Lincoln Electric RANGER 225 GXT Service Manual page 76

F-36
TYPICAL AC WELD OUTPUT WAVEFORM
TROUBLESHOOTING AND REPAIR
MACHINE LOADED
20 volts
MACHINE LOADED TO 225 AMPS AT 25 VDC
This is the typical AC 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
RANGER® 225 GXT
CH1
0 volts
5 ms
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