B-1
OPERATION
DC-400
B-1SAFETY PRECAUTIONS
Read this entire section of operating instructions
before operating the machine.
ELECTRIC SHOCK can kill.
• Have an electrician install and ser-
vice this equipment.
• Turn the input power off at the fuse
box before working on equipment.
• Do not touch electrically hot parts.
• This next section applies to DC-400’s without
the Capacitor Discharge Option:
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FUMES AND GASES can be dangerous.
• Keep your head out of fumes.
• Use ventilation or exhaust to remove
fumes from breathing zone.
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WELDING SPARKS can cause fire or
explosion.
• Keep flammable material away.
• Do not weld on containers that have
held combustibles.
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ARC RAYS can burn.
• Wear eye, ear, and body protection.
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See additional waring information under Arc
Welding Safety Precautions and in the front of this
Operating Manual.
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GRAPHIC SYMBOLS THAT APPEAR ONTHIS MACHINE OR IN THIS MANUAL
Input (Power)
On
Off
POWER ON-OFF SWITCH
Output (Control)
Increase/Decrease of
Output (Voltage or
Current)
OUTPUT CONTROL DIAL
Remote Output
Voltage or Current
Control
Local Output Voltage
or Current Control
OUTPUT CONTROL “LOCAL-REMOTE” SWITCH
Circuit Breaker
CIRCUIT BREAKER
High Temperature
THERMAL PROTECTION LIGHT