The Arc Machines Model 415 is designed to be a versatile welding automation control and power supply system. The standard Model 415 can be used to weld all alloys that are weldable with the Gas Tungsten Arc Welding process (GTAW, or TIG) using straight polarity DC current. The basic Model 415 features a complete complement of controls, water cooling and gas control necessary to operate all AMI orbital weld heads for in-place field welding tasks ranging from small diameter fusion tube welds to heavy-duty piping and vessels. All welding tasks are performed with the unparalleled level of precision and repeatability that have become a world-wide AMI trademark. The Arc Machines Model 415 Windows™ based power supply/controller features the absolute latest state-of-the-art technology, from its 400 ampere second-generation solid-state Thompson buck-converter power supply to its color VGA display with touch screen. The Model 415 is an extremely capable power supply that is very easy to operate. The heart of its flexibility is our emphasis on user-definability. Almost all function ranges and modes can be defined by the user to exactly match the welding head or fixture being used. These features include the ability to add up to 4 optional closed-loop motor servos and 8 optional open-loop motor manipulator controls that make it ideal for work-cell manufacturing environments or for use with custom welding heads having unique functions. Remote operation of the Model 415 requires a minimum of additional options. Most remote welding modes and controls such as lighting and video controls are included as standard equipment.