ESAB CIGWELD WeldSkill MicroArc 140 Operating Manual
  1. Manuals
  2. Brands
  3. ESAB Manuals
  4. Welding System
  5. CIGWELD WeldSkill MicroArc 140
  6. Operating manual

ESAB CIGWELD WeldSkill MicroArc 140 Operating Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
WeldSkill MicroArc 140
OPERATING MANUAL
WARRANTY*
OUTPUT CURRENT
OUTPUT CURRENT
STICK
WARRANTY*
1
2
DC
ELECTRODE
3.2mm MAX
Version No: AB | Issue Date: 26-03-2021
Manual No: 0-5592
|

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the CIGWELD WeldSkill MicroArc 140 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for ESAB CIGWELD WeldSkill MicroArc 140

Summary of Contents for ESAB CIGWELD WeldSkill MicroArc 140

  • Page 1 WeldSkill MicroArc 140 OPERATING MANUAL WARRANTY* OUTPUT CURRENT OUTPUT CURRENT STICK WARRANTY* ELECTRODE 3.2mm MAX Version No: AB | Issue Date: 26-03-2021 Manual No: 0-5592...
  • Page 2 YOU ARE IN GOOD COMPANY! The Brand of Choice for Contractors and Fabricators Worldwide. CIGWELD is a Market Leading Brand of Arc Welding Products for ESAB. We are a mainline supplier to major welding industry sectors in the Asia Pacific and emerging global markets including; Manufacturing, Construc- tion, Mining, Automotive, Engineering, Rural and DIY.
  • Page 3 While the information contained in this Manual represents the Manufacturer’s best judgement, the Manufacturer assumes no liability for its use. CIGWELD WeldSkill MicroArc 140 Welding Inverter Instruction Manual Number 0-5592 for: Part Number W1008162 Published by:...
  • Page 4 WeldSkill MicroArc 140 OPERATING MANUAL Be sure this information reaches the operator. You can get extra copies through your supplier. CAUTION These INSTRUCTIONS are for experienced operators. If you are not fully familiar with the principles of operation and safe practices for arc welding and cutting equipment, we urge you to read our booklet, “Precautions and Safe Practices for Arc Welding, Cutting, and Goug- ing,”...
  • Page 5 DECLARATION OF CONFORMITY According to AS/NZS 3820:2020, Essential Safety Requirements for Electrical Equipment Radiocommunications Labelling (Electromagnetic Compatibility) Notice 2017 Type of equipment Arc welding power source Type designation WeldSkill MicroArc 140 Brand name or trademark CIGWELD Manufacturer or his authorized representative established within the EEA Name, address, and telephone No: Cigweld Pty Ltd 71 Gower Street...

  • Page 6: Table Of Contents

    TABLE OF CONTENTS SECTION 1: ARC WELDING SAFETY INSTRUCTIONS AND WARNINGS ........1-1 1.01 Arc Welding Hazards ..................1-1 1.02 PRINCIPAL SAFETY STANDARDS ..............1-5 SECTION 2: INTRODUCTION ..................2-1 2.01 How To Use This Manual ................2-1 2.02 Equipment Identification ................. 2-1 2.03 Receipt Of Equipment ..................
  • Page 7 TABLE OF CONTENTS 5.18 The Cause of Distortion .................. 5-9 5.19 Overcoming Distortion Effects ................ 5-9 5.20 Welding Problems ..................5-11 SECTION 6: TIG (GTAW) WELDING ................6-1 6.01 Shielding Gas Regulator/Flowmeter Operating Instructions ......6-1 6.02 Setup For Lift TIG (GTAW) Welding ..............6-4 6.03 TIG (GTAW) Basic Welding Technique ............
  • Page 8 This Page Intentionally Blank...

