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TROUBLESHOOTING AND REPAIR
F-31 F-31
RANGER® 3 PHASE
This is the typical DC output voltage
generated from a properly operating
machine. Note that each vertical divi-
sion represents 20 volts and that each
horizontal division represents 5 mil-
liseconds in time. The machine was
loaded with a resistance grid bank.
Note: Scope probes connected at
machine 115VAC receptacle.
SCOPE SETTINGS
Volts/Div.....................20V/Div.
Horizontal Sweep.....5 ms/Div.
Coupling.............................DC
Trigger.........................Internal
TYPICAL DC WELD OUTPUT WAVEFORM (CC MODE)
MACHINE LOADED
MACHINE LOADED TO 200 AMPS AT 26 VDC
CH1
0 volts
5 ms
20 volts
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