OPERATION
16
TIG short welding
（
2T
）
：
t( s)
0
I( A)
Loosen the
welding gun
switch
Press and hold the
welding gun switch
t1
t5
Striking
success
Stop arc
t3
t4
Base current setting
value
t2
Welding current (peak
current) setting value
5A
Introduction
：
0
：
Press and hold the gun switch, Electromagnetic gas valve is turned on. The
shielding gas starts to flow;
0
～
t1
：
Pre flow time, adjustment range of pre flow time :0~1.0S;
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 off, 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: 0~5.0S;
t4
～
t5
：
Post flow time, adjustment range of post flow time: 3.0
～
10.0S;
t5
：
Electromagnetic valve is closed and stop argon flowing. Welding is finished.
The operation step of lifting arc:
1. Touch the tungsten electrode with workpiece.
2. Press the welding gun.
3. Lift the welding gun and strike arc.
