Reer ARGOLUX AU S3M2, Инструкция по установке, эксплуатации и обслуживанию

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Sloping of the beam is recommended when the pallet has empty areas to
the side so that detection of the pallet by sensor 3 may not be continuous.
However, in some applications, sensor 3 must be rotated on a plane
parallel to the ground. In this case, the beam will no longer be in a plane
orthogonal to the direction of feed of the pallet.
This configuration is very useful when a set of pallets separated by a few
centimeters is to be made continuous (as regards sensing) (fig. 11).
Fig. 11 also shows a typical application in which the pallets are fed in
groups; a set of pallets can start a new muting cycle when the last pallet
of the previous set has freed sensor 3.
Figure 11
How to keep sensor 3 occupied with very close pallets.