Kemppi MasterTig ACDC 3500W Operating Manual page 15

2
The down-slope time of the welding current
can be interrupted by quickly pressing the torch
switch.
2
You can go back to the welding current from the
down-slope current by pressing the torch switch
down. After that, the current will rise at a rate
corresponding to the down-slope time.
4-function (4T) / spark ignition
2 1 2 3 4
1. Press the torch switch down. The shielding gas starts
to flow.
2. Release the torch switch. The ignition spark ignites the
arc and the current will rise to the welding level
within the up-slope time.
3. Press the torch switch down. The welding continues.
4. Release the torch switch, and the current starts to drop
and after the selected down-slope time the arc is
broken. After this, the shielding gas will flow for
the time selected.
4-function (4T) / contact ignition
1 2 3
2
1. Press the electrode lightly against the work piece.
2. Press the torch switch down for a moment.
3. Lift the electrode slowly away from the work piece. The
arc will ignite and the welding current will rise to
the welding level within the up-slope time.
4. Press the torch switch down. The welding continues.
5. Release the torch switch, and the welding current will
drop and stop after the selected down-slope time.
After the arc is turned off, the shielding gas will
continue to flow for the post-gas time.
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© Kemppi Oy 2021
4 5
3.4.5 Adjustment of the down-slope time of the welding
MasterTig ACDC 3500W
By pressing the torch switch during the down-slope
time of the current, the current will remain at that level
as long as the switch is pressed down. After the release
of the switch, the current will drop further.
2
By pressing the switch down for a moment, you can
raise the welding current back to the welding level.
current
R01