The ARC-125DS PRO is a stick welding machine designed for arc welding applications. It is a compact and portable inverter-based power source that utilizes single-phase input power to produce a constant current output, optimized for both Stick (SMAW) and Lift TIG (GTAW) welding processes.
Function Description:
The ARC-125DS PRO serves as a versatile welding power source, capable of performing two primary welding modes: Stick welding (SMAW) and Lift TIG welding (GTAW). It is equipped with a digital display and a value knob for precise control over welding parameters, allowing users to adjust amperage and other settings to suit various welding tasks. The machine also features a VRD (Voltage Reduction Device) function, which enhances safety, especially in humid environments, by reducing the open circuit voltage when the machine is idle. The "ARC FORCE" function helps maintain arc stability and control potential arcs, while the "HOT START" function increases the success rate of arc initiation, making it easier to start the arc.
Important Technical Specifications:
- Input Power: Single Phase, 110V ±10%, 50/60Hz.
- Input Current: Maximum 40A, Effective 25A.
- Rated Output (DC Only):
- At 110V, SMAW: 125A at 60% Duty Cycle (25V), 97A at 100% Duty Cycle (24V).
- Output Range:
- Open Circuit Voltage: 60V.
- Welding Current Range: 20A-125A.
- Welding Voltage Range: 10.8V-25V.
- Physical Dimensions:
- Length: 9.3 inches (235mm).
- Width: 3.7 inches (95mm).
- Depth: 5.1 inches (130mm).
- Weight: Approximately 4.4 lbs (2.0kg).
- Temperature Range:
- Operating: -10°C to +40°C (14°F to 104°F).
- Storage: -25°C to +55°C (-13°F to 131°F).
- Protection Rating: IP21S.
Usage Features:
The ARC-125DS PRO is designed for ease of use with several operational features:
- Welding Mode Button: Allows selection between Stick welding and Lift TIG welding modes.
- Parameter Button: Used to adjust specific parameters like "ARC FORCE" and "HOT START" levels.
- Digital Display: Provides clear readouts of selected parameters and welding amperage.
- VRD Button: Activates or deactivates the Voltage Reduction Device for enhanced safety.
- Value Knob: For precise adjustment of welding amperage and other parameter levels.
- Protection Indicator Light: Illuminates if the duty cycle is exceeded or the internal temperature rises above permitted levels, indicating the machine needs to cool down.
- Connectivity: Features positive and negative output terminals for connecting electrode holders and work clamps. For Lift TIG welding, a one-piece gas valve TIG Torch is required as the machine does not have a built-in gas solenoid.
- Workpiece Preparation: Emphasizes the importance of cleaning the workpiece by removing rust, greasy dirt, water, and paint before welding to ensure quality welds.
Maintenance Features:
Routine maintenance is crucial for the longevity and reliable operation of the ARC-125DS PRO.
- Safety Precautions: Always disconnect input power and allow the machine to sit for at least 5 minutes for capacitors to discharge before any internal maintenance. Only qualified personnel should perform installations and services.
- Input Filter Capacitor Discharge Procedure: The machine automatically discharges internal capacitors when powered off, but a 5-minute waiting period is recommended before servicing due to high internal voltages.
- Routine Maintenance Tasks:
- Regularly check cables and connections for integrity and replace if necessary.
- Clean the power source internally using low-pressure compressed air to remove dust and debris.
- Keep the external case clean with a soft dry cloth, paying particular attention to airflow inlet/outlet louvers.
- Troubleshooting Guide: The manual provides a comprehensive troubleshooting guide to help users identify and resolve common issues, categorized by symptoms and possible causes, with recommended courses of action. For persistent problems or if unsure about safe repair procedures, users are advised to contact YESWELDER support.
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