TIG Inverter PONTIG 3200 DC MOST
-18-
User manual
Version 1.1 of 22.01.2018 EN
Operation in 4-
stroke
mode
Figure 4: Operation in 4- stroke mode (with HF strike or by rubbing with the tip
of tungsten electrode.
In this mode, the first pressing and release of the trigger causes the start
of current welding I
start.
After release of the trigger, A1 current welding is
performed. In order to finish welding, press the trigger again. The current
will drop within the time T↓ to the value of I
stop
.
I
stop
current will be maintained so long as the torch trigger is pressed.
After the arc goes off, the gas gets out within the post-flow time set.
9.2 TIG welding with pulsating current
Set the operation mode _
___ diode is on (3).
Set the required parameters:
•
- gas flow time
•
I
start
–
starting current
•
T↑ –
current rising time
•
A1 - welding current
•
T1
–
I1 current time (range 0.0
–
10.0 seconds)
•
A2
–
basic current
•
T↓
–
welding current drop time
•
Istop
–
end current
•
I - gas postflow time
Available torch and strike operation modes
Welding with pulsating current is characterized by cyclical switching
between A1 and A2 current according to the times set.
This enables better control over the weld pool and it enables to weld thinner
elements.
