Advertisement
Detector
PBA-1191
Vertical adjustment range of the optical system - max. 5° above and below the axis
Note: One rotation of the knurled screw moves the beam at 280 ft. approximately 3 ¾ ft.
Reflectors
Retroreflectors reflect the received light beam in parallel to the latter. For this reason the retroreflector
does not have to be installed parallel to the detector. Also vibrations and distortions of the reflector
mounting wall do not cause any problems. Another advantage is that any extraneous light is also
reflected in its own direction and consequently does not reach the receiver.
The reflector can be mounted inclined a maximum of ± 20
PBR-1191 prism
The retroreflecting prism has the shape of a pyramid whose lateral faces are formed by isosceles
orthogonal triangles. Light beams entering through the base are completely reflected twice on the
lateral faces and reflected back through the base.
The prism is installed in a housing that is identical to the one used for the detector base. The reflector
is equipped with a reflector heater. If condensation is possible, connect the heater to a 24V supply.
5°
5°
Figure 8
Reflector
Reflector
max. + 20°
Figure 9
PB-1191 Beam Detector Manual
Reflector
PBR-1191
22 ft.
22 ft.
280 ft.
max. + 20°
Reflector
O
in all directions
7
Advertisement
