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TROUBLESHOOTING AND REPAIR | ||
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NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM
AC TIG MODE
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.
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50 volts
0 volts
2ms
This is the typical AC output voltage waveform generated from a properly operating machine. Note that each vertical division represents 50 volts and that each horizontal division rep- resents 2 milliseconds in time.
Note: Scope probes connected at
machine output terminals: (+) probe to electrode,
SCOPE SETTINGS
Volts/Div | 50V/Div. |
Horizontal Sweep | 2 ms/Div. |
Coupling | DC |
Trigger | Internal |
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