TitanMig 250C MTS
TitanMig
250C MTS
OPERATING MANUAL
Operating manualEN
BrugsanvisningDA
GebrauchsanweisungDE
Manual de instruccionesES
KäyttöohjeFI
Manuel d’utilisationFR
Manualed’usoIT
GebruiksaanwijzingNL
BruksanvisningNO
InstrukcjaobsługiPL
Manual de utilizaçãoPT
BruksanvisningSV
操作手册 CN
English
TitanMig 250C MIG/TIG/Stick Welder
Model No.TM250CIssue. A 04/15
2
Welcome:
Thank you for your purchase of your new Weldtronic product. The Weldtronic product range provides
you with quality and reliability.
This product is supported by our extensive service network. In the unlikely event of a problem occurring
please call your local distributor.
Please record below the details from your product as these will be required for warranty purposes and to
ensure you get the correct information should you require assistance or spare parts.
Date purchased: ________________________________________________________________________
From where: ___________________________________________________________________________
Serial No: ____________________________________________________________________________
(The serial number will be located on the equipment data plate underneath or on the rear panel)
This Operating manual has been designed to instruct you on the correct use and operation of your
Weldtronic product. Information is a guide and we assume no liability for its use.
Please take the time to read the entire manual paying particular attention to the Safety Precautions. They
will help you to avoid potential hazards that may exist when working with this product.
2 Year Warranty Statement.
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This product is covered by a 2 Year Warranty Parts & Labour Warranty.
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This warranty does not cover freight or goods that have been interfered with.
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All goods in question must be repaired by an authorized repair agent as appointed by Weldtronic.
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Warranty does not cover abuse, misuse, accident, theft or general wear & tear.
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New product will not be supplied unless Weldtronic International P/L has inspected product
returned for warranty and agrees to replace the product.
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Product will only be replaced if repair is not possible.
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Warranty will be considered void if the 15 Amp primary power Input Plug is modified or replaced
to fit a domestic 10A primary power input Plug.
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Warranty will be considered void if the equipment is powered from an unsuitable engine driven
generator.
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Warranty will be considered void if no proof of purchase can be provided.
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Warranty will be considered void if this product has been altered, tampered or used in any
manner contrary to customary usage or application.
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Full warranty details and conditions supplied with this product are shown in the back of this
manual.
Contents
SAFETY PRECAUTIONS………………….………………………………………………………..…………1
1.1
Preface…………………………………………………………………………………………………11
1.2
1.3
1.4
1.5
1.6
1.7
General…………………………………………………………………………………………………11
Introduction………………………………………………………………….………………………12
Technical Specifications…………………………………………………………………..……13
Rating Label / Compliance Plate……………………………………………………………14
Overview of Power Source……………………………………………………………………15
Overview of Wire Feeder………………………………………………………………………16
2.0
Installation……………………………….…………………………………………………………17
3.0
3.1
3.2
3.3
Operation …………………………………………………………………………………………..19
GMAW (MIG) Welding…………………………………………………………………………20
MMAW (Stick) Welding…………………………………………………………………….…32
GTAW (TIG) Welding………………………………………………….……………………..…33
4.0
Trouble Shooting…………………………………………………………………………………34
4.1
4.2
4.3
4.4
Mig Trouble Shooting………………………………………………………………………….34
MMAW (Stick) Trouble Shooting…………………………………………………………36
GTAW (TIG) Trouble Shooting……………………………………………………………..37
Electrical Trouble Shooting………………………………………………………………...38
5.0
Maintenance…………………………………………………………………………………..….39
6.0
Warranty Terms & Conditions……………………………………………………………..40
4
SAFETY PRECAUTIONS – READ BEFORE USING
These general safety norms cover both arc welding machines and plasma cutting machines unless
otherwise noted.
The equipment must only be used for the purpose it was designed for. Using it in any other way could
result in damage or injury and in breach of the safety rules.Only suitably trained and competent persons
should use the equipment. Operators should respect the safety of other persons.
Prevention against electric shock
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The equipment should be installed by a qualified person and in accordance with current standards
in operation.It is the user’s responsibility to ensure that the equipment is connected to a suitable
power supply. Consult with your utility supplier if required.
If earth grounding of the work piece is required, ground it directly with a separate cable.
Do not use the equipment with the covers removed.
Do not touch live electrical parts or parts which are electrically charged.
Turn off all equipment when not in use.
Cables (both primary supply and welding) should be regularly checked for damage and
overheating. Do not use worn, damaged, under sized or poorly jointed cables.
Ensure that you wear the correct protective clothing, gloves, head and eye protection.
Insulate yourself from work and ground using dry insulating mats or covers big enough to prevent
any physical contact with the work ground.
Never touch the electrode if you are in contact with the work ground, or another electrode from
adifferent machine.
Do not wrap cables over your body.
Ensure that you take additional safety precautions when you are welding in electrically hazardous
conditions such as damp environments, wearing wet clothing, and metal structures. Try to avoid
welding in cramped or restricted positions.
Ensure that the equipment is well maintained. Repair or replace damaged or defective parts
immediately. Carry out any regular maintenance in accordance with the manufacturer’s
instructions.
Safety against fumes and welding gases
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Locate the equipment in a well-ventilated position.
Keep your head out of the fumes. Do not breathe the fumes.
Ensure the welding zone is in a well-ventilated area. If this is not possible provision should be
made for suitable fume extraction.
If ventilation is poor, wear an approved respirator. Read and understand the Material Safety Data
Sheets (MSDS’s) and the manufacturer’s instructions for metals, consumable, coatings, cleaners,
and de-greasers.
Do not weld in locations near any de-greasing, cleaning, or spraying operations. Be aware that
heat and rays of the arc can react with vapours to form highly toxic and irritating gases.
Do not weld on coated metals, unless the coating is removed from the weld area, the area is well
ventilated, and while wearing an air-supplied respirator. The coatings on many metals can give off
toxic fumes if welded.
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TitanMig AU 250C Manual_ Issue A 0415
Prevention against burns and radiation
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Arc rays from the welding process produce intense, visible and invisible (ultraviolet and infrared)
rays that can burn eyes and skin.
Wear an approved welding helmet fitted with a proper shade of filter lens to protect your face
and eyes when welding or watching
Wear approved safety glasses with side shields under your helmet.
Never use broken or faulty welding helmets.
Always ensure there are adequate protective screens or barriers to protect others from flash,
glare and sparks from the welding area. Ensure that there are adequate warnings that welding or
cutting is taking place.
Wear suitable protective flame resistant clothing.The sparks and spatter from welding, hot work
pieces, and hot equipment can cause fires and burns
Welding on closed containers, such as tanks, drums, or pipes, can cause them to explode.
Accidental contact of electrode to metal objects can cause arcs, explosion, overheating, or fire.
Check and be sure the area is safe and clear of inflammable material before carrying out any
welding.
Protection against noise
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Some welding and cutting operations may produce noise.
Wear safety ear protection to protect your hearing.
Protection from moving parts
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When the machine is in operation, keep away from moving parts such as motors and fans. Moving
parts, such as the fan, may cut fingers and hands and snag garments.
Protections and coverings may be removed for maintenance and controls only by qualified
personnel, after first disconnecting the power supply cable.
Replace the coverings and protections and close all doors when the intervention is finished, and
before starting the equipment.
Take care to avoid getting fingers trapped when loading and feeding wire during set up and
operation.
When feeding wire be careful to avoid pointing it at other people or toward your body.
Always ensure machine covers and protective devices are in operation.
Precautions against fire and explosion
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2
Avoid causing fires due to sparks and hot waste or molten metal
Ensure that appropriate fire safety devices are available near the cutting / welding area.
Remove all flammable and combustible materials from the cutting / welding zone and
surrounding areas
Do not cut/weld fuel and lubricant containers, even if empty. These must be carefully cleaned
before they can be cut/welded.
Always allow the cut/welded material to cool before touching it or placing it in contact with
combustible or flammable material.
Do not work in atmospheres with high concentrations of combustible fumes, flammable gases
and dust.
Always check the work area half an hour after cutting to make sure that no fires have begun
Risks due to magnetic fields
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The magnetic fields created by high currents may affect the operation of pacemakers or
electronically controlled medical equipment.
Wearers of vital electronic equipment should consult their physician before beginning any arc
welding, cutting, gouging or spot welding operations.
Do not go near welding equipment with any sensitive electronic equipment as the magnetic fields
may cause damage.
RF Declaration
Equipment that complies with directive 2004/108/EC concerning electromagnetic compatibility (EMC) and
the technical requirements of EN60974-10 is designed for use in industrial buildings and not those for
domestic use where electricity is provided via the low voltage public distribution system. Difficulties may
arise in assuring class A electromagnetic compatibility for systems installed in domestic locations due to
conducted and radiated emissions.
In the case of electromagnetic problems, it is the responsibility of the user to resolve the situation. It may
be necessary to shield the equipment and fit suitable filters on the mains supply.
LF Declaration
Consult the data plate on the equipment for the power supply requirements.
