Kemppi MLS 2300 ACDC Operating Manual

Also see for MasterTig MLS 2300 ACDC: Service manual

Contents

EN1. dynamics (“arc” –9 … 0 … +9)You will see the numerical value corresponding to the MMA dynamics in the display.Factory setting for all electrode types is zero. You can change the value by turning the pulsepotentiometer. If numerical value is adjusted negative (-1...-9) the arc is softened, and theamount of spatter decreases when welding at the upper end of the recommended currentrange of the electrode. On the positive side (1...9) the arc is rough.2. ignition pulse (Hot –9 … 0 … +9)You will see on the display the numerical value corresponding to the MMA hot start pulse. Youcan adjust the value by turning the potentiometer. A positive value corresponds to a morepowerful pulse, with zero being the default setting.2. Tig weldingSelect TIG welding by pressing the TIG button. You can change the current type bypressing the selection button again (AC, MIX, DC-, DC+). Selecting DC+ requires holdingdown the button. According to selected current mode you can adjust parametres byusing QUICK SETUP -funktion. Quit from QUICK SETUP -function by pressing QUICK SETUP-button. At the same time you can see recommended diameter for elektrode.aC Tig (alternating current Tig)Intended for welding aluminium. You can adjust, for example, the balance and frequencyof the alternating current with the QUICK SETUP and arrow buttons. The followingwelding parameters can be adjusted:1. balance (bal -50 … 0, factory setting –25%)A positive balance value breaks up aluminium oxide more effectively but heats theelectrode more than the workpiece (the tip blunts).A negative balance value increases heat generation and penetration in the base metal,while decreasing oxide break-up.If you wish to increase electrode temperature when welding with a blunt-headedelectrode, adjust the balance in the positive direction, and if you wish to decreaseelectrode temperature when welding with a sharp electrode, adjust the balancecorrespondingly in the negative direction.At the factory setting, the electrode tip remains almost sharp.A sharp electrode allows welding with a narrower arc, achieving a narrower weld anddeeper penetration than with a blunted electrode. Narrow welding is especially usefulwhen fillet welding.Welding with a blunted electrode produces a wide arc, which also widens the area ofoxide break-up. Application areas include repair welding and casting.2. Frequency (Fre 50 … 250 Hz, factory setting 60 Hz)Raising the frequency will make the arc slightly more stable and narrow, but it willincrease the noise caused by arc.3. selection of aC waveform, sine or square wave (sinus/square)The waveform affects the noise level and penetration of the arc. A sine waveformgenerates a lower noise level, while a square wave has better penetration (factory setting).4. Hot start time for the 2T function (H2t 0.1 s…5.0 s, factory setting 1 s)Pre-heating timer for the 2T switch function. The workpiece can be pre-heated (Hot Start)with both AC and DC currents. The time set here remains in effect for DC TIG current types.12MasterTig MLS 2300 ACDC / © Kemppi Oy / 1112