19 | P a g e
PATON
®
ADI 200 STANDARD TIG/MMA MIG/MAG
ATTENTION
!
Use a gated welding torch with a 13 mm bayonet
connector. Select the maximum current of the welding torch according to
the specifications.
4.2.2 OPERATIONAL CYCLE OF THE ARGON ARC WELDING PROCESS
WITH TIG-2T FUNCTION
The procedure for changing the values of the operational parameters of the welding unit is described in
Section 6.1.
4.2.3 TIG-2T CONTACTLESS ARC STARTING FUNCTION
This function of the control button on the welding torch. Welding unit contains a module for
contactless arc starting (an oscillator)
and an integrated gas supply valve.
When the control button of the welding torch is pressed, the control signal is generated and
transmitted to the controller of the welding unit. On this control signal, the gas supply valve will be
opened for purging the weld area with gas before welding, the welding unit will be switched on,
with delay, and a high-voltage pulse for the contactless arc starting will be generated. After these
operations, all the other functions, specified with consideration for the operational cycle of this
welding process, will be performed (see the sections presented below).
When the button is released, the welding current will decrease linearly, the welding unit will be
switched off, and the weld area will be purged with gas. After these operations, the gas supply valve
will be closed with delay.
