligned correctly, a detection line with sufficient
margin of sensitivity is formed.
CORRECT
A: Protection Distance
165ft ( 5 0 m )
330ft (100 m)
660ft (200 m)
3-2
MOUNTING HEIGHT
WRONG
CORRECT
WRONG
Installation in locations where the
unit may be splashed by dirty
water or direct sea spray
Overhead wiring
In order to use these sensors correctly, thoroughly read this instruction manual and select the mounting position and
protection distance.
4.45" (113mm)
7.24" (184mm)
4.45" (113mm)
A
B: Coverage of light beam
Approx. 4ft (1.2 m)
Approx. 8ft (2.4 m)
Approx. 16ft (5.0 m)
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.
Approx. 2.6'(0.8m)
Installation directly above
a wall
Installation close to a wall
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.
If the optical axis is not aligned correctly, there will
be insufficient 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
WRONG
environment resulting in a malfunction.
B
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
CORRECT
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
WRONG
detection.
Installation in an
unstable, wobbling location
Other than
PXB-HF-KH
PXB-HF-KH
Using PXB-HF-KH together with other
beam sensors or different protection
distance beam sensors in stacking
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