The AWELCO TIG 210 AC/DC is an inverter AC/DC TIG welding machine with high-frequency arc ignition and PULSE inverter technology. It is designed for both TIG and MMA (Manual Metal Arc) welding processes. For MMA welding, it can handle rutile, basic, stainless steel, cellulosic, aluminum, and cast iron electrodes. In TIG LIFT mode, it is suitable for welding steel, stainless steel, aluminum, and copper.
Function Description
The machine's core function is to provide stable and controlled welding current for various materials. It features an inverter technology that allows for both AC (Alternating Current) and DC (Direct Current) welding, making it versatile for different applications. The high-frequency arc ignition in TIG mode ensures easy and reliable arc starting. The PULSE function, available in TIG AC and DC modes, is particularly useful for fine welding and working with thin materials, as it reduces heat input.
Important Technical Specifications
- Input Voltage: 1~230V, 50-60 Hz
- TIG Output: 210A at 35% duty cycle
- MMA Output: 160A at 35% duty cycle
- Dimensions (W x H x L): 500 x 455 x 235 mm
- Weight: 22 kg
- Compliance: IEC 60974-1:2017, IEC 60974-10:2014, LVD 2014/35/EU, EMC 2014/30/EU, RoHS II 2011/65/EU, RoHS II 2011/65/EU Annex II: Delegated Directive (EU) 2015/863.
Usage Features
The TIG 210 AC/DC offers a comprehensive control panel for precise parameter adjustment.
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Control Panel: Located on the front, it includes three knobs, selection keys, two displays, and multiple LEDs.
- Knobs:
- A (Welding Parameter Adjustment): Used for general parameter adjustments.
- B (AC Frequency): Adjusts AC frequency from 35 to 250 Hz for TIG AC welding. Lower frequencies create a wider arc with shallow penetration, while higher frequencies provide a more precise arc with deeper penetration.
- C (AC Balance): Controls the AC balance, influencing penetration depth by adjusting the positive and negative time of the current waveform.
- Selection Keys:
- 1, 2 (Welding Parameter Selection): Used to navigate and select parameters.
- 3 (Gas Pre-flow Time): Sets the gas flow duration before arc ignition (in tenths of a second).
- 4 (Start Current): Sets the initial welding current.
- 5 (Slope-up Time): Adjusts the time for the current to increase from the start current to the main welding current.
- 6 (Welding Current / Pulse Current): Sets the main welding current or pulse current in TIG pulse mode.
- 7 (Base Current / Second Current): Sets the base current in TIG pulse mode or the second current in 4T SPECIAL mode.
- 8 (Slope-down Time): Adjusts the time for the current to decrease from the main welding current to the end current.
- 9 (End Current): Sets the final welding current.
- 10 (Gas Post-flow Time): Sets the gas flow duration after arc extinction (in tenths of a second) to protect the cooling weld.
- 11 (Arc Ignition: HF / Lift Arc): Selects between high-frequency (HF) and Lift Arc ignition. Lift Arc is recommended in sensitive environments where HF might cause interference.
- 12 (Welding Mode: 2T / 4T / 4T with Second Current): Selects the torch trigger mode.
- 13 (Welding Process: TIG / MMA): Switches between TIG and MMA welding processes.
- 14 (Gas Test): Activates gas flow for adjustment.
- 24 (Program Memory Selection): Allows saving and recalling up to 9 sets of personal welding parameters.
- 25 (Current Type: AC, DC, Polarity Change): Selects AC or DC current and allows polarity inversion.
- 26 (AC Wave Shape): Adjusts the waveform in AC TIG welding.
- 27 (Pulsed Arc): Activates the PULSE function in TIG mode.
- 28 (Arc-force Adjustment): Adjusts the Arc Force in MMA mode.
- Displays: Two displays show set parameters (left) and measured welding current (right).
- LEDs: Indicate various statuses such as overload (15), power ON (16), remote control active (21), and pulsed arc (27).
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TIG AC Welding: Ideal for aluminum, magnesium, and their alloys. Allows adjustment of AC frequency and balance for fine-tuning arc characteristics and penetration.
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TIG 4T Mode: Eliminates the need to continuously hold the torch button. The button acts as a switch for arc ignition/extinction and for setting start/end currents.
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4T SPECIAL Mode: Similar to 4T, but allows changing the current between two preset values (main welding current and second current) during welding by tapping the torch button.
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MMA Welding: Supports various coated electrodes. Features Hot Start (17) for easier arc ignition and Arc Force (28) for improved penetration in difficult welding situations. VRD (Voltage Reduction Device) can be activated for safety.
Maintenance Features
- Thermal Protection: The machine is equipped with thermal protection (15 LED) that activates if the unit overheats, preventing further use until it cools down. The machine should remain switched on to allow the fan to continue running for faster cooling.
- Reset Function: Parameters can be reset to factory default settings by holding knob A for 8 seconds.
- Servicing: All maintenance operations should be performed by qualified personnel in compliance with IEC 60974-4.
- Troubleshooting Guide: The manual includes a table for common anomalies, their causes, and remedies, such as:
- Machine stopping due to overheating (wait for LED TERM to turn off).
- Tingling sensation during welding (check electrical ground system).
- No arc (check earth clamp and electrode holder connections, clean/replace electrode and gas nozzles).
- Incorrect welding (check polarity).
- Unstable arc in TIG (verify electrode type, reduce gas flow).
- Melting electrode in TIG (check polarity, ensure earth clamp is connected to "+").
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