Ozito IWT-130U User manual

INVERTER
ARC/TIG
WELDER
130 Amp
ORIGINAL INSTRUCTIONS
SPECIFICATIONS
Welding Current: 10 - 130A
Arc Electrode Size: 1.6 - 3.2mm
Duty Cycle: Arc 25%@130A (25.2V) DC
TIG 25%@130A (15.2V) DC
Cord & Plug: 2.0m BS / 13A Plug
Weight: 5.46kg
IWT-130U
WHAT’S IN THE BOX
Accessories
Inverter Welder
TIG Torch
Earth Clamp
Arc Electrode Holder
WARRANTY
1216
5 6
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ozito-diy.co.uk
OZITO UK Unit 9 Stadium Court, Wirral International Business Park, Plantation Road, Bromborough, Wirral, CH62 3QG
All of our products undergo strict quality checks to ensure that they reach
you in perfect condition. In the unlikely event that your device develops a
fault, please contact our service department at the address shown on this
guarantee card. You can also contact us by telephone using the customer
service number shown. Please note the following terms under which
guarantee claims can be made:
1. These warranty terms regulate additional warranty services, which the
manufacturer mentioned below promises to buyers of its new products
in addition to their statutory guarantee claims are not affected by this
guarantee. Our guarantee is free of charge to you.
2. The warranty services only covers defects due to material or
manufacturing faults on a product which you have bought from the
manufacturer mentioned below are limited to either the rectication of said
defects on the product or the replacement of the product, whichever we
prefer.
Please note that our devices are not designed for use in commercial, trade
or professional applications. A guarantee contract will not be created if the
device has been used by commercial, trade or industrial business or has
been exposed to similar stresses during the guarantee period.
3. The following are not covered by our guarantee:
- Damage to the device caused by a failure to follow the assembly
instructions or due to incorrect installation, a failure to follow the operating
instructions (for example connecting it to an incorrect mains voltage or
current type) or a failure to follow the maintenance and safety instructions
or by exposing the device to abnormal environmental conditions or by lack
of care and maintenance.
- Damage to the device caused by abuse or incorrect use (for example
overloading the device or the use or unapproved tools or accessories),
ingress of foreign bodies into the device (such as sand, stones or dust,
transport damage), the use of force or damage caused by external forces
(for example by dropping it).
- Damage to the device or parts of the device caused by normal or natural
wear or tear or by normal use of the device.
4. Your Product is guaranteed for a period of 36 months from the original
date of purchase and is intended for DIY (Do It Yourself) use only. Warranty
excludes consumable parts. Guarantee claims should be submitted
before the end of the guarantee period within two weeks of the defect
being noticed. No guarantee claims will be accepted after the end of the
guarantee period. The original guarantee period remains applicable to the
device even if repairs are carried out or parts are replaced. In such cases,
the work performed or parts tted will not result in an extension of the
guarantee period, and no new guarantee will become active for the work
performed or parts tted. This also applies if an on-site service is used.
IN ORDER TO MAKE A CLAIM UNDER THIS WARRANTY YOU MUST
RETURN THE PRODUCT TO THE PLACE OF PURCHASE WITH YOUR
REGISTER RECEIPT.
Please refer to the restrictions of this warranty concerning wearing parts,
consumables and missing parts as set out in the service information in
these operating instructions.
CUSTOMER SERVICE HELPLINE
GB: 0151 294 4488
IRL: 1850 882711
Ozito-diy.co.uk

ONLINE MANUAL
Scan this QR Code with your
mobile device to take you to
the online manual.
1 Power On LED
2 Process Selection Switch
3 Thermal Overload LED
4 Positive Output Terminal
5 Negative Output Terminal
6 Welding Current Control
7 On/Off Switch (rear)
INVERTER WELDER
KNOW YOUR PRODUCT
1. CONTROLS
Welding Current Control
The welding current can be increased or
decreased by turning the Welding
Current control knob. The welding current
should be set according to the specic
application and material.
NOTE: Fully insulated lock-type connectors should
be used with the Inverter Welders Output Terminals
8 Earth Clamp
9 Arc Electrode Holder
10 TIG Torch WP-17V
11 Gas Flow Dial
12 Hammer Brush
13 Back Caps, Short & Long
14 Tungsten Electrode,
ø1.6mm & ø2.4mm
15 TIG Nozzles, 5 & 6
16 Collets ø1.6mm & ø2.4mm
17 Welding Mask
18.Collet Body, ø1.6 & ø2.4mm
Process Selection Switch
Select either ARC or TIG welding process.
