F3S-B
10
1-5 Detection zone
Protective height
The F3S-B can detect in the area indicated by “Protective height” in the figure below. The protective height
is from “the Optical-axis line mark above the indicator area” to “the end of the yellow metal case”.
Optical-axis line mark
The center line for optical axes is indicated by the triangle mark. This position is a reference line for meas-
uring safety distance.
Emi
tte
r
Rece
iv
er
Optical-axis
pitch
1
n-1
n
2
Optical resolution
No. of optical axes
Protective
height
Limit position
for detection
Detection distance
Optical-axis
line mark
1-6 Configuration variation
1-6-1 Stand-alone type
This is the most common configuration, and it is used to protect a hazardous part of a machine when ap-
proached from one direction only.
Receiver
Emitter
Indicator area
Extension cable
Protective height
