EN3.4.1 Using Manual operating mode1234 7891234 7658910WIRE INCHPress Automatic/Manual button to select the Manual mode. In Manual mode, the displayshows no Automatic mode information, such as welding wire thickness.In Manual operating mode, you use control knobs of the wire feeder to set the weldingvoltage and wire feed speed.Set these values according to the base material, the type and size of the welding wire, andaccording to your own welding style.3.4.2 Using Automatic operating mode1234 7891234 7658910WIRE INCHThe Automatic mode is in use by default, when you start the machine. Press the Automatic/Manual button to change between Automatic and manual operating modes.When you set the welding power with the wire feeder's control knob (A), the HiArc calculatesthe optimal welding parameters. With the wire feeder's arc length control knob (V) youcan make fine-adjustments to the arc lenght. The optimal Automatic values are calculatedautomatically also when you select the Tail Arc settings with the power source controls.HiArc M 350A, M 500A12