MAX ARC MAX-ARC 250 Operation Instructions Manual
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MAX ARC MAX-ARC 250 Operation Instructions Manual

Digital ac / dc tig welding machine
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OPERATION INSTRUCTIONS
D I G I T A L A C / D C T I G
W E L D I N G M A C H I N E
Used for the MAX-ARC 250 AC/DC, with input power of
220/230/240V,50/60HZ.

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Summary of Contents for MAX ARC MAX-ARC 250

  • Page 1 D I G I T A L A C / D C T I G W E L D I N G M A C H I N E Used for the MAX-ARC 250 AC/DC, with input power of 220/230/240V,50/60HZ.

  • Page 2: Table Of Contents

    CONTENT 1. SAFETY PRECAUTIONS 2. MAIN USAGE AND THE RANGE OF USAGE 3. OPERATION CONDITIONS AND WORK SURROUNDING 4. MAIN TECHNICAL SPECIFICATIONS 5. SKETCH MAPS OF THE PANELS 6. DESCRIPTION OF THE CONNECTIONS 7. SPECIAL FEATURES, DEFINITIONS & GLOSSARY 8. METHOD OF THE OPERATION 9.

  • Page 3: Safety Precautions

    1.SAFETY PRECAUTIONS WARNING PROPOSITION AND WARNINGS For Diesel Engines: Diesel engine exhaust and For Gasoline Engines: The engine exhaust from this product contains chemicals known to the State of some of its constituents are known to the State of California (USA) to cause cancer, birth defects,or California (USA) to cause cancer, birth defects, other reproductive harm.
  • Page 4 1.SAFETY PRECAUTIONS ELECTRIC AND MAGANETIC FIELDS MAY BE DANGEROUS 1) Electric Current flowing through any conductor causes localized Electric and Magnetic Fields (EMF). Welding Current creates EMF fields around welding cables and welding machines. 2) EMF fields may interfere with some pacemakers, and welders having a pacemaker should consult their physician before welding.
  • Page 5 1.SAFETY PRECAUTIONS 9)When working above floor level, use a safety belt to protect yourself from a fall should you get a shock. ARC RAYS CAN BURN 1)Use a shield with the proper filter and cover plates to protect your eyes from sparks and the rays of the arc when welding or observing open arc welding.
  • Page 6 1. SAFETY PRECAUTIONS 4)Do not heat, cut or weld tanks, drums or containers until the proper steps have been taken to insure that such procedures will not cause flammable or toxic vapors from substances inside. They can cause an explosion even though they have been "cleaned". For information, purchase "Recommended Safe Practices for the Preparation for Welding and Cutting of Containers and Piping That Have Held Hazardous Substances".
  • Page 7 1.SAFETY PRECAUTIONS 3)Ground the equipment in accordance with the U.S. National Electrical Code and the manufacturer's recommendations. ELECTROMAGNETIC DISTURBANCES MAY BE TRANSMITTED THROUGH H.F. ASSESSMENT OF AREA Before installing welding equipment the user shall make an assessment of potential electromagnetic problems in the surrounding area. The following shall be taken into account: 1）other supply cables, control cables, signaling and telephone cables;...
  • Page 8 1.SAFETY PRECAUTIONS emissions are received by other equipment, electrical interference may result. Electrical emissions may affect many kinds of electrical equipment; other nearby welding equipment, radio and TV reception, numerical controlled machines, telephone systems, computers, etc. Be aware that interference may result and extra precautions may be required when a welding power source is used in a domestic establishment.
  • Page 9 1.SAFETY PRECAUTIONS the operator must be insulated from all the earthed metal components. The equipotential connection must be made according to the national regulations. EARTHING THE WORKPIECE When the workpiece is not earthed for electrical safety reasons or due to its size and position, Care should be taken to prevent the earthing of the workpiece increasing the risk of injury to users, or damage to other electrical equipment.

  • Page 10: Main Usage And The Range Of Usage

    2.MAIN USAGE AND THE RANGE OF USAGE MAX-ARC 250 AC/DC TIG Welder is a triple functional machine used as MMA, AC TIG, DC TIG (PULSE TIG) Welder. All ferrous metals, copper, titanium, stainless steels, aluminum and alloyed materials can be used for full range of welding in all positions.

