This document is an operator manual for the Jasic Compact MIG inverter range of welding machines, specifically the MIG 200 Compact (JM-202C), MIG 250 Compact (JM-252C), and MIG 350 Compact (JM-352C).
Function Description
The Jasic Compact MIG inverter welding machines are integrated and portable power supply units designed for MIG/MAG, MMA, and (for the JM-352C) Lift TIG welding. They incorporate advanced IGBT inverter technology for efficient power electronics and a user-friendly interface for easy operation and adjustment. The unique electric structure and air channel design enhance heat dissipation, improving duty cycles and preventing damage to power devices and control circuits from dust, thereby increasing machine reliability. The machines feature a coherent streamline design with soft-textured front and rear panels and handles for comfortable handling.
Important Technical Specifications
The manual provides detailed technical specifications for each model:
Jasic MIG 202 (JM-202C):
- Rated input voltage: AC230V±15% 50/60Hz
- Rated input power: 8.8 KVA
- Rated input current Imax: 41 A
- Rated input current Ieff: 24 A
- Output voltage range: 11~26 V
- Welding current range: MIG 30~200 A, MMA 10~200 A
- No-load voltage: 52 V
- VRD OCV: N/A
- Wire feed range: 1.5~16 m/min
- Wire feed drive: 2 Roll
- Rated duty cycle (40°C): MIG 200A @ 35%, MMA 200A @ 35%
- Suitable wire size: 0.6~1.0 mm
- Wire spool size/weight: 300mm / 15Kg
- Spool gun compatible: Yes
- Efficiency: 81%
- Idle State Power: < 50 W
- Power factor: 0.7
- Standard: EN60974-1
- Protection class: IP21S
- Insulation class: F
- Noise: <70 db
- Temperature range: -10~+40 °C
- Storage temperature: -25~+55 °C
- Overall size: 900 x 450 x 755 mm
- Weight: 46 Kg
Jasic MIG 252C (JM-252C):
- Rated input voltage: AC230V±15% 50/60Hz
- Rated input power: 12 KVA
- Rated input current Imax: 48 A
- Rated input current Ieff: 28.41 A
- Output voltage range: 11~29 V
- Welding current range: MIG 30~250 A, MMA 10~220 A
- No-load voltage: 52 V
- VRD OCV: N/A
- Wire feed range: 1.5~16 m/min
- Wire feed drive: 2 Roll
- Rated duty cycle (40°C): MIG 250A @ 35%, MMA 220A @ 35%
- Suitable wire size: 0.8~1.0 mm
- Wire spool size/weight: 300mm / 15Kg
- Spool gun compatible: Yes
- Efficiency: 81%
- Idle State Power: < 50 W
- Power factor: 0.7
- Standard: EN60974-1
- Protection class: IP21S
- Insulation class: F
- Noise: <70 db
- Temperature range: -10~+40 °C
- Storage temperature: -25~+55 °C
- Overall size: 900 x 450 x 755 mm
- Weight: 48 Kg
Jasic MIG 352C (JM-352C):
- Rated input voltage: AC400V±15% 50/60Hz
- Rated input power: 15 KVA
- Rated input current Imax: 21.7 A
- Rated input current Ieff: 13.7 A
- Output voltage range: 15~38 V
- Welding current range: MIG 50~350 A, MMA 10~350 A
- No-load voltage: 62 V
- VRD OCV: <24 V
- Wire feed range: 1.5~15 m/min
- Wire feed drive: 4 Roll
- Rated duty cycle (40°C): MIG 350A @ 40%, MMA 350A @ 40%
- Suitable wire size: 0.6~1.2 mm
- Wire spool size/weight: 300mm / 15Kg
- Spool gun compatible: Yes
- Efficiency: 85%
- Idle State Power: < 50 W
- Power factor: 0.7
- Standard: EN60974-1
- Protection class: IP21S
- Insulation class: F
- Noise: <70 db
- Temperature range: -10~+40 °C
- Storage temperature: -25~+55 °C
- Overall size: 900 x 450 x 755 mm
- Weight: 52 Kg
Usage Features
The Jasic Compact MIG series offers a range of features designed for versatility and ease of use:
- Multi-process capability: MIG/MAG and MMA welding are available on all models. The JM-352C also includes Lift TIG functionality.
