SUMMARY
9
according to the actual circumstance.
Connect the work cable to the workpiece as close as possible to the area being welded.
Persons with heart-pacemaker should be away from the welding area.
2 SUMMARY
2.1 Brief Introduction
ArcoTig 250W/315W AC/DC welding machine adopts the latest pulse width modulation (PWM)
technology and insulated gate bipolar transistor (IGBT) power module, which can replace large
transformer type welders. Inverters are portable, small in size, light weight, with low power low
consumption.
The parameters of ARCOTIG HF 315 AC/DC on the front panel all can be adjusted continuously and
steplessly, such as start current, crater arc current, welding current, base current, duty ratio, upslope
time, downslope time, pre-gas, post-gas, pulse frequency, AC frequency, balance, hot start, arc force and
arc length etc. When welding, it uses high frequency and high voltage for arc ignition consistency.
ARCOTIG 3 CHARACTERISTICS
：
MCU control system, responds immediately to any changes.
High frequency and high voltage for arc igniting to ensure the success ratio of igniting arc, the
reverse polarity ignition ensures good ignition behavior in TIG-AC welding.
Avoid AC arc-break with special means, even if arc-break occurs the HF will keep the arc stable.
Pedal control the welding current.
TIG/DC operation,If the tungesten electrode touches the workpiece when welding, the current will
drop to short-circuit current to protect tungsten.
Intelligent protection: over-voltage, over-current, over-heat, when the problems listed before
occurred, the alarm lamp on the front panel will be on and the output current will be cut off. It can
self-protect and prolong the using life.
Double purposes: AC inverter TIG/MMA and DC inverter TIG/MMA, Excellent performance on
Al-alloy
、
carbon steel
、
stainless steel
、
titanium.
According to choosing the front panel functions, the following six processes are available-