  • Page 9: Arc Welding Safety Instructions And Warnings

    WeldSkill MicroArc 140 OPERATING MANUAL SECTION 1: ARC WELDING SAFETY INSTRUCTIONS AND WARNINGS WARNING PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH. KEEP CHILDREN AWAY. PACE- MAKER WEARERS KEEP AWAY UNTIL CONSULTING YOUR DOCTOR. DO NOT LOSE THESE INSTRUCTIONS. READ OPERATING/INSTRUCTION MANUAL BEFORE INSTALLING, OPERATING OR SERVICING THIS EQUIPMENT.
  • Page 10 WeldSkill MicroArc 140 OPERATING MANUAL 2. Wear approved safety glasses. Side shields WARNING recommended. ARC RAYS can burn eyes and skin; NOISE can damage hearing. 3. Use protective screens or barriers to protect others from flash and glare; warn others not to Arc rays from the welding process produce in- watch the arc.
  • Page 11 WeldSkill MicroArc 140 OPERATING MANUAL 4. Be alert that welding sparks and hot materials WARNING from welding can easily go through small cracks FUMES AND GASES can be hazardous to your and openings to adjacent areas. health. 5. Watch for fire, and keep a fire extinguisher Welding produces fumes and gases.
  • Page 12 WeldSkill MicroArc 140 OPERATING MANUAL 6. Turn face away from valve outlet when opening The following is a quotation from the General cylinder valve. Conclusions Section of the U.S. Congress, Office of Technology Assessment, Biological Effects of 7. Keep protective cap in place over valve except Power when cylinder is in use or connected for use.

  • Page 13: Principal Safety Standards

    WeldSkill MicroArc 140 OPERATING MANUAL 1.02 PRINCIPAL SAFETY STANDARDS Safety in welding and allied processes Part 1: Fire Precautions, AS 1674.1-1997 from SAI Global Limited, www.saiglobal.com. Safety in welding and allied processes Part 2: Electrical, AS 1674.2-2007 from SAI Global Limited, www. saiglobal.com.
  • Page 14 WeldSkill MicroArc 140 OPERATING MANUAL This Page Intentionally Blank GENERAL INFORMATION 0-5592...

  • Page 15: Introduction

    WeldSkill MicroArc 140 OPERATING MANUAL SECTION 2: INTRODUCTION 2.02 Equipment Identification 2.01 How To Use This Manual The unit’s identification number (specification or This Owners Manual only applies to the Part Numbers part number), model, and serial number usually ap- listed on page i.

  • Page 16: Symbol Chart

    WeldSkill MicroArc 140 OPERATING MANUAL 2.04 Symbol Chart Note that only some of these symbols will appear on your model. Voltage Input Single Phase Single Phase Static Frequency Converter- Wire Feed Function Transformer-Rectifier Wire Feed Towards Workpiece With Dangerous Voltage Three Phase Output Voltage Off.

  • Page 17: Description

    WeldSkill MicroArc 140 OPERATING MANUAL 2.05 Description 2.07 Packaged Item WeldSkill MicroArc 140 Inverter WeldSkill MicroArc 140 Inverter (Part No. W1008162) The MicroArc140 as the name suggests, is an ex- • WeldSkill MicroArc 140 Inverter Power Source tremely neat and compact welding inverter. Weighing •...

  • Page 18: Duty Cycle

    WeldSkill MicroArc 140 OPERATING MANUAL 2.09 Duty Cycle The rated duty cycle of a Welding Power Source, is a statement of the time it may be operated at its rated welding current output without exceeding the temperature limits of the insulation of the component parts. To explain the 10 minute duty cycle period the following example is used.

  • Page 19: Optional Accessories

    WeldSkill MicroArc 140 OPERATING MANUAL NOTE 4 Minimum Generator Recommendation at the Maximum Output Duty Cycle. Due to large variations in performance and specifications of different brands and types of generators, CIGWELD cannot guarantee full welding output power or duty cycle on every brand or type of generator. Some small generators incorporate low cost circuit breakers on their outputs.
  • Page 20 WeldSkill MicroArc 140 OPERATING MANUAL BG10N49/R Nozzle Alumina 8mm, for 17, 26 & 18 TIG Torches (pkt of 5) BG10N48/R Nozzle Alumina 10mm, for 17, 26 & 18 TIG Torches (pkt of 5) BG10N47/R Nozzle Alumina 11mm, for 17, 26 & 18 TIG Torches (pkt of 5) BG10N46/R Nozzle Alumina 12.5mm, for 17, 26 &...
  • Page 21 WeldSkill MicroArc 140 OPERATING MANUAL 646768 WeldSkill TIG Welding Gloves - Medium 646754 WeldSkill TIG Welding Gloves - Large 646769 WeldSkill TIG Welding Gloves - XL 646766 WeldSkill Heavy Duty Welding Gloves - Medium 646755 WeldSkill Heavy Duty Welding Gloves - Large 646767 WeldSkill Heavy Duty Welding Gloves –...
  • Page 22 WeldSkill MicroArc 140 OPERATING MANUAL This Page Intentionally Blank INTRODUCTION 0-5592...

  • Page 23: Installation

    WeldSkill MicroArc 140 OPERATING MANUAL SECTION 3: INSTALLATION 3.04 Mains Supply Voltage 3.01 Environment Requirements These units are designed for use in environments with increased hazard of electric shock. The Mains supply voltage should be within ± 10% of the rated Mains supply voltage. If actual Mains Supply A.

