SUMMARY
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2 SUMMARY
2.1 Brief Introduction
ArcoTig HF200P 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, lightweight, with low power low consumption.
The parameters of the ArcoTig HF200P on the front panel 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, hot start and arc force etc. When welding, it
uses high frequency and high voltage for arc ignition consistency.
ArcoTig HF200P Characteristics
：
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The ZVS soft switch technology reduces the IGBT switching loss.
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DC Pulsed TIG and MMA, adopt IGBT and advanced PWM technology
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High performance MCU, Digital control, Digital display
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Preset all parameters with the hold process
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HF/Lift TIG, current down slope and up slope, gas post-flow, Pulse Frequency
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Intelligent protection: over-voltage, under-voltage, over-current, over-heat
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Reduced weight of the machine, improved mobility of the welder.
1. For MMA, polarity connection can be chosen according to different electrodes, please refer to
3.5
；
2. For DC TIG, DCEN is used normally (workpiece connected to positive polarity, while torch is
connected to positive polarity). This connection has many characters, such as stable welding arc, low
tungsten pole loss, more welding current, narrow and a deep weld;
3. DC Pulsed TIG has the following characters: 1) Pulse heating. Metal in Molten pool has a short
time on high temperature status and freezes quickly, which can reduce the chances of hot cracking of
the materials with thermal sensitivity. 2) The workpiece receives lower heat. Arc energy is focused. Is
suitable for thin sheet and super thin sheet welding. 3) Exactly controls heat input and the size of the
