Clarke MMA200A MMA (Arc) Welder Instruction Manual

August 9, 2024
Clarke

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Clarke MMA200A MMA (Arc) Welder

Clarke-MMA200A-MMA -Arc\)-Welder-product

Product Usage Instructions

  • Introduction
    • Thank you for purchasing the CLARKE MMA (Arc) Welder. To ensure safety and optimal performance, please read and follow the instructions carefully.
  • Principles of the Machine
    • MMA welding uses a coated consumable electrode to lay the weld.
    • It is versatile and primarily used for welding iron, steel, stainless steel, nickel, and copper. No additional welding torch kit is required.
  • Main Design Features
    • ARC-FORCE: Automatically increases current to prevent the electrode from sticking with a short arc length.
    • HOT START: Increases welding current at the beginning of the welding process.
    • ANTI-STICK: Allows easy withdrawal of the electrode without damage.
    • VOLTAGE REDUCTION SAFETY DEVICE (VRD): Reduces open circuit voltage when not in use to prevent accidental injury.

FAQs

  • Q: What are the general precautions for using the welder?
    • A: Always wear protective gear that complies with PPE regulations. Avoid welding in areas with solvent vapors or combustibles.
  • Q: How can I prevent fire and explosion risks?
    • A: Keep the equipment clean, and free of oil and grease. Avoid welding near combustibles and ensure the work area is free of potential fire hazards.

INTRODUCTION

  • Thank you for purchasing this CLARKE MMA (Arc) Welder. Before attempting to operate the machine it is essential that you read this manual thoroughly and carefully follow all instructions given.
  • In doing so you will ensure the safety of yourself and that of others around you, and you can also look forward to the welder giving you long and satisfactory service.
  • When unpacking, any damage or deficiency should be reported to your CLARKE dealer immediately.

PRINCIPLES OF THE MACHINE

  • MMA (Arc) welding uses a coated consumable electrode (stick) to lay the weld, therefore an additional welding torch kit is not required.
  • The arc melts the core of the electrode to produce drops of molten metal (weld pool) that cool to create the welded joint.
  • Because of the versatility and simplicity of MMA welding, it requires less skill and is used primarily to weld iron and steel including stainless steel. but nickel and copper can also be welded using this method.

MAIN DESIGN FEATURES

ARC-FORCE| automatically increases the current to prevent the electrode from sticking when operating with a short arc length.
---|---
HOT START| increases the welding current at the beginning of the welding process.
ANTI-STICK| the electrode can be easily withdrawn without becoming damaged.
VOLTAGE REDUCTION SAFETY DEVICE (VRD)| reduces open circuit voltage when not in use to prevent accidental injury

INVENTORY

  • The items supplied include the following:
    • 1 x MMA Inverter Welder
    • 1 x Torch Cable with Electrode Holder
    • 1 x Earth Clamp & Cable
    • 1 x Combination Wire Brush / Hammer
    • 1 x Instruction Manual

SAFETY PRECAUTIONS FOR ALL TYPES OF WELDING

WARNING: AS WITH ALL MACHINERY, THERE ARE CERTAIN HAZARDS INVOLVED WITH THEIR OPERATION AND USE. EXERCISING RESPECT AND CAUTION WILL CONSIDERABLY LESSEN THE RISK OF PERSONAL INJURY. HOWEVER, IF NORMAL SAFETY PRECAUTIONS ARE OVERLOOKED, OR IGNORED, PERSONAL INJURY TO THE OPERATOR MAY RESULT. FAILURE TO FOLLOW THESE RULES MAY RESULT IN SERIOUS PERSONAL INJURY.

GENERAL PRECAUTIONS

BURN PREVENTION
Wear protective clothing – gauntlet gloves designed for use in welding, apron, and protective shoes. Button shirt collar and pocket flaps and wear cuffless trousers to avoid entry of sparks and slag. Wear helmet with safety goggles or glasses with side shields underneath, and appropriate filter lenses or plates (protected by clear glass). This is a MUST for welding (and chipping) to protect the eyes from radiant energy and spatter. Replace cover glass when broken, pitted, or spattered. Avoid oily greasy clothing. A spark may ignite them. Hot metal should never be handled without gloves. First aid facilities and a qualified first aid person should be available unless medical facilities are close by for immediate treatment of flash burns of the eyes and skin burns. Ear plugs should be worn when working overhead or in a confined space. A hard hat should be worn when others work overhead. Flammable hair preparations should not be used by persons intending to weld or cut.
NOTE: ALL protective wear incl. masks & head shields MUST comply with PPE Regulation (EU) 2016/425.

