Fault Possible causes Corrective actions (see manual section x.x)
a) Apart from the edges, there are
other patches on the copies which
cause false pulses.
Prevent critical patches on the copies.
b) Laser beam on beam blocker
causes false pulses.
Adjust beam blocker correctly (yellow edge LED
must never light when the laser beam strikes the
beam blocker).
c) Unblocked laser beam is reflected
and causes false pulses.
Install beam blocker at proper distance.
2
Scatec counts more
copies than actually
pass the sensor
d) Conveyor belt stands still and
vibrates while an edge is still in the
laser beam.
This problem can be eliminated only by
synchronizing the sensor to the conveyor speed.
Scatec-10 and –15 can be synchronized.
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