Omtech LYF-20MP User Manual page 11

1.6 Electrical Safety Instructions
• ONLY use this machine with a compatible and stable power supply with less than 5%
fluctuation in its voltage.
• DO NOT connect other devices to the same fuse, as the laser system WILL require its
FULL amperage. DO NOT use with standard extension cords or power strips. Use ONLY
surge protectors rated over 2000 J.
• ONLY turn on the power to this device when it is well grounded, either via a firm
connection to a 3-prong outlet or via a dedicated ground cable firmly connected to the
proper slot on the back of the main tower. DO NOT use with an ungrounded 3-to-2 prong
adapter. The device's grounding should be checked regularly for ANY damage to the line
or loose connections.
• Turn the machine on and off using its power buttons in the correct order. The laser has a
separate power supply that is separately grounded. Pushing all the buttons at once, too
quickly, or in the wrong order may send electrical current to an ungrounded component,
causing short circuits and other electrical hazards.
• ONLY use this machine with one hand at a time. The laser is powered by an EXTREMELY
high voltage connection and placing two hands on the machine at one time during
operation has the potential to create a closed circuit with the human body, resulting in
electrical shock.
• The area around this laser marking device should be kept dry, well ventilated, and
environmentally controlled to keep the ambient temperature between 40 ℉ –95 ℉
(5 ℃ –35 ℃ ). The ambient humidity should not exceed 70%.
• Adjustment, maintenance, and repair of the electrical components of this machine must
be done ONLY by trained and skilled professionals to avoid fires and other malfunctions,
including potential radiation exposure from damage to the laser components. Because
specialized techniques are required for testing the electrical components of this marking
system, it is recommended such testing ONLY be done by the manufacturer, seller, or
repair service.
• Unless otherwise specified, ONLY undertake adjustment, maintenance, and repair of the
device when it is turned off and disconnected from its power supply.
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