UnoLiner-HELVI TP230 Three Torch Combi. Single-phase microprocessor-controlled welding unit. The perfect combination for all automotive body shop welding, MIG/MAG (manual, synergic or pulsed), TIG-DC (manual or pulsed) and electrode wedding. The HELVI TP230 Three Torch TIG DC features: Lift arc; continuous or pulsed welding; 2T/4T selection; Up/down slope adjustment; frequency and current levels in TIG pulsed welding; final current. Electrode features: anti-stick; adjustable hot start & arc force. Save custom welding settings; 2T/4T, spot function selection; pre-post gas adjustment; electronic inductance, soft start, b.b.t.(burn back time).