Electrical Grounding - Omtech LYF-175S User Manual

4.3 Electrical Grounding

• DO NOT use with an ungrounded 3-to-2 prong adapter. The machine's
grounding should be checked regularly for any damage to the line or loose
connections.
• Poor grounding WILL cause equipment failure and create a serious electrical
shock hazard. The manufacturer and/or seller bear(s) no responsibility and
assume(s) no liability for any damage, accidents, or injuries caused by bad
grounding connections.
This machine employs a CLASS 4 laser which is extremely high voltage and potentially dangerous.
Therefore, users MUST securely ground it to avoid the buildup of static electricity.
Execute one of the following depending on your situation:
If applicable, execute both grounding methods.
• Connect the main power cable to a standard 3-prong outlet firmly.
• Connect the ground wire on the back of the main tower to a dedicated ground cable.
The far end of the dedicated ground wire should
be securely connected to a metal rod driven at
least 8 feet (3 m) deep into soil located at least
5 feet (1.5 m) from the machine. The resistance
along the line should be no greater than 5 Ω .
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