TOXIC FUME PREVENTION
Severe discomfort, illness or death can result from fumes, vapors, heat, or oxygen enrichment or depletion that welding (or cutting) may produce. Prevent them with adequate ventilation. NEVER ventilate with oxygen. Lead-, cadmium-, zinc-, mercury- and beryllium-, bearing materials, when welded (or cut) may produce harmful concentrations of toxic fumes. Adequate local exhaust ventilation must be used, or each person in the area as well as the operator must wear an air-supplied respirator. For beryllium, both must be used. Metals coated with or containing materials that emit toxic fumes should not be heated unless coating is removed from the work surface, the area is well-ventilated, or the operator wears an air-supplied respirator. Work in a confined space only while it is being force-ventilated and, if necessary while wearing an air-supplied respirator. Vapors from chlorinated solvents can be decomposed by the heat of the arc (or flame) to form PHOSGENE, a highly toxic gas, and other lung and eye-irritating products. The ultraviolet (radiant) energy of the arc can also decompose trichloroethylene and perchloroethylene vapors to form phosgene. DO NOT WELD where solvent vapors can be drawn into the welding atmosphere or where the radiant energy can penetrate to atmospheres containing even minute amounts of trichloroethylene or perchloroethylene.

FIRE AND EXPLOSION PREVENTION

The causes of fire and explosion are:

  1. Combustibles reached by the arc, flying sparks, hot slag or heated material;
  2. Short circuits.

BE AWARE that flying sparks or falling slag can pass through cracks, along pipes, through windows or doors, and wall or floor openings, out of sight of the goggled operator. To prevent fires and explosion: keep equipment clean and operable, free of oil, grease, and (in electrical parts) of metallic particles that can cause short circuits. If combustibles are in the area, DO NOT weld. Move the work if practicable, to an area free of combustibles. Avoid working in paint spray rooms, dip tanks, storage areas, and ventilators. If the work cannot be moved, move combustibles away from sparks and heat; or protect against ignition with suitable fire-resistant covers or shields. Walls, ceilings, and floors near work should be protected by heat-resistant covers or shields. Firewatcher must be standing by with suitable fire extinguishing equipment during and for some time after welding or cutting if:

  1. appreciable combustibles (including building construction) are within 10m.
  2. appreciable combustibles are further than 10m, but can be ignited by sparks.
  3. openings (concealed or visible) in floors or walls can expose combustibles to sparks.
  4. combustibles adjacent to walls, ceilings, roofs or metal partitions can be ignited by radiant or conducted heat. After work, check that the area is free of sparks, glowing embers and flames. An empty container that held combustibles or that can produce flammable or toxic vapors when heated must never be welded on or cut, unless the container has first been cleaned. This includes a thorough steam or caustic cleaning (or a solvent or water washing, depending on the combustible’s solubility) followed by purging and inerting with nitrogen or carbon dioxide, and using protective equipment. Water filling just below the working level may substitute for inserting. A container with unknown contents should be cleaned (see paragraph above). DO NOT depend on sense of smell or sight to determine if it is safe to weld or cut. Hollow castings or containers must be vented before welding as they can explode. In explosive atmospheres, NEVER weld or cut where the air may contain flammable dust, gas, or liquid vapours.

ELECTRIC ARC WELDING

Comply with the precautions in above and this section. Arc welding, properly done, is a safe process but a careless operator invites trouble. The equipment carries high currents at significant voltages. The arc is very bright and hot. Sparks fly, fumes rise, ultraviolet and infrared energy radiates and workpieces are hot. The wise operator avoids unnecessary risks and protects himself and others from accidents.

