HIGH FRE QUENC Y
200A TIG/MMA
ALUMINIUM WELDER
70052
These instructions accompanying the product are the original instructions. This document is part of the product,
keep it for the life of the product passing it on to any subsequent holder of the product. Read all these instructions
before assembling, operating or maintaining this product.
This manual has been compiled by Draper Tools describing the purpose for which the product has been designed,
and contains all the necessary information to ensure its correct and safe use. By following all the general safety
instructions contained in this manual, it will ensure both product and operator safety, together with longer life of the
product itself.
All photographs and drawings in this manual are supplied by Draper Tools to help illustrate the operation of the
product.
Whilst every effor t has been made to ensure the accuracy of information contained in this manual, the Draper
Tools policy of continuous improvement determines the right to make modifications without prior warning.
1. INTRODUCTION
1.1 SCOPE
High frequency TIG/MMA aluminium welder containing
the latest integrated digital technology for optimum
performance.
This product is intended for trade use with the quality &
features to meet and exceed the expectations of the
most demanding user. Any application other than that it
was intended for, is considered misuse.
This product is not a toy and must not be used by
children or any person with reduced physical, sensory or
mental capabilities or lack of experience and knowledge,
or people unfamiliar with these instructions.
Local regulations may restrict the age of the operator.
Danger of ultraviolet radiation.
Danger of burning splashes.
Fan cooled.
Duty cycle.
Input voltage.
1.2 UNDERSTANDING THIS MANUALS
SAFETY CONTENT:
Warning! – Information that draws attention to the
risk of injury or death.
Caution! – Information that draws attention to the risk of
damage to the product or surroundings.
1.3 EXPLANATION OF SYMBOLS
Warning!
Read the instruction manual.
Warning!
Wear suitable welding eye/face protection.
Warning!
Wear ear defenders (During grinding
operations).
Warning!
Wear protective gloves.
Keep out of the reach of children.
Warning!
Danger of electric shock.
Protection rating.
Thermal overload.
One pound-force applied to an area of one
square inch.
Range.
Net machine weight.
WEEE –
Waste Electrical & Electronic Equipment.
Do not dispose of Waste Electrical & Electronic
Equipment in with domestic rubbish.
Do not incinerate or throw
onto fire.
For indoor use only.
Do not expose to rain.
Class 1 appliance
(Must be earthed).
Danger of fire.
Danger of explosion.
Danger of fumes.
– 2 –– 3
UK Conformity Assessed.
European conformity.
See page 6.
2. SPECIFICATION
2.1 SPECIFICATION
Stock No. .............................................................. 70052
Part No. ............................................................ TW250A
Rated voltage .................................................. 230~50Hz
Input current ............................................................ 200A
Current range .................................................. 10 – 200A
Electrode size ............................................... 1.6 – 5.0mm
Pulse frequency ...............................................01. – 20Hz
Degree of protection .............................................. IP21S
Cooling ............................................................... Air (fan)
Insulation class .............................................................. F
Duty cycle ........................... 20% at 200A, 100% at 155A
Dimensions ......................................557 × 210 × 395mm
Weight (Gross/Net/machine only) ............... 27/25.5/18kg
3. HEALTH AND SAFETY
INFORMATION
3.1 GENERAL SAFETY
INSTRUCTIONS
Warning! Read all safety warnings and all
instructions. When using electric tools basic safety
precautions should always be followed to reduce the risk
of fire, electric shock, and personal injury including the
following.
Read all these instructions before attempting to
operate this product and save these instructions.
Electric shock can kill:
– Remove the plug from the socket before carrying out
adjustment, servicing, or maintenance.
– Allow 5 minutes waiting time for the capacitors to
discharge before removing the panels for any
maintenance operations.
– Do not touch live electrical parts.
– Never use electrode holders or cables with damaged
or deteriorated insulation.
– Keep the working environment, equipment, cables,
and clothing free from grease, oil, moisture, and dirt.
– Ensure the welding machine has been correctly
earthed and all panels are fitted securely.
– The operator must be insulated from the floor and
workbench using a dry insulation mat.
– Wear isolating footwear and gloves that are in good
condition, i.e. without holes.
– In hazardous conditions of increased electric shock
always ensure a second person is present in case of
an accident.
– Never change electrodes with bare hands or damp
gloves (for ARC/MMA welders).
– Keep welding cables away from power cables.
– Regularly inspect the condition of the welding, earth,
and power cables for signs of damage.
– Do not leave the machine unattended and remove
the plug from the socket when not in use.
– Do not use welding cables unsuitable for the
amperage.
– Ensure the earth clamp is adjacent to the weld seam,
secured to bare metal and when not in use is
insulated for safety.
– Keep all equipment well maintained.
– The operator shall prevent gas cylinders in the
vicinity of the workpiece from becoming part of the
welding circuit.
