20
107063-11 EN FR26 GLO 800 Printed in France
Figure 2-4 Mounting Dimensions - Quick-connect Style (for reference only)
Optical Alignment
To ensure optimum operation, the proper optical alignment of the FF-SPS4 Series perimeter
guarding devices is essential. The emitter and receiver devices must be mounted in parallel,
at the same height, and with an angular displacement of no more than +2
o
(see figure 2-5).
Figure 2-5 Emitter and Receiver Optical Alignment
Side by Side or Multiple System Installation
To prevent mutual interference or cross talk, pointing emitters in opposite directions
may be
necessary in side-by-side or multiple system installations to ensure proper operation.
If two or more FF-SPS4 safety perimeter systems are installed, optical interference may occur
if a receiver receives signals from two emitter devices. This condition may occur due to the
±
2° effective aperture angle of the emitter/receiver and the nominal scanning range (up to
75 m [246 ft]). To provide side protection, point the emitters in opposite directions (see figure
2-6).
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