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SP3000

Safety

28 / 87 BA 8034_2.4_EN (12/2016)

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2.8.4 Optical components

WARNING

Damage to optics

Soiled optics absorb laser radiation and can thus be destroyed. Broken or damaged

lenses as well as thermal decomposition of lenses release particles which cause serious

damage to the health.

- The passive reflectors and optics in the area of the beam guidance should be

cleaned regularly.

- Special care is required when handling, attaching and cleaning these elements.

- Do not exert non-uniform pressure.

- Do not use tools or hard objects to clean the surface.

- Never touch the optics with your bare fingers.

- Never use cleaning tissues twice.

- When lenses get broken, damaged or thermal decomposed follow the protective

measures.

- Disposal according to regulations and laws valid in the users' country.

- Lenses with scratches or penetrations must not be used anymore!

2.8.4.1 Scratched or destroyed lens surface

Be aware that scratches in the coating may release small quantities of thorium, which may be harmful

upon inhalation or swallowing.

2.8.4.2 Thermal decomposition

Upon thermal decompositions, vapors of selenium oxide and zinc oxide are formed. Upon inhalation or

swallowing there is danger of poisoning.

Indicators for thermal decomposition of ZnSe include deposits in the form of red or white powder and

an unpleasant odor.

2.8.4.3 Broken lenses

When optical components of zinc selenide (ZnSe) are destroyed, toxic dusts and vapors are formed

which must not be inhaled. The dust can additionally cause irritations of the eyes, skin and respiratory

tract.

If a lens has been destroyed during operations, care is to be taken during removal and cleaning.