Fumes & Gases can be harmful:
– The welding process generates hazardous fumes as
a by-product. Inhalation of these fumes is hazardous
to health.
– Keep your head away from the weld to avoid
breathing the fumes.
– If welding in confined spaces ensure adequate
ventilation and use a fume extractor.
– Welding fumes displace oxygen. The danger of
suffocation.
– By-products of welding can react with other chemical
vapours to produce a toxic/explosive environment.
Welding can cause fire or explosion:
– Arc welding and allied processes can cause fire and
explosions and precautions shall be taken to prevent
these hazards.
– Before starting a weld ensure the area is clear of
flammable materials.
– Remove any inflammables to a safe distance,
especially substances likely to generate a dangerous
vapour.
– The welding arc can cause serious burns. Avoid
contact with skin.
– Sparks and molten metal are cast out during
welding. Take precautions to prevent fire igniting and
wear protective clothing.
– Sparks and molten metal can pass through gaps. Be
aware that fire can start out of sight. Flammables in a
locked cabinet may not be safe.
– Do not weld pressurised containers.
– Do not weld tanks, drums, or other vessels until they
have been correctly cleaned/prepared for welding.
– Always have appropriate and fully maintained
fire-fighting equipment suitable for the materials used
and for use in electrical environments available in
close proximity at all times.
– Keep clothing free from oil and grease.
– Wear a hat, flame-proof apron, woollen clothing,
gloves, long sleeve tops with closed neck, trousers
(without turn-ups) to cover non-slip boots.
–
– Protective head and shoulder coverings should be
worn when overhead welding.
– Avoid taking any fuels with you e.g. cigarette lighters
or matches.
– Hot spots and their immediate surroundings should
be observed until their temperature has dropped to
normal.
Personal Protection:
– The body should be protected by suitable clothing.
– The use of neck protection may be necessary
against reflected radiation.
– Wear safety glasses when chipping, wire brushing,
grinding, or when near cooling welds as metal filings
or slag can be thrown up. Fully enclosed goggles are
advisable.
– Arc machines generate a magnetic field which is
detrimental to pacemaker recipients. Consult your
doctor before going near welding equipment/
operations.
– The UV and IR radiation generated by welding is
highly damaging to the eye, causing burns. This can
also affect the skin. Protect the eyes and face.
– The face and eyes shall be protected by suitable
welding shields equipped with appropriate ocular
protection filters.
– Where environments are subject to pedestrians and
traffic ensure a protective screen is used to avoid
accidental arc glare.
– Do not weld in the vicinity of children or animals and
ensure no one is looking before striking up.
– In the welding environment, damaging levels of noise
can exist. Wear hearing protection if the process
dictates.
– Do not touch hot equipment or metal. Allow the weld
time to cool, use the correct tool and wear protective
welding gauntlets.
– Wear flame retardant clothing (leather, wool, etc.).
– Take care when adjusting or maintaining the torch
that it has had time to cool sufficiently and is
disconnected.
– The arc generates
• ultra-violet radiation (can damage skin and eyes);
• visible light (can dazzle eyes and impair vision);
• infra-red (heat) radiation (can damage skin and
eyes);
– Such radiation can be direct or reflected from
surfaces such as bright metals and light coloured
objects.
Gas cylinders:
– Gas cylinders should be located or secured so that
they cannot be knocked over.
– Shield gas containers can explode if damaged. Take
care when handling.
– Ensure gas cylinders are shut-off when not in use
and between operations.
– Take care that no build-up of gas is permitted to form
in confined areas.
– Cylinders must be in an upright position at all times
during use and storage.
– The gas cylinder must never come in contact with
the electrode.
– Follow the manufacturer’s instructions for handling,
storing, and using the gas bottle correctly and safely.
– Use the correct equipment to connect the gas bottle
to the welding torch.
Limitations:
– Do not use for:
• operations in severe conditions (e.g. extreme
climates, freezer applications, strong magnetic
fields, etc.);
• operations subject to special rules (e.g.
potentially explosive atmospheres, mines, etc);
• operations that require ingress protection greater
than IPX0, e.g. in rain or snow, etc;
General:
– Training should be sought out in
• the safe use of this equipment;
• the processes;
• the emergency procedures;
– Welding power sources are not to be used for pipe
thawing.
– Take precautions against toppling over, if the power
source shall be placed on a tilted plane.
– All equipment should be kept in good working
condition, inspected and, when defective, promptly
repaired or withdrawn from service – All equipment
should be placed so that it does not present a
hazard in passageways, on ladders, or stairways,
and should be operated in accordance with the
manufacturer’s instructions.
– In the vicinity of an arc, non-reflective curtains or
screens shall be used to isolate persons from
radiation. A warning, e.g. a symbol for eye
protection, should refer to the hazard of arc
radiation.
