Jasic JT-300P, Руководство оператора

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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 torch trigger operation steps Indicator for 2T →
Indicator for 4T →
Cycle mode →
Indicator for spot →
2T mode (normal trigger control)
The 2T (
↑↓)
LED light will illuminate when the power source is in 2T welding mode. In this mode, the
torch trigger must remain pressed (closed) for the welding output to be active. See example below:
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, HF discharge begins and then the welding arc will ignite 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.
4T (latch trigger control)
The 4T
↕↕
LED will illuminate when the power source is in 4T welding mode, this trigger mode is mainly
used for long welding runs to assist in reducing operator finger fatigue. In this mode the user can press
and release the torch trigger and the output will remain active until the trigger switch is depressed again
and released.
In 4T mode, the gas valve opens when the
torch switch is pressed down, after the
pre flow time ends, HF discharge occurs which
ignites the welding arc. Once the welding arc
has successfully ignited the initial current
value is active and the torch switch can now
be released, the welding current rises up to
the preset welding current value gradually
and you will continue to weld your material.
To finish welding, simply press the torch
switch down again and the current will begin
to gradually drop (slope out time) to the final current value. When the torch switch is released the current
output is cut off and the gas will continue to flow until your preset post flow time has elapsed.