Due to the elevated absorbance of the primary current from the power supply network, high power
systems affect the quality of power provided by the network. Consequently, connection restrictions or
maximum impedance requirements permitted by the network at the public network connection point
must be applied to these systems.
In this case the installer or the user is responsible for ensuring the equipment can be connected,
consulting the electricity provider if necessary.
Materials and their disposal
The equipment is manufactured with materials, which do not contain any toxic or poisonous materials
dangerous to the operator.
When the equipment is scrapped, it should be dismantled separating components according to the type of
materials.
Do not dispose of the equipment with normal waste. The European Directive 2002/96/EC on Waste
Electrical and Electronic Equipment states the electrical equipment that has reached its end of life must be
collected separately and returned to an environmentally compatible recycling facility.
Handling of Compressed gas cylinders and regulators
All cylinders and pressure regulators used in welding operations should be handled with care.
Never allow the electrode, electrode holder or any other electrically “hot” parts to touch a cylinder.
Keep your head and face away from the cylinder valve outlet when opening the cylinder valve.
Always secure the cylinder safely.
Never deface or alter any cylinder
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TitanMig AU 250C Manual_ Issue A 0415
EMF Information
Considerations About Welding And The Effects Of Low Frequency Electric And Magnetic Fields Welding
current, as it flows through welding cables, will cause electro-magnetic fields. There has been and still is
some concern about such fields, However, after examining more than 500 studies spanning 17 years of
research, a special blue ribbon committee of the National Research Council concluded that: "The body
of evidence, in the committees judgment, has not demonstrated that exposure to power-frequency
electric and magnetic fields is a human-health hazard." However studies are still going forth and evidence
continues to be examined. Until the final conclusions of the research are reached, you may wish to
minimize your exposure to electromagnetic fields when welding or cutting.
To reduce magnetic fields in the workplace, use the following procedures:
 Keep cables close together by twisting or taping them.
 Arrange cables to one side and away from the operator.
 Do not coil or drape cables around your body.
 Keep welding power source and cables as far away from operator as practical.
 Connect work clamp to work piece as close to the weld as possible.
Limitations of warranty declaration regarding machine use
▲ The welding machine(s) described in this manual are designed exclusively for electrical arc welding
with shielding gases Argon, CO2 or Ar + CO2 mixture(s) employing MIG or MAG technology. Using
this machine for other purposes is not allowed. Using this machine in opposition with instructions
can put the welder in danger. Damage can occur to the welding machine if not operated according
to this manual. Failures and accidents due to such actions are not covered by warranty, nor can the
producer be held responsible
4
Symbol usage
Means Warning! Watch Out! There are possible hazards with this procedure! The possible
hazards are shown in the adjoining symbols.
▲ Marks a special safety message.
This group of symbols means Warning! Watch
Out! Possible ELECTRIC SHOCK, MOVING PARTS,
and HOT PARTS hazards.
Consult symbols and related instructions below for
necessary actions to avoid the hazards.
Arc Welding Hazards
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The symbols shown below are used throughout this manual to call attention to and identify
possible hazards. When you see the symbol, watch out, and follow the related instructions to avoid
the hazard. The safety information given below is only a summary of the more complete safety
information found in the Safety Standards. Read and follow all Safety Standards.
▲
Only qualified persons should install, operate, maintain, and repair this unit.
▲
During operation, keep everybody, especially children, away.
ELECTRIC SHOCK can kill.
Touching live electrical parts can cause fatal shocks or severe burns. The electrode and
work circuit is electrically live whenever the output is on. The input power circuit and
machine internal circuits are also live when power is on. In semi-automatic or automatic
wire welding, the wire, wire reel, drive roll housing, and all metal parts touching the
welding wire are electrically live. Incorrectly installed or improperly grounded equipment
is a hazard.
 Do not touch live electrical parts.
 Wear dry, hoIe-free insulating gloves and body protection.
 Insulate yourself from work and ground using dry insulating mats or covers big enough to prevent any
physical contact with the work or ground.
 Do not use AC output in damp areas, if movement is confined, or if there is a danger of falling.
 Use AC output ONLY if required for the welding process.
 If AC output is required, use remote output control if present on unit.
 Disconnect input power or stop engine before installing or servicing this equipment. Lockout/tagout input
power according to Safety Standards.
 Properly install and ground this equipment according to its Owner’s Manual and national, state, and local
codes.
 Always verify the supply ground — check and be sure that input power cord ground wire is properly
connected to ground terminal in disconnect box or that cord plug is connected to a properly grounded
receptacle outlet.
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TitanMig AU 250C Manual_ Issue A 0415
 When making input connections attach proper grounding conductor first - double-check connections.
 Frequently inspect input power cord for damage or bare wiring replace cord immediately if damaged —
bare wiring can kill.
 Turn off all equipment when not in use.
 Do not use worn, damaged, undersized, or poorly spliced cables.
 Do not drape cables over your body.
 If earth grounding of the work piece is required, ground it directly with a separate cable.
 Do not touch electrode if you are in contact with the work, ground, or another electrode from a different
machine.
 Use only WeII-maintained equipment. Repair or replace damaged parts at once. Maintain unit according to
manual.
 Wear a safety harness if working above floor level.
 Keep all panels and covers securely in place.
 Clamp work cable with good metal-to-metal contact to work piece or worktable as near the weld as
practical.
 Insulate work clamp when not connected to work piece to prevent contact with any metal object.
 Do not connect more than one electrode or work cable to any single weld output terminal.
▲ SIGNIFICANT DC VOLTAGE exists after removal of input power on inverters.
 Turn off inverter, disconnect input power, and discharge input capacitors according to instructions in
Maintenance Section before touching any parts.
FUMES AND GASES can be hazardous.
Welding produces fumes and gases. Breathing these fumes and gases can be hazardous
to your health.
 Keep your head out of the fumes. Do not breathe the fumes.
 If inside, ventilate the area and/or use exhaust at the arc to remove welding fumes and gases.
 If ventilation is poor use an approved air-supplied respirator.
 Read the Material Safety Data Sheets (MSDSs) and the manufacturers’ instructions for metals,
consumables, coatings, cleaners, and degreasers.
 Work in a confined space only if it is well ventilated, or while wearing an air-supplied respirator. Always
have a trained watch-person nearby. Welding fumes and gases can displace air and lower the oxygen level
causing injury or death. Be sure the breathing air is safe.
 Do not weld in locations near degreasing, cleaning, or spraying operations. The heat and rays of the arc can
react with vapours to form highly toxic and irritating gases.
 Do not weld on coated metals, such as galvanized, lead, or cadmium plated steel, unless the coating is
removed from the weld area, the area is well ventilated, and if necessary, while wearing an air-supplied
respirator. The coatings and any metals containing these elements can give off toxic fumes if welded.
6
ARC RAYS can burn eyes and skin.
Arc rays from the welding process produce intense visible and invisible (ultraviolet and
infrared) rays that can burn eyes and skin. Sparks fly off from the weld.
 Wear a welding helmet fitted with a proper shade of filler to protect your face and eyes when welding or
watching (see Safety Standards).
 Wear approved safety glasses with side shields under your helmet.
 Use protective screens or barriers to protect others from flash and glare; warn others not to watch the arc.
 Wear protective clothing made from durable, flame-resistant material (leather and wool) and foot
protection.
WELDING can cause fire or explosion.
Welding on closed containers, such as tanks, drums, or pipes, can cause them to blow
up. Sparks can fly off from the welding arc. The flying sparks, hot work piece, and hot
equipment can cause fires and burns. Accidental contact of electrode to metal objects
can cause sparks, explosion, overheating, or lure. Check and be sure the area is safe
before doing any welding.
 Protect yourself and others from flying sparks and hot metal.
 Do not weld where flying sparks can strike flammable material.
 Remove all flammables within 35 ft (10.7 m) of the welding arc. If this is not possible, tightly cover them
with approved covers.
 Be alert that welding sparks and hot materials from welding can easily go through small cracks and
openings to adjacent areas.
 Watch for fire, and keep a fire extinguisher nearby.
 Be aware that welding on a ceiling, floor, bulkhead, or partition can cause fire on the hidden side.
 Do not weld on closed containers such as tanks, drums, or pipes, unless they are properly prepared
according to Safety Standards.
 Connect work cable to the work as close to the welding area as practical to prevent welding current from
travelling long, possibly unknown paths and causing electric shock and fire hazards.
 Do not use welder to thaw frozen pipes.
 Remove stick electrode from holder or cut off welding wire at contact tip when not in use.
 Wear oil-free protective garments such as leather gloves, heavy shirt, cuff less trousers, high shoes, and a
cap.
 Remove any combustibles, such as butane lighter or matches, from your person before doing any welding.
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TitanMig AU 250C Manual_ Issue A 0415
FLYING METAL can injure eyes.
 Welding, chipping, wire brushing, and grinding cause sparks and flying metal. As
welds cool, they can throw off slag.
 Wear approved safety glasses with side shields even under your welding helmet.
BUILDUP OF GAS can injure or kill.
