
4
Installation
Option: Anti-vibration connection/tilted mirrors
4.4.3
Option: Anti-vibration brackets
For installation of the light curtain at vibrationg machines
4.4.4
Multi-sided screening through tilted mirrors
Using tilted mirrors, the protective field can be "wrapped around" a hazardous area, thus providing protection from
several sides
(Fig. 21/1 and Fig. 21/2)
. Here, the law of reflection applies, whereby the angle of incidence is the same as the
angle of reflection. This means for that tilting of 90° requires the mirror to be installed at an angle of 45°. For this
purpose, the tilted mirrors for ULVT feature swivelling attachments.
Reflection loss:
Each reflection via a mirror weakens the transmitted signal. For this reason, the max. range and number
of mirror reflections must be observed when using mirrors. The transmitter, receiver and mirrors must always be
assembled vertically and checked using a spirit level. uren.
fig 21/1 Anti-vibration brackets
Operational reliability can only be ensured when the mirrors are assembled in a stable manner.
Refer to chapter 6.2 for precise adjusting information.
fig 21/2 Araangement of 2 tilted mirrors
fig 21/3 Arrangement of 3 tilted mirrors
mirror
mirror
receiver
receiver
mirror
transmitter
transmitter
Hazardous area
Hazardous area
FIESSLER
E L E K T R O N I K
21
Fiessler Elektronik GmbH & Co. KG
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Phone: +49 (0) 711 / 91 96 97-0 Internet: http://www.fiessler.de
Fax : +49 (0) 711 / 91 96 97-50 eMail: [email protected]