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
Cycle mode
The cycle
↕↕ (□)
LED light will illuminate when the power source is in repeating mode, upon pressing the
torch trigger switch the gas valve opens and after the pre flow time ends, HF discharge will engage the
welding arc. Once the welding arc is ignited successfully, the initial current is present then after the
operator releases the torch switch the
welding current rises up to the preset
welding current value gradually
(depending on preset upslope time).
When the torch switch is pressed down
again, the current begins to drop
gradually to the final current arc value.
When the torch switch is released again,
the current will rise gradually up to the
welding current value again.
‘ Cycle ’
means the welding current varies
between the final arc current value and
the welding current value.
To extinguish the welding arc, press and release the torch trigger briefly (within 1/5 of a second) and the
arc will be extinguished immediately and the current output will be shut off. The gas valve will then close
when the post flow time ends and the welding process ends.
Spot welding mode
The spot ••• LED will illuminate when the
power source is in spot welding mode.
To set the spot welding time setting, refer
to page 24 for selecting and setting the
spot time.
On pressing the torch trigger, gas will flow
and at the end of the gas pre flow time HF
will initiate the welding arc.
Once the welding arc is ignited the
welding current is present and no matter
if the torch switch is on or off the machine
will still offer welding current until the
preset spot welding time the user set has
timed out and then the welding arc will be extinguished. The gas will continue until the post flow time
ends when the welding process ends.
Please note:
Spot welding can only be carried out in HF TIG mode only.