  • Page 24: Electromagnetic Compatibility

    WeldSkill MicroArc 140 OPERATING MANUAL 7. The time of day that welding or other activities 3.06 Electromagnetic Compatibility are to be carried out. WARNING 8. The immunity of other equipment in the en- Extra precautions for Electromagnetic Compat- vironment: the user shall ensure that other ibility may be required when this Welding Power equipment being used in the environment Source is used in a domestic situation.
  • Page 25 WeldSkill MicroArc 140 OPERATING MANUAL 4. Equipotential Bonding Bonding of all metallic components in the welding installation and adjacent to it should be considered. However. Metallic components bonded to the work piece will increase the risk that the operator could receive a shock by touching the metallic components and the electrode at the same time.
  • Page 26 WeldSkill MicroArc 140 OPERATING MANUAL This Page Intentionally Blank INSTALLATION 0-5592...

  • Page 27: Operation

    WeldSkill MicroArc 140 OPERATING MANUAL SECTION 4: OPERATION 4.01 Overview The MicroArc 140 Inverter machine is easy to use and versatile and is well suited for Manual Metal Arc Welding - MMAW (STICK) and Tungsten Inert Gas Welding (LIFT-TIG). The machine is lightweight & portable and can weld most types of metals - with the appropriate STICK electrodes or TIG Torch, Argon Gas and Filler Metals.
  • Page 28 WeldSkill MicroArc 140 OPERATING MANUAL In Stick mode only when depressed it displays the Hot Start and Arc Force settings. 4. Multifunction Control Knob The multifunction control knob is used to adjust welding current in Stick and Lift TIG mode. •...
  • Page 29 WeldSkill MicroArc 140 OPERATING MANUAL 11. Hot Start Feature (Not Shown) This feature operates in Stick (Manual Arc) mode. The Hot Start feature improves the arc start characteristics by momentarily increasing the welding current to a level above the preset amperage (Welding Current). The users can press the central knob to customize the Hot Start value ( H 0-10).
  • Page 30 WeldSkill MicroArc 140 OPERATING MANUAL This Page Intentionally Blank OPERATION 0-5592...

  • Page 31: Stick (Mmaw) Welding

    WeldSkill MicroArc 140 OPERATING MANUAL SECTION 5: STICK (MMAW) WELDING 5.01 Setup For STICK (MMAW) Welding A. Select Stick mode with the process selection control (refer to Section 4.02.8 for further information). B. Connect the Electrode Holder lead to the positive welding terminal (+). If in doubt, consult the electrode manufacturer.

  • Page 32: Arc Welding Electrodes

    WeldSkill MicroArc 140 OPERATING MANUAL 5.02 Arc Welding Electrodes Manual Metal Arc Welding electrodes consist of a core wire surrounded by a flux coating. The flux coating is applied to the core wire by an extrusion process. The coating on arc welding electrodes serves a number of purposes: A.

  • Page 33: Size Of Electrode

    WeldSkill MicroArc 140 OPERATING MANUAL CIGWELD Electrode Selection Chart Description Diameter Pack Part No. Application 2.5mm 2.5 kg 611702 High alloy stainless steel type for welding of unknown Weldall 3.2mm 2.5 kg 611703 steels, repair of die or tool steels and for joining dissimilar steels.

  • Page 34: Effects Of Arc Welding Various Materials

    WeldSkill MicroArc 140 OPERATING MANUAL 5.07 Effects of Arc Welding Various Materials A. High tensile and alloy steels The two most prominent effects of welding these Art # A-07687 steels are the formation of a hardened zone in the weld area, and, if suitable precautions are not taken, Figure 5-2: Flat position, down hand butt weld the occurrence in this zone of under-bead cracks may result.

  • Page 35: Joint Preparations

    WeldSkill MicroArc 140 OPERATING MANUAL Art # A-07694 Art# A-07693 Figure 5-8: Overhead position, butt weld Figure 5-9: Overhead position fillet, weld 5.10 Joint Preparations In many cases, it will be possible to weld steel sections without any special preparation. For heavier sections and for repair work on castings, etc., it will be necessary to cut or grind an angle between the pieces being joined to ensure proper penetration of the weld metal and to produce sound joints.