BURN PROTECTION

  • The welding arc is intense and visibly bright. It’s radiation can damage eyes, penetrate lightweight clothing, reflect from light-colored surfaces and burn the skin and eyes.
  • Skin burns resemble acute sunburn, those from gas-shielded arcs are more severe and painful.

DON’T GET BURNED! FOLLOW ALL SAFETY PRECAUTIONS! PROTECTIVE CLOTHING

  • Wear long-sleeved clothing (particularly for gas-shielded arc) in addition to gloves, aprons and strong shoes. As necessary, use additional protective clothing such as a leather jacket or sleeves, a flameproof apron, and fire-resistant leggings. Avoid outer garments of untreated cotton. Bare skin protection:
  • Wear dark substantial clothing, Button collars closed to protect the chest and neck, and button any pockets to prevent entry of sparks.

EYE AND HEAD PROTECTION

  • Protect eyes from exposure to arc. NEVER look at an electric arc without protection. Welding helmet or shield containing an appropriate filter plate (Please refer to the section ‘Welding Shield). Place over face before striking arc.
  • Protect the filter plate with a clear cover plate. A cracked or broken helmet or shield should NOT be worn; radiation can pass through to cause burns.
  • Cracked, broken, or loose filter plates must be replaced IMMEDIATELY. Replace the clear cover plate when broken, pitted, or spattered.
  • WE SUGGEST you wear flash goggles with side shields under the helmet, to give some protection to the eyes should the helmet not be lowered over the face before an arc is struck.
  • Looking at an arc momentarily with unprotected eyes (particularly high-intensity gas-shielded arc) can cause a retinal burn that may leave a permanent dark area in the field of vision.
  • Before welding whilst wearing contact lenses, seek advice from your optician.

PROTECTION OF NEARBY PERSONNEL

  • For production welding, a separate, well-vented room or enclosed bay is best.
  • In open areas, surround the operation with low reflective, non-combustible screens or panels. Allow for free air circulation, particularly at floor level.
  • Provide face shields for all persons who will be looking directly at the weld. Others working in the area should wear flash goggles. Before starting to weld, make sure that the screen or bay doors are closed.

TOXIC FUME PREVENTION

  • Comply with all precautions previously mentioned.
  • FIRE AND EXPLOSION PREVENTION
  • DO NOT overload arc welding equipment. It may overheat cables and cause a fire. Loose cable connections may overheat or flash and cause a fire. NEVER strike an arc on a cylinder or other pressure vessel. It creates a brittle area that can cause a violent rupture or lead to such a rupture later under rough handling.

SHOCK PREVENTION

  • Exposed live conductors or other bare metal in the welding circuit, or in unearthed, electrically-LIVE equipment can fatally shock a person whose body becomes a conductor. DO NOT STAND, SIT, LIE, LEAN ON, OR TOUCH a wet surface when welding, without suitable protection.
  • PROTECTION FOR WEARERS OF ELECTRONIC LIFE SUPPORT DEVICES (PACEMAKERS).
  • Magnetic fields from high currents can affect pacemaker operation. Persons wearing pacemakers should consult with their doctor before going near arc welding or spot welding operations.

PROTECTION AGAINST SHOCK

  • Keep your body and clothing dry. NEVER work in a damp area without adequate insulation against electric shock. Stay on a dry duckboard or rubber mat when dampness or sweat can not be avoided. Sweat, seawater, or moisture between the body and an electrically LIVE part – or earthed metal -reduces the body surface’s electrical resistance, enabling dangerous and possibly lethal currents to flow through the body.

EARTHING THE EQUIPMENT

  • When arc welding equipment is earthed according to the National Electrical Code and the workpiece is earthed, a voltage may exist between the electrode and any conducting object.
  • Examples of conducting objects include but are not limited to, buildings, electrical tools, work benches, welding power source cases, workpieces, etc.
  • NEVER touch the electrode or any metal object unless the welding power source is off. When installing, connect the frames of each unit such as the welding power source, control, work table, and water circulator to the building earth. Conductors must be adequate to carry earth currents safely.
  • Equipment made electrically LIVE by stray current may shock, possibly fatally. DO NOT EARTH to electrical conduit, or to a pipe carrying ANY gas or a flammable liquid such as oil or fuel.

