MasterTig 235ACDC, 325DC, 335ACDCOperating manual - EN3.2 Operating control panels MTP23X and MTP33XMTP23X and MTP33X control panels include physical push buttons for the most common setup and adjustment fea-tures as well as a small digital display for showing the adjustment values and more in-depth settings.MTP23X control panel has only the DC current mode available, whereas MTP33X control panel includes both, AC andDC current modes.Controls:The MTP23X and MTP33X control panels are used with a control knob and with two function buttons in the bottomsection of the front cover as well as with dedicated push buttons on the panel itself. The control knob can beturned and used also as a push button according to the current selections. Settings and adjustment values areshown on the digital display embedded in the control panel.Control panel MTP33X on the left and control panel MTP23X on the right:1. Control knob• In home mode this adjusts the welding current (A)• Used to navigate within the control panel's embedded display and settings• When the green light is lit in the knob center, the knob also functions as a push button for selection2. Welding process selection button (left function button)• Switches between welding processes: TIG / MMA3. Welding mode selection button (right function button)• Switches between welding modes: Continuous / Spot / MicroTack4. MTP33X control panel only: Current mode selection button• Short press switches between current modes: AC / DC- / Mixed current (AC/DC-)• Long press switches to DC+ mode5. Ignition mode selection button• Switches between different ignition modes: Lift TIG / High frequency (HF) ignition© Kemppi 27/77 1920900 / 1939