Tig Welding (2T Operation) - SanRex SANMIG 200MF Operator's Manual

⚫
t6～t7： Post flow time, adjustment range of post flow time: 0.1～10.0S;
⚫
t7： Electromagnetic valve is closed and stop argon flowing. Welding is finished.
§4.3.2 TIG welding (2T operation)
TIG short welding（2T） ：
I（A）
Welding current Is
The setting base
current Ib
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： Pre flow time, adjustment range of pre flow time :0.1~1.0S;
⚫
t1～t2： Striking success, the output current slopes up to the setting current from minimum
current (5A);
⚫
t2～t3： During the whole welding process, the gun switch is pressed and held without
releasing;
⚫
t3： Loosen the gun switch, the output current slopes down;
⚫
t3～t4： The output current slopes down to minimum current (5A), stop arc; adjustment
range of down slope time: 0~5S;
⚫
t4～t5： Post flow time, adjustment range of post flow time: 0.1～10.0S;
⚫
t5： Electromagnetic valve is closed and stop argon flowing. Welding is finished.
Short circuit protect function：
○ 1 TIG /DC/LIFT：If the tungesten electrode touches the workpiece when welding, the current
MAINTENANCE &TROUBLESHOOTING
Arc is
ignited
0
t1 t2
26
Loosen the
welding gun
switch
Arc is
turned off
t3 t4 t5
t（s）