2 Safety information
Please read this chapter before operating or servicing a Rayjet laser system!
2.1 General
The Rayjet is an apparatus with a high level of security. To guarantee a safe operation it is
necessary to know potential dangers and avoid risks. The dangers can be classified in three
categories:
Ò Dangers caused by the laser beam
Ò Dangers caused by electricity
Ò mechanical dangers
General Safety Instructions
When working with the laser engraver please take note of the following safety instructions:
1. Operation and service of the Rayjet may only be performed by trained personnel.
2. Direct exposure of skin or eyes to laser radiation may cause severe injuries. The correct
operation and service according to the manual can prevent hazards. Operators may
perform procedures required inside the housing only through the interlocked door. They
must never attempt to defeat the door interlocks nor remove non interlocked portions of
the housing.
3. The laser beam can ignite flammable materials. Therefore a fire extinguisher should
always be nearby. Do not store flammable materials near or inside the laser engraver.
Working with the laser or setting the system to service mode without supervision
is not permitted.
4. Many materials, especially non-anodized aluminium, copper, silver and gold, cannot be
engraved with the laser engraver due to the very low absorption of laser radiation. This
means that most of the energy of the laser beam is reflected. Therefore those materials
must not be present in the laser beam path as otherwise a reflected laser beam could
destroy the cover of the laser unit.
5. Beam adjustment may only be done by trained personnel. Otherwise there could be
uncontrolled emission of laser radiation. There are only limited possibilities to adjust the
mirrors due to a mechanic restriction. These restrictions may only be altered by
authorized personnel.
6. Before starting to work check whether the engraving of the material can cause harmful
fumes and whether the filters of your exhaust system are suitable for these fumes. It is
emphasized that it is the user’s responsibility to obey the national and regional threshold
values for dusts, fumes and gases. (The maximum concentration of harmful substances
MUST NOT be exceeded). Never use the laser engraver without an exhaust unit with
appropriate filters for the treated material, as cutting or engraving certain materials can
produce vapours. Materials causing toxic or carcinogenic smokes or fumes must not be
treated without an exhaust unit with appropriate filters. Furthermore it is the user’s
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