Trumpf BEO D50, 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, dusts
When workpieces are processed, gases, aerosols or dusts can
be produced; these are dangerous to health. The biggest risk is
caused when the substances enter your respiratory tract. But
even contact with your skin or mucous membranes in your
mouth, nose or eyes can be dangerous.
Dust:
Solid particles > 1 µm.
Aerosols:
Gases with finely distributed 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 emit-
ted quantity.
Carcinogenic substances include
■ beryllium compounds
■ zinc chromates
The emitted quantity depends on:
■ the type of material.
■ the speed.
■ the laser power.
■ the cutting gas pressure, if applicable.
Only use the laser product in conjunction with an appropriate
exhauster to exhaust harmful substances directly at the process-
ing spot. It must only be possible to switch on the laser, when
the exhauster is active.
22-50-17-CRen 2020-01 Hazards
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Class 3
Class 4
Exhauster