Power ON LED
The Power ON Indicator
illuminates when the power
cord is connected to a live
mains outlet and the ON/OFF
switch is in the ON position
Thermal Overload
LED
When illuminated, wait
for the LED to extinguish
before resuming welding.
On/Off Switch
Is located on the rear of the Inverter welder.
1. To turn the welder on, select the ON (I) position
2. To turn the welder off, select the OFF (O) position
0 / OFF
I/ON
POSITIVE
OUTPUT
TERMINAL
NEGATIVE
OUTPUT
TERMINAL
Output Terminals
Negative (-) terminal is used
with the TIG Torch lead when
TIG welding.
Positive (+) terminal is used with
the ARC electrode lead when
ARC welding.
5 6
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Note: This can occur in heavy
use and does not indicate a
fault.
Note: Cooling fan operates
when ON.
OPERATION

2. ARC WELDING ASSEMBLY 3. ARC WELDING
Slag
Slag is refuse left around the weld
after welding, this should only be
removed after the weld has cooled
down and is no longer glowing.
Face shield must be worn during
removal of slag.
4. Install thin (uncoated)
end of Electrode into the
arc electrode holder.
5. Attach the Earth Clamp
to the work piece
ensuring area is free
from paint or dirt so that
there is a good electrical
connection.
3. Attach Earth Clamp lead
to the NEGATIVE (-)
output terminal. Insert &
rotate until connection is
rm.
70-80º
Strike
Keep Consistant
Height
2.0mm
Welding Direction
ARC
2. Attach Arc Electrode
Holder lead to the
POSITIVE (+) output
terminal. Insert & rotate
until connection is rm.
1. Set Process Selection
Switch to ARC
WELDING process.
Preparation
Before welding ensure that:
• You have read and understand the safety section of this
manual.
• There is sufcient ventilation, particularly at the front and rear
of the unit.
• You have an adequate re-ghting devices on hand.
Electrodes & Welding Current
The welding current must be regulated in accordance with the
diameter of the electrode and the thickness of the steel being used.
This will vary with the type of electrodes and material you are using.
Below is a guide suggesting suitable currents & thickness for welding
steel.
Electrode Diameter Welding Current (Amps) Thickness of Steel
1.6mm 35 - 45 1.5 - 2mm
2.5mm 60 - 100 2 - 4mm
3.2mm 100 - 130 3 - 6mm
6. Connect the Inverter welder power cord into a power outlet.
Striking the Arc
Lower the electrode slowly and proceed to strike the electrode tip
against the desired join area on the work piece as if you are striking
a match. As soon as you have the arc, try to maintain a distance
from the work piece equal to the diameter of the electrode being
used, eg 2.0mm electrode, 2.0mm gap.
WARNING!: ENSURE THE TOOL IS DISCONNECTED
FROM THE POWER SUPPLY BEFORE PERFORMING
ANY OF THE FOLLOWING OPERATIONS.
Before starting you will require a suitable Electrode according to the
specic material type and thickness.
WARNING!: ENSURE ALL OIL, PETROL AND
FLAMMABLE CONTAINERS HAVE BEEN REMOVED
FROM WELDING AREA.
CAUTION!: Ensure approved protective clothing and
welding helmet/mask is worn at all times to protect
your face and eyes from arc UV radiation and sparks.
WARNING!: Do not touch the electrode while the
welder is turned on
NOTE: Avoid use of long extension leads.

IWT-130
4. TIG WELDING ASSEMBLY
TIG
TIG Torch Assembly
Collet Body
1
Collet
Tungsten Electrode
2
Back Cap (Long)
5-6mm
4
Nozzle
3
TIG Nozzles
Come in a wide variety of shapes and
sizes depending on your torch and
your welding application.
Size #5, Ø 8mm
#6, Ø10mm
Collet Body
Collet bodies screw into the TIG torch
and accommodate various size tung-
sten and their respective collet.
Size 1.6mm I/D
2.4mm I/D
Collets
Directly hold the tungsten in place
when you tighten the back cap and
create the electrical contact necessary
for good current transfer.
Size 1.6mm I/D
2.4mm I/D
5 6
Back Caps
Apply pressure to the back end of the
collet to force it against the collet body.
