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TROUBLESHOOTING & REPAIR |
TYPICAL OUTPUT VOLTAGE WAVEFORM - MACHINE LOADED
DC 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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10 V
MACHINE LOADED TO 180 AMPS AT 16VDC.
This is the typical DC (+) output voltage waveform generated from a properly operat- ing machine. Note that each vertical division represents 10 volts and that each horizontal division represents 2 milliseconds in time. The machine was loaded with a resistance grid bank. The grid load meters read 180 amps and 16VDC
Note: Scope probes connected at machine
output terminals: (+) probe to electrode,
0 V
2 ms
SCOPE SETTINGS
Volts/Div | 10 V/Div. |
Horizontal Sweep | 2 ms/Div. |
Coupling | DC |
Trigger | Internal |
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