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4.2 Control Panel
VOLT
DOWNSLOPE
ARC FORCE
In different welding modes, this knob has different
functions:
MMA
Adjusts the arc force, the range is 0~10
TIG
Adjusts the time of down slope
MIG
Adjusts the welding voltage, the range is 10~25V
4.3 Argon ARC Welding Operation
4.3.1 TIG Welding (4T Operation)
The start current and crater current can be pre-set. This function can compensate the possible crater that appears at the
beginning and end of welding. Therefore, 4T is suitable for the welding of medium thickness plates.
Pulsed TIG long welding (4T):
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: Striking success, adjustment range of start current 10~200A
• 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 0~10.0S
t( s)
0
I( A)
t1
switch
t5
Loosen the
t7
Striking success
Stop arc
t3
t4
t2
t6
switch
Loosen the
Welding current (peak
current) setting value
Base current setting
value
Start
current
Crater
Repress down the
switch
current
Press and hold the
welding gun switch
• t3~t4: Welding process. During this period, the gun switch is loosened
• t4: Repress down the gun switch, the output current slopes down to crater current
• t4~t5: Down slope time, adjustment range of down slope time: 0~10.0S
• t5~t6: Crater current holds time; adjustment range of crater current: 10~200A
• t6: Loosen the gun switch, stop arc, and keep on argon flowing
• t6~t7: Post flow time, adjustment range of post flow time: 1.0~10.0S
• t7: Electromagnetic valve is closed and argon flowing stopped. Welding is finished.
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