Operating Tig - Jasic EVOLVE 200 Operator's Manual

OPERATION TIG
Before starting any welding activity ensure that you have suitable eye protection and
protective clothing. Also take the necessary steps to protect any persons within the welding
area.
TIG welding mode
Terms used: TIG – Tungsten Inert Gas, GTAW – Gas Tungsten Arc Welding.
TIG welding is an arc welding process that uses a non-consumable
tungsten electrode to produce the heat for welding.
The weld area is protected from atmospheric contamination by
a shielding gas (usually an inert gas such as argon or helium) and
a filler rod matching the base material is normally used, though
some welds, known as autogenous welds, are carried out without
the need for filler wire.
The TIG welding process with the Evolve 200 is DC mode only:
DC - Direct current for welding steel, stainless steel, copper etc.
Connect the TIG torch work return cable /ground clamp, gas hose
and turn the machine on as shown on the previous page.
Please Note: The Evolve 200 is equipped with smart fan technology.
For remote control operation, which will allow the operator to use a remote control accessory, see page
120 for further details.
Press the torch trigger briefly, the solenoid valve will operate and gas will flow.
Adjust the welding current according to the thickness of the work piece to be
welded.
Hold the torch 2mm - 4mm away from the work piece and then press the torch
trigger. Gas will flow and after the arc is ignited, the HF discharge will cease and
the current will maintain the preset value and welding can be carried out.
After releasing the torch trigger, the welding arc will stop although the
shielding gas continues flowing for the post flow time and welding ends.
TIG tungsten size will depend on material type, work piece thickness,
welding position and joint form. See page 51 for further details.
Tungsten Size DC – Electrode Negative
1.0mm
1.6mm
2.4mm
Once the machine has powered up, select TIG mode as
detailed on page 22 and as shown in the image left (circled
red). In the lower left section, preset current is shown and
can adjusted via the left control dial which is previewed and
set to 120 amps as shown in the image left.
In the lower right hand section, the TIG pre-gas timer is
shown and can be adjusted via the right control dial and is
previewed and set to 0.1s as shown left.
15 – 80A
70 – 150A
150 – 250A
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