SLC 210 / SLG 210
21
CHECKS AND MAINTENANCE
Verification of barrier efficiency
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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).
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The correct test object must be used for testing, depending on the barrier resolution.
Please see page 23 for the correct ordering code.
Refer to Figure 21:
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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 close to both
Emitter and Receiver.
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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 permanently on.
Figure 21
The SLC 210 / SLG 210 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 with 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.
If the yellow weak signal LED on the Receiver switches on (LED 5 in Figure 15), check that:
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the front surfaces are clean;
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the Emitter and Receiver are aligned correctly.
If the LED stays on, contact the K.A. Schmersal GmbH.