  • Page 36: Arc Welding Technique

    WeldSkill MicroArc 140 OPERATING MANUAL 5.11 Arc Welding Technique 20° Art # A-07696_AB A Word to Beginners For those who have not yet done any welding, the simplest way to commence is to run beads on a piece 1.6 mm (1/16”) of scrap plate.
  • Page 37 WeldSkill MicroArc 140 OPERATING MANUAL A. Butt Welds purpose to the backing run in securing proper fusion at the root of the weld. Set up two plates with their edges parallel, as shown in Figure 5-12, allowing 1.6mm to 2.4mm gap between B.
  • Page 38 WeldSkill MicroArc 140 OPERATING MANUAL C. Vertical Welds 1. Vertical Up Tack weld a three feet length of angle iron to your work bench in an upright position. Use a 3.2mm Ferrocraft 21 electrode and set the cur- rent at 100 amps. Make yourself comfortable on a seat in front of the job and strike the arc Art # A-07703 in the corner of the fillet.

  • Page 39: Distortion

    WeldSkill MicroArc 140 OPERATING MANUAL B. Expansion and Contraction of Parent Metal in the Art # A-07704 Fusion Zone: While welding is proceeding, a relatively small vol- ume of the adjacent plate material is heated to a very high temperature and attempts to expand in all directions.
  • Page 40 WeldSkill MicroArc 140 OPERATING MANUAL B. Distribution of Stresses Art # A-07709 Distortion may be reduced by selecting a welding sequence which will distribute the stresses suitably so that they tend to cancel each other out. See Figures 5-25 through 5-28 for various weld sequences. Choice of a suitable weld sequence is probably the most ef- fective method of overcoming distortion, although an unsuitable sequence may exaggerate it.

  • Page 41: Welding Problems

    WeldSkill MicroArc 140 OPERATING MANUAL 5.20 Welding Problems Description Possible Cause Remedy 1 Gas pockets or voids in weld metal A Electrodes are damp A Dry electrodes before use (Porosity) 　 　 B Welding current is too high B Reduce welding current 　...
  • Page 42 WeldSkill MicroArc 140 OPERATING MANUAL Description Possible Cause Remedy 4 Portions of the weld run do not fuse A Small electrodes used on A Use larger electrodes and to the surface of the metal or edge of heavy cold plate preheat the plate the joint 　...
  • Page 43 WeldSkill MicroArc 140 OPERATING MANUAL Description Possible Cause Remedy 5 A groove has been formed in the base A Welding current is too high. A Reduce welding current metal adjacent to the toe of a weld and has not been filled by the weld metal (undercut).
  • Page 44 WeldSkill MicroArc 140 OPERATING MANUAL Description Possible Cause Remedy 6 Non-metallic particles are trapped in A Non-metallic particles may A If bad undercut is present, the weld metal (slag inclusion) be trapped in undercut from clean slag out and cover previous run with a run from a smaller diameter electrode...

  • Page 45: Tig (Gtaw) Welding

    WeldSkill MicroArc 140 OPERATING MANUAL SECTION 6: TIG (GTAW) WELDING 6.01 Shielding Gas Regulator/Flowmeter Operating Instructions WARNING This equipment is designed for use with welding grade (Inert) shielding gases only. Shielding Gas Regulator/Flowmeter Safety This regulator/flowmeter is designed to reduce and control high pressure gas from a cylinder or pipeline to the working pressure required for the equipment using it.
  • Page 46 WeldSkill MicroArc 140 OPERATING MANUAL Installation 1. Remove cylinder valve plastic dust seal. Clean the cylinder valve outlet of impurities that may clog orifices and damage seats before connecting the regulator. Crack the valve (open then close) momentarily, pointing the outlet away from people and sources of ignition.
  • Page 47 WeldSkill MicroArc 140 OPERATING MANUAL 2. To reduce flow rate, allow the welding grade shielding gas to discharge from regulator by opening the downstream valve. Bleed welding grade shielding gas into a well ventilated area and away from any ignition source. Turn adjusting screw clockwise, until the required flow rate is indicated on the gauge. Close downstream valve.

  • Page 48: Setup For Lift Tig (Gtaw) Welding

    WeldSkill MicroArc 140 OPERATING MANUAL 6.02 Setup For Lift TIG (GTAW) Welding A. Select Lift TIG mode with the process selection control (refer to Section 4.02.8 for further information). B. Connect the TIG Torch to the negative welding terminal (-). Refer to Note below for Optional TIG Torch information.

