Lincoln Electric SVM194-A service manual 60TROUBLESHOOTING and REPAIRF-60

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F-60TROUBLESHOOTING AND REPAIRF-60

NORMAL OPEN CIRCUIT DC WELD VOLTAGE WAVEFORM

HIGH IDLE – NO LOAD – FINE CURRENT CONTROL RHEOSTAT AND SELECTOR

SWITCH AT MAXIMUM

	CH1
	0 volts
50 volts	5 ms

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This is the typical DC output voltage generated from a properly operating machine. Note that each vertical divi- sion represents 50 volts and that each horizontal division represents 5 milliseconds in time.

Note: Scope probes connected at machine output terminals.

SCOPE SETTINGS
Volts/Div	50V/Div.
Horizontal Sweep	5 ms/Div.
Coupling	DC
Trigger	Internal

CLASSIC® 300D & 300G