CABLES

  • Frequently inspect cables for wear, cracks and damage. IMMEDIATELY REPLACE those with excessively worn or damaged insulation to avoid possibly lethal shock from bared cable. Cables with damaged areas may be taped to give resistance equivalent to the original cable. Keep cable dry, free of oil and grease and protected from hot metal and sparks.

TERMINALS AND OTHER EXPOSED PARTS

  • Terminals and other exposed parts of electrical units should have insulating covers secured before operation.

SAFETY DEVICES

  • Safety devices such as interlocks and circuit breakers should not be disconnected or shunted out. Before installation, inspection, or service of equipment, shut OFF all power and remove line fuses (or lock or red-tag switches) to prevent accidental turning ON of power. DO NOT open the power circuit or change polarity while welding.
  • If, in an emergency, it must be disconnected, guard against shock burns, or flash from switch arcing. Always shut OFF and disconnect all power to equipment. A power disconnect switch must be available near the welding power source.

PREPARATION OF THE WORKING AREA

  • The working area must be sufficiently spacious, not humid, and well-ventilated as to avoid any fumes that develop from the welding process and incidental material adhering to the pieces to be welded (oils, paints, tars…)  which may cause danger to the operator.
  • Avoid welding tanks which may contain flammable residuals.
  • WARNING: ELECTRIC SHOCK CAN BE FATAL. A PERSON QUALIFIED IN FIRST AID SHOULD ALWAYS BE PRESENT IN THE WORKING AREA. IF A PERSON IS UNCONSCIOUS AND ELECTRIC SHOCK IS SUSPECTED, DO NOT TOUCH THE PERSON IF HE OR SHE IS IN CONTACT WITH THE WELDER OR CABLES. DISCONNECT THE WELDER FROM THE POWER SOURCE AND THEN USE FIRST AID. DRY WOOD OR OTHER INSULATING MATERIAL CAN BE USED TO MOVE CABLES, IF NECESSARY, AWAY FROM THE PERSON.

ADDITIONAL PRECAUTIONS FOR MMA WELDING

  1. ALWAYS ensure that there is full free air circulating the outer casing of the machine and that the louvers are unobstructed.
  2. A welding arc can seriously damage your eyes. Both operator and spectators must ALWAYS use a proper welding face shield or helmet with suitable filter lenses. Proper gloves and working clothes should be worn at all times.
  3. ALWAYS remove all flammable materials from the welding area.
  4. NEVER remove any of the panels unless the machine is disconnected from the supply and NEVER use the machine with any of the panels removed.
  5. NEVER use or store in a damp environment. DO NOT EXPOSE TO RAIN.
  6. NEVER attempt any electrical or mechanical repair unless you are a qualified technician. If you have a problem with the machine contact your local CLARKE dealer.
  7. ALWAYS keep a fire extinguisher within easy reach (Dry Powder, C02 or BCF, NOT WATER).
  8. NEVER continue to weld, if, at any time, you feel even the smallest electric shock. Stop welding IMMEDIATELY and DO NOT attempt to use the machine until the fault is diagnosed and corrected.
  9. NEVER allow the earth cable or torch to become wrapped around the operator or any person in the vicinity.

A comprehensive range of CLARKE safety equipment for use when welding is available from your local dealer. Consideration should be given to shielding the supply cable of permanently installed welding equipment, in metallic conduit or equivalent. Shielding should be electrically continuous throughout its length. The shielding should be connected to the welding power source so that good electrical contact is maintained between the conduit and the welding power source enclosure. The welding equipment should be routinely maintained according to the manufacturer’s recommendations. All-access and service doors and covers should be closed and properly fastened when the welding equipment is in operation. The welding equipment should not be modified in any way except for those changes and adjustments covered in the manufacturer’s instructions. In particular, the spark gaps of arc striking and stabilizing devices should be adjusted and maintained according to the manufacturer’s recommendations.

SAFETY SYMBOLS

The following symbols may be displayed on the machine.

Clarke-MMA200A-MMA -Arc\)-Welder-fig- \(1\)

ELECTRICAL CONNECTION CONNECTING TO MAINS POWER

NOTE: This welder is earthed and must only be connected to the mains with an earth connection. DO NOT attempt to use it without one.

