Fig. 3 – Arc Machines 205 WDR User Manual
Page 50
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O P E R A T O R ’ S M A N U A L
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PROCESS
A weld schedule is required for calibration and will need to be created the first time a
calibration is done.
1. Set up a Weldhead rated for 150 amps continuous duty and insert a tube, pipe, or copper
rod that can withstand 150 amps of continuous current with no rotation. If these items are
not available then use a Hand Torch on a large plate with the torch fixed so it cannot
change the gap during calibration.
2. Connect the shunt between the ground connection on the power supply and the ground
connection on the weldhead or manual torch. Current is always measured along the return
path (Fig. 3).
Fig. 3
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