OPERATION |
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OPERATING INSTRUCTIONS
WARNING
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts or electrode with skin or wet clothing.
•Insulate yourself from work and ground.
•Always wear dry insulating gloves.
FUMES AND GASES can be dangerous.
• Keep your head out of fumes.
• Use ventilation or exhaust to remove fumes from breathing zone.
WELDING SPARKS can cause fire or 
explosion.
•Keep flammable material away.
•Do not weld on closed containers.
ARC RAYS can burn eyes and skin.
• Wear eye, ear and body protection.
See additional warning information at front of this operator’s manual.
DUTY CYCLE
The Invertec is rated at 300 amps, 60% duty cycle for 3 phase inputs (based on a 10 minute cycle). It is also rated at 250 amps, 100% duty cycle.
CONTROL FUNCTION / OPERATION
POWER SWITCH - Place the lever in the “ON” position to energize the machine. When the power is on, the digital meter will activate and the fan will operate.
OUTPUT CONTROL - This controls the output voltage in the CV modes and output current in the CC modes.
Control is provided over the entire output range of the power source with 1 turn of the control knob. This con- trol may be adjusted while under load to change power source output.
OUTPUT
LOCAL/REMOTE SWITCH - Place in the “LOCAL” position to allow output adjustment at the machine. Place in the “REMOTE” position to allow output adjust- ment at the wire feeder or with a remote control option package.
REMOTE
DIGITAL METER SWITCH - Select either “A” for amps or “V” for volts to display welding current or voltage on the meter.
When welding current is not present, the meter will dis- play the set current for the CC modes or the set volt- age for the CV modes. This set reading is an indication of machine control setting. For a more precise process reading, read meter during actual welding.
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