  • This welder is not supplied with a mains electrical plug because at full capacity it will draw far too much power for a normal domestic 230V mains plug and socket. This welder MUST NOT be fitted with a standard 13A UK plug.
  • A high current 230V mains socket or terminal must be installed by a qualified and accredited professional electrician. A 32A socket and plug conforming to IEC 60309 is recommended.
  • A non-socketed mains connection also requires a welder connection by a qualified and accredited professional electrician. However, a socketed connection is safer and is recommended so the welder can be safely isolated when necessary. If directly wired to the mains, a double pole, double throw isolator switch must be fitted.
  • The welder must be connected using a circuit protected by an RCD.
  • Please refer to the Specification for details of the maximum current required by this welder.
  • If in any doubt, DO NOT attempt to connect or use this welder until a professional electrician has been consulted.

ENVIRONMENTAL RECYCLING POLICY

  • Through the purchase of this product, the customer is taking on the obligation to deal with the WEEE per the WEEE regulations with the treatment, recycling & recovery, and environmentally sound disposal of the WEEE.
  • In effect, this means that this product must not be disposed of with general household waste. It must be disposed of according to the laws governing
  • Waste Electrical and Electronic Equipment (WEEE) at a recognized disposal facility.
  • If disposing of this product or any damaged components, do not dispose of them with general waste.
  • This product contains valuable raw materials. Metal products should be taken to your local civic amenity site for recycling of metal products.

MMA/ARC WELDING PREPARATION
To prepare the machine for ARC welding you must follow the procedure below.

  1. Making sure that the ON/OFF switch, located on the rear panel is in the OFF position, connect the welding leads as follows:
    • Work clamp leads to the (-) Negative terminal.
    • The welding rod holder leads to the (+) Positive terminal
  2. Select the appropriate welding rod and insert it into the welding rod holder.
    ROD DIAMETER| MATERIAL THICKNESS
    ---|---
    2.5 mm| 1.0 – 2.0 mm
    3.2 mm| 2.0 – 5.0 mm
    4.0 mm| 2.0 – 8.0 mm
  3. Attach the work clamp to the workpiece as close as possible to the area being welded. Clean with a wire brush where necessary to ensure the connection is as clean as possible.
  4. Switch ON using the switch located on the rear panel.
    • The display on the front panel will come on and show the current setting in amps.
    • If the machine stops at any time and the thermal overload indicator comes ON, the thermal overload device has intervened. Wait until the welder has cooled sufficiently (the thermal overload indicator goes out) before restarting work.
  5. Set the required current using the current selector.
    • With practice you will gain a feel for the correct current setting for different welding rod thicknesses.

VRD-VOLTAGE REDUCTION DEVICE

  • The VRD is a safety feature that It is also known as “Anti-shock”.
  • Its function is to lower the open circuit voltage across the output terminals to a safe 12V when the welder is not in use.
  • As soon as the welder is used (a load of 200 ohms or less is detected), the voltage will increase to the full output to enable welding to commence.
  • The “VRD” will only turn the output of the welder back to a reduced output state of 12 volts once the electrode Is removed from the workpiece or If the resistance across the output rises above 200 ohms.
  • If you wish to turn off this feature, set the VRD switch on the front panel to OFF. We recommend that you leave it switched ON.

STRIKING THE ARC – WELDING

  • WARNING: WHEN WELDING ALWAYS ENSURE THERE IS ADEQUATE VENTILATION IN THE WORK AREA AS THE WELDING PROCESS GIVES OFF TOXIC FUMES.
  • WARNING: WELDING ARCS PRODUCE HARMFUL UV/IR LIGHT WHICH CAN SERIOUSLY DAMAGE YOUR EYES. ALWAYS USE A WELDING HELMET WITH A SUITABLE FILTER THAT CONFORMS TO CURRENT STANDARDS.
  • WARNING: NEVER LOOK AT THE ARC WITHOUT A SUITABLE WELDING MASK
  • WARNING: PROTECT BYSTANDERS BY USING WELDING SCREENS/ CURTAINS.

