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Safety Precautions
Be sure to securely connect the GL400/350's power cord.
• After checking that the Power switch is turned off, connect the power cord's
female plug to the GL400/350 and then connect its male plug into the
electrical socket.
• Use of the GL400/350 without the power cord securely plugged into the
electrical socket may result in electrical shock due to current leakage.
• Before running the GL400/350 using a DC power supply, be sure to ground
the protective ground terminal (
hazards. For grounding, use a ground wire with a diameter of at least 0.75
mm
2
.
When using the GL400/350 in an environment where grounding is not
possible, ensure that the voltage to be measured is no greater than 50 V
(DC or rms).
If the GL400/350 generates smoke, is too hot, emits a strange odor , or otherwise functions abnormally, turn
off its power and unplug its power cord from the electrical socket.
• Use of the GL400/350 in such status may result in a fire hazard or electrical
shock.
• After checking that smoke is no longer being generated, contact your sales
representative or nearest Graphtec vendor to request repair.
• Never try to perform repair yourself. Repair work by inexperienced
personnel is extremely dangerous.
Before turning on the GL400/350, ensure that the electric socket's supply voltage conforms to the GL400/
350's power rating.
• Use of a different supply voltage may cause damage to the GL400/350 or a
fire hazard due to electrical shock or current leakage.
Never disassemble or remodel the GL400/350.
• Such action may cause a fire hazard due to electric shock or current
leakage.
• Contact with a high-voltage component inside the GL400/350 may cause
electric shock.
• If repair is required, contact your sales representative or nearest Graphtec
vendor.
Avoid using the GL400/350 in extremely dusty or humid places.
• Such use may cause a fire hazard due to electrical shock or current
leakage.
iv
Safety Precautions
WARNING
) to avoid electrical shock and fire
Securely connect the power cord
Make sure that the socket has a good
protective ground
Amateur repair
prohibited
Use of a different
supply voltage
prohibited
No disassembly
Use prohibited
Watch out for
electrical shock
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