Datasensor SE-DM 1500 Manuel - Page 2

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SE-DM SERIES

Deviating mirrors

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 direction.
- 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, of than.
- 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 is recommended; the mirror is fixed using the two fixing brackets and four
screws provided in the package.
- 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 Datasensor SE-LP laser
pointer is suggested.
The drawing shows an area protection system composed of a safety light curtain and two mirrors.

INSTALLATION

- Define the area to protect and the precise positions where to install the deviating mirrors and the emitting
and receiving units of the light curtain.
- Fix the floor stands, in the defined points, verifying that their axis are perpendicular to the floor.
- Install the deviating mirrors and emitting and receiving units on the floor stands respecting the warnings
given previously.
- Orient the mirrors to about 45° respect to the optic direction.
- Insert the SE-LP laser pointer in the upper part of the emitting unit; orient the unit in order that the laser
beam hits the surface of the first mirror in an central point of the vertical axis and at the same height at
which the pointer is installed.
- Repeat the same procedure inserting the pointer in the lower part of the unit; if necessary repeat these
procedures until the desired result is achieved.
- Orient the first mirror in order that the laser beam hits the second mirror as described above.
For the angular adjustment rotate the fixing brackets on the relative pins and fix the screws when the
required position is reached. For adjustments of the vertical axis use the holes present of the mirror's body
and/or modify the inclination of the floor stand using washers.
- Orient the second mirror according to the same modes used previously guaranteeing that the laser beam
hits the receiving unit.
- Insert the SE-LP laser pointer in the upper part of the receiving unit and, orientating this unit, in order that
the laser beam, reflected from the two mirrors, hits the emitting unit.
Repeat the same procedure inserting the laser pointer in the lower part of the unit.
NOTE: The laser pointer, due to mechanical tolerance problems in the matching with the light curtain
housing, provides an approximate indication and hence small corrections may be necessary in the
unit alignment using the normal ALIGNMENT PROCEDURE described in the safety light curtain
instruction manual.
DO NOT move the mirrors as the laser beam guarantees the perfect
alignment.
856000390 Rev.A