  • Page 11: Operation Conditions And Work Surrounding

    3. OPERATION CONDITIONS AND WORK SURROUNDING 1)Operating Conditions: √Voltage of power source: AC 220/230/240 V ±10% √Frequency: 50/60Hz √Reliable grounding protections 2)Work Surrounding: ▶Relative Humidity: not more than 90 %(average monthly temperature not more than 20℃). ▶Ambient Temperature: -10℃ ~ 40℃. ▶The welding place should not have harmful gas, chemicals, molds and inflammable matter, explosive and corrosive medium, and no big vibration and bump to the welder.

  • Page 12: Main Technical Specifications

    4.MAIN TECHNICAL SPECIFICATIONS Technical specifications Item No Max Arc 200 Max Arc 250 Rated Input Voltage 1PH ~ 230V +15% 1PH ~ 230V +15% Max. Load Power Capacity TIG: 4.5KVA TIG: 6.3KVA MMA: 5.6KVA MMA: 7.1KVA Rated Duty Cycle (40℃)60%...

  • Page 13: Sketch Maps Of The Panels

    5.SKETCH MAPS OF THE PANELS Panel & connections: Item Symbol Description Control Panel Output connectors Power Switch Input power cable: 1~ phase 220-240V, 50/60Hz. Gas input connector Ground/Earth connector...

  • Page 14: Description Of The Connections

    6.DESCRIPTION OF THE CONNECTIONS Item Symbol Description Gas Bottle power supply/phase 220~240V,50/60Hz Foot Pedal Connection socket, "+" welding current • TIG: Connection for workpiece lead • MMA: Electrode holder or workpiece lead connection Connection socket 5-pole: Standard TIG torch control lead Foot pedal control lead M16X1.5 ”...

  • Page 15: Special Features, Definitions & Glossary

    7.SPECIAL FEATURES, DEFINITIONS & GLOSSARY Special Features: Item Symbol Description MIX TIG: In a cycle time that mixed with EN/EP output (AC TIG) and EN output (DC TIG). Electrode Dia. selection Spot Welding Mode DC +/- converter output arc-starting of AC TIG process MIX TIG process. AC Wave Type MIX TIG mode for every pulse cycle.
  • Page 16 7.SPECIAL FEATURES ,DEFINITIONS & GLOSSARY Special Features: Item Symbol Description AC Wave Control System: AC Frequency Control AC Balance Control Independent AC Amperage Control Memory with capacity of 10 sets parameters.
  • Page 17 7.SPECIAL FEATURES, DEFINITIONS & GLOSSARY AC Waveshape Controls AC Frequency control Wider bead,good penetration ideal for buildup work Narrower bead for fillet welds Controls the width of the arc cone. and automated applications Increasing the AC Frequency provides a more focused arc with increased directional control.
  • Page 18 7.SPECIAL FEATURES, DEFINITIONS & GLOSSARY MIX TIG Control: Features of MIX TIG: The AC current can get a very good clearance, and DC current can get a deeper penetration. Use the MIX TIG we can get an excellent Arc MIX TIG Concentration, can be carried out the excellent welding performance from thin to thick plate.
  • Page 19 7.SPECIAL FEAURES, DEFINITIONS & GLOSSARY Definitions & Glossary Item Symbol Description Process Selection Tungsten Electrode Dia. From 2.0mm to >4.0mm Pulse ON/OFF selection. 2T/4T holding mode or Spot Welding mode selection...
  • Page 20 7.SPECIAL FEATURES, DEFINITIONS & GLOSSARY Definitions & Glossary Item Symbol Description DC +/- converter output arc-starting of AC TIG process MIX TIG process. Select the AC wave type: square wave or sine wave. MIX TIG adjusting MIX TIG: Pulse Frequency. MIX TIG:DC output time (DC Balance).
  • Page 21 7.SPECIAL FEATURES, DEFINITIONS & GLOSSARY Definitions & Glossary Item Symbol Description Gas pre-flow time (TIG) Absolute setting range 0.1 s to 5.0 s (0.1 s increments). Ignition current (TIG) Hotstart current (MMA) Percentage of the main current. Setting Percentage of the main current. Setting range 1 % to 100 % (1 % increments).
  • Page 22 7.SPECIAL FEATURES, DEFINITIONS & GLOSSARY Item Symbol Description Down-slope time (TIG) 0.00 s to 20.0 s (0.1 s increments). The down-slope time can be set separately for non-latched and latched. End-crater current (TIG) Setting range 1 % to 100 % (1 % increments). Percentage of the main current. Gas post-flow time (TIG) Setting ranges: 0.1 s to 20.0 s (0.1 s increments).

