SG-DM INSTRUCTION MANUAL
2
NOTES AND WARNINGS
To guarantee the correct functioning of the safety light curtains, we recommend the use
of no more than three deviating mirrors to deviate the beam along the optic path.
Each mirror used decreases the operating range of the safety light curtain by 15%, 20%,
25%. Apply a correction factor of 85% using one mirror, 65% using two mirrors, 50% for
three mirrors.
To maintain the correct functioning of the system, we advise to periodically clean the
mirror surface using a damp non-abrasive cloth. The cleaning frequency depends on the
system’s surrounding environment.
The mirror length has to be at least 100 mm superior to the length of the light curtain’s
protected area.
The mirror has to be mounted in such a manner that its axis (horizontal and vertical)
coincide with the corresponding safety device axis.
The mirror has to be solidly fixed to avoid accidental movements or strong vibrations.
The use of the SE-S floor stand or the SG-PSB Protective Armor Stands is
recommended. The mirror is fixed to these using the appropriate accessory mounting kit.
The use of the “SE-DM K DEVIATING MIRROR FIXING KIT” (cod.95ACC2530) is
recommended when installing the devices in environments characterized by strong
temperature variations and/or in presence of vibrations.
Given the limited mirror width, the entire system is particularly sensitive also to small
rotations along the vertical axis of the mirror and emitting and receiving units.
Hence particular attention has to be taken during system alignment and part fixing.
To facilitate system installation (mirror/s and safety light curtain) the use of the Datalogic
SG-LP laser pointer is suggested.
The drawing shows an area protection system composed of a safety light curtain and two
mirrors.
Figure 1
Emitter
Receiver
Corner Mirror
Corner Mirror
