Ross RXT250EX Instructions Manual
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Ross RXT250EX Instructions Manual

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Protect yourself and others by observing all safety information, warnings, and cautions. Failure to
comply with instructions could result in personal injury and/or damage to product or property.
Please retain instructions for future reference!
ROSSWELDING
RXT250EX

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Summary of Contents for Ross RXT250EX

  • Page 1 Protect yourself and others by observing all safety information, warnings, and cautions. Failure to comply with instructions could result in personal injury and/or damage to product or property. Please retain instructions for future reference! ROSSWELDING RXT250EX...

  • Page 2: General Description

    Ensure that these warnings are read and understood at all times. GENERAL DESCRIPTION A general purpose MIG /MMA welder for general purpose workshop use. The power source is an IGBT inverter. PRODUCT SPECIFICATION Item RXT250EX Input Power 230V Frequency 50Hz Phase No.
  • Page 3 WARNING! SAFETY INSTRUCTIONS The user of this welder is responsible for his own and the safety of others. It is most important to read, learn and respect the rules in this user guide. When using this welder, basic safety precautions, including the following, should be followed to reduce the risk of fire, electric shock and personal injury.

  • Page 4: Welding Cables

    SAFETY INSTRUCTIONS … cont DRESS PROPERLY Use protective gloves and fire resistant protective clothing when using the welder. Avoid exposing skin to the ultraviolet rays produced by the arc. ALWAYS USE THE WELDING MASK Under no circumstances should the welder be operated unless the welding mask is protecting the eyes and face.

  • Page 5: Welding Operations

    ADDITIONAL PRECAUTIONS WELDING OPERATIONS: In environments with increased risk of electric shock; In confined spaces; In the presence of flammable or explosive materials; MUST BE evaluated in advance by an “expert supervisor” and must always be carried out in the presence of other people trained to intervene in emergencies. POSITION and HANDLING Position the welding machine on a horizontal surface that is able to support the weight: otherwise (e.g.

  • Page 6: Warning Symbols

    WARNING! When using this welder, provide adequate ventilation or facilities for the removal of weld- ing fumes near the arc; a systematic approach is needed in evaluating the exposure limits for the welding fumes, which will depend on their composition, concentration and the length of the exposure itself.

  • Page 7: The Rating Plate

    THE RATING PLATE The rating plate is fitted to the welder and displays the following symbols and information. Mains supply, single phase Regulatory compliance mark. A.C. 50/60Hz Welding Modes Single phase input, frequency conversion, rectifier MIG/MMA Duty Cycle Welding Current I1max Maximum Input current Welding Voltage...

  • Page 8: Know Your Welder

    KNOW YOUR WELDER REAR PANEL Wire feed side...

  • Page 9: Mig Mode

    [1] Mode switch MIG /MMA [13] Welding current control (MMA MODE) [2] GREEN Power lamp [14] Mains input [3] ORANGE Alarm/ Temperature lamp [15] Power switch [4] GREEN VRD indicator (MMA mode) [16] Gas input. [5] 2 STEP / 4 STEP selector switch (MIG [17] ARC Characteristics MODE) [18] Burn Back control...
  • Page 10 POLARITY SELECTION • The correct polarity must be set for the type of welding. When using solid wire in conjunction with weld- ing gas, connect the torch to the positive ter- minal and the earth clamp to the negative. See diagram A.

  • Page 11: Wire Feeder

    THERMOSTATIC PROTECTION This welder is automatically protected from overheating by a thermal overload cut out protector. If the transformer overheats the overload cut out protector will activate and cut off. The amber light will illuminate to show that the cut out has operated. After cooling the protector will reconnect the supply circuit and the welder will be ready for fur- ther use.

  • Page 12: Mma (Arc) Welding

    GAS BOTTLE AND REGULATOR For gas shield welding connect the output of the regulator to the barb at the rear of the unit and secure. Welding gas Co2 or Co2/ Argon WARNING! - Secure the gas bottle MMA (ARC) WELDING Warning ! For MMA (ARC) welding.
  • Page 13 ARC WELDING PROCEDURE Before commencing, make sure that your hand held welding mask or welding helmet is in position to protect your eyes. It is also advisable to wear gloves and clothing, which cover the hands and arms to prevent flash burns. Striking Arc.

  • Page 14: Troubleshooting Guide

    TROUBLESHOOTING GUIDE Breakdown Analysis Solutions No current output No voltage input Check the fuse and or circuit breaker Wrong Fuse or break- Replace with correct er rating rating fuse or breaker Thermal over load Allow the unit to cool lamp lit Bad wire feed Low wire feed pres- Tighten the wire ten-...
  • Page 15 Notes...
  • Page 16 THE WHITE INTERNATIONAL policy is one of continuous improvement and the company reserves the right to the alter designs, colours and specifications without notice. For information on all ROSS products please visit: www.rosstools.com.au The ROSS logo and Bull device are trademarks of J.W. Ross Pty Ltd.

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