This pressure holds the tungsten in
place and seals the torch head from
the atmosphere. Back caps simply twist
into the back of the torch to prevent the
tungsten from slipping.
Basic TIG Torch
The components parts of a WP-17V TIG torch, collet bodies and
collets are sized to match the electrode and should be tted in
matched sets.
6
6
Back Cap
Nozzle
Tungsten
Electrode Collet Body
Collet
Torch Body
Gas
When using the TIG function with
the Inverter welder, you will require
a gas regulator (owmeter & tank
gauge) connected to a bottle of inert
gas. We recommend that you check
for gas leakage prior to operation
of your machine and you close the
cylinder valve when the machine is
not in use.
1
Inert
GAS
Tungsten Electrode Preparation
Sharpening tungsten is very important for a nice ne arc strike.
Grind lengthwise, not radial
Preparation
Before welding ensure that:
• If you have not TIG welded before we recommend consulting
external information and practicing rst.
• You have read and understand the safety section of this
manual.
• There is sufcient ventilation, particularly at the front and rear
of the unit.
• You have an adequate re-ghting devices on hand.
WARNING!: ENSURE ALL OIL, PETROL AND
FLAMMABLE CONTAINERS HAVE BEEN REMOVED
FROM WELDING AREA.
2-1/2 Times
Electrode Diameter
Grind Lengthwise Not Radial
60 grit or ner
aluminium oxide
Flat spot 1/4 - 1/2 x
Electrode Diameter
These additional accessories are available at your local gas supplier
Tungsten Electrode
2% Cerium Tungsten (grey tipped).This
tungsten requires less amperage to
start so it is recommended for thinner
metals, it can be used to weld every
type of metal
Size Ø1.6mm x 175mm
Ø2.4mm x 175mm
TIG Torch Parts (included)

5. TIG WELDING
IWT-130U
Starting Arc
1. Hold electrode above work piece at weld start point and enable
output of inert gas.
2. Touch electrode to work piece for 1-2 seconds.
3. Slowly lift electrode, arc is formed when electrode is lifted
4. Tilt torch and travel at a consistent speed
Touch
1-2 Seconds
CAUTION!: Ensure approved welding helmet/mask is
worn at all times to protect your face and eyes from
arc rays and sparks.
1 2
Tilt
Welding Direction
75º
Slowly
3 4
IMPORTANT!: Check for gas leakage prior to
operation of your inverter welder. Close the cylinder
valve when the inverter welder is not in use.
2. Attach TIG Torch lead
to the NEGATIVE (-)
output terminal. Insert &
rotate until connection is
rm.
Lock
3. Attach Earth Clamp lead
to the POSITIVE (+)
output terminal. Insert &
rotate until connection is
rm.
5. Attach the Earth Clamp to
the work piece ensuring
area is free from paint or
dirt so that there is a good
electrical connection.
1. Set Process Selection
Switch to TIG WELDING
process.
4. Set up the gas hose and
pressure regulator.
WARNING!: ENSURE THE TOOL IS DISCONNECTED
FROM THE POWER SUPPLY BEFORE PERFORMING
ANY OF THE FOLLOWING OPERATIONS.
Before starting you will require a suitable Regulator and bottle of
Inert Gas.
1
Inert
GAS
6. Connect the Inverter welder power cord into a power outlet.
Different Types of Electrodes
Tungsten electrodes are colour coded at the end for easy
identication.
A couple of the most commonly used tungsten electrodes available
in Australia and New Zealand are listed below.
Tungsten Type:
2% Cerium Tungsten (Grey tipped).
This tungsten requires less amperage to start so it is recommended
for thinner metals, it can be used to weld every type of metal.
2% Thoriated Tungsten (Red tipped).
They are most commonly used electrodes and are preferred for their
longevity and ease of use. Best stability is achieved at medium cur-
rents, good arc starts. Commonly used for steel and stainless steel
applications.
Note: Avoid use of long extension leads .

Thermal Overload
All Welders have a feature called a duty cycle.
Duty cycle on a welder refers to the time in which the
welder operates during normal welding.
A welder can only weld for a certain continuous period of
time before it requires to cool down.
If the internal components of the welder should become
hot the welder could overheat. If the welder overheats the
Thermal Overload Protection feature will automatically
shut down the welder.
THIS CAN OCCUR IN HEAVY USE AND DOES NOT
INDICATE A FAULT.
