Electrical Safety Instructions; Autofocusing Your Laser - Omtech POLAR+ User Manual

1 Safety Information
• NEVER leave any part of the engraver open during operation except (when needed) the pass-
through doors. Never interfere with the laser beam, do not place any part of your body in any
part of the laser path during operation, and never attempt to view the laser directly. When using
the pass-through doors or otherwise risking exposure to the laser beam, take measures to
protect yourself from potentially reflected laser beams including the use of personal protective
equipment such as protective eyewear specially designed to filter the specific wavelength of
your engraver's laser with an optical density (OD) of 5 or higher.
• DO NOT stare or allow others to stare continuously at the laser beam during operation even
when the cover is closed and/or wearing protective eyewear. Exercise caution with the red dot
positioning light as well, as its direct beam is a Class 2 laser in its own right.
• ONLY use this engraver if its automatic shutoffs are working properly. When you first get this
engraver and if you subsequently notice any problems, test them (see
Page 43) before undertaking any other work. Do not continue use if the shutoffs do not occur.
Turn off the engraver and contact customer service or your repair service. Never disable these
shutoffs.
• DO NOT ever under ANY circumstances use this laser engraver if the water-cooling system is
not working properly. Always activate the water-cooling system and visually confirm that water
is flowing through the entire system before turning on the laser tube. Immediately stop use if
the water-cooling system malfunctions.
• DO NOT use generic antifreeze in your cooling water, as they may leave corrosive residues and
solidify inside your hoses and piping, causing malfunctions and even explosions. Use custom
laser-safe formulations or use and store your engraver in a climate-controlled area.
• DO NOT leave potentially combustible, flammable, explosive, or corrosive materials nearby where
they could be exposed to the direct or reflected laser beam.
• DO NOT use or leave sensitive EMI equipment nearby. Ensure the area around the laser is free of
strong electromagnetic interference during any use.
• ONLY use this machine for working the materials described in the Material Safety section of
this manual. The laser settings and engraving process must be properly adjusted for specific
materials.
•
Ensure the area is kept free of other airborne pollutants, as these might pose a similar risk of
reflection, combustion, etc.

1.5 Electrical Safety Instructions

• ONLY use this engraver with a compatible and stable power supply with less than 5% fluctuation in
its voltage.
• DO NOT connect other devices to the same circuit, as the laser system may require its full
amperage.
5
§5 Initial Testing on