118
Chapter
4
Ins
ta
llat
io
n
Co
nditions
F3SJ-A
User’s Manual
Wiring/Installation
Distance from Reflective Surfaces
Install the sensor system so that it is not affected by reflective surfaces. Failure to do so may hinder
detection, resulting in serious injury.
Install the sensor system at distance D or further from highly reflective surfaces such as metallic walls,
floors, ceilings, or workpieces, as shown below.
Distance between an emitter and a
receiver (operating range L)
Allowable installation distance
D
For 0.2 to 3m
0.13m
For 3m or more
L/2 x tan5 ° = L x 0.044 (m)
L
D
D
L
D
5
5
Detection zone
Emitter
Receiver
Reflective ceiling
Reflective floor
Emitter
Receiver
Reflective surface
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