The Welder will cease to weld and the Thermal Overload
LED light will turn on. This LED indication light is just
to inform you that your welder is becoming too hot and
requires to cool down to protect the internal components
of the welder. Do Not turn your welder Off as the welder
has an internal cooling fan and this will assist your
welder to cool down quicker. Reducing the cooling time
will enable you to get back to your welding job quicker.
Depending on how many Amps or how heavy the welding
you are doing the cooling time may take up to 10 Minutes
for your welder cool down so you can return to your
welding job.
IF YOUR WELDER OVERHEATS AND THE THERMAL
OVERLOAD PROTECTION ENGAGES DO NOT TURN
YOUR WELDER OFF AS THE FAN WILL ASSIST IN
REDUCING THE COOLING TIME.
Travel Speed
The electrode should be moved along in the direction of the joint being welded
at a speed that will give the size of run required. At the same time, the electrode
is fed downwards to keep the correct arc length at all times. Excessive travel
speeds lead to poor fusion and lack of penetration. While too slow a rate of
travel will frequently lead to arc instability,slag inclusions and poor mechanical
properties.
Electricity
The electricity ows through the electrode cable to the attached electrode. The
electricity will not leave the electrode unless it touches an earthed object.
Electricity always nds the fastest path to the earth. When the earth cable
clamp is connected to the metal work piece a direct earth connection is created
back to the welder. When the electrode makes contact with the earthed work
piece an arc is created. The electricity ows through the electrode, the metal
work piece and then through the earth cable straight back to the welder.
Earth Clamp
Prior to connecting the earth clamp it may be necessary to clean the surface
of the work piece using the metal brush. Attach the earth clamp rmly to the
work piece ensuring there is good metal to metal contact. Clamp it where it
will not be in the way. This clamp provides an earth connection back to the
welder. Always ensure the welder is disconnected from the power supply before
attaching electrodes into the holder.
Welded Joints
Butt Joint
Is the joining of two pieces of
material together along a single
edge in a single plane. Two
sheets of metal are laid side-by-
side and joined together along a
single joint
Fillet Joint
Is a type of joint used for welding
pieces or plates in which the
angle between them varies from
0°to 180°. The edge of one plate
is brought against the surface of
another not in the same plane.
The joint can be welded on one
or both sides.
Lap Joint
The edges of a plate are lapped
one over the other and the edge
of one is welded to the surface of
the other.
Corner Joint
A corner joint consists of two
pieces of material joined at their
edges to form an “L” shape.
ARC WELDING
Electrodes
Always store the electrodes in a dry place protecting them from moisture.
Should electrodes become damp or moist, bake them in an oven at 200 - 250˚C
for 2 hours. Unless the electrodes are vacuum packed, basic coated electrodes
will always require such baking prior to use.
Metal arc welding electrodes consist of a core wire surrounded by a ux
coating. The ux coating is applied to the core wire by an extrusion process.
The coating on arc welding electrodes has a number of purposes:
• To provide a gaseous shield for the weld metal, and preserve it from
contamination by the atmosphere whilst in a mol ten state.
• To give a steady arc by having ‘arc stabilisers’ present, which provide a
bridge for current to ow across.
• To remove oxygen from the weld metal with ‘deoxidised’.
• To provide a cleansing action on the work piece and a protective slag cover
over the weld metal to prevent the formation of oxides while the metal is
solidifying. The slag also helps to produce a bead of the desired contour.
• To introduce alloys into the weld deposits in special type electrodes.
Arc Length
To strike the arc, the electrode should be gently scraped on the work until
the arc is established. A simple rule for the proper arc length; it should be the
shortest arc that gives a good surface to the weld. A very long arc produces
a crackling or spluttering noise and the weld metal comes across in large,
irregular blobs and gives a rough surface nish to the weld. A short arc is
essential if a high quality weld is to be obtained but a excessively short arc will
cause sticking of the electrode and result in poor quality welds. For down hand
welding is to have an arc length no greater than the diameter of the electrode.
Electrode Angle
The angle that the electrode makes with the work is important to ensure a
smooth, even transfer of metal. When welding in down hand, llet, horizontal
or overhead the angle of the electrode is generally between 5 and 15 degrees
towards the direction of travel. When vertical up welding the angle of the
electrode should be between 70 and 80 degrees to the work piece.
