The Tetrix XQ 230 welder from EWM allows the user to choose from numerous TIG and MMA functions. Up to four pulse variants are available. The welder can be run directly from a single-phase 230 V power socket and is available in DC and AC/DC variants. Materials that can be welded include low- and high-alloy steels, aluminum and aluminum alloys, and nonferrous heavy metals and titanium. Users can choose between the Comfort 3.0 or new Expert 3.0 controls with a high-resolution 7-in. color display that shows the parameter settings and flow diagrams.