GYS PROTIG 221 DC FV Manuel D'utilisation page 24

Operating manual
CHOOSING THE CORRECTLY SIZED ELECTRODE
Electrode (mm)
1
1.6
2
2.5
3.2
4
CHOOSING THE IGNITION TYPE
HF TIG: high-frequency, contactless ignition.
LIFT-ARC TIG: contact ignition (for environments sensitive to HF disturbances).
1 2
1 2
WARNING: Increasing the length of the torch or return cables beyond the maximum length indicated by the manufacturer will increase the risk of
electric shocks.
STANDARD DC TIG WELDING
Standard DC TIG welding allows high-quality welding on most ferrous materials such as steel and stainless steel, but also titanium, copper and its
alloys, etc. The various ways of managing both the current and gas allow users to perfectly control the welding operation, from the first ignition to
the final cooling of your weld bead.
24
Translation of the original
instructions
DC TIG WELDING
Pure tungsten Tungsten with oxides
10 > 75 10 > 75
60 > 150 60 > 150
75 > 180 100 > 200
130 > 230 170 > 250
160 > 310 225 > 330
275 > 450 350 > 480
Approx = 80 A per mm of Ø
3
3
STANDARD DC TIG WELDING
The greyed-out fields cannot be used in this mode.
1- Place the torch in the correct welding position above the workpiece (maintaining a
distance of about 2-3 mm between the electrode's tip and the workpiece).
2- Press the torch button (the arc is ignited without contact using high-voltage and
high-frequency starting pulses).
3- The initial welding current will now begin to circulate. The welding process will
continue according to the welding cycle.
1- Position the torch's nozzle and the tip of the electrode on the workpiece
and activate the torch button.
2- Tilt the torch until a gap of about 2-3 mm separates the tip of the electrode from
the part being welded. The arc will ignite.
3- Return the torch to its normal position to start the welding cycle.
PROTIG 221 DC FV / TIG 300 DC