IMPORTANT INFORMATION

DESCRIPTION OF SYMBOLS
SPARE PARTS
TROUBLESHOOTING
VVolts
~Alternating current
U0Non-load voltage
U2On-load voltage
t
WLoad time
ø Diameter
X Load duration rate
U1Rated AV input voltage
(with tolerance ±10%)
A/V Electric current adjustment
range, and the relevant
on-load voltage
IP Protection class
Direct Current (DC)
Suitable for welding in an
environment which has high
risk of electric shock
MAG welding Gas Tungsten Arc Welding
(GTAW)
Warning
Symbol of single-phase AV power and rated frequency
I1max
Rated maximum input current I1eff Maximum effective input current
Vmax
Max. wire feeding speed
A Amperes
Single-phase transformer- Rectifier
Do not operate in the rain
Read operator’s manual
1F1
F2
Hz Hertz
WWatts
t
rReset time
I
2Current rating
PROBLEM CAUSE REMEDY
GENERAL OPERATION
No Power Switch on rear is o Turn on by moving switch to up position
Power supply Test supply with another product, avoid using
extension leads.
Circuit breaker tripped Check the rating of the curcuit breaker on the supply
and other appliances conencted to the circuit.
The welder is a high power device and it is
recommended that is be the only appliance on the
circuit to ensure it has enough power to operate.
Diculty starting arc Incorrect settings, cable connection Check Arc/TIG switch is in correct postion.
Check earth and eletrode cables are in correct
terminals. Check cable conenctions to welder are
secure, rotate clockwise until rm.
Earth clamp conenction not adequate Check earth clamp has good connection to material
being welded. Surface for clamp conenction needs
to be bare metal, remove rust or paint.
Welding technique Hold electrode at correct angle, practice on scrap
material
Welder cuts out Thermal overload active The thermal overload light on the front panel will
be on and the welder will not operate until cooled
down and the light goes out. This is normal in heavy
welding, allow the welder to cool down.
ARC WELDING
Poor welding Incorrect or wet welding electrodes Select electrode type to suit material, electrodes
need to be dry.
Sticking welding
electrode
Settings Increase current to recommended
Material Clean area being welded to bare metal
Electrode type and size Check the electrode type and size is appropriate for
the material being used.
Electrode damage Replace with new welding rod
Welding current setting too highExcessive welding
electrode consumption
Reduce welding current
Electrode size to small for material Change to larger electrode
TIG WELDING
Poor welding Eletrode tip damaged Grind tip t point. Raplce with new TIG electrode
Gas supply Check the correct shield gas is being used. Check
gas supply connections and ow settings.
Sticking electrode Settings Check welder TIG settings
Technique TIG welding requires skill and practice, seek
assistance from experienced welder.
Spare parts can be ordered from the Special Orders
Desk at your local Bunnings Warehouse or Homebase
store.
For further information, or any parts visit
www.ozito-diy.co.uk or contact Ozito Customer Service:
Great Britain: 0151 294 4488
Ireland: 1850 882711
E-mail: [e-mail]

• Under no circumstances should the housing of the welder be opened.
• Always protect your eyes and face with a welding mask.
• Wear appropriate protective clothing such as a welding apron and sleeved gloves
etc.
• Avoid exposing skin as UV rays are produced by the arc.
• Screen off the work place to protect others working nearby from UV rays.
• Welding materials with contaminated surfaces may generate toxic fumes. Ensure
the surface is clean before welding. Avoid operating on materials cleaned with
chlorinated solvents or near such solvents.
• Do not weld metal equipment that holds/contains ammable materials, gases or
liquid combustibles.
• Zinc-plated or galvanized material should not be welded as the fumes created
are highly toxic.
• Do not use the welder in damp or wet conditions.
• Do not use cables with worn insulation or loose connections.
• Disconnect from the power supply before replacing electrodes.
• Avoid direct contact with the welding circuit.
• Do not use the welder to defrost piping.
• Ensure the welder is placed on a level surface to prevent overturning.
• Provide adequate ventilation or a means for removal of the welding fumes
produced (forced circulation using a blower or fan).
Fumes
Toxic gases are given off during the ARC welding process, which may collect in the
welding area if the ventilation is poor. Be alert at all times to the possibility of fume
build-up. In small or conned areas use a fume extractor.
Glare
The electric arc generated by the ARC process gives direct heat and ultraviolet
radiation. It is essential that the eyes of the operator and bystanders are protected
from the glare during welding.
