Kemppi MASTERTIG AC/DC 2000 Operation Instructions Manual

Also see for MASTERTIG AC/DC 2000: Service manual

Mastertig AC/DC 2000, 2500, 2500W, 3500W/0510 – 17© COPYRIGHT KEMPPI OY2215 sCODE LOCK2 2 51 3 44-function (4T) / contact ignition1. 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. Thearc will ignite and the welding current will rise to thewelding level within the up-slope time.4. Press the torch switch down. The welding continues.5. Release the torch switch, and the welding current willdrop and stop after the selected down-slope time. Afterthe arc is turned off, the shielding gas will continue toflow for the post-gas time.By pressing the torch switch during the down-slope time of the current, thecurrent will remain at that level as long as the switch is pressed down. Afterthe release of the switch, the current will drop further.By pressing the switch down for a moment, you can raise the weldingcurrent back to the welding level.3.4.5. Adjustment of the down-slope time of the welding currentThe adjustment of the down-slope time is done from the poten-tiometer. The time can be adjusted between 0 - 15 s. When youadjust the down-slope time, you can see the time in seconds inthe right-hand numerical display. After 5 seconds, the displaywill return to the start status.3.4.6. Adjustment of the up-slope time of the welding current1. Press the key next to the up-slope of the current pattern.The right-hand numerical display will show the up-slopetime in seconds.2. Select the desired value by turning the current knob(0 - 5 s). 5 seconds after the adjustment, the displays willreturn to show the set value of the current.3.4.7. Adjustment of the pre-gas and post-gas times1. Press the switch in the panel next to the gas bottle of the current model of either the pre-gasor 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, BALANCEThe BALANCE function will adjust the balance so that it is suitable for the selected electrodeand current. At the same time, it adjusts the pre-heating of the tip of the electrode at the startin accordance with the tip form selected.