Jasic TIG 200P, Operator'S Manual

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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.
MMA
After connecting the welding leads as detailed you will need
to switch the power switch on the back panel to “ON”
Select MMA mode by pressing the
welding mode selecting key, and MMA
can be carries out. There is voltage
output at both output terminals.
At this time, the voltage indicator illuminates, and
welding can be carried out.
Set the amperage on the
machine suitable for the
electrode being used. Please
see below a guide to
amperages required. Ensure
you check that you have the
electrode polarity correct.
Select arc ignition time setting
function (This function changes
into spot welding time setting
function in TIG spot welding
mode.) by pressing the welding
parameter selecting key, and
arc ignition time in MMA can
be set. This sets the arc
ignition time.
Standard TIG mode
Connect the TIG torch leads as detailed above. Ensure that a
suitable inert gas supply is connected.
Switch the power switch on the back panel to “ON”
Select the TIG welding mode using the
selector switch.
Select the TIG operating mode (2T, 4T or
Spot) using the selector switch.
2T:
Press the torch trigger, gas valve opens, and
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; Release
the torch trigger, current decreases to the
minimum value, and then arc stops; Gas keeps flowing for
the post-flow time, and welding ends.
4T:
Press the torch trigger, gas valve opens,
and 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;
Release the torch trigger, and welding continues at the
preset current level. Press the torch trigger again and release
it, current begins to decrease to the minimum value, and
then arc stops; Gas keeps flowing for the post-flow time,
and welding ends.
After the parameters are set appropriately For control keys
see below), open the gas valve of the cylinder, and adjust the
gas regulator to obtain the desired flow rate.
Keep the torch 2~4mm away from the work piece, and then
press the torch trigger.
The gas solenoid valve operates. The gas will flow, and then
HF output will start.
After arc is ignited, the HF discharge will cease, the current
rises up to the preset value, and welding can be carried out.
After releasing the torch trigger, the current begins to
decrease as determined by the downslope setting to the
pilot arc value. Then, arc stops with gas kept flowing for the
post-flow time, and welding ends.
Spot TIG mode
Select the spot welding mode by pressing
the operation mode selecting key.
Select the spot welding time
setting function by pressing the
welding parameter selecting key,
and set the spot welding time.
Operation steps in spot welding:
11
Electrode Diameter (mm) Recommended Welding Current (A)
1.0 20~60
1.6 44~84
2.0 60~100
2.5 80~120
3.2 108~148
4.0 140~180
5.0 180~220
6.0 220~260