Tig Operation - Impax IM-TIG200 Instruction Manual

TIG OPERATION

Operation
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 area.
Plug the earth clamp lead in to the + terminal,
and secure the earth clamp to the workpiece.
For good contact, the earth clamp must be
attached to clean bare metal. Clean with a wire
brush where necessary.
Connect a regulator to a bottle of Argon gas
then connect the gas connection from the TIG
torch to the regulator.
Plug the TIG torch lead to the - terminal. Plug
the gas hose and TIG torch control plugs to the
relevant receptacles. For a diagram on the lead
installation please see page 29.
Switch the power switch on the back panel to
"ON", Fig.20.
Fig 20
The digital display will illuminate and the cooling
fan will operate. To stop the machine, press the
On/Off switch to the OFF position (O).
Press the MMA/TIG button to TIG mode, Fig.21.
Fig 21
Set the current by adjusting the amps control
dial (Fig.22) until the desired setting is reached.
Adjustment 10-200A.
Fig 7
Press the 2T/4T button to select either 2 step or
4 step mode, Fig.23.
Fig 23
TIG welding can either be done in 2 or 4 step
mode. When the torch trigger is pressed in the 2
step position the following sequence will occur
(Fig.24). The HF arc ignition starts; Keep the
torch 2~4mm away from the work piece to ignite
the arc. When the arc is established the HF
stops, and current rises to the preset value.
Fig 24
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