23YLS-K
Laser classes
Lasers are classified into various classes based on their danger poten-
tial. The meaning of the laser classes according to standard Norm EN
60825-1 is described briefly below. A precise definition of the laser
classes with indication of limits of accessible radiation can be found in
this standard.
Class 1
Laser systems that are safe in normal operation even with prolonged di-
rect observation of the laser beam and even if the exposure occurs in
connection with optical instruments (magnifying glasses or telescopes).
Class 2M
Laser systems that emit visible radiation that is safe for the naked eye
only in event of brief exposure. An eye injury can be caused by exposure
through focusing optical instruments (magnifying glasses, telescopes,
microscope, etc.).
Class 4
Laser systems for which direct viewing of the beam and skin exposure
are dangers and for which even the viewing of the diffuse reflections
can be dangerous. These lasers also frequently pose a fire risk.
Classification of
the product into
laser classes
With suitable protective housing and protection covers, the product sat-
isfies the requirements of laser class 1.
With opened protective housing and bypassed safety switches (if
present) as well as directly at the point of beam exit from the process
fiber, the product falls under laser class 4.
The guide laser of the device in the visible spectral range from 600 nm
to 700 nm satisfies the requirements of laser class 2M as long as the
cross-section is not reduced by optical instruments (e.g. microscope).
2.9.3 Gas and particle emission
The intended use of the product consists of cutting and welding applica-
tions on metals and metal alloys. During the processing of some materi-
als, toxic gases can be produced by the interactions between the laser
beam and the material during the cutting or welding process. This must
be taken into account by the system owner. The product itself does not
emit any hazardous substances.
2.9.4 Sound level
The A-weighted noise emissions level L
pA
for the product is less than 70
dB(A).
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