Use Of Deviating Mirrors - SAFEasy SF2 Series Instruction Manual

Instruction Manual

2.2.4. Use of deviating mirrors

The control of any dangerous area, with several but adjacent access
sides, is possible using the linear version without integrated Muting
sensors and well-positioned deviating mirrors.
Fig.11 shows a possible solution to control three different access
sides, using two mirrors placed at a 45° angle respect to the beams.
The operator must respect the following precautions when using the
deviating mirrors:
• The alignment of the emitter and the receiver can be a very critical
operation when deviating mirrors are used. Even a very small
angular displacement of the mirror is enough to loose alignment.
• The minimum safety distance (S) must be respected for each single
section of the beams.
• The effective operating range decreases by about 15% by using only
one deviating mirror, the percentage further decreases by using 2 or
more mirrors (for more details make reference to the technical
specifications of the used mirrors).
• Do not use more than three mirrors for each device.
• The eventual presence of dust or dirt on the reflecting surface of the
mirror causes a drastic reduction in the range.
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SF2 Series
Fig. 11