GYS TIG 250 AC/DC Mode D'emploi page 27

• Spotting - TACK (TIG DC)
This mode can also pre-assemble workpieces, but in two phases : first phase is DC pulse whcih concentrates the arc for enhanced penetration, fol-
lowed by a DC standard phase which enlarges the arc and the weld pool for a good spot.
The adjustable duration of each phase enables control of the weld time for better spot welding results and an non-oxidised spot.
TIG SYNERGIC
The SYNERGIC mode is a simplified mode which offers an advised configuration for the welding from 4 essential data.. The four settings are :
1- The type of metal of the workpiece: Iron and Steel (Fe), Nickel Chromium (NiCr), Copper and alloys (Cu/CuZn), Aluminium Magnesium, Alu-
minium Silicon and Aluminium 99% (Al99).
2- The type of joint: fillet , butt , lap and vertical down welding .
3- The diameter of the tungsten used in order to set the range of welding current without deteriorating it, and to optimise the iginition.
4- The thickness of the metal to weld
This mode can be of help to easily set weld parameters when you have just bought the machine. At any moment, the operator will be able to come
back to the normal mode without losing the current parameters set up in STD mode. Every SYNERGIC setting will be saved and the user will be able
to change them afterwards. This allows the operator to start welding with a number of parameters already set up.
SELECT IGNITION MODE
TIG HF: High Frequency start without contact
TIG LIFT : Contact start (for environments sensitive to HF disturbances).
Touch Switch
Pré Gaz 0.5s
COMPATIBLE TORCHES
L
TORCHES AND TRIGGER MODES
DB
For the 1 button torch, the button is called «main button».
For the 2 buttons torch, the first button is called «main button» and the second button is called «secondary button».
P
2T MODE
t
Main button
T1
TIG 250 AC/DC
Pictogram
Designation
Value
Lift
L
<1s
L
DB
DB
P
t
T2
Settings and options
Spot pulse
duration (s)
0.1s - 20s
1- Touch the workpiece with the electrode
2- Press the trigger on the torch
3- Pull back the torch to lift the electrode.
P
T1 - The main button is pressed, the welding cycle starts (PreGas,
I_Start, UpSlope and welding).
T2 - The main button is released, the welding cycle is stopped (DownS-
lope, I_Stop, PostGas).
For the double button torch and in 2T mode only, the secondary but-
ton works like the main button.
Spot time
Manual, 0.1s – 20s
EN
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