Contents and general safety instructions
VI
Festo GDCA-CHB-C-N en 1508e English
Light beam
With regard to the blue light hazard, the Checkbox Com
pact exceeds the limit values of the free group in ac
cordance with DIN EN 62471:2009-03. Therefore, an assi
gnment to risk group 1 applies for the blue light hazard.
Looking at the light source for a long or prolonged period
can dazzle your eyes and cause irritation.
Take measures to prevent eye exposure:
Do not remove any housing parts.
Only mount/remove the prism support when the power
supply is switched off.
Also take measures to ensure that if the light beam is
reflected off mirrored or reflective objects, it does not
pose a hazard (for example, by providing screening).
Do not look directly into the light beam and do not direct
the beam into the eyes of other people.
Ordinary light sources are divergent, i.e. the illuminated area
becomes larger as the distance from the light source in
creases. As a result, the risk of eye injury decreases as the
distance from the light source increases. However, as the
Checkbox Compact uses parallel light, the risk of eye injury is
not reduced as the distance increases; this applies to both
looking directly at the beam and looking into the beam via a
reflective surface.
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