20 Installazione-Uso / Installation-User manual FL-FLR100
Figure 3 – Multiple optical beams installation
(Graph to be used to find out the distance between the detectors and the distance between the Tx and Rx units of each detector)
Moreover, it is fundamental that the Tx and Rx units (or the Tx/Rx unit and the passive reflector) are placed
in front of each other with the beam light perpendicular to them; as far as possible, the light optical beam
should be parallel to the ceiling and should follow the line of sight between the units.
In the special case of a passive reflector to be installed in a room with glossy surfaces (e.g. glazed walls),
the reflector must be placed about 30 cm away from the line of sight and properly aligned with the Tx/Rx
unit, as shown in the picture below.
Figure 4 - Installation of a Tx/Rx unit and a passive reflector on glossy surfaces
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