Technical data

ADMIRAL
8540484 • 28th January 2013 • Rev.10 23
CHECKOUTS AND MAINTENANCE
Verification of barrier efficiency.
 Before each work shift or before switching on, check the correct operation of the
photoelectric barrier.
Proceed as follows, intercepting the beams using the appropriate test object (available on
request).
 The correct test object must be used for testing, depending on the barrier resolution.
Please see page 25 for the correct ordering code.
Refer to Figure 23:
 Introduce the test object into the protected area and move it slowly, starting from
the top and moving down (or vice versa), first in the centre and then in the vicinity
of both the Emitter and the Receiver.
 Multibeam models:
Intercept each beam with an opaque object, first in the center of the detection
zone and then close to the emitter and the receiver.
 Make sure that during each stage of the test object’s movements the red LED on
the Receiver is always on.
Figure 23
The ADMIRAL barrier does not require any specific
maintenance operations; however, periodic
cleaning of the front protective surfaces of the
Emitter and Receiver optics is recommended.
Wipe using a clean, damp cloth; in particularly
dusty environments, after cleaning the front
surface, the use of an anti-static spray is
recommended.
Never use abrasive or corrosive products,
solvents or alcohol, which could damage parts.
Do not use woollen cloths, that could electrify the
front surface.
 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 weak signal LED on the Receiver switches on (LED 5 in Figure 16), check that:
– the front surfaces are clean;
– the Emitter and Receiver are aligned correctly.
If the LED stays on, contact the REER service department.