Omron F3S-B Series Datasheet page 15

Precautions
1. Do not use the F3S-B on machines that can not be stopped by electrical control in case of an emergency.
2. Do not use the F3S-B in flammable or explosive environments
3. Always maintain the safety distance between F3S-B and a hazardous part of the machine. Serious injury may result if the ma-
chine does not stop before someone reaches the hazardous part.
4. Install protective structures around a machine so that you must pass through the detection zone to reach a hazardous part of
the machine.
5. Install F3S-B so that some parts of the operator's body remain in the detection zone at all times when the operator works in the
hazardous area.
6. Failure to do so may result in serious injury.
Correct installation
A hazardous part of a machine can be
reached only by passing through the sen-
sor detection zone.
Some part of the operator's body remains
in the detection zone while they are work-
ing.
1. Be sure to install the F3S-B to minimize the effects of reflections from reflective surfaces. Failures to do so will create an inability
to detect and may result in serious injury
2. Install the F3S-B with a minimum distance D as shown below form the reflective surface (highly reflective surfaces) like metal
walls, floors, ceilings, and work pieces.
<Side View>
Reflecting ceiling
Emitter
Detection zone
Reflecting floor
Distance between emitter and receiver (detection distance L)
0.3 to 3 m
3 to 5 m
F3S-B
D
Receiver
L
D
WARNING
!
Incorrect installation
! WARNING
Emitter
Minimum installation distance D
0.26 m
L x tan 5° = L x 0.088 (m)
A hazardous part of the machine can be
reached without passing through the sen-
sor detected zone.
A worker is between the sensor detection
zone and a hazardous part of a machine.
<Top View>
Reflecting surface
D
5˚
5˚
Receiver
L
G-45