ALWAYS USE A FACESHIELD OR WELDING HELMET FITTED WITH THE
CORRECT GLASS FILTER.
Heat
It is desirable that welding gloves are worn whilst welding. They will protect the
hands from ultra-violet radiation and direct heat of the arc.
OVERALLS should also be worn. They should be of type designed to be buttoned at
the wrists and the neck.
Dress
In addition to face shield, welding gloves and overalls, other types of protective
clothing should be worn when welding. Additional protective clothing such as a
leather apron, sock protectors and a hat will all assist in reducing any injuries due to
heat, sparks and slag produced during welding.
INVERTER WELDER SAFETY WARNINGS
WARNING! When using mains-powered tools, basic safety precautions, including the
following, should always be followed to reduce risk of re, electric shock, personal injury
and material damage.
Read the whole manual carefully and make sure you know how to switch the tool off in an emergency, before
operating the tool.
Save these instructions and other documents supplied with this tool for future reference.
Before you connect the equipment to mains supply make sure that the data on the rating plate are identical
to the mains data.
If the supply cord is damaged, it must be replaced by an electrician or a power tool repairer in order to avoid
a hazard.
Using an Extension Lead
Always use an approved extension lead suitable for the power input of this tool. Before use, inspect the
extension lead for signs of damage, wear and ageing. Replace the extension lead if damaged or defective.
When using an extension lead on a reel, always unwind the lead completely. Use of an extension lead not
suitable for the power input of the tool or which is damaged or defective may result in a risk of re and electric
shock.
WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and
instructions may result in electric shock, re and/or serious injury.
Save all warnings and instructions for future reference. The term “power tool” in the
warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power
tool.
1. Keep work areas clean. Cluttered work areas and benches can cause accidents.
2. Consider work area environment. Do not expose your equipment to high humidity or rain. Do not use
your equipment in damp or wet conditions. Keep the work area well lit. Do not use your tool where there
is a risk of causing re or explosion, e.g. in the presence of ammable liquids and gases.
3. Keep children away. Do not allow children, visitors or animals to come near the work area or to touch
the equipment or accessories.
4. Dress appropriately. Wear the appropriate protective clothing. Wear a protective hair covering to keep
long hair out of the way.
5. Guard against electric shock. Prevent body contact with earthed or grounded surfaces. Electrical
safety can be further improved by using a high sensitivity (30 mA / 30 mS) residual current device (RCD).
6. Do not overreach. Keep proper footing and balance at all times.
7. Stay alert. Watch what you are doing. Use common sense. Do not operate the equipment when tired.
8. Secure work piece. If required, use clamps or a vice to hold the work piece.
9. Extension leads. Before use inspect the extension leads and replace if damaged. When using the
equipment outdoors, only use extension leads intended for outdoor use and marked accordingly.
10. Use appropriate equipment. Only use the equipment as outlined within this instruction manual. Do not
force the equipment to the job of heavier duty equipment. The equipment will do the job better and safer
at the rate for which it was intended. Do not force the equipment.
WARNING! The use of any accessory or attachment, or performance of any operation with this
equipment other than those recommended in this instruction manual may present a risk of personal
injury.
11. Check for damaged parts. Before use carefully check the equipment and power lead for damage.
Check for misalignment and seizure of moving parts, breakage of parts, damage to guards and switches
and any other conditions that may affect its operation. Ensure the equipment will operate properly and
perform its intended function. Do not use the equipment if any parts are damaged or defective. Do
not use the equipment if the switch does not turn it on and off. Have any damaged or defective parts
repaired or replaced by an electrician or a power tool repairer. Never attempt any repairs yourself
12. Unplug the equipment. Unplug the equipment when it is not in use, before changing any parts,
accessories or attachments and before servicing.
13. Do not abuse the cord. Never carry the equipment by its cord or pull it to disconnect from the socket.
Keep the cord away from heat, oil and sharp edges.
14. Store equipment. When not in use, equipment should be stored in a dry, locked up or high place,out of
reach of children.
15. Maintain mains equipment with care. Keep the equipment clean and in good condition for better and
safer performance. Follow the instructions for maintenance and changing accessories. Keep handles
and switches dry, clean and free from oil and grease.
16. Have your tool repaired by an electrician or a power tool repairer. This power tool complies with
relevant safety requirements. To avoid danger, electrical equipment must only be repaired by qualied
technicians using original spare parts; otherwise this may result in considerable danger to the user.