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Shut off shielding gas supply when not in use.
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Always ventilate confined spaces or use approved air-supplied respirator.
HOT PARTS can cause severe burns.
 Do not touch hot parts bare handed.
 Allow cooling period before working on gun or torch.
MAGNETIC FIELDS can affect pacemakers.
 Pacemaker wearers keep away.
 Wearers should consult their doctor before going near arc welding, gouging, or spot
welding operations.
NOISE can damage hearing.
Noise from some processes or equipment can damage hearing.
 Wear approved ear protection if noise level is high.
8
CYLINDERS can explode if damaged.
Shielding gas cylinders contain gas under high pressure. If damaged, a cylinder can
explode. Since gas cylinders are normally part of the welding process, be sure to treat
them carefully.
 Protect compressed gas cylinders from excessive heat, mechanical shocks, slag, open flames, sparks, and
arcs.
 Install cylinders in an upright position by securing to a stationary support or cylinder rack to prevent falling
or tipping.
 Keep cylinders away from any welding or other electrical circuits.
 Never drape a welding torch over a gas cylinder.
 Never allow a welding electrode to touch any cylinder.
 Never weld on a pressurized cylinder - explosion will result.
 Use only correct shielding gas cylinders, regulators, hoses, and fittings designed for the specific application:
maintain them and associated parts in good condition.
 Turn face away from valve outlet when opening cylinder valve.
 Keep protective cap in place over valve except when cylinder is in use or connected for us
FIRE OR EXPLOSION hazard.
 Do not install or place unit on, over, or near combustible surfaces.
 Do not install unit near flammables.
 Do not overload building wiring — be sure power supply system is properly sized, rated,
and protected to handle this unit.
FALLING UNIT can cause injury.
 Use lifting eye to lift unit only, NOT running gear, gas cylinders, or any other accessories.
 Use equipment of adequate capacity to lift and support unit.
 If using lift forks to move unit, be sure forks are long enough to extend beyond opposite
side of unit.
OVERUSE can cause OVERHEATING
 Allow cooling period; follow rated duty cycle.
 Reduce current or reduce duty cycle before starting to weld again.
 Do not block or filter airflow to unit.
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TitanMig AU 250C Manual_ Issue A 0415
STATIC (ESD) can damage PC boards.
 Put on grounded wrist strap BEFORE handling boards or parts.
 Use proper static-proof bags and boxes to store, move, or ship PC boards.
MOVING PARTS can cause injury.
 Keep away from moving parts.
 Keep away from pinch points such as drive rolls.
WELDING WIRE can cause injury.
 Do not press gun trigger until instructed to do so.
 Do not point gun toward any part or the body, other people, or any metal when
threading welding wire.
H.F. RADIATION can cause interference.
 High frequency (HF,) can interfere with radio, navigation, safety services, computers, and
communications equipment.
 Have only qualified persons familiar with electronic equipment perform this installation.
 The user is responsible for having a qualified electrician promptly correct any
interference problem resulting from the installation.
 If notified by the FCC about interference, stop using the equipment at once.
 Have the installation regularly checked and maintained.
 Keep high-frequency source doors and panels tightly shut. Keep spark gaps at correct setting, and use
grounding and shielding to minimize the possibility of interference.
ARC WELDING can cause interference.
 Electromagnetic energy can interfere with sensitive electronic equipment such as
computers and computer-driven equipment such as robots.
 Be sure all equipment in the welding area is electromagnetically compatible.
 To reduce possible interference, keep weld cables as short as possible, close together,
and down low, such as on the floor.
 Locate welding operation 100 meters from any sensitive electronic equipment.
 Be sure this welding machine is installed and grounded according to this manual.
 If interference still occurs, the user must take extra measures such as moving the welding machine, using
shielded cables, using line filters, or shielding the work area
10
1.0 Preface
1.1
General
Congratulations on choosing TitanMig 250C. Used correctly, our products can significantly increase
the productivity of your welding, and provide years of economical service.
This operating manual contains important information on the use, maintenance and safety of our
product. Please read the manual carefully before using the equipment for the first time.
For your own safety and that of your working environment, pay particular attention to the safety
instructions in the manual.
For more information on our products, contact us, consult an authorized dealer, or visit our website.
The specifications presented in this manual are subject to change without prior notice.
Important notes
Items in the manual that require particular attention in order to minimize damage and personal harm
are indicated with the ’NOTE!’ notation. Read these sections carefully and follow their instructions.
Disclaimer
While every effort has been made to ensure that the information contained in this guide is accurate
and complete, no liability can be accepted for any errors or omissions. We reserve the right to change
the specification of the product described at any time without prior notice.
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1.2
Introduction
The TitanMig250C MTS Compact power source is a MIG power sourcedesigned for demanding
professional use in Steels, Stainless, Cast Iron, Bronze, Aluminum, &copper welding.
The TitanMig 250C MTS power source is an inverter-based MIG Welding machine with added MMA and
TIG function. These are industrial machine equipped with a integrated 4 roll gear driven wire feeder.
The MIG function allows you to weld with Solid wires, Flux-cored Gas and Gasless wires.
The IGBT power device with unique control mode provides excellent reliability with a high duty cycle. The
system has a closed loop feedback control & constant voltage output, which allows it to operate with a
wide tolerance to mains fluctuations within +/-15%.
It has continuously adjustable welding voltage and current to provide excellent welding characteristics.
Adapting a unique welding dynamic characteristic control circuit in MIG, provides a stable arc, low spatter,
excellent weld appearance and high welding efficiency.
By removing the ball at the end of the wire after welding, a high no-load voltage, and slow wire feed at the
start presents exceptional arc starting.
This machine also has a very stable welding current in MMA , excellent arc ignition and can be used with a
variety of welding electrodes. Added MMA welding capability delivers easy and high quality welding using
electrodes, including cast Iron, stainless and low hydrogen.
Connection of the 17V or 26V TIG torch provides quality DC TIG (scratch start) welding of steel, stainless
steel and copper.
Features
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12
Innovative IGBT Inverter Technology
MIG/Mag with Gas and Gasless wire function
Stick Electrode (MMA) Function
DC TIG welding with scratch start
Burn Back Controls
Gas Check / Inch Wire
Integrated4 Roll Geared Wire Feeder
Euro Mig Torch Connection
LED Digital Display
Excellent arc stability for MIG/TIG/MMA welding with minimal spatter.
High Duty cycle
Spool gun interface
1.3
Technical Specifications
▲ Mig 250MTS Compact
Power Supply / Phases (V-Ph)
Duty [email protected]°c to AS/NZ60974
Output Current Range MIG
Output Current Range MMA
Rated Power MIG
Power factor
I Max MIG
MMA
I effMIG
MMA
Wire Feeder Type
Protection Class
Insulation Class
Dimensions Power Source (LxWxH)
Weight Power Source
(Excluding Trolley)
240V +/-15% 1 Phase
40% @ 250 Amps MIG
100% @ 158 Amps MMA
30A/15.5V - 250/26.5V
10A/20.4V - 250/33.0V
12.6 KVA
0.75
46.3 Amps
52.5 Amps
29.3 Amps
33.2 Amps
Gear Driven 4 Roll
IP 21S
F
685x295x560mm
38 Kg
General Information
▲ Do not operate or install this equipment without thoroughly reading this manual and the safety
precautions contained throughout.
 Save this manual and keep it handy for reference.
 Disconnect mains of the semi-automatic welding machine after finishing work or before a long break.
▲ DO NOT make any modifications to the machine. It may cause changes in the features and
deterioration of technical data.
▲ Any adaptations to this machine are prohibited and may void the warranty.
▲ Warranty is void if any damage to the machine is caused by misuse.
 Acceptable range of ambient temperature is from 10—40°C.
 Acceptable range of humidity is 20°C at 95% humidity.
 Specifications may change without previous notice.
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TitanMig AU 250C Manual_ Issue A 0415
1.4Rating Label / Compliance Plate
▲ Important Note on TitanMig
250MTS Input Power Supply
This unit has been supplied with
a downgraded 15 Amp primary
supply plug for commissioning
purposes only. You are advised to
upgrade the input power plug
and lead to a minimum of 32A if
sustained usage at maximum
amperage is desired.
▲ WARNING
With the 15A plug supplied it is
recommended that the operator
does not exceed more than
180Amps, as use of higher
amperages over this amount may
lead to failure and overheating of
the 15A plug and circuit, which
may result in electrical supply
component
damage
and
ultimately electrical fires.
▲ Fitted for commissioning
▲ Recommended outlet
14
1.5 Overview of machine
1 2 3
Front View
Power Source Front Panel Layout
1.Power LED
2. Overheating LED
3. VRD LED
4. Wire Inching Button
5. Voltage meter
6. Standard Mig / Spoolgun Switch
7. Voltage control knob in MIG
8. Current control knob in MMA
9. MMA/TIG/MIG switch
10. Current meter
11. Wire feed control knob in MIG
12. “-” output terminal
13. “+” output terminal
14. Socket of wire pull torch control cable
15. Euro connector of the welding torch in MIG
4
9
5
6
7
10
11
8
12
13
14
15
Rear View
16.