  • Page 49: Tig (Gtaw) Basic Welding Technique

    WeldSkill MicroArc 140 OPERATING MANUAL 6.03 TIG (GTAW) Basic Welding Technique Gas Tungsten Arc Welding (GTAW) or TIG (Tungsten Inert Gas) as it is commonly referred to, is a weld- ing process in which fusion is produced by an electric arc that is established between a single tungsten (non-consumable) electrode and the work piece.
  • Page 50 WeldSkill MicroArc 140 OPERATING MANUAL Tungsten Electrode Types Electrode Type Welding Application Features Colour Code (Ground Finish) Excellent ignition characteristics and consistent welding properties. Long service life compared to Suitable for AC and 3T Rare Earth Thoriated Electrodes. Purple DC TIG welding Radioactive improve health and safety for operator and...

  • Page 51: Tig (Gtaw) Welding Problems

    WeldSkill MicroArc 140 OPERATING MANUAL 6.04 TIG (GTAW) Welding Problems FAULT CAUSE REMEDY 1 Excessive bead build up or Welding current is too Increase weld current and/or faulty joint poor penetration or poor preparation. fusion at edges of weld. 2 Weld bead too wide and Welding current is too Decrease weld current.
  • Page 52 WeldSkill MicroArc 140 OPERATING MANUAL FAULT CAUSE REMEDY 9 Arc start is not smooth. A Tungsten electrode A Select the right size tungsten electrode. is too large for the Refer to Table 6-1 on Page 6-5. welding current. B The wrong electrode B Select the right size tungsten electrode is being used for the type.

  • Page 53: Routine Service Requirements And Power Source Problems

    WeldSkill MicroArc 140 OPERATING MANUAL SECTION 7: ROUTINE SERVICE REQUIREMENTS AND POWER SOURCE PROBLEMS 7.02 Cleaning the Welding Power 7.01 Routine Maintenance & Source Inspection WARNING WARNING There are extremely dangerous voltage and There are extremely dangerous voltage and power levels present inside this product. Do power levels present inside this product.

  • Page 54: Welding Power Source Problems

    WeldSkill MicroArc 140 OPERATING MANUAL 7.04 Welding Power Source Problems Description Possible Cause Remedy The welding arc cannot be The Input Supply is not Ensure that the Input 　 established turned ON Supply is turned ON The Welding Power Source Switch the On/OFF switch is switched OFF Switch on rear of...

  • Page 55: Section 8: Key Spare Parts

    WeldSkill MicroArc 140 OPERATING MANUAL SECTION 8: KEY SPARE PARTS 8.01 Key Spare Parts Art # A-14679 Figure 8-1 WELDSKILL MICROARC 140 POWER SOURCE KEY SPARE PARTS ITEM PART NUMBER DESCRIPTION W7004560 PCBA Main Inverter PCB Board W7004561 PCBA Display PCB Board W7004562 PCBA EMC PCB Board W7004563...
  • Page 56 WeldSkill MicroArc 140 OPERATING MANUAL This Page Intentionally Blank KEY SPARE PARTS 0-5592...

  • Page 57: Appendix: Weldskill Microarc 140 Circuit Diagram

    WeldSkill MicroArc 140 OPERATING MANUAL APPENDIX: WELDSKILL MICROARC 140 CIRCUIT DIAGRAM 0-5592 APPENDIX...
  • Page 58 WeldSkill MicroArc 140 OPERATING MANUAL This Page Intentionally Blank APPENDIX 0-5592...

  • Page 59: Cigweld - Limited Warranty Terms

    OPERATING MANUAL CIGWELD - LIMITED WARRANTY TERMS LIMITED WARRANTY: CIGWELD Pty Ltd, An ESAB Brand, hereafter, “CIGWELD” warrants to customers of its autho- rized distributors hereafter “Purchaser” that its products will be free of defects in workmanship or material. Should...
  • Page 60 WeldSkill MicroArc 140 OPERATING MANUAL WARRANTY SCHEDULE – WELDSKILL MICROARC 140 INVERTER WARRANTY WARRANTY PERIOD – (Parts and Labour) WeldSkill MicroArc 140 Inverter Power Source 1 Year Electrode Holder Lead and Work Lead 3 Months CIGWELD Limited Warranty does not apply to; - Obsolete goods sold at auction, second-hand goods and prototype goods.
  • Page 61 WeldSkill MicroArc 140 OPERATING MANUAL This Page Intentionally Blank...
  • Page 62 CIGWELD Pty Ltd Singapore - Malaysia - Indonesia - CIGWELD An ESAB Brand ESAB Asia Pacific No 14 Jalan Teknologi 3/1 JI. Pulogadung No. 45 71 Gower Street, Preston VIC 3072 Australia 38 Joo Koon Circle Selangor Science Park 1...

Table of Contents