Nasum A5, Руководство пользователя

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potentially toxic . These fumes or airborne contaminants can be hazardous
to health.
0.3 Material safety
Do not engrave materials with unknown properties.
Materials Recommended:
Wood, bamboo, leather, plastic, fabric, paper, opaque acrylic, glass.
Materials not recommended:
Metal, precious stones, transparent materials, reflective materials etc.
0.4 Use Safety
Use the engraver only in horizontal position and ensure that it has
been securely fixed to prevent fires caused by accidental shifting or
dropping from the workbench during work.
It is forbidden to point the laser to people, animals or any combustible
object, whether it is in working condition or not.
0.5 Power safety
To prevent accidental disasters such as fire and electric shock, the
NASUM A5/A5 Pro Laser Engraver provides a power adapter with a
ground wire. Plug the power plug into the power socket with a ground
wire when using the Laser Engraver.