LOKERMANN GRAND ARC 320 CEL PFC MV, Руководство пользователя

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(1) Switch the ON/OFF Switch (located on the rear panel) to OFF.
(2) Connect the earth lead to “+”, tighten clockwise;
(3) Connect the TIG torch cable to “-”, tighten clockwise;
(4) Using a secured Argon cylinder, slowly crack open then close the cylinder valve while standing off
to the side of the valve. This will remove any debris that may be around the valve & regulator
seat area;
(5) Install the regulator and tighten with a wrench;
(6) Connect the gas hose to the outlet of the Argon regulator, and tighten with a wrench;
(7) Be sure the gas valve on the torch is closed, and slowly open the Argon Cylinder Valve to the fully
open position;
(8) Connect the ground clamp to your work piece;
(9) Plug the power cable into the appropriate outlet.
NOTE:
-
When TIG operation, the shielded gas is inputted to welding gun directly.
-
Secure the gas cylinder in an upright position by chaining them to a stationary support to prevent
falling or tipping.
3.3.2
Operation
for TIG
Welding
3.3.3
TIG Welding
Fundamentals
Stricking the arc for TIG Operation: when tungsten electrode touches the workpiece ， the short-circuit
current is only 28A . After generating arc, current can rise to the setting welding current. If the
tungesten electrode touches the workpiece when welding, the current will drop to 5A within 2s, which
can reduce tungsten waste
， prolong the using life of the tungsten electrode ， and prevent tungsten
clipping.
Scraping arc
(1) According to the above method to install is correct, turn the power switch to the “ON” position,
the power LED light should illuminate, the fan comes on, the device work properly.
(2) Select the LIFT TIG function with the LIFT TIG/MMA/MMA VRD selector switch.
(3) Set the weld current control knob to the desired amperage.
(4) The tungsten must be ground to a blunt point in order to achieve optimum welding results. It is
critical to grind the tungsten electrode in the direction the grinding wheel is turning.
(5) Install the tungsten with approximately 3mm to 7mm sticking out from the gas cup, ensuring you
have correct sized collet.
(6) Tighten the back cap
(7) Commence welding. If necessary, readjust the Weld Current control to obtain the welding
condition re-quired.
(8) After completion of welding the Power Source should be left turned ON for 2 to 3 minutes. This
allows the fan to run and cool the internal components.
(9) Switch the ON/OFF Switch (located on the rear panel) to the OFF.