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Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

PRINCIPLES OF THE MACHINE

The TIG200 Multi is an AC/DC inverter type welding machine which adopts advanced

pulse width modulation (PWM) technology and insulated gate bipolar transistor

(IGBT) to convert the power frequency to intermediate frequency, thereby replacing

the bulky in the traditional arc welding machine with a small intermediate frequency

transformer.

The power frequency (low frequency) transformer gives the machine the advantages

of small size, light weight, low noise, low power consumption and convenient

portability. The welding machine is equipped with a digital panel, which has powerful

functions and a wide range of parameter adjustment.

TIG-200 can realize the following 5 welding methods through different combinations

of the front panel selection switches:

• DC Manual Arc welding (DC MMA) ●DC Argon Arc welding (DC TIG)

• AC TIG welding (AC TIG) ●Pulse TIG welding (Pulse TIG)

• AC Pulse TIG (AC Pulse TIG)

1. DC Manual Arc Welding can choose different polarity connections according to

different electrodes.

2. DC Argon Arc Welding generally adopts DC positive connection (workpiece

connected to positive electrode, welding torch connected to negative electrode),

which has the advantages of stable and concentrated arc, less damage to the

tungsten electrode, relatively large welding current, and narrow and deep welds.

3. AC Argon Arc Welding can be achieved by adjusting the front panel cleaning effect

knob to meet the needs of cleaning the oxide film, but also to obtain the largest

penetration and the smallest tungsten loss.

4. Pulse Argon Arc Welding uses a base current to maintain the ionization channel of

the main arc, and periodically adds a high peak pulse current of the same polarity to

generate a pulse arc to melt the metal and control the droplet transfer.

5. AC Pulse Argon Arc Welding means that the pulse mode and the AC mode are

mixed, and a more perfect welding process can be obtained.