MACHINE LOADED TO 180 AMPS AT
26VDC.
This is the typical AC output voltage waveform
generated from a properly operating machine.
Note that each vertical division represents 10
volts and that each horizontal division repre-
sents 2 milliseconds in time. The machine
was loaded with a resistance grid bank. The
grid load meters read 180 amps and 26VDC
Note: Scope probes connected at machine
output terminals: (+) probe to electrode, (–)
probe to work.
SCOPE SETTINGS
Volts/Div.....................50V/Div.
Horizontal Sweep .....2 ms/Div.
Coupling.............................DC
Trigger.........................Internal
TYPICAL OUTPUT VOLTAGE WAVEFORM - MACHINE LOADED
DC STICK MODE
TROUBLESHOOTING AND REPAIR
F-36 F-36
PRECISION TIG® 225
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CAUTION
HIGH VOLTAGE / HIGH FREQUENCY can damage test equipment.
• Perform all voltage and waveform checks with high frequency circuit OFF.
• Perform High Frequency Disable Procedure.
____________________________________________________________________
0volts
2ms
50
volts
