LOKERMANN GRAND ARC 160 CEL, User Manual

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3
Brief
Introduction
Grand Arc series of welding machines adopt the latest Pulse Width Modulation
(PWM) technology and the Insulated Gate Bipolar Transistor (IGBT) power modules.
It uses switching frequencies in the 20KHz-50KHz ranges so as to replace the
traditional line-frequency transformer type welding machines. So, machines are
characterized with portability, small size, lightweight, low energy consumption and
noise, etc.
Grand Arc series of welding machines has excellent performance: constant current
output makes welding arc more stable; fast dynamic response speed reduces the
impact from the arc length fluctuation to the current; accurate stepless current
adjustment and pre-setting function. There are also some automatic protection
functions for under voltage, over current, over heat, etc. inside the welder, when
the problems listed before occurred, the alarm light on the front panel is on and at
the same time the output current will be cut off. It can self-protect, prolong the
usefull life, greatly improved the reliability and practicality of the welding machine.
Grand Arc series of welding machines can also realize TIG operation.
Grand Arc series of welding machines is widely used in Petroleum, chemical,
mechanical, shipbuilding, architecture, boiler, pressure container, military industry
and Maintenance work, etc. These machines have high duty cycle even in the
40
°
, which can keep the continuous operation.