17.
18.
19.
20.
Rating Plate
Input cable
Power switch
Gas solenoid inlet fitting
Fan
Inside View
16
21. Burnback Knob
22. No Gas/Gas Socket
17
18
21
22
19
20
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TitanMig AU 250C Manual_ Issue A 0415
1.6 Overview of Drive System
HF10 Drive System
1.
2.
3.
4.
5.
6.
7.
8.
Drive Gear
Wire Feed Rollers
Pressure Rollers
Pressure Rocker Arm
Pressure Adjustment Screw
Feed Housing
Inlet Guide
Drive Motor
8
5
4
3
7
2
6
1
HF10 Spare Feed Rollers
Feed Roll Size & Type
Feed Roll 30/10/22 – 0.6/0.8mm Steel
Feed Roll 30/10/22 – 0.8/1.0mm Steel
Feed Roll 30/10/22 – 0.9/1.2mm Steel
Feed Roll 30/10/22 – 1.0/1.2mm Steel
Feed Roll 30/10/22 – 1.0/1.2mm Aluminum
Feed Roll 30/10/22 – 0.9/1.2mm Aluminum
Feed Roll 30/10/22 – 0.9/1.2mm Flux Cored
Feed Roll 30/10/22 – 1.2/1.6mm Flux Cored
16
Part Number
FR3022V0608
FR3022V0810
FR3022V0912
FR3022V1012
FR3022U1012
FR3022U0912
FR3022K0912
FR3022K1216
2.0 Installation
Worker and working area protection
Fumes and gases produced by welding are dangerous for your health. Ventilation in workplace must be
adequate to remove all harmful fumes and gases but not too strong since it could remove the shielding
gas flowing over work piece. Arc welding rays are dangerous for your eyes. The welder must always use a
welding helmet with a minimum protective shade glass No. 10 for MIG Welding. All personal protective
including working clothes, leather apron, gloves, etc. must always be worn when welding or handling the
work piece.
Unpacking
Check the packaging for any signs of damage.Carefully remove the machine and retain the packaging until
the installation is complete.
Positioning of the machine
Place the machine on a firm, dry and level surface. Where possible, do not allow dust or other impurities
to enter the machines cooling air flow. Preferably site the machine above floor level; for example on a
suitable carriage unit.
Notes for positioning the machine
 The surface inclination should not exceed 15 degrees.
 Ensure the free circulation of the cooling air. There must be at least 20 cm of free space in front
ofand behind the machine for cooling air to circulate.
 Protect the machine against heavy rain and direct sunshine.
NOTE! The machine should not be operated in the rain as the protection class of the machine, IP21S,
allows for outside preserving and storage only.
NOTE! Never aim metallic grinding spray/sparks towards the equipment.
Input connection
Before connecting the machine you should ensure that the correct supply is available. Details of the
machine requirements can be found on the data plate of the machine or in the technical parameters
shown in the manual.
The equipment should be connected by a suitably qualified competent person. Always ensure the
equipment has a proper grounding.
Never connect the machine to the mains supply with the panels removed.
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TitanMig AU 250C Manual_ Issue A 0415
Mains supply – 250 MTS Only
The INPUT primary cable is supplied with machine. Connect the machine to mains
according to your state legislation of where machine is being used. Connection can
be effected through plug or direct wiring. Supply system should be protected at all
times by the fuse stated in technical data section. Direct connection to mains can
be done by qualified electrical technician only.
Australian 240V Single Phase Plug variants – AS/NZS 3122
DO NOT USE
FITTED FOR COMMISSION
RECOMMEDED TYPE
Output connections
Electrode polarity
 In general when using the machine for MMAW (Stick) the electrode holder is connected to the
positive (+) terminal and the work return to the negative (-) terminal.
 In general when using the machine for GMAW (Mig) the MIG Torch should be connected to the
positive (+) terminal (Euro Connector) and the work return to the negative (-) terminal.
 In general when using the machine Gasless Mig the Mig Torch should be connected to the
negative (-) terminal (Euro Connector) and the work return to the positive (+) terminal.
 When using the machine for GTAW (TIG) welding the TIG torch should be connected to the
negative terminal (-) and the work return to the positive (+) terminal
 Always consult the electrode manufacturer’s data sheet if you have any doubts.
18
3.0 Operation
Duty cycle and overheating
Duty Cycle is percentage of 10 minutes that unit can weld at rated load without
overheating. If unit overheats, thermostat(s) opens, output stops, and cooling fan
runs. Wait fifteen minutes for unit to cool. Reduce amperage or duty cycle before
welding.
60% Duty Cycle at 180A.
Overheating
▲ Welding machine must be used according to technical data from this manual. If the
machine is overloaded, failures may occur that are not be covered by warranty.
Overload control
Thermal protection is built in the machine's main transformer and Inverter Bridge. If
the machine overheats, thermal fuse will prevent further use and control lamp on
the front panel will light up. In this case the welder must wait until the machine's
temperature drops to normal. Note the machine must be left switched on for the fan
to keep running.
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TitanMig AU 250C Manual_ Issue A 0415
3.1 GMAW (MIG) Welding






20
Insert the welding torch into the “Euro connector for torch in MIG” output socket on the front
panel of the machine, and tighten it.
Install the wire spool on the spindle adapter.
Connect the cylinder equipped with the gas regulator to the gas inlet on the back panel of the
machine with a gas hose.
Insert the cable plug with work clamp into the “-” output terminal on the front panel of the
welding machine, and tighten it clockwise.
Insert the quick plug of the gas / no gas selector into the “+” output terminal of the welding
machine, and tighten it clockwise.
Ensuring that the groove size in the feeding position on the drive roll matches the contact tip size
of the welding torch and the wire size being used. Release the pressure arm of the wire feeder to
thread the wire through the guide tube, and into the drive roll groove. Adjust the pressure arm,
ensuring no sliding of the wire. Too high pressure will lead to wire distortions, which will affect
wire feeding. Press the wire inch button to thread the wire out of the torch contact tip.

After being installed according as above, and the power switch on the back panel being switched
on, the machine is started. At this time, the ammeter displays the preset wire feed speed value,
and the voltmeter displays the preset voltage value. Open the cylinder valve, and switch the gas
check switch to the “GAS CHECK” position. Adjust the gas regulator to get the correct gas flow.
After setting, switch the gas check switch to the “Welding” position.

Before starting the welding it is recommended to make tests and trial runs on scrap material.

The actual current and voltage values are displayed on the front panel of the machine. When the
torch trigger is released, welding ends. 2 seconds after welding ends, the gas supply will be cut
off.
Gas less Self Shielded Welding
Insert the welding torch into the “Euro connector for torch in MIG” output socket on the front panel of the
machine, and tighten it.
Installation of wire reel
Open the side cover and unscrew reel brake cover. Mount the reel in such way that one
end of wire hangs downwards. Mount brake cover back in position.
Cut off the bent end of the wire. Lead the end of the wire trough inlet guide and unclip
pressure handle of feed rollers in order to make the work easier. Ensure both wire inlet
guide and the feeding rollers groove are aligned. Push the welding wire to the inlet of the
torch connection. Replace the pressure handle to re-establish pressure on the wire. If
handle pressure is too strong the wire could be transformed - flattened. If the pressure is
too low the wire could slip in the feeding groove. Use tension knob to adjust this.
Gas selection for Gas Metal Arc Welding (GMAW)
Metal inert gas welding (MIG): Uses Argon (Ar), Helium (He) or Ar-He mixtures as the shield gas, and it
mainly used for welding aluminum and its alloys.
Metal active gas welding (MAG): Uses Argon (Ar) mixed with a certain amount of CO2 / O2 as the shield
gas, and it usually used in short circuit transfer and spray transfer. It can be applicable to flat position
welding, vertical position welding, overhead position welding and all-position welding, and it mainly used
for welding carbon steel, high strength low alloy steel and stainless steel. Welding robots mostly use the
MAG process.
CO2 (carbon dioxide) gas shielded arc welding (CO2 welding): It uses CO2 as the shield gas, and is usually
used in globular transfer and short circuit transfer to implement welding. It can be used to weld in
different positions. As compared with other welding methods, CO2 welding has many advantages, though
it produces more spatters, CO2 welding is widely used for general metal structure welding.
The correct shielding gas can alter productivity in GMAW by contributing to.
 Correct weld sizes, to reduce over welding
 Lower spatter levels, to increase welding speed and reduce clean-up
 Reduced welding defects which reduces rework time
 Reduced fume levels, to improve OH&S and worker comfort, increases productivity
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TitanMig AU 250C Manual_ Issue A 0415
Shielding gases have a strong influence over..
 Stability of the arc
 The shape of the weld bead/face
 Mechanical properties of the weld
 Cost efficiency of the welding process being used
 Control of fume generation rates
Gases used in Shielding Gas Formulations
Argon
 The tendency for argon to produce a “Wine Glass” penetration profile can make it difficult to ensure
complete fusion of the weld especially if “Arc Wander” is occurring.
