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TROUBLESHOOTING AND REPAIR
F-37 F-37
RANGER® 3 PHASE
This is the typical auxiliary output volt-
age generated from a properly operat-
ing machine. Note that each vertical
division represents 50 volts and that
each horizontal division represents 5
milliseconds in time.
Note: Scope probes connected at
machine 115VAC receptacle.
SCOPE SETTINGS
Volts/Div.....................50V/Div.
Horizontal Sweep.....5 ms/Div.
Coupling.............................DC
Trigger.........................Internal
NORMAL OPEN CIRCUIT AC WELD VOLTAGE WAVEFORM
HIGH IDLE - NO LOAD - OUTPUT CONTROL AT MAXIMUM
CH1
0 volts
5 ms
50 volts
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