  • Page 23: Method Of The Operation

    8.METHOD OF THE OPERATION Operation: 1.1 MMA connection In the MMA process, regularly we have 2 connection method. But the most regular and ideal connection type is, Negtive output connector to Electrode holder and Positive output connector to Earth clamp. At such regular connection method we can get deep Penetration and soft Splash.
  • Page 24 8.METHOD OF THE OPERATION Operation: 1.2 MMA process Item Symbol Description Process selection switch: DC MMA. Main Current indicating lamp (AMP) on the face panel would be light. Adjust the Encoder switch to proset/change the welding current. Memory is availabe for all the process.
  • Page 25 8.METHOD OF THE OPERATION Operation: 2.1 TIG connection Item Symbol Description Welding torch Welding torch hose package Connection socket, "-" welding current Welding current lead connection for TIG welding torch Connection socket 5-pole: Standard TIG torch control lead Foot pedal control lead M16X1.5"...
  • Page 26 8.METHOD OF THE OPERATION Operation: 2.2 DC TIG process Item Symbol Description Select the welding process: DC TIG. Pulse ON/OFF selection. 2T/4T holding mode selection. Select and adjust the welding parameters. Used to connect the foot-pedal. Memory is available for all the process.
  • Page 27 8.METHOD OF THE OPERATION Operation: 2.3 AC TIG process Item Symbol Description Select the welding process: AC TIG. Select the Dia. of Tungsten Electrode. Pulse ON/OFF selection. 2T/4T holding mode selection. Arc-start position: DC+/DC-. Select the AC wave type: square wave or sine wave.
  • Page 28 8.METHOD OF THE OPERATION Operation: 2.3 AC TIG process Item Symbol Description Select and adjust the welding parameters. Push to select AC Freq./AC Balance/Independent EN/EP Amperage for adjusting. Used to connect the foot-pedal. Memory is available for all the process.
  • Page 29 8.METHOD OF THE OPERATION Operation: 2.4 MIX TIG process Item Symbol Description Select the welding process: AC TIG. Select the Dia. of Tungsten Electrode. 2T/4T holding mode selection. Arc-start position: DC+/DC-. Select to adjust:MIX TIG Pulse Freq.MIX TIG DC Balance. Select and adjust the welding parameters.
  • Page 30 8.METHOD OF THE OPERATION Operation: 2.4 MIX TIG process Item Symbol Description Memory is available for all the process.
  • Page 31 8. METHOD OF THE OPERATION Operation: 3.1 Memory MEMORY is available for all the MMA & TIG welding process. Recall the previous setting from Memory: Push to select the memory channel number. Push to recall/use the settings/parameters of this memory channel. Also it's available to adjust the parameters and re-store the settings into same memory channel or new channel.

  • Page 32: Maintenance

    9. MAINTENANCE In order to guarantee that arc welding machine works high-efficiently and in safety, it must be maintained regularly. Let customers understand the maintenance methods and means of arc welding machine more, enable customers to carry on simple examination and safeguarding by oneself, try one's best to reduce the fault rate and repair times of arc welding machine, so as to lengthen service life of arc welding machine.
  • Page 33 10. TROUBLES AND REFERENCE SOLUTIONS Before arc welding machines are dispatched from the factory, they have already been debugged accurately. So forbid anyone who is not authorized by our company to do any change to the equipment! Maintenance course must be operated carefully. If any wire becomes flexible or is misplaced, it maybe potential danger to user! Only professional maintenance personal who is authorized by our company could overhaul the machine! Guarantee to shut off the arc welding machine’s power before turn on the outline of the equipment!

  • Page 34: Troubles And Reference Solutions

    10.TROUBLES AND REFERENCE SOLUTIONS Troubles Reasons Solutions HF arc ignition device Change the HF arc damaged. ignition device. The arc is not stable in the The arc force is too small Increase the arc force welding process (MMA) Argon gas flow improperly Properly adjust the argon gas adjusted, or TIG torch damaged.

  • Page 35: Schematic Block Diagram

    11.SCHEMATIC BLOCK DIAGRAM...

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