The most difficult aspect of the arc welding process, particularly for beginners, is that of striking an arc. We strongly recommend that you practice on some pieces of scrap metal to get the feel of the operation before you start on an actual welding job.

  1. Hold the electrode about 10 mm from the work and at an angle of about 70° to 80° to the work surface; take care not to accidentally touch the workpiece until you are ready to start.
  2. Holding the welding mask close-up to your face, give a short stroke with the electrode on the workpiece. As soon as the arc is primed, withdraw the electrode from the workpiece to leave a tiny gap of around 1.5mm (1/ 16”). The current will flow across the gap with a crackling noise and a brilliant arc. Continue to weld in one direction, maintaining the small gap as you go.
    • NOTE: When you prime the arc, be sure to withdraw the electrode swiftly to leave the 1.5 mm. gap, otherwise the electrode will weld itself to the workpiece. If this occurs give the electrode a short sharp jerk to free it and, if necessary, prime the arc again. If you cannot free the electrode, switch the machine off immediately and free it. Take care the electrode will get red hot very quickly and will be capable of burning through welding gloves.
  3. At the end of the run, just lift the electrode away from the workpiece.
  4. Inspect the job carefully. Any slag forming on the surface should be chipped away with a chipping hammer or pick. ALWAYS wear your safety goggles when chipping away slag.

WELDING PITFALLS

The arc welding technique is an acquired skill and requires considerable practice before perfect results are obtained. The diagrams below will help to explain the pitfalls in your technique and how to overcome them.

  • ARC TOO SHORT
    • This causes irregular masses of weld to be deposited, with slag contamination on an uneven surface.
  • ARC TOO LONG
    • This causes poor penetration resulting in a weak weld with excessive spatter and porosity. The surface of the weld is rough and the arc makes a hissing sound
  • ELECTRODE MOVED TOO SLOWLY
    • This causes a very wide and heavy deposit which overlaps at the sides. It is wasteful both in terms of time and electrode use.
  • ELECTRODE MOVED TOO QUICKLY
    • This causes poor penetration with a ‘stringy’ and incomplete weld deposit. The slag is very hard to remove.
  • CURRENT TOO LOW
    • This causes poor penetration and causes the electrode to stick to the workpiece too readily. Also results in a very irregular and high weld deposit. The slag is very hard to remove.
  • CURRENT TOO HIGH
    • This causes excessive penetration with spatter and deep pointed craters. It may also cause holes to be burned in the workpiece.
    • Burns electrodes very quickly.
  • THE PERFECT WELD
    • With the correct combination of arc length, current regulation, inclination, and speed of the electrode, you will, with practice, produce the perfect weld.
    • This should be regular with uniform ripples and no slag contamination. The arc will make a steady crackling sound.

TROUBLESHOOTING

DEFECT CAUSES SUGGESTIONS
Spark will not start Bad clamp connection. The inverter printed circuit is
defective. Check the clamp connection. Contact your nearest CLARKE dealer.
No output voltage Overheated machine (the red LED should be on). Wait for

the thermal cutout to be reset.
The internal relay has failed.| Contact your nearest CLARKE dealer.
The inverter printed circuit is defective.| Contact your nearest CLARKE dealer.
Wrong output current| The current selector control is defective.| Contact your nearest CLARKE dealer.
Low power supply voltage.| Check the mains distribution system.
Porosity of welds| The acid electrode on steel with high sulfur content. The electrode oscillates too much.

Workpieces are too far apart.

The workpiece being welded is cold.

| Use basic electrodes.

Move edges to be welded closer together. Move slowly at the beginning.

Cracks in weld| Material being welded is dirty (e.g.oil, paint, rust, oxides).

Not enough current.

| A clean workpiece before welding is an essential method of achieving neat weld beads.
Limited penetration| Low current, high welding rate, reversed polarity.

Electrode inclined in position opposite to its movement.

| Ensure operating parameters are regulated and improve the preparation of workpieces.
High Sprays| The electrode is too inclined.| Make appropriate corrections.
DEFECT| CAUSES| SUGGESTIONS
---|---|---
Profile defects| Welding parameters are incorrect.

The pass rate is not related to operating parameter requirements.

