8540581 - 29/09/2010 - Rev.10
35
Grooving or fine scratching of the front plastic surfaces can increase the amplitude
of the emission angle of the light curtain, jeopardising detection efficiency in the
presence of lateral reflecting surfaces.
It is therefore fundamental to pay particular attention during the cleaning phases of
the curtain front window, especially in environments where abrasive dusts are
present. (E.g. cement factories, etc).
If the
yellow LED weak signal
("d" letter for the slave models)
on the receiver is on,
check that:
–
the front surfaces are clean;
–
the Emitter and Receiver are aligned correctly.
If the LED stays on, contact the REER service department.
