Arcoweld Arcostick MMA 160 Minespec, Руководство оператора

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SUMMARY
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2 Summary
2.1 Brief Introduction
Arcoweld MMA welders are general MMA arc welder which adopt the latest pulse width
modulation (PWM) technology and the insulated gate bipolar transistor (IGBT) power module. It
can change work frequency to medium frequency to replace the traditional hulking work
frequency transformer with the cabinet medium frequency transformer. Thus, it is characterized
with portable, small size, low consumption etc.
Arcoweld MMA’s excellent performances: 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, overheat, etc. Should a problem
occur an alarm on the front panel will light up and at the same time the output current will be
cut off. It can self-protect and prolong the using life and greatly improved the reliability and
practicability of the welders.
Arcoweld MMA welders can also realize TIG operation. In operation, if the electrode touches
workpiece over two seconds, the welding current will drop to the minimum current automatically
to protect the electrode. In TIG operation, the minimum current will be outputted firstly until the
arc is ignited by lifting method, the output current will rise to the preset value, which can protect
the electrode. At the same time, the arc force and hot start will be provided with MMA
operation.
MMA——Manual Metal Arc welding;
PWM——Pulse-Width Modulation;
IGBT——Insulation Gate Bipolar Transistor;
TIG——Tungsten Inert Gas welding.