Electrode not inclined constantly while welding.

| Follow basic and general welding principles.
Arc is unstable| Insufficient current.| Check the condition of the electrode and earth wire connection.
Electrode melts obliquely| The electrode core is not centered.

Magnetic blow phenomenon.

| Replace electrode. Connect two earth wires to opposite sites of the workpiece.

MAINTENANCE

WARNING: DISCONNECT FROM MAINS BEFORE CLEANING.
WARNING: DO NOT ATTEMPT TO CARRY OUT REPAIRS YOURSELF, UNLESS YOU ARE FULLY COMPETENT, ALL WORK MUST BE CARRIED OUT BY A QUALIFIED TECHNICIAN.

The machine requires very little maintenance other than the following guidelines. Under normal working conditions removing the covers and cleaning with dry compressed air at reduced pressure once a year will be quite sufficient. Cleaning at more frequent intervals is advisable, however, if the unit is operating in a dusty and dirty environment.

  1. Keep the louvers clean to avoid a build-up of dirt and oxides inside the machine, which can reduce machine output.
  2. Check all cables periodically for condition and security. They must be in good condition and not cracked.
  3. Always avoid getting particles of metal inside the machine since they could cause short circuits.

ENVIRONMENTAL RECYCLING POLICY

  • Through the purchase of this product, the customer is taking on the obligation to deal with the WEEE per the WEEE regulations with the treatment, recycling & recovery, and environmentally sound disposal of the WEEE.
  • In effect, this means that this product must not be disposed of with general household waste. It must be disposed of according to the laws governing Waste Electrical and Electronic Equipment (WEEE) at a recognized disposal facility.

RATING PLATE

Clarke-MMA200A-MMA -Arc\)-Welder-fig- \(15\)

1 Name and address of the manufacturer 11 Duty Cycle Symbol
2 Model Number, / Part Number 12 Rated Welding Current Symbol
3 Serial / Batch Number 13 Conventional Load Voltage Symbol
4 Welding Power Source 14 Energy Supply Symbol
5 British Standards applied 15 Rated Supply Voltage
6 Welding Process Symbol 16 Rated Maximum Supply Current
7 This symbol indicates that the unit is suitable for carrying out welding
operations in an environment which has an increased risk of electric shock
17 Maximum Effective Supply Current
8 Welding Current Symbol 18

19

20

21

| N/A
9| Rated No-load Voltage| 22| Degree of Ingress Protection
10| Range Of Output| |

DUTY CYCLE

  • This welder is covered by regulations EN IEC 60974-1:2018+A1:2019 / EN 60974- 10:2014+A1:2015, where the Duty Cycle (X) is expressed as a percentage of time the machine may be used in a given period for a specified welding current.
  • i.e. When welding at 200 Amps the machine may be used for 6 minutes (60%) in any10 minute period,

SPECIFICATIONS

Unpacked Weight (kg) 5.05
Dimensions (l x w x h) (mm) 365 x 130 x 255
Power Supply 230V AC~ 50Hz
Rated Max Input Current (A) I1Max / I1eff (A) 39.2 / 30.4
No Load Voltage (V) 60
Max/Min Welding Current (A) 20A/200A
IP Rating IP21S
Suitable Electrodes (mm) 1.6 – 4.0

NOTE: The details and specifications contained herein, are correct at the time of going to print. However, CLARKE International reserves the right to change specifications at any time without prior notice.

GUARANTEE

  • This CLARKE product is guaranteed against faulty manufacture for 12 months from the date of purchase. Please keep your receipt as proof of purchase.
  • This guarantee is invalid if the product is found to have been abused or tampered with in any way, or not used for the purpose for which it was intended.
  • Faulty goods should be returned to their place of purchase, no product can be returned to us without prior permission. This guarantee does not affect your statutory rights.

CONSUMABLES

The following are some of the accessories available from your CLARKE dealer. Please quote the part numbers shown below.

DESCRIPTION PART NUMBER
1.6 mm Arc Welding Electrodes 3050590
2.5 mm Arc Welding Electrodes 3050584
3.2 mm Arc Welding Electrodes 3050586
4.0 mm Arc Welding Electrodes 3050588

ARC ACTIVATED HEADSHIELDS

These highly popular headshields activate instantly when the arc is struck and allow you to have both hands free when welding.