 For GMAW applications small additions of oxygen or carbon dioxide will assist in eliminating “Arc
Wander” by producing a uniformly oxidized surface for the arc root to “Anchor” to. The addition of
helium produces a broader and deeper fusion profile.
Carbon Dioxide CO2
 The first shielding gas used for GMAW, MIG welding.
 Spray transfer using GMAW cannot be achieved with carbon dioxide.
 At low currents a good dip transfer mode can be obtained.
 At high currents the transfer mode is globular and significant spatter is produced
 Carbon Dioxide is less than ideal for use alone as a shielding gas but it is an essential ingredient of
most GMAW shielding mixtures.
 High Carbon Dioxide (18 to 23%) mixtures are particularly suited to welding steels which are coated
with paint, primers and other surface contaminants, or where higher penetration is required.
Helium
 Rarely used alone as a shielding gas.
 Completely inert.
 Lighter than air therefore less efficient as a shield.
 High ionization potential which can cause arc initiation problems.
 Essential ingredient for many shielding gas mixtures.

Helium rich shielding gas mixtures provide excellent weld fusion characteristics for GMA welding
applications. The high heat input obtained by using helium produces a hot arc and allows for high
deposition welding.
Oxygen
 Oxygen is never used as a shielding gas on its own.
 Oxygen is a vital component in many mixtures and performs two main functions…
 It aids stability within the arc ionizing at a similar level to argon and influences the arc rooting
characteristics by producing a uniform oxide layer on the electrode and work piece.
It also reduces the surface tension of the metal droplets and the molten weld pool.
 The benefits of these two functions are reduced wire losses as a result of spatter and the more
efficient use of deposited metal due to reduced reinforcement (weld metal build-up).
22
Penetration Profiles
Different shielding gas formulations produce quite different and significant changes to the
penetrationprofile of the weld.
Selecting the Correct Shielding Gas
Base Material considerations
 Base material type or classification
 Base material thickness
 Joint design
 Welding position
Quality aspect of the finished weld
 Mechanical and chemical requirement
 Surface finish
 Penetration
Metal transfer mode
 Spray transfer
 Globular transfer
 Dip transfer
 Pulsed current transfer
Economics of the weld
 Clean up costs (acceptable level of spatter)
 Welding travel speed
 Flow rate of shielding gas
 Cost of shielding gas
Carbon Steel - Low content CO2 Mixtures



Most shielding gases are based on the argon/carbon dioxide/oxygen system for welding carbon steels.
Low content CO2 mixture (1-7% CO2) produce welds with a “Wine Glass” penetration profile similar to
that produced by pure argon, along with a very stable arc and low spatter levels.
Due to these mixtures having a relatively low heat input, fusion defects and porosity can occur when
welding heavy sections due to the penetration profile, low fluidity and the rapid freezing of the weld
pool.
Carbon Steel – Intermediate content CO2 mixtures
 Intermediate content CO2 mixtures (8-15% CO2) produce a higher heat input giving improved
characteristics and broader penetration profile.
 These mixtures are more versatile than the low content CO2 mixtures and sound welds can be
produced over a wide range of material thickness.
 These mixtures usually produce the most stable welding arc characteristics and are normally the best
general purpose shielding gases for Mild, Carbon and Low Alloy Steels.
High content CO2 mixtures
 High content CO2 mixtures (16-23% CO2) allow for further improvements in the fusion characteristics
and the penetration profiles of the weld.
 These mixtures are ideally suited for welding heavy sections especially in multi pass situations.
 The stiff weld pools cool relatively slowly which aids welding and complete fusion to the weld side
walls.
 Any entrapped gas has time to disperse before freezing of the weld pool occurs.
 The arc is less stable than with the low content CO2 mixtures which may result in increased spatter
levels.
23
TitanMig AU 250C Manual_ Issue A 0415
Welding current setting
Set the welding current after the above preparation. Short circuiting transfer is mainly fit for electrode
wires of diameter 0.6~1.2mm. As a guide for short circuit welding set the welding current according to the
table below.
Wire Diameter(mm)
0.8
1.0
1.2
Welding Current Range(A)
50-120
70-180
80-350
Optimal Current(A)
70-100
80-120
100-200
Welding speed selecting
The welding quality and productivity should be taken into consideration for the selecting of welding speed.
In the case that the welding speed increases, it weakens the protectioneffect and quickens the cooling. As
a consequence, it is not good for weld bead shaping. In the event that the speed is too slow, the
workpiece will be burned through, and a good weld bead will be unavailable. In practical operation, the
welding speed should not exceed 50cm/min.
Wire Stick-out
The increase of the stick-out can improve the productivity, but too long stick-out may lead to excessive
spatter, wire breaking and unstable welding. Generally, the stick-out should be 10 times as the welding
wire diameter.
Shielding Gas flow selection
The protection effect is the primary consideration. Besides, the protection effect of inner-angle welding is
better thanthat of external-angel welding, so the gas flow in inner-angle welding should be lower. Less or
no shield gas is needed in FCAW. Refer to the table below for the recommended gas flow rates.
Welding Mode
Welding with thin wire
Welding with thick wire
Gas Flow(L/m)
5~15
15~20
24
Welding with thick wire
under high current
20~2
Work piece preparation
Welding joint describes the welding spot and exact position of work pieces to be welded together. Work
piece preparation, groove form and width, material type and thickness, together with certain welding
technique all determine joint type.
Around the groove work pieces should be dry and clean, free of rust, metallic coating, dirt, colour or
grease.
Metal thickness
[mm]
Work piece
spacing [mm]
up to 1,5
from 1,5
0 to 2
2 to 4
up to 2
3 to 6
up to 1
3 to 6
up to 1
Square T - joint
single sided
from 0,6
-
Square T - joint
double sided
from 0,6
-
Lap joint
0,6 to 1,5
-
Edge joint
from 1
-
Joint type
Groove shape
Square butt
joint
single sided
Square butt
joint
double sided
Weld shape
V – butt joint
25
TitanMig AU 250C Manual_ Issue A 0415
Positioning the welding torch
Welding wire is energised when the torch button is pressed. Lower your helmet first and then press the
trigger. Wire should be around ½ in past end of nozzle, and tip of wire positioned correctly on seam.
1…….. Hold torch and control trigger with one
hand
2……..
Work piece
3……..
Earth clamp
4…….. Electrode extension (Stickout) ¼ to ½ in
5…….. Cradle torch with the other hand and
rest it on work piece
Heat distribution and weld
material flow are specific for
groove welds and fillet welds.
Optimal torch position differs
from one to another.
Weld bead shape differs
depending
on
electrode
extension when welding fillet
welds.
26
Gun movement during welding
Weld bead shape as well as penetration and overall joint quality are affected by torch angle, direction of
travel, electrode extension, travel speed, thickness of base material, wire feed speed, and voltage.
varies with torch travel speed.
For adequate penetration to
be achieved welding source
must provide more power at
higher speeds.
Using constant parameters welding material deposit and penetration
Dragging the torch results in
deeper
penetration
and
narrower weld. Arc strength
prevents slag to enter the
molten material.
When pushing the torch
penetration will be shallower
and the weld wider. This
movement is suitable for thin
plates because of smaller heat
input.
3……..
Wave patterns
Use weave patterns to cover a
wide area in one pass of
electrode.
Normally a single stringer bead
is satisfactory for most narrow
groove weld joints. However for
wide groove weld joints or
bridging across gaps, a weave
bead or multiple stringer beads
work better.
1…….. Stringer bead – steady movement along seam
2…….. Wave bead – side to side movement along seam
27
TitanMig AU 250C Manual_ Issue A 0415
Welding results and troubleshooting
GOOD WELD BEAD
1……..
2……..
3……..
4……..
5……..
POOR WELD BEAD
1……..
2……..
3……..
4……..
5……..
28
Large spatter deposits
Rough, uneven bead
Slight crater during welding
Bad overlap
Poor penetration
Fine spatter
Uniform bead
Moderate crater during welding
No overlap
Good penetration into base material
Excessive spatter
Scattering of molten metal particles that cool to solid near
weld bead.
Possible causes
Corrective actions
Wire feed speed too high.
Select lower wire feed speed.
Voltage too high.
Select lower voltage.
Electrode extension too long.
Use shorter electrode extension.
Work piece dirty.
Remove all grease, oil, moisture, rust, paint, undercoating, and
dirt from work surface before welding.
Insufficient shielding gas at arc.
Increase flow of shielding gas at regulator and/or prevent
drafts near welding arc.
Dirty welding wire.
Use clean, dry welding wire.
Eliminate pickup of oil or lubricant on welding wire from
feeder or liner.
Porosity
Small cavities or holes resulting from gas pockets in weld
material.
Possible causes
Corrective actions
Wrong gas.
Use welding grade shielding gas; change to different gas.
Welding wire extends too far out of
nozzle.
Be sure welding wire extends no more than ½ in beyond
nozzle.
Work piece dirty.
