Trumpf KF023, Руководство оператора

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Class 3 is subdivided into class 3R and class 3B acc. to EN
60825-1. A previously existing restriction of class 3 to certain
spectral ranges no longer exists.
Class 3R laser products exceed the limits of class 2. In most
cases the risk is low. The risk of injury increases with the time
of exposure. A deliberate irradiation of your eyes is dangerous.
Class 3B laser products are normally dangerous when you look
directly into the beam. The observation of diffuse reflections is
usually not dangerous. Class 3B laser products the power of
which almost reaches that of class 4 might produce light skin
injuries; they might also ignite inflammable material.
Exposure of the eye or skin to class 4 laser products is danger-
ous. Even diffuse radiation (scattered laser light) can be danger-
ous. Class 4 laser light can ignite inflammable material and
make explosive mixtures explode.
4.2 Gases, aerosols, dust
During workpiece processing, substances in form of gases, aero-
sols or dust can be escape from the workpieces; they are dan-
gerous to health. The biggest risk is caused when the substan-
ces enter your body through the respiratory tract. But even con-
tact with your skin or mucous membranes in your mouth, nose
or eyes can be dangerous.
Dust:
Solid particles > 1 µm.
Aerosols:
Gases containing finely divided solid or liquid particles < 1 µm.
Some escaping substances may cause cancer . The cancer risk
depends mainly on the material of the workpieces and the vol-
ume of emissions. Therefore it is important to analyze the com-
position of substances that may be produced during processing.
Carcinogenic substances include, for example:
■ Beryllium compounds
■ Zinc chromates
The volume of emissions depends on:
■ the type of material.
■ the processing speed.
■ the laser power.
■ the cutting gas pressure, if applicable.
Only use the laser product together with a suitable compact
dust extractor to extract harmful substances directly from the
12-29-01-A1-CRen 2022-03 Hazards
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Laser class 3
Laser class 4
Exhaust system