Arc Machines 205 WDR - Manual (Page 40)

M O D E L 2 0 5
O P E R A T O R ’ S M A N U A L
36 36 36 36
If an adjustment to the weldhead’s calibration potentiometer is required the
screen will display
CALIBRATION FAILED – TURN TRIM POT CCW – TRY AGAIN
or
CALIBRATION FAILED – TURN TRIM POT CW – TRY AGAIN
4. Using the screw driver supplied with the weldhead turn the weldhead’s
potentiometer a few turns in the recommended direction and re-run the calibration
procedure (Steps 1 & 2). Continue these steps until the screen displays
CALIBRATION COMPLETED.
Note
M21 weldheads do NOT have a calibration potentiometer.
To prevent possible injury do not open the weldhead until the calibration process is
complete.
4 4 4 4.10 .10 .10 .10 PERFORMING A W PERFORMING A W PERFORMING A W PERFORMING A WELD ELD ELD ELD
1. Install the weldhead per Section 3.5 and the specification sheet for the weldhead.
2. From the HOME screen press the LIBRARY key, select a weld schedule and press LOAD,
or use the OPEN LAST key to access the last schedule used.
3. Before performing the weld calibrate the weldhead to the schedule being used per Section 4.9.
This is required when a different schedule and/or weldhead is used.
4. Install the correct tungsten and the material to be welded into the weldhead as described in
the weldhead manual.
5. Turn on the gas source at the regulator/flow meter. Press the PURGE button and set the
required flow rate for the weldhead being used. Continue manual purge until all lines are
filled with the gas and all moisture and impurities have been removed. Turn the purge OFF
by pressing the PURGE button again.
Note
The font on the PURGE button turns red when it is activated.
Note
If for any reason the Operator leaves the Weld screen the manual purge will stop.