Remove all grease, oil, moisture, rust, paint, undercoating, and
dirt from work surface before welding.
Use a highly deoxidising welding wire (contact supplier).
Insufficient shielding gas at arc.
Dirty welding wire.
Increase flow of shielding gas at regulator and/or prevent
drafts near welding arc.
Remove spatter from gun nozzle.
Check gas hoses for leaks.
Place nozzle ¼ to ½ in from work piece.
Hold gun near bead at end of weld until molten metal
solidifies.
Use clean, dry welding wire.
Eliminate pickup of oil or lubricant on welding wire from
29
feeder or liner.
Excessive penetration
Weld metal melting through base metal and hanging
underneath it.
Possible causes
Corrective actions
Select lower voltage range and reduce wire feed speed.
Excessive heat input.
Increase travel speed.
Lack of penetration
Shallow fusion between weld metal and base metal.
Possible causes
Improper joint preparation.
Improper welding technique.
Corrective actions
Material too thick. Joint preparation and design must provide
access to bottom of groove while maintaining correct welding
wire extension and arc characteristics.
Maintain normal gun angle of 0 to 15 degrees to achieve
maximum penetration.
Keep arc on leading edge of weld puddle.
Be sure welding wire extends no more than ½ in beyond
nozzle.
Insufficient heat input.
Select higher wire feed speed and/or select higher voltage
range.
Reduce travel speed.
Distortion
Contraction of weld metal during welding that forces base
metal to move.
Possible causes
Excessive heat input.
30
Corrective actions
Select lower voltage range and reduce wire feed speed.
Increase travel speed.
Use restraint (clamp) to hold base metal in position.
Make tack welds along joint before starting welding operation.
Weld in small segments and allow cooling between welds.
Incomplete fusion
Failure of weld metal to fuse completely with
base metal or a preceding weld bead.
Possible causes
Work piece dirty.
Improper welding technique.
Corrective actions
Remove all grease, oil, moisture, rust, paint, undercoating, and
dirt from work surface before welding.
Place stringer bead in correct location(s) at joint during
welding.
Adjust work angle or widen groove to access bottom during
welding.
Momentarily hold arc on groove side walls when using weaving
technique.
Keep arc on leading edge of weld puddle.
Use correct gun angle of 0 to 15 degrees.
Insufficient heat input.
Select higher wire feed speed and/or select higher voltage
range.
Burn-through
Weld metal melting completely through base metal resulting in
holes where no metal remains.
Possible causes
Corrective actions
Select lower voltage range and reduce wire feed speed.
Excessive heat input.
Increase and/or maintain steady travel speed.
Incomplete fusion
Weld metal that is not parallel and does not cover
joint formed by base metal.
Possible causes
Corrective actions
Welding wire extends too far out of
nozzle.
Be sure welding wire extends no more than ½ in beyond
nozzle.
Unsteady hand.
Support hand on solid surface or use two hands.
31
TitanMig AU 250C Manual_ Issue A 0415
3.2 MMAW (Stick/MMA) Welding
Insert the cable plug with electrode holder into the
“+” socket on the front panel of the welding
machine, and tighten it clockwise.
Insert the cable plug of the work return lead into
the “-” socket on the front panel of the welding
machine, and tighten it clockwise

After connecting the welding leads as detailed you will need to switch the power switch on the
back panel to “ON”

Select MMA by switching to the MMA welding mode. There is voltage output at both output
terminals.
Set the amperage on the machine suitable for the electrode being used. Ensure you check that
you have the electrode polarity correct.

Please see below a guide to amperages required.
Electrode Diameter(mm)
Welding Current(A)
Electrode Diameter(mm)
Welding Current(A)
2.0
40-60
4.0
130-180
2.5
60-95
5.0
180-220
3.2
95-130
6.0
220-260
AverageThickness of
Material (mm)
Suggested Electrode
Diameter (mm)
AverageThickness of
Material (mm)
Suggested Electrode
Diameter (mm)
1.0-2.0
2.5
5.0-8.0
4.0
2.0-5.0
3.2
8.0 >
5.0
32
3.3 GTAW (TIG) Welding
Insert the cable plug with the work clamp into the “+”
socket on the front panel of the welding machine, and
tighten it clockwise.
Insert the cables plug of the TIG torch into the “-” socket on
the front panel of the machine and tighten clockwise.
Connect the gas hose to the regulator / flowmeter located
on the shield gas cylinder.
Open the valve on the TIG torch and “scratch” the
electrode on the work piece to start the arc

Connect the TIG torch leads as detailed above. Ensure that a suitable inert gas supply is
connected.




Switch the power switch on the back panel to “ON”
Select the TIG welding mode using the selector switch.
There is voltage output at both output terminals.
After the parameters are set appropriately, open the gas valve of the cylinder, the gas valve on the
torch and adjust the gas regulator to obtain the desired flow rate.
 The arc will start when the tungsten electrode touches the work piece and is lifted off after
touching by between 2-4mm
 The arc will cease when the electrode (torch) is moved away from the work area
TIG guides
The recommended size of tungsten/nozzle to be used can be selected from the table below
Electrode
Diameter(mm)
Welding
Current(A)
Gas Nozzle
Diameter (mm)
Electrode
Diameter(mm)
Welding
Current(A)
Gas Nozzle
Diameter(mm)
1.0
15-80
8.0
2.4
150-250
9.5
1.6
70-150
9.5
3.2
250-400
11.0
Electrode type
Type
Mode
Colour
Thoriated 2%
DC welding of steel, stainless steel and copper
Red
Ceriated
DC welding of steel, stainless steel and copper
Grey
Lanthanated 1.5%
DC welding of steel, stainless steel and copper
Gold
33
TitanMig AU 250C Manual_ Issue A 0415
Trouble Shooting
4.1 Mig Welding Trouble Shooting
The following chart addresses some common problems during MIG Welding.
In the event of equipment malfunction, contact an authorized service agent.
Possible Reason
Suggested Solution
The Welding current is unstable
The pressure arm on the wire feeder is not
Adjust it to get proper pressure.
properly adjusted
The drive roll does not match the wire size being
Make sure they match with each other.
used.
The contact tip of the welding torch is badly
Replace it.
worn.
The wire-feeding tube of the welding torch is
Replace it
badly worn.
The welding wire is of poor quality
Replace it with welding wire of good quality
Excessive Spatter
Wire feed speed set too high
Select lower wire speed
Voltage to high
Select a lower voltage setting
Wrong polarity Set
Select the correct polarity for the wire being used
Stick out too long
Bring the torch closer to the work piece
Contaminated base metal
Remove any paint , grease, oil & dirt
Contaminated MIG Wire
Use clear dry rust free wire only.
Gas Flow too high or too low
Check gas is connected. Set gas flow between 10-15 l/min. Protect Weld Zone
from wind & drafts
Porosity
Wrong Gas
Check that correct gas is being used
Gas Flow too high or too low
Check gas is connected. Set gas flow between 10-15 l/min.
Protect Weld Zone from wind & drafts
Moisture on the base metal
Remove all moisture from base metal
Contaminated base metal
Remove any paint , grease, oil & dirt
Contaminated MIG Wire
Use clear dry rust free wire only.
Gas nozzle worn or out of shape
Replace it
Missing or damaged gas diffuser
Replace it
Mig Torch O-ring missing or worn
Replace it
Wire stubbing
Holding the torch too far away
Bring torch closer to work piece. Stick out should be 5-10mm
Welding Voltage too Low
Increase Voltage
Wire Speed Too High
Decrease the wire speed
34
4.1 Mig Welding Trouble Shooting (Continued)
Lack of Penetration
Poor joint preparation
Material too thick. Joint preparation needs to allow access to bottom of groove
Contaminated base metal
Remove any paint , grease, oil & dirt
Lack of Fusion
Contaminated base metal
Remove any paint , grease, oil & dirt
Not enough Heat input
Increase voltage range / adjust wire speed
No wire Speed
Wrong Mode selected
Check that the selector switch is set to MIG position
Inconsistent Wire Feed
Adjusting wrong dial
Adjust Wire Speed & Voltage for Mig. Amp dial is used for MMA & TIG
Wrong Polarity
Select the correct polarity for the wire being used
Incorrect Wire Speed
Adjust Speed setting
Voltage Setting Incorrect
Adjust Volt setting
Torch too long
Replace with shorter gun
Contact tip worn / wrong size
Replace with correct type
Liner worn or clogged
Replace with new liner
Wrong size liner
Replace with correct type
Blocked inlet or outlet guide
Clean or Replace
Incorrect drive roller
Fit correct type for wire being used
Worn drive roller
Replace with new
Drive roll pressure to high
Reduce Drive roll pressure
Too much tension on wire spool hub
Reduce the spool hub tension brake
There is output current when pushing the torch trigger to feed gas, but the wire feeder does notwork.
The control cable of the wire feeder is broken
Get it repaired or replaced
The wire feeder is clogged.
Unclog it.
The wire feeder fails.
Repair it.