17. Users. This equipment is not intended for use by young children or inrmed persons without supervision.
Young children should be supervised to ensure that they do not play with this equipment.
18. Replacement of the supply cord. If the supply cord is damaged, it must be replaced by an electrician
or a power tool repairer in order to avoid a hazard.
GENERAL POWER TOOL SAFETY WARNINGS
ELECTRICAL SAFETY

size 445 x 210 mm
Danger! - Read the operating instructions to re-
duce the risk of inquiry
Caution! Danger from electric shock.
Do not store or use the equipment in wet con-
ditions or in the rain. Use the equipment only
indoors.
The reprinting or reproduction by any other me-
ans, in whole or in part, of documentation and
papers accompanying products is permitted only
with the express consent of the iSC GmbH.
Subject to technical changes
The reprinting or reproduction by any other me-
ans, in whole or in part, of documentation and
papers accompanying products is permitted only
with the express consent of the iSC GmbH.
Subject to technical changes
IWT-130U
GB Additonal operating & safety instructions Inverter Arc/Tig Welder
Service information
We have competent service partners in all countries named on the guarantee certicate whose contact
details can also be found on the guarantee certicate. These partners will help you with all service re-
quests such as repairs, spare and wearing part orders or the purchase of consumables.
Please note that the following parts of this product are subject to normal or natural wear and that the
following parts are therefore also required for use as consumables.
Category Example
Wear parts*
Consumables* Welding Electrode
Missing parts
* Not necessarily included in the scope of delivery!
In the eect of defects or faults, please register the problem on the internet at www.isc-gmbh.info. Plea-
se ensure that you provide a precise description of the problem and answer the following questions in all
cases:
• Did the equipment work at all or was it defective from the beginning?
• Did you notice anything (symptom or defect) prior to the failure?
• What malfunction does the equipment have in your opinion (main symptom)?
Describe this malfunction.
Mayr/Product-ManagementWeichselgartner/General-Manager
- 135 -
explains the following conformity according to EU directives and norms for
the following product
Inverter Arc / Tig Welder IWT-130U (Ozito)
2014/29/EU
2005/32/EC_2009/125/EC
X2014/35/EU
2006/28/EC
X2014/30/EU
2014/32/EU
2014/53/EC
2014/68/EU
90/396/EC_2009/142/EC
89/686/EC_96/58/EC
X2011/65/EU
2006/42/EC
Annex IV
Noti ed Body:
Noti ed Body No.:
Reg. No.:
2000/14/EC_2005/88/EC
Annex V
Annex VI
Noise: measured LWA = dB (A); guaranteed LWA = dB (A)
P = KW; L/Ø = cm
Noti ed Body:
2012/46/EU
Emission No.:
Standard references: EN 60974-1; EN 60974-10;
Landau/Isar, den 20.10.2016
First CE: 16 Archive-File/Record: NAPR014332
Art.-No.: 44.722.50 I.-No.: 11016 Documents registrar: R. Gehard
Subject to change without notice Wiesenweg 22, D-94405 Landau/Isar
ISC GmbH · Eschenstraße 6 · D-94405 Landau/Isar
Declaration of conrmity
Beiblatt_IWT_130U.indd 1 06.03.2017 10:00:30

size 445 x 210 mm
Items supplied
Please check that the article is complete as
specied in the scope of delivery. If parts are
missing, please contact our service center or the
sales outlet where you made your purchase at
the latest within 5 working days after purchasing
the product and upon presentation of a valid bill
of purchase. Also, refer to the warranty table in
the service information at the end of the operating
instructions.
• Open the packaging and take out the equip-
ment with care.
• Remove the packaging material and any
packaging and/or transportation braces (if
available).
• Check to see if all items are supplied.
• Inspect the equipment and accessories for
transport damage.
• If possible, please keep the packaging until
the end of the guarantee period.
Danger!
The equipment and packaging material are
not toys. Do not let children play with plastic
bags, foils or small parts. There is a danger of
swallowing or suocating!
Proper use
The machine is to be used only for its prescribed
purpose. Any other use is deemed to be a
case of misuse. The user / operator and not the
manufacturer will be liable for any damage or
injuries of any kind caused as a result of this.
The equipment is to be used only for its prescri-
bed purpose. Any other use is deemed to be a
case of misuse. The user / operator and not the
manufacturer will be liable for any damage or inju-
ries of any kind caused as a result of this.
