Start Current (L2); Welding Current (Peak Current) (L4); Base Current (L5) - GALAGAR SMART 200 TIG PULSE Manual Técnico De Instrucciones

3.3. Welding Operation
3.3.1 Argon Arc Welding Operation
TIG long welding（4T):
I( A)
Welding current (peak
current) setting value
Base current setting
value
Press and hold the
welding gun switch
0
Introduction
•
0：Press and hold the gun switch, Electromagnetic gas valve is turned on. The shielding gas starts to flow;
•
0～t1：
•
t1： Striking success, adjustment range of start current: 5~160A（200A）；
•
t2：Loosen the gun switch, the output current slopes up from start current; if the output pulse function is
turned on, the output current is pulsed;
•
t2～t3： Output current slopes up to the setting current value; adjustment range of up slope time 0~5.0S ;
•
t3～t4：Welding process. During this period, the gun switch is loosen;
•
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;
•
t4： Repress down the gun switch, the output current slopes down to crater current; if the output pulse
function is turned on, the slope down current is pulsed;
•
t4～t5：Down slope time, adjustment rang of down slope time: 0~5.0S;
•
t5～t6：Crater current holds time; adjustment range of crater current: 5~160A (200A);
•
t6： Loosen the gun switch, stop arc, and keep on argon flowing;
•
t6～t7：Post flow time, adjustment range of post flow time: 3.0～10.0S;
•
t7: Electromagnetic valve is closed and stop argon flowing. Welding is finished.
TIG short welding（2T）：
Welding current (peak
current) setting value
Base current setting
value
Press and hold the
welding gun switch
Introduction：
•
0：Press and hold the gun switch, Electromagnetic gas valve is turned on. The shielding gas starts to flow;
•
0～t1：
SMART 200 TIG PULSE
Start
current
Loosen the
switch
Striking success
t1 t2
t3
Pre flow time, adjustment range of pre flow time :0~1.0S;
I( A)
Striking
success
5A
t1 t2
0
Pre flow time, adjustment range of pre flow time :0~1.0S;
Repress down the
switch
Loosen the
Crater switch
current
Stop arc
t4 t5 t6
Loosen the
welding gun
switch
Stop arc
t3 t4
t7
t( s)
t5
t( s)
27