– 4 –
the arc
4. UNPACKING AND
CHECKING
4.1 PACKAGING
Carefully remove the product from the packaging and
examine it for any sign of damage. Check contents
against the parts shown in Fig A. If any part is damaged
or missing, please contact the Draper Help Line (see
back page). Do not attempt to use the product!
The packaging material should be retained during the
warranty period, in case the product needs to be
returned for repair.
5. TECHNICAL DESCRIPTION
5.1 PRODUCT IDENTIFICATION – FIG.A
Warning!
• Some of the packaging materials may be harmful to
children. Do not leave any of these materials in
reach of children.
• If any of the packaging is to be thrown away, make
sure they are disposed of correctly, according to local
regulations.
(6)
(17)
(14)
Peak Current
Duty Ratio
Base Current
TIG WELD
200A AC/DC
Spot Welding
PULSE
COMPOSITE
PULSE
Pulse
Frequency
(5)
Clear Depth
AC Frequency
Clear Width
SAVE LOAD
A
%
S
Hz
Slope-down
Arc-ending
Current
OUTPUT WAVE
(7)
(9)
(8) (10)
(13)
Post-gas
MMA
TIG
GAS
CHECK
DC
AC
(11)
(12)
(6) Carry handle.
(7) TIG torch.
(8) Earth clamp.
(9) MMA Electrode holder.
(10) Foot pedal.
(11) Control panel (see page 8 for
(12) 2nd Earthing point.
(13) Gas input.
(14) Power supply cable.
(15) ON/OFF switch.
(16) Brush/hammer.
(17) Face mask.
technical overview).
(1)
(2)(3)(4)
FAULT
Hot Start
Arc Start
Current
Pre-flow
STANDARD
ARC-ENDING
REPEAT
SPOT WELDING
(1) MMA electrode connection.
(2) 2 Pin TIG torch trigger/foot
pedal connection.
(3) 6 Pin foot pedal control
connection.
(4) TIG torch connection.
(5) Earth clamp connection.
Note: For details of our full range of accessories and consumables, please visit drapertools.com
– 5 –
(16)
(15)
FIG.A
5.2 DTi – DIGITAL TECHNOLOGY INSIDE
Draper Tool’s newest models of welding machines
contain the latest digital technology, integrated into every
element of the machine’s control, improving every
aspect of performance.
More Functions
Internal micro-processors combined with digital circuitry
allow more functions to be managed within a single
machine, resulting in highly sophisticated machines
which are compact and lightweight.
Superior Performance
Digital signal stabilisation maintains the machine settings
for optimum performance during use, automatically
adjusting to humidity, temperature and other
environmental factors to ensure superior welding
performance in any conditions.
Precision Control
Digital technology enables various machine settings to
be applied with a high level of accuracy, giving the user
precision control of every element of their welding.
Check that the electrical supply delivers the voltage and
frequency corresponding to the product and that it is
fitted with a delayed fuse suited to the maximum
delivered rated current.
Note: This product has been set to the highest voltage
at the factory.
6.4 RATING PLATE
6. ASSEMBLING THE WELDER
6.1 GENERAL
The excessive weight of this product means it should be
handled by two persons. It contains dedicated circuitry
and must be handled with care.
6.2 LOCATION
Locate the machine close to the correct power supply
and allow a 500mm air gap around to ensure sufficient
ventilation. There is a cooling fan located at the rear of
the machine housing which must be kept clear. Equally,
ensure no debris can be drawn into the machine.
6.3 CONNECTION TO THE POWER
SUPPLY
Make sure the power supply information on the product’s
rating plate is compatible with the power supply you
intend to connect it to.
A suitable plug must be fitted by a qualified
electrician.
This product’s wiring has insulation stripped in
preparation for wiring a 32A plug (not supplied).
It is designed for connection to a 32 amp power supply
rated at 230V AC.
Because it is constructed mostly of metal parts, it is a
Class 1 machine; meaning, it must have an earth
connection in the power supply. This is to prevent
electrocution in the event of a failure.
Note: Remove the plug from the socket before carrying
out adjustment, servicing or maintenance.
– 6 –
IP21S
1~50/60Hz
1
f
2
f
Unit’s
protection class
rating.
MMA welder.
TIG welder.
Semiconductor
diode rectifier.
Power supply
identifier, e.g.
socket with 3
poles.
Direct Current
(DC) delivery.
Inverter
frequency
conversion
†
stage.
Transformer.
†
Constant
current.
Alternating
Current (AC)
delivery.
Do not
dispose of
WEEE* as
unsorted
municipal
waste.
X
UK Conformity
Assessed.
European
conformity.
Secondary
no-load
voltage.
Rated supply
voltage.
Rated duty
cycle.
†
†
U1=230V
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