The control PCB or wire-feeder power PCB inside
Replace it.
the machine fails
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TitanMig AU 250C Manual_ Issue A 0415
4.2 MMAW (Stick) Welding Trouble Shooting
The following chart addresses some common problems during MMAW Welding.
In the event of equipment malfunction, contact an authorized service agent.
Possible Reason
Suggested Solution
No Arc
Incomplete welding circuit
Check Earth & Work leads connected
Wrong Mode Selected
Check the MMA/Stick switch is selected
Porosity
Arc length too long
Shorten arc length
Contaminated base metal
Remove any paint , grease, oil & dirt
Damp or Contaminated Electrodes
Dry Electrode or replace
Lack of Penetration
Insufficient heat input
Increase amperage
Contaminated base metal
Remove any paint , grease, oil & dirt
Excessive Spatter
Amperage set to high
Reduce Amperage
Arc length too long
Shorten arc length
Excessive penetration
Amperage set to high
Reduce Amperage
Incorrect travel speed
Increase travel speed
Distortion
Excessive heat input
Reduce Amperage
Poor joint preparation
Check joint design and fit up
36
4.3 GTAW (TIG) Welding Trouble Shooting
The following chart addresses some common problems during TIG Welding.
In the event of equipment malfunction, contact an authorized service agent
Possible Reason
Suggested Solution
Tungsten burning Quickly
Incorrect Gas or No Gas
Check Pure Argon is in use
Insufficient Gas Flow
Check gas flow. Set to 10-15 l/min
Back Cap not fitted correctly
Check Back cap is fitted correctly and o ring in tact
Torch connected to (+) connection
Refit torch to (-) connection
Wrong Tungsten
Check Colour of tungsten & change to correct type
Tungsten oxidizing after weld
Post gas insufficient. Gas flow suggested 10-15 S after end of weld cycle
Contaminated Tungsten
Touching Tungsten into Weld Pool
Keep tungsten raised to 2-5mm of workpeice
Touching Filler wire to Tungsten
Feed filler into the leading edge of the weld pool
Tungsten Melting
Check Type & Size Tungsten being used
Porosity
Incorrect Gas or No Gas
Check Pure Argon is in use
Insufficient Gas Flow
Check gas flow. Set to 10-15 l/min
Contaminated base metal
Remove any paint , grease, oil & dirt
Contaminated TIG Wire
Use clear dry rust free wire only.
Unstable Arc
Torch connected to (+) connection
Refit torch to (-) connection
Contaminated base metal
Remove any paint , grease, oil & dirt
Contaminated Tungsten
Cut & re-grind Tungsten
Arc length too long
Keep torch raised to 2-5mm of workpeice
Wandering Arc
Incorrect Gas or No Gas
Check Pure Argon is in use
Wrong Tungsten
Check Colour of tungsten & change to correct type
Poorly prepared Tungsten
Ensure Tungsten is ground lengthways
Contaminated base metal
Remove any paint , grease, oil & dirt
Contaminated TIG Wire
Use clear dry rust free wire only.
Difficulty Starting Arc
Incorrect Gas or No Gas
Check Pure Argon is in use
Contaminated Tungsten
Cut & re-grind Tungsten
Wrong Tungsten
Check Colour of tungsten & change to correct type
Loose connection
Check connections
Earth Clamp not connected
Connect earth clamp to the work piece
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TitanMig AU 250C Manual_ Issue A 0415
4.4 Electrical Trouble Shooting
In the event of equipment malfunction, contact an authorized service agent
The following operation requires sufficient professional knowledge on electric aspects and comprehensive
safety knowledge. Make sure the input cable of the machine is disconnected from the electricity supply and
wait for 5 minutes before removing the machine covers Before taking your unit for servicing, check the list
below.
Possible Reason
Suggested Solution
There is output current when pushing the torch trigger to feed gas, but the wire feeder does notwork.
The control cable of the wire feeder is broken
Get it repaired or replaced
The wire feeder is clogged.
Unclog it.
The wire feeder fails.
Repair it.
The control PCB or wire-feeder power PCB inside
Replace it.
the machine fails
When the torch trigger is pushed, there is gas output and the wire feeder works, but there is no output
current, and the protection LED is off.
The earth cable is not well connected with the
Reconnect it.
workpiece
The wire feeder cable is not well connected.
Reconnect it.
The wire feeder or welding torch fails
Repair the wire feeder or welding torch
No response when pushing the torch trigger and the protection LED is off
The welding torch is not well connected with the
Reconnect it
wire feeder.
The control cable of the wire feeder is not well
Reconnect it
connected with the welding power supply
The torch trigger fails.
Repair or replace the welding torch.
The fan does not work or it works abnormally
The mains power supply or the mains supply
Reconnect the mains supply cable
cable is not connected
Phase failure
Solve the phase failure problem.
The mains voltage is too low
Welding can be carried out after the mains voltage recovers
There is no no-load voltage
The mains voltage is too low.
Welding can be carried out after the mains voltage recovers.
Phase failure
Solve the phase failure problem.
The no-load voltage is “0”, and the overheating LED is on.
Overheating protection
It will recover automatically after the welding machine is cooled.
Other malfunction
Contact the service center of your distributor
38
5.0 Maintenance
The utilization level of the power source and its working environment should be taken into consideration
in planning the frequency of maintenance of the machine. Appropriate use and preventive maintenance
guarantee the trouble-free use of the equipment. This allows you to avoid interruptions in use and
increases the productivity of the machine.
5.1 Cables
Check the condition of welding and mains cables daily. Do not use damaged cables. Also make sure that all
extension cables used in the mains connection are in proper condition and compliant with regulations.
NOTE! The mains cables may be repaired and installed only by electrical contractors and installers
authorized to perform such operations.
5.2 Power source
Before cleaning the interior of the machine, you need to remove the case by unscrewing the mounting
screws at the top and sides of the machine.
NOTE! To prevent damage, wait approximately two minutes after disconnecting the mains cable before
removing the machine’s case. Perform the following cleaning and maintenance at least every six months:
1. Clean the interior of the machine and the fan grill’s net of any dust and stains – for
Example, with a soft brush and vacuum cleaner.
•Do not use pressurized air. The stain may become compressed into the grooves of the coolers.
•Do not use a pressure-washing device.
2. Check the electrical connections of the machine. Clean any oxidized connections, and tighten the
loosened ones.
•Check for the right tension before you start repairing the connections.
NOTE! Remember that the machine may be repaired only by an electrical contractor or installer
authorized to perform such operations.
5.3 Regular maintenance
Authorized service agents perform regular maintenance by agreement.Tasks included in regular
maintenance:







Cleaning Equipment
Inspection and maintenance of the welding gun.
Checking of connectors, switches, and control knobs.
Checking electrical connections.
Checking the mains cable and plug
Replacement of damaged or worn parts.
Calibration testing, with adjustment of the functions and operational values of the machine, if
necessary
39
TitanMig AU 250C Manual_ Issue A 0415
6.0 Warranty Terms & Conditions
Weldtronic International P/L: ABN 99 149 754 263
Weldtronic International P/L (Weldtronic) warrants to the original retail purchaser that the
products supplied by us and purchased by you from an authorized Weldtronic distributor are free
of material and faulty workmanship defects except for those products listed under Warranty
Exclusions.
All warranty periods are from date of purchase from the retailer/distributor of the product.
Unless otherwise stated the warranty period includes parts and labour.
If a defect in material or workmanship becomes evident during the warranty period, Weldtronic
will, at its opinion, either:


Repair the Product (or pay for the costs of repair of the product); or
Replace the Product if repair is not possible.
In the unlikely event of such a defect, the customer should return the product to the original
place of purchase, with a proof of purchase, or contact Weldtronic on 03 9702 9366 to locate a
authorized service agent.
Any handling and transportation costs (and other expenses) incurred in claiming under this
warranty are not covered by this warranty and will not be borne by Weldtronic.
Weldtronic will return the replacement or repaired product, if original found to be faulty, freight
free to the customer.
The obligation of Weldtronic International P/L under this warranty is limited to the circumstances
set out above and is subject to:
 The customer being able to provide proof of purchase of the product and the purchase
price paid for the product;


The relevant defect in materials or workmanship;
The product not having been altered, tampered with or otherwise dealt with by any
person in a manner other than as intended in respect of the relevant product; and
 The product not having been used or applied in a manner that is contrary to customary
usage or application for the relevant product or contrary to any stated instructions or
specification of Weldtronic International.
Our products come with a guarantee that cannot be excluded under the Australian Consumer Law.
You are entitled to a replacement or refund for a major failure and for compensation for any
other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or
replaced if the goods fail to be of an acceptable quality and the failure does not amount to a
major failure. The benefits given by this warranty are in addition to the other rights and remedies
which may be available to the customer under any law in relation to goods and services to
which this relates.
