Kemppi MasterTig MLS 3000 ACDC Operating Manual

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Kemppi MasterTig MLS 3000 ACDC Operating Manual Manual pdf 12 page image

EN3. OperaTiOnNOTE! Welding in places presenting an immediate fire or explosion hazard is forbidden!NOTE! Welding fumes may cause injury, take care of sufficient ventilation during welding!3.1 welDing prOCesses3.1.1 MMa weldingWith Mastertig MLS™ ACDC power sources you can use almost all electrodes suitable for directand alternating current welding between current limits of the power source. Both functionpanels (ACS, ACX) can be used for electrode welding when MMA welding is selected.3.1.2 Tig welding alternating CurrentThe Mastertig ACDC MLS™ power sources are specially designed for TIG welding aluminiumwith alternating current (AC). We recommend using WC20 electrodes (grey) for AC welding.The table is only given as a guide.Welding current range AC Electrode Gas nozzle Gas flow ratemin. min. maks. WC20ø mm number ø mmArgonA A A l/min15 25 90 1.6 4 / 5 / 6 6.5 / 8.0 / 9.5 6...720 30 150 2.4 6 / 7 9.5 / 11.0 7...830 45 200 3.2 7 / 8 / 10 11.0 / 12.5 / 16 8...1040 60 350 4.0 10 / 11 16 / 17.5 10...12The table and the panel scale are based on the use of WC20 (grey).3.1.3 Tig welding with Direct CurrentDC welding is typically used when welding different grades of steel. We recommend usingWC20 electrodes (grey) for DC welding.A directive electrode selection table for DC welding.Welding current range DC Electrode Gas nozzle Gas flow rateWC20number ø mmArgonA ø mm l/min5...80 1.0 4/5 6.5 / 8.0 5...670...140 1.6 4 / 5 / 6 6.5 / 8.0 / 9.5 6...7140...230 2.4 6 / 7 9.5 / 11.0 7...8225...330 3.2 7 / 8 / 10 11.0 / 12.5 / 16 8...1010MasterTig MLS 3000, 3003 ACDC / © Kemppi Oy / 1112