Troubleshooting & repair, Retest after repair – Lincoln Electric SQUARE WAVE TIG 255 SVM100-A User Manual
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SQUARE WAVE TIG 255
F-44
TROUBLESHOOTING & REPAIR
RETEST AFTER REPAIR
Should a machine under test be rejected for
any reason requiring the removal of any
mechanical part that could affect the
machine’s electrical characteristics, or if any
electrical components are repaired or
replaced, the machine must be retested.
NOTE: 50 Hz machines may be tested
using 60 Hz power.
Input Volts/Hertz
Maximum Idle Amps
208/60
44.0
230/60
40.0
200/50
47.0
220/50
43.0
380/50
25.0
Voltage Across
Power Factor
447-473 VAC
Capacitors
INPUT IDLE AMPS
TIG Modes
5 Amps @ 12 Volts
MAXIMUM ACCEPTABLE OUTPUT VOLTAGE –
AT MINIMUM OUTPUT SETTINGS
TIG Modes
255 Amps @ 29 Volts
MINIMUM ACCEPTABLE OUTPUT VOLTAGE –
AT MAXIMUM OUTPUT SETTINGS
OPEN CIRCUIT VOLTAGES
Stick Mode OCV
AC
69 – 73 VAC
DC
69 – 73 VDC
TIG Mode OCV
AC
46 – 54 VAC
DC
46 – 54 VDC
RECOMMENDED METERS FOR MACHINE OUTPUT TESTS
VOLTMETER:
AC and DC True RMS Meter – Fluke 8922A or equivalent
AMMETER:
Columbia Type AX AC or DC Tong Ammeter
IMPORTANT: IF OTHER TYPE METERS ARE USED RESULTS MAY NOT BE ACCURATE.