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6.7 Use of corner mirrors
To protect and monitor hazardous areas with access from several sides one or
several mirrors can be used (available as accessory)� By using mirrors the light
beam emitted by the transmitter can be sent via several access sides�
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To obtain a reflection angle of 90° the mirrors are to be oriented in an angle of
inclination of 45°�
The following image shows an application where U-shaped access protection is
implemented using two mirrors�
receiver (R)
transmitter (T)
A = hazardous area
M = corner mirror
S = min� safety distance
Dx = side length
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Install the mirrors so that the minimum safety distance (S) is adhered to at each
side of the hazardous area�
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During installation make sure that the reflecting area is plane and that no
vibrations affect the safety device�
• The range is the sum of the length of all sides (D1 + D2 + D3) of the access to
the protected area� The maximum range of the photoelectric safety sensors is
reduced by 15% for each mirror�
• Do not use more than three mirrors�
