Kemppi DC 2000 - Manual (Page 17)

Mastertig aC/DC 000, 500, 500W, 3500W/0701 – 17 © keMppi oy
2
2
15 s
coDe lock
2
2
5
1 3
4
4-function (4T) / contact ignition
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.
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.
By pressing the switch down for a moment, you can raise the welding
current back to the welding level.
3.4.5. Adjustment of the down-slope time of the welding current
The adjustment of the down-slope time is done from the poten-
tiometer. The time can be adjusted between 0 - 15 s. When you
adjust the down-slope time, you can see the time in seconds in
the right-hand numerical display. After 5 seconds, the display
will return to the start status.
3.4.6. Adjustment of the up-slope time of the welding current
1. Press the key next to the up-slope of the current pattern.
The right-hand numerical display will show the up-slope
time in seconds.
2. Select the desired value by turning the current knob
(0 - 5 s). 5 seconds after the adjustment, the displays will
return to show the set value of the current.
3.4.7. Adjustment of the pre-gas and post-gas times
1. Press the switch in the panel next to the gas bottle of the current model of either the pre-gas
or the post-gas.
2. Turn the current knob until the value that you want is shown in the right-hand display. (Pre-
gas 0 - 5 s, post-gas 3 - 100 s)
3.4.8. Adjustment of the form of the arc, BALANCE
The BALANCE function will adjust the balance so that it is suitable for the selected electrode
and current. At the same time, it adjusts the pre-heating of the tip of the electrode at the start
in accordance with the tip form selected.