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F-43 TROUBLESHOOTING & REPAIRF-43
TYPICAL OUTPUT VOLTAGE WAVEFORM - MACHINE LOADED TO 200 AMPS
DC - TIG MODE
HIGH VOLTAGE/ HIGH FREQUENCY can damage test equipment.
Perform all voltage and waveform checks with high frequency circuit OFF.
Perform High Frequency Disable Procedure.
| 0V |
20V | 5 ms |
This is the typical AC output voltage waveform generated from a properly operating machine. Note that each ver- tical division represents 20 volts and that each horizontal division represents 5 milliseconds in time.
NOTE: Scope probes connected at
machine output terminals: (+) probe to electrode,
NOTE: AC balance control set at “Balanced” position.
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SCOPE SETTINGS
Volts/Div | 20V/Div. |
Horizontal Sweep | 5 ms/Div. |
Coupling | DC |
Trigger | Internal |