Safety Light Curtain – C4 compact ME Series
Installation Guide
File Number: CD1011
page 42 Date: 12 April, 2017
Appendix 3 – Mirrors
Reflector mirrors can be provided enabling two or three sides of a machine to be safeguarded
with, what is effectively a single light curtain.
When mirrors are employed it is essential that the mounting of the transmitter unit, receiver unit
and mirrors themselves are sufficiently rigid. Alignment becomes increasingly critical as the
range and number of mirrors increase. Mirrors cause a reduction in optical efficiency, reducing
the effective range. A guide to the practicality of using mirrors is given below.
Range of the
light curtain
Maximum range
through 1 mirror
Maximum range
through 2 mirrors
3m - 10m
8m
6m
Total Light Path
1 Mirror
2 Mirror
2m Easy
Easy
4m Easy
Medium
6m Medium
Hard
8m Hard
Not
Feasible
The angle of the infrared beams from the light curtain striking the reflective surface must be
within defined limits as per the drawings above.
Perimeter curtains will be easier to align, curtains over 900mm may be more difficult to align.
Check with the Smartscan technical department prior to ordering for a particular application,
[email protected], Tel: 886 - 4 - 23598885, Fax: 886 - 4 – 23599423
