Jasic EVOLVE 200 Operator's Manual page 44

TIG TORCH TRIGGER FUNCTION
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 Torch Trigger Operation
2T mode (normal trigger control)
The 2T icon located in the top bar will be highlighted when the power source is in 2T welding mode.
In this mode, the TIG torch trigger must remain pressed (closed) for the welding output to be active.
Press and hold the torch trigger to activate the power source, the gas valve and gas will flow.
After the gas pre flow time ends, the welding arc will ignite when the tungsten touches and then is
retracted from the work piece and then the current rises up (slope up time) to the welding current value
gradually until you achieve the preset welding current.
When the torch switch is released, the current begins to drop gradually (slope down time) and when it
drops to the minimum current value, the welding output is cut off and the gas valve will close, once the
post flow time ends, this is the end of the welding process. If the torch switch is pressed down during the
current downslope period, the current will rise up again to the preset welding current value and the slope
out process will only start again once the torch switch to be released.
Please Note: 2T control is available for both TIG and MIG welding modes.
Spot Time
The spot time icon located in the top bar will be highlighted when the power source is in spot mode
welding mode.
In this mode, the TIG torch trigger must remain pressed (closed) for the welding output to be active.
Press and hold the torch trigger to activate the power source, the gas valve and gas will flow.
After the gas pre-flow time ends, the welding arc will ignite and the welding current rises to the preset
welding current value.
Once the preset spot time has elapsed the welding arc will spot and once the post gas time has finished
you can then remove the TIG torch from the welding area.
Please Note: Spot mode control is available for both TIG and MIG welding modes.
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