These terms and conditions supersede and exclude all former and other representations and
arrangements relating to any warranties on these products
40
Warranty Periods
We offer the following Warranty Periods from date of purchase;
Equipment Power Sources
TitanTIG, TitanMIG, TitanARC Inverter Series (Power Source)
TronicTig, TronicMIG, TronicPlas Inverter Series (Power Source)
EuroMIG Transformer MIG Series (Power Source)
TronicCool Water Coolers
Electrode Ovens
Straight Line & Pipe Cutters (Power source only)
Positioners & Rotators (power source only)
Gas apparatus
TronicFlame Gas & Welding Kits
TronicFlame Regulators
Automatic Welding Helmets
Clearwelding® CWH720S Series Automatic Helmet
Clearwelding® CWH800S / 815S / 820S Series Automatic Helmet
Welding Accessories
MIG , TIG & Plasma Torches
Earth & Work Leads
Gas Hose & Interconnecting Cables
2 Years
2 Years
3 Years
1 Year
1 Year
1 Year
1 Year
(Clause 2)
(Clause 2)
(Clause 1&2)
(Clause 2)
(Clause 2)
(Clause 2)
(Clause 2)
3 Months
1 Year
(Clause 2&4)
1 Year
2 Years
(Clause 4)
(Clause 4)
3 Months
3 Months
3 Months
(Clause 1) 3 Year warranty on transformer, inductor, & Rectifier.2 Year Warranty on PCB and all other
components.
(Clause 2) This only covers manufacture defaults on all accessories for the first three months after date of
purchase (e.g. MIG/TIG/Plasma Torches, Earth Leads, Gas hose, etc.).
(Clause 3) Gas Hose & Flashback arrestors are subject to and covered by the manufacturer’s individual
warranty.
(Clause 4) 1 & 2 Year warranty on ADF Lens. 3 Month warranty on Helmet shell, harness & fittings.
Warranty, Returns & Exchanges
(1)Subject to the conditions of warranty set out in the warranty period, Weldtronic International P/L
warrants that if any defect in any workmanship on any product has occurred then the conditions applicable
to the warranty period are;
(a)The warranty applies on the basis of the goods being used on the equivalent of single daily eight (8) hour
shift.
(2)The warranty shall not cover defect or damage which may be caused or partly caused by or arise through:
(a)Failure on the part of the buyer to properly maintain any goods.
(b)Failure on the part of the buyer to follow any instructions or guidelines provided by Weldtronic.
(c)Any use of any goods otherwise than for any application specified on a quote or order form.
(d)The continued use of any goods after any defect becomes apparent or would have become apparent to
a reasonably prudent operator or user.
(e)Fair wear and tear of goods or any part thereof including but not limited to items listed in warranty
exclusions.
(f)Misuse, neglect, accident, vandalism or damage in transit or natural disaster.
(3)The warranty shall cease and Weldtronic International P/L shall thereafter in no circumstancesbe liable under the
terms of the warranty if the workmanship is repaired, altered or overhauled without Weldtronic International
consent.
(4)In respect of all claims Weldtronic International P/L shall not be liable to compensate the buyer for any delay
in either replacing or remedying the workmanship or in properly assessing the buyers claim.
41
TitanMig AU 250C Manual_ Issue A 0415
(5)For goods not manufactured by Weldtronic International P/L, the warranty shall be the current warranty
provided by the manufacturer of the goods. Weldtronic International shall not be bound by nor be responsible for
any term, condition, representation or warranty other than which is given by the manufacturer of the goods.
(6)We understand that sometimes you may need to return a product you have purchased from Weldtronic
International p/l authorized dealer, to assist you , we have set out below the Weldtronic International P/L
Returns Policy that you should know.
Our Returns Policy includes the rights you have under the Australian Consumer Law and other relevant laws.
Your rights under the Australian Consumer Law;
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a
replacement or refund for a major failure and for compensation for any reasonably foreseeable loss or damage. You are
also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not
amount to a major failure.
You shall inspect the goods on delivery and shall within seven (7) days of delivery notify Weldtronic
International P/L of any alleged defect, shortage in quantity, damage or failure to comply with the
description or quote.
You shall also afford Weldtronic International P/L the opportunity to inspect the goods within a reasonable
time following delivery if you believe the goods are defective an any way.
If you fail to comply with these provisions the goods shall be presumed to be free from any defect or damage. For defective
goods, which Weldtronic International P/L has agreed in writing that you are entitled to reject, Weldtronic International P/L
liability is limited to either (at Weldtronic discretion) replacing the goods or repairing the goods except where you have
acquired goods as a consumer within the meaning of the Trade Practices Act 1974 or the Fair Trading Acts of the relevant
state or territories of Australian, and is therefore also entitled to, at the consumers discretion either a refund of the
purchase price of the goods, or repair of the goods, or replacement of the goods.
(7)Returns will only be accepted provided that;
(a)You have complied with the provisions outlined above, and…
(b)Where the goods are unable to be repaired, the goods are returned at your cost within thirty (30) days of
the delivery date, and…
(c)Weldtronic International P/L will not be liable for goods which have not been stored or used within the
proper manner, and…
(d)The goods are returned in the condition in which they were delivered and with all packaging material, brochures and
instruction material in as new condition as is reasonably possible in the circumstances. Failure to comply to this point
may mean that a re-stocking fee is charged to compensate Weldtronic for any lost materials and labour.
(8)Weldtronic International P/L accepts no responsibility for products lost, damaged or mislaid whilst in
transit.
(9)Weldtronic International P/L (at their sole discretion) accepts the return of goods for credit but this may
incur a handling fee of up to twenty percent (20%) of the value of the returned goods plus any freight costs.
(10)Where the failure does not amount to a major failure, Weldtronic International P/L is entitled to choose
between providing you with a repair, replacement or other suitable remedy.
(11)Your rights under the Australian Consumer Law are not limited by a defined time. However, the Australian
Consumer Law does recognize the relevant time period can vary from product to product, depending on factors such
as the nature if the product and price. Weldtronic International P/L adopts the same approach. As you can appreciate,
the type of remedy we can offer you may also vary depending on how long it takes you to return the product to use.
42
Making a Claim
(12)If you wish to make a claim under this warranty you should;
(a)Return the product to the point of purchase either in person or on a prepaid courier; or
(b)Contact us by telephone on 03 9702 9366 or mail to PO 2096 RowvilleVIC 3178
(c)When returned, the product must be accompanied with the original invoice including the purchase price and
disclosing the purchase date.
(d)All costs of installation, cartage, freight, travelling expenses, hiring tools and insurance are paid by the Customer.
(e)To the extent permitted by law, our total liability for loss or damage of every kind related to the
product in any way whatsoever is limited to the amount paid to the retailer by you for the product or
value of the product.
Warranty Exclusions
(13)This warranty covers material and faulty workmanship defects only. This warranty does not cover
damage caused by
(a)Normal wear and tear due to usage
(b)Misuse or abusive use of the instructions supplied with the product
(c)Failure to clean or improper cleaning of the product
(d)Failure to maintain the equipment such as regular services etc.
(e)Incorrect voltage or non-authorized electrical connections
(f)Improper installation
(g)Use if non-authorized/non-standard parts
(h)Abnormal product performance caused by any ancillary equipment interference or other external factors.
(i)Failure or breakage caused by overload, dropping or abusive treatment or use by the customer
(j)Repair, modifications or other work carried out on the product other than by an authorized Weldtronic
service dealer.
(14)This warranty does not cover the following parts:
(a)MIG , TIG & Stick (MMA) Welding Torches & Consumables such as;
Gas nozzles, Gas diffusers, contact tip holder, contact tip, swan necks, trigger, handle, liners, wire guide, drive roller, neck
spring, connector block, insulator, gas nipple , cap, euro block, head assembly, gas block, trigger spring, cable support,
neck insulator, lock nut, arc leas, welding cable, electrode holders & earth clamps, tungsten Electrodes, Collect, Back Cap,
Collet body, Torch head, gaskets, gas lens & O-rings.
Plasma (b)Cutting Torches & Consumables such as;
Cutting tips, Air diffuser, Swirl ring, Electrode, retaining cap, nozzle spring, spaces, air & power cables,
O-rings, guides, torch bodies, air filter
(c)Straight Line & Pipe Cutting consumables such as; Hoses, fittings, track, cutting nozzles, torch
(15)This warranty does not cover for products purchased:
(a)From a non-authorized Weldtronic dealer (such as purchases from unauthorized retailers and purchases over the
internet from unauthorized local/international sites such as EBay)
(b)At an auction
(c)From a private seller
(d)Unless it is a manufacturing fault, this warranty does not apply for products sold to hire
companies.
These conditions may only be varied with the written approval of the directors of Weldtronic
International P/L.
REMEMBER TO RETAIN YOUR ORIGINAL INVOICE FOR PROOF OF PURCHASE.
43
TitanMig AU 250C Manual_ Issue A 0415
Weldtronic International P/L
ABN 99 149 754 263
42-46 Micro Circuit, DandenongSth
Victoria 3175 Australia
P.O Box 2096 Rowville
Victoria 3178 Australia
Tel: 03 9702 9366
Fax. 03 9702 9766
[email protected]
Web.www.weldtronic.com.au
45
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