Please note that our equipment has not been de-
signed for use in commercial, trade or industrial
applications. Our warranty will be voided if the
machine is used in commercial, trade or industrial
businesses or for equivalent purposes.
Symbols and technical data
Input voltage: ............................230V~ 50 / 60Hz
Welding current: ................................... 10-130A
Arc electrode size: ........................... 1.6 - 3.2mm
Tungsten electrode size: ................. 1.6 / 2.4 mm
ARC duty cycle: ............... 25% / 130A (25.2) DC
TIG duty cycle:................. 25% / 130A (15.2) DC
Insulation: ................................................ Class I
Protection type:........................................IP 21 S
EN 60974-1 European standard for
welding sets for manual arc
welding with limited on time.
Single-phase static frequency
converter transformer rectierr
~ 50 / 60 Hz Alternating current and
rated frequency value [Hz]
U0Rated idling voltage [V]
130 A/ 25.2 V Maximum welding current and
130 A/ 15.2 V the corresponding
standardized operating
voltage [A/V]
Ø Electrode diameter [mm]
I2Welding current [A]
Line input; number of phases,
the alternating current symbol
and the rated frequency value
U1Line voltage [V]
I1max Highest rated value of the line
current [A]
I1e Eective value of the highest
line current [A]
HInsulation class
XOn-load factor
Symbol for manual arc
welding with sheated rod
electrodes
Symbol for TIG (tungsten
inert gas) welding
IP 21 S Protection type
Thoroughly read and
understand the operating
instructions prior to using the
welder
Welding
Electrode (Ø mm): Welding current (A)
1.6 35 – 45
2.5 60 – 100
3.2 100 – 130
Electrode (tungsten needle)
diameter (mm)
Welding current (A)
1.6 10 – 140
2.4 10 – 250
Caution!
Residual risks
Even if you use this electric power tool in ac-
cordance with instructions, certain residual
risks cannot be rules out. The following ha-
zards may arise in connection with the equip-
ment’s construction and layout:
1. Lung damage if no suitable protective dust
mask is used.
2. Damage to hearing if no suitable ear protecti-
on is used.
3. Health damage caused by hand-arm vibra-
tions if the equipment is used over a pro-
longed period or is not properly guided and
maintained.
Safety clothing
1. While working, the welder must protect his en-
tire body from radiation and burns by wearing
suitable clothing and a face guard.
2. Slip-on gloves made of a suitable material
(leather) must be worn on both hands. They
must be in perfect condition.
3. Suitable aprons must be worn to protect clo-
thing from sparks and burns. A safety suit and,
if necessary, head protection must be worn if
required by the type of work in question, e.g.
overhead welding.
4. The protective clothing used as well as all
accessories must be in compliance with the
“Personal safety equipment” EU Directive.
Protection from radiation and burns
1. Provide information about the risk to eyes at
the working site in the form of a poster with
the wording “Caution – do not look at the a-
mes”. Workplaces are to be screened o
wherever possible so that personnel in the
vicinity are protected. Unauthorized persons
are to be kept away from the welding work.
2. The walls in the immediate vicinity of statio-
nary workplaces should not have a light color
or a sheen. Windows up to head height are
to be protected against radiation passing th-
rough them or reecting o them, for example
by coating them with a suitable paint.
For EU countries only
Never place any electric power tools in your
household refuse.
To comply with European Directive 2012/19/EC
concerning old electric and electronic equipment
and its implementation in national laws, old
electric power tools have to be separated from
other waste and disposed of in an environment-
friendly fashion, e.g. by taking to a recycling
depot.
Recycling alternative to the return request:
As an alternative to returning the equipment to
the manufacturer, the owner of the electrical
equipment must make sure that the equipment
is properly disposed of if he no longer wants to
keep the equipment.The old equipment can be
returned to a suitable collection point that will
dispose of the equipment in accordance with the
national recycling and waste disposal regulations.
This does not apply to any accessories or aids
without electrical components supplied with the
old equipment.
1~ 50 / 60 Hz
Highest welding time rated value in continuous
mode tON (max) for highest welding current rated
value at an ambient temperature of 20 °C, expres-
sed in minutes and seconds.
Highest welding time rated value in intermittent
mode ΣtON for highest welding current rated value
at an ambient temperature of 20 °C over an un-
interrupted time of 60 min, expressed in minutes
and seconds.
1~ f1f2
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