- Advanced Inverter Technology: Utilizes 40Khz IGBT inverter technology for stable current, low spatter, and good weld bead shape.
- Hot Start Arc Ignition (MMA): Ensures excellent and reliable arc starting.
- Self-adaptive Arc Force (MMA): Maintains optimum arc conditions even with long welding cables.
- VRD (Voltage Reduction Device): Inbuilt on the JM-352C for MMA and TIG modes, enhancing safety.
- Spool Gun Compatibility: All models are compatible with an optional spool gun (TSP-250-6) for specialized applications.
- Gas and Gasless MIG Welding: Designed for both types of MIG welding wires.
- Wire Inch and Burnback Adjustment: Features for precise wire feeding and control over wire stick-out after welding.
- Auto Compensation: Automatically adjusts for mains voltage fluctuations.
- User Interface: Equipped with digital ammeter and voltmeter, wire speed control, voltage control, and mode selectors for MIG/MMA/TIG and standard/spool gun. The JM-352C also includes an inductance control for more precise MIG output.
- Output Terminals: Clearly marked "+" and "-" terminals for connecting welding leads.
- Wire Feeder: Includes a wire spool holder and tensioner for 15Kg (300mm dia) reels, drive assembly feed motor and gearbox, drive roll tensioner, pressure roll assembly, wire feed roller and retaining nut, inlet wire guide, and outlet feed adaptor. The JM-202C and JM-252C have 2-roll drive systems, while the JM-352C has a 4-roll drive system.
- Rear Panel: Features mains switch, input cable, gas inlet, and cooling fan guard.
- Safety Features: Overheating LED indicator, and general safety instructions covering electrical safety, PPE, fume and gas risks, fire risks, working environment, moving parts, magnetic fields, and compressed gas cylinders.
Maintenance Features
The manual outlines a maintenance schedule to ensure efficient and safe operation, reduce faults, and prolong the service life of the machine:
- Daily Examination:
- Check the condition of the machine, mains cables, welding cables, and connections.
- Check for any warning LEDs and machine operation.
- Monthly Examination:
- Disconnect from mains supply and wait 5 minutes before removing the cover.
- Check internal connections and tighten if required.
- Clean the inside of the machine with a soft brush and vacuum cleaner, taking care not to damage components or cables.
- Ensure ventilation grills are clear.
- Carefully replace covers and test the unit.
- This work should be carried out by a suitably qualified competent person.
- Yearly Examination:
- Carry out an annual service, including a safety check in accordance with EN 60974-1.
- This work should be carried out by a suitably qualified competent person.
- Safety Precaution: Always ensure the power is disconnected and wait at least 5 minutes after switching off before opening the machine case.
- Troubleshooting Guide: Provides a comprehensive list of common faults, possible causes, and recommended actions to resolve issues such as power LED off, fault LED on, wire feed motor not rotating, reduced welding current, TIG electrode melting, no gas flow, difficulty igniting arc, hot electrode holder, excessive spatter, and wire continuing to feed.
- WEEE Disposal: Instructions for environmentally compatible recycling of electrical equipment at the end of its life, in compliance with European Directive 2012/19/EU and UK regulations.
- RoHS Compliance: Confirms the product's compliance with EU Directive 2011/65/EU and UK RoHS Regulations 2012 regarding restricted substances.
- UKCA and EC Declaration of Conformity: Statements confirming compliance with relevant UK and EU directives and standards (EN 60974-1, EN 60974-10).
- Warranty: A 5-year warranty against defects in materials or production, with specific exclusions and a 3-month warranty for consumables and accessories.
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