Inspection And Maintenance; Verification Of Light Curtain / Light Grid Efficiency - schmersal SLC 210 Instructions De Montage

INSPECTION AND MAINTENANCE

VERIFICATION OF LIGHT CURTAIN / LIGHT GRID EFFICIENCY

Before each work shift or just after switching on, check the correct operation of the
photoelectric light curtain / light grid.
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 light curtain / light
grid resolution.
Refer to Figure 21:
The SLC / SLG 210 RFLC light curtain/light grid 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.
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 21
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