Lincoln Electric Invertec V450-PRO User Manual page 29

D-4
VOLTAGE AND CURRENT CALIBRATION PROCEDURE (continued)
CURRENT CALIBRATION
PROCEDURE
1. Connect the resistive load band (approxi-
mately .087 ohms) and test ammeter to the
welding output terminals.
2. Press and
Select/Memory button.
3. Turn on the V450-PRO.
4. Rotate the Output Control knob until the
display reads "cur cAL".
5. Release the Mode Select/Memory button.
6. The left display will change to "IcAL" to
indicate that current calibration is in
progress.
7. The right display will scroll the following
message: Adj oCP SorEAL cur-300A.
8. Adjust the Output Control knob until the
actual output current reading on the test
ammeter is 300amps +/-2A.
9. Wait for the machines output to be
automatically turned off and then back on.
MAINTENANCE
hold in the Mode
INVERTEC V450-PRO (CE)
10. Adjust the Output Control knob again if
necessary to make the actual output cur-
rent reading on the test ammeter 300
amps +/-2A.
11. Wait for the machines output to be a u t o -
matically turned off and then back on.
12. Repeat the above two steps if necessary.
13. Press and release
Select/Memory button to save the calibra-
tion.
14. The left display will scroll the message
IcAL SAVEd.
15. The machine will reset to normal operation.
NOTE: If the Mode Select/Memory button
is not pressed within 30 seconds after
adjusting the Output Control knob the
machine will leave the calibration mode
and use the previous calibration settings.
D-4
the Mode