Leuze electronic GmbH + Co. KG
In der Braike 1 D-73277 Owen Tel. +49 (0) 7021 573-0
[email protected] • www.leuze.com
3
Installation / alignment
3.1
General
In order that optimum functioning of the device can be guaranteed, the following points must be observed during installation:
1.
The OPSL 775 must be installed in such a manner that vibrations are completely eliminated, otherwise there is a risk of counting
errors occurring.
2.
Observe the permissible ambient temperature!
3.
Avoid direct sunlight on the cover glass.
4.
As a safeguard against hazards to persons, the laser beam should not be pointed at reflective surfaces in the case of an
uninterrupted overlap flow, as this may deflect the laser beam in an undefined direction (see section 8).
3.2
Mounting
Working distance and direction of overlap flow
Fig. 3:
OPSL 775 - Working ranges
3.3
Direction of overlap flow and direction of overlap
The device will only be capable of counting the overlap flow correctly if it passes the laser beam going in the opposite direction (see fig.
4 left).
The OPSL 775 only counts those edges which are pointing in the conveying direction. Thus, in the case of an uninterrupted overlap flow,
the last copy is counted only once as the "falling edge" is not detected.
Fig. 4:
OPSL 775 - Overlap flow and direction of overlap
Notice!
The correct direction of overlap is stamped onto the front side of the device.
Threshold
Standard range
Focus range
Focus distance
Direction of movement of overlap flow
Laser beam
OPSL 775
OPSL 775
Direction of movement of the overlap flow
Rear edges are not counted!
Overlap position CORRECT
Overlap position INCORRECT
OPSL 775
Laser edge detector
