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Installing the motion sensor
• The recommended height is lower than 4000mm for motion sensor. When the installation height is higher,
motion detection accuracy might be reduced.
• Sensor will detect the object with a different temperature from the surrounding.
• Motion sensor is more sensitive to motions in the direction of
mark.
• Sensor may not detect small children or infants with little motion.
• Although motion sensor can be installed on a wall, it is recommended to install it on the ceiling plane.
• If the sensor is installed on the wall, the sensing distance in the front direction is about 5m, covering the
angle of about 100 degrees.
Height of the ceiling
h (m) 2.7 3.5 4.0
Detectable area
φ
A (m) 4.5 6.4 7.6
Detectable area
φ
B (m) 6.4 8.3 9.5
The detectable area
0.8
h
φA
φB
Ceiling plane
Floor face
Side of screws for fixing the case
Installing the motion sensor
There are the following 3 methods to install the motion sensor
on the ceiling plane or wall surface (hereinafter called “ceiling
plane”). Select the method according to the installation
position.
<How to install>
(A) Direct installation by screws to the ceiling plane with
the wiring in the ceiling space.
(B) Direct installation by screws to the ceiling plane with
the wiring in the room.
(C) Installation with switch box (prepare at the site)
20.5
4.5
φ
15
2.522.5
Positional relation for pulling out relay wiring
hole and installing holes.
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