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Introduction ：
- 0 ： Press and hold the gun switch, Electromagnetic gas valve is turned on. The shielding gas starts to
ow.
- 0〜t1: Pre ow time, adjustment range of pre ow time: 0.1~1.0S.
- t1〜t2 ： Striking success, the output current slopes up to the setting current from minimum current
(5A), if the output pulse function is turned on, the slope up current is pulsed.
- t2〜t3 ： During the whole welding process, the gun switch is pressed and held without releasing.
Note: If the output pulse function is turned on, the output current is pulsed. If the output pulse
function is turned o , the output current is DC current.
- t3 ： Loosen the gun switch, the output current slopes down; if the output pulse function is turned
on, the slope down current is pulsed;
- t3〜t4 ： The output current slopes down to minimum current (5A), stop arc; adjustment range of
down slope time: 0~5S.
- t4〜t5 ： Post ow time, adjustment range of post ow time: 0.1〜10.0S.
- t5 ： Electromagnetic valve is closed and stop argon owing. Welding is nished.
Short circuit protect function ：
TIG /DC/LIFT ： If the tungesten electrode touches the workpiece when welding, the current will drop
to 30A, which can reduce the tungsten spoilage farthestly， prolong the using life of the tungsten
electrode， and prevent tungsten clipping.
TIG /DC/HF ： If the tungesten electrode touches the workpiece when welding, the current will drop to
0 within 1s, which can reduce the tungsten spoilage farthestly， prolong the using life of the tungsten
electrode， and prevent tungsten clipping.
MMA operation ： if the electrode touches workpiece over two seconds, the welding current will drop
to the 0 automatically to protect the electrode.
Prevent arc-break function ： TIG operation， Avoid arc-break with special means, even if arc-break
occurs the HF will keep the arc stable.
Notices:
- Check the condition of welding and connection units rstly, otherwise there will be malfunction
such as ignition spark、 gas leakage、 out of control and so on.
- Check that whether there is enough Argon gas in the shield gas cylinder, you can test the
electromagnetic gas valve through the switch on the front panel.
- Do not let the torch aim at your hand or else of your body. When you press the torch switch, the arc
is ignited with a high-frequency, high-voltage spark, and the ignition spark can cause interferences in
equipment.
- The ow rate is set according to the welding power used in the job. Turn the regulation screw to
adjust the gas ow which is shown on the gas hose pressure meter or the gas bottle pressure meter.
- The spark ignition works better if you keep the 3mm distance from the workpiece to the tungsten
electrode during the ignition.
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