Use Of Deviating Mirrors - Pilz PSEN op2 Série Manuel D'utilisation

PSEN op 2/4 Series

2.2.4. Use of deviating mirrors

Deviating mirrors can be used to monitor danger zones where access
is possible from various sides.
Fig. 11 illustrates a potential solution for monitoring three different
access sides using two deviating mirrors positioned at an angle of 45°
to the light curtain.
Please note the following precautions to take when using deviating
mirrors:
•
The alignment of the transmitter and receiver is particularly critical
when you use deviating mirrors; just a slight angular displacement of
the mirror is enough to lose the alignment. This problem can be resolved
by using a laser pointer, which is available as an accessory.
•
The minimum safety distance (S) must be maintained for each
section of the light curtain.
•
Use of a deviating mirror reduces the effective operating range by
about 15%. If two or more deviating mirrors are used, the range will
be reduced still further (for more details please refer to the technical
specifications for the specific mirror).
•
Never use more than three mirrors per device.
•
Any dust or dirt on the mirror's reflective surface will drastically
reduce the operating range.
Operating Manual
Fig. 11
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