Model| Arc Activated| Grinding function| Solar Powered| Fixed Shade| Flip Up| Part Number
---|---|---|---|---|---|---
GWH4| ✔| ✔| ✔| | | 6000706
GWH7| ✔| ✔| ✔| | | 6000709
GWH5| ✔| ✔| ✔| | | 6000707
GWH6| ✔| ✔| ✔| | | 6000708
GWH3| ✔| ✔| ✔| | | 6000698
GWH2| ✔| ✔| ✔| | | 6000697
PG4| ✔| ✔| ✔| | | 6000716
HS1| | | | ✔| ✔| 6000700
HSF1| | | | ✔| ✔| 6000705

COMPONENT PARTS

Clarke-MMA200A-MMA -Arc\)-Welder-fig- \(16\)

NO DESCRIPTION NO DESCRIPTION
1 Front panel 16 Printed circuit board
2 Potentiometer 17 Capacitor
3 Indicator light 18 Silicon bridge radiator
4 Digital display 19 Silicon bridge
5 Plug 20 IGBT radiator
6 Gauge cover 21 IGBT
7 Handle 22 Main transformer
8 Cover 23 Rectifier radiator
9 Air Vent 24 Rectifier tube
10 Rear panel 25 Driver transformer
11 Machine base 26 Control PCB
12 Power switch 27 CBB
13 Waterproof joint 28 Positive connector
14 Power cable 29 Negative connector
15 Fan assembly 30 Relay

DECLARATIONS OF CONFORMITY

  • This is an important document and should be retained.
  • We hereby declare that this product(s) complies with the following statuary requirements):
  • Electromagnetic Compatibility Regulations 2016
  • Electrical Equipment (Safety) Regulations 2016
  • The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012

The following standards have been applied to the product(s):

  • EN 50445:2008, EN IEC 60974-1:2018+A1:2019, EN 60974-10:2014+A1:2015, EN 61000-3-11:2000,
  • EN 61000-3-12:2011, IEC 61000-4-2:2008, IEC 62321-1:2013, IEC 62321-2:2013, IC 62321-3-1:2013
  • EN 62321-3-2:2013, IEC 62321-4:2013+AMD1:2017, IEC 62321-5:2013, IEC 62321-6:2015,
  • EN 62321-7-1:2015, IEC 62321-7-2:2017, IEC 62321-8:2017.
  • The technical documentation required to demonstrate that the products) meets) the requirements) of the aforementioned legislation has been compiled and is available for inspection by the relevant enforcement authorities.
  • The UKCA mark was first applied in: 2021
    • Product Description: 200 Amp MMA Inverter Welder
    • Model number(s): MMA200A
    • Serial / batch Number: n/a
    • Date of Issue: 24/11/2021
    • Signed:
  • This is an important document and should be retained.
  • We hereby declare that this product(s) complies with the following directives):
    • 2014/30/EU Electromagnetic Compatibility Directive
    • 2014/35/EU Low Voltage Equipment Directive
    • 2011/65/EU Restriction of Hazardous substances
  • The following standards have been applied to the products):
    • EN 50445:2008, EN IEC 60974-1:2018+A1:2019, EN 60974-10:2014+A1:2015, EN 61000-3-11:2000,
    • EN 61000-3-12:2011, IEC 61000-4-2:2008, IEC 62321-1:2013, IEC 62321-2:2013, IEC 62321-3-1:2013
    • EN 62321-3-2:2013, IEC 62321-4:2013+AMD1:2017, 1EC 62321-5:2013, LEC 62321-6:2015,
    • EN 62321-7-1:2015, 1EC 62321-7-2:2017, 1EC 62321-8:2017.

The technical documentation required to demonstrate that the products) meets) the requirements) of the aforementioned directives) has been compiled and is available for inspection by the relevant enforcement authorities. The CE mark was first applied in: 2021

  • Product Description: 200 Amp MMA Inverter Welder
  • Model number(s):   MMA200A
  • Serial / batch Number: n/a
  • Date of Issue: 24/11/2021
  • Signed:

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