Spot Welding - gala gar GALA ELECTRONICS 200 ACDC Manual Técnico De Instrucciones

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GALA ELECTRONICS 200 ACDC 15
The supply of gas continues for a period equal to the POST-GAS time (adjustable).
2t Hf Welding
Bring the torch near to the piece to be welded, keeping the point of the electrode 2 or 3 mm away from the piece
itself.
Press (1T) and keep the button for the torch held down.
The arc strikes without contact with the piece, and the voltage discharges (HF) automatically stop.
The WELDING CURRENT goes to the value set, carrying out an ASCENT RAMP if necessary (adjustable time)
Release (2T) the button to start the process of completing the weld.
The current goes to the FINAL CURRENT value set in a period equal to the chosen DESCENT RAMP time (adjustable).
The electric arc goes out.
The supply of gas continues for a period equal to the POST-GAS time (adjustable).
4t Hf Welding
Bring the torch near to the piece to be welded, keeping the point of the electrode 2 or 3 mm away from the piece
itself.
Press (1T) and release (2T) the button of the torch.
The arc strikes without contact with the piece, and the voltage discharges (HF) automatically stop.
The WELDING CURRENT goes to the value set, carrying out an ASCENT RAMP if necessary (adjustable time).
Press (3T) and keep the button held down to start the process of completing the weld.
The current goes to the FINAL CURRENT value set in a period equal to the chosen DESCENT RAMP time (adjustable).
The electric arc stays lit, and the supplied current is equal to the FINAL CURRENT (adjustable). Under these
conditions, it is possible to carry out the closing of the weld bath (CRATER FILLER CURRENT).
Release (4T) the button to cut off the arc.
The supply of gas continues for a period equal to the POST-GAS time (adjustable).
Bi-Level Welding
Bring the torch near to the piece to be welded, keeping the point of the electrode 2 or 3 mm away from the piece
itself.
Press (1T) and release (2T) the button of the torch.
The arc strikes without contact with the piece, and the voltage discharges (HF) automatically stop.
The WELDING CURRENT goes to the value set, carrying out an ASCENT RAMP if necessary (adjustable time).
Press and immediately release the torch button to go on to the SECOND WELDING CURRENT. The button should not
be kept pressed for more than 0.3 seconds, otherwise the phase will start for the completion of the weld. By pressing
and immediately releasing this button, you can return to the WELDING CURRENT.
Press (3T) and keep the button held down to start the process of completing the weld.
The current goes to the FINAL CURRENT value set in a period equal to the chosen DESCENT RAMP time (adjustable).
The electric arc stays lit, and the supplied current is equal to the FINAL CURRENT (adjustable). Under these
conditions, it is possible to carry out the closing of the weld bath (CRATER FILLER CURRENT).
Release (4T) the button to cut off the arc.
The supply of gas continues for a period equal to the POST-GAS time (adjustable).

Spot Welding

All our generators TIG HF have been provided with the spot-welding function. After having switched the machine to
2T HF, set the final welding current to a value close but not equal to the welding current and set the desired spot-
welding time on the descent ramp time.
Put the torch close to the workpiece to be welded, leaving a distance of 2 or 3 mm between the electrode tip and the
workpiece.
Press (1T) and release (2T) the torch button.
The arc is struck without touching the workpiece and sparks (HF) will automatically stop.
The WELDING CURRENT will reach the value programmed; the arc will be maintained for as long as the time set on
DESCENT RAMP TIME until reaching the value set on FINAL CURRENT.
Gas is fed out for as long as the time set on POSTGAS (adjustable).
S4: Welding mode selection key. Each time the key is pressed it is possible to move from one welding mode
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to another only when they are not in the process of welding.
If the led next to the symbol is on, the selection is confirmed.
The welding modes which can be selected are: