Inverter Fusion i-tech mig350 User manual

i-TECH MIG350
Inverter MIG
Welding Machine
User Manual
Do not aempt to set up or operate this equipment unl you have read and fully
understood the contents of this manual. If you do not fully understand any of the
instrucons, please contact your supplier for further informaon and advice
before beginning any welding procedure.

Contents
1. General descripon.............................................................................................1
2. Warranty .............................................................................................................2
3. Safety...................................................................................................................2
4. Main parameters.................................................................................................3
5. Panel layout.........................................................................................................4
6. Set up & operaon for MIG welding...................................................................6
7. Set up & operaon for MMA welding.................................................................8
8. Cauon ................................................................................................................9
9. Maintenance .......................................................................................................9
10. Troubleshoong ...............................................................................................10
1. General Descripon
 The i-TECH MIG350 welding machine is manufactured with advanced inverter
technology
 IGBT technology, current control, high-quality, stable performance
 Closed loop feedback control, constant voltage output, workable under network
voltage uctuaon within ± 15%
 Suitable for welding medium thin plate more than 0.8mm
 Capable of MIG and MMA welding
 High duty cycles enable connuous welding for longer periods
 Adjustable welding voltage to enable excellent welding characteriscs
 High no-load and slow wire feed funcons increase the success rate of arc
starng
1

2. Warranty
1. Your i-TECH MIG350 welder is covered by a comprehensive 2 year return-to-
base parts and labour warranty.
2. Improper use, abuse or any aempt to repair the product by an unauthorised
third party will invalidate any warranty claim.
3. Any parts or consumables ed or used in conjuncon with the i-TECH MIG350
which aect the equipment operaon and which are deemed by Inverter Fusion
Ltd to be of inferior quality or not t for that purpose will be regarded as abuse
and will invalidate the warranty claim.
4. The claimant is responsible for all carriage, insurance and transportaon costs in
returning the product to Inverter Fusion Ltd.
5. Upon receipt and inspecon of the product, it will be repaired or replaced at the
discreon of Inverter Fusion Ltd. In the event of a chargeable repair, or a repair
being required that is not considered to be a warranty issue, the claimant will be
contacted for further instrucons.
6. Following the compleon of any authorised warranty claim work, the product
will be returned to the claimant at the cost of Inverter Fusion Ltd (UK only).
3. Safety
There are inherent safety issues whilst welding so please ensure you read this
manual carefully before commencing operaons and follow the safety guidelines
below to protect yourself and others from injury:
1. Whilst welding, ensure that you are working in a well venlated area to avoid
breathing in smoke and fumes.
2. Always wear a suitable welding mask/helmet, welding gloves and protecve
clothing whilst welding.
3. Never look at the welding arc when not wearing a welding mask or helmet.
4. Never touch the work piece with bare hands whilst it is sll hot.
5. When appropriate use a suitable welding screen or curtain to protect other
people.
6. Do not weld near ammable materials or combusble liquids or gases.
7. Ensure the earth return is connected appropriately to prevent danger of electric
shock.
8. Never touch moving parts on the machine, such as the fan, and ensure all doors,
panels and covers are closed and in place during operaon.
9. Magnec elds produced by the welder during operaon may aect cardiac
pacemakers — pacemaker users should consult a doctor before welding.
2

4. Main Parameters
3
Input Power Voltage 380v—415v three phase 50/60Hz
Input Current (A) 21
Output current range (A) 80-350
Output voltage (VDC) 13-31.5
Duty Cycle 80%
Power factor 0.93
Eciency 85%
Type of wire feeder Separate
Post-ow me (s) 2
Diameter of the coil (mm) 280
Diameter of the wire (mm) 1.0/1.2
Dimensions (mm) 565x283x553
Weight (kg) 41
Thickness of Wire(mm) ≥1.0
Insulaon class 1
Protecon class IP21

5. Panel Layout
5.1. Front panel
Power On
Indicator
LED
4
Voltage
Adjustment
Overheang
Warning LED
Euro welding
Torch
Connector
Earth Return
Current Adjustment
Inductor Balance
MMA Torch
Connecon
CO2 / Gas
Check
MIG / MMA
Selector
2 Touch / 4 Touch
Torch Selector
Wire Feed Buon
Wire Speed
Adjustment
Burnback
Adjustment

5.2. Back panel
Power on/o
switch
Input power cable
5
Shielding gas
hose connector
Heater plug for
CO2 gas feeds

Input power cable
6. Set Up & Operaon for MIG Welding
Please ensure you follow these instrucons whilst seng up your i-TECH MIG350.
6.1. Power cable connecon
Connect the power input lead to a suitable three phase plug.
6.2. Output cable connecon
1. Plug the fast connector to the on the panel board and ghten it
clockwise while the earth clamp at the other end is already connected to the
workpiece.
2. Connect the fast connector of the torch to the on the panel board and
ghten it clockwise.
6.3. Installaon of wire feeder
 Fix the wire reel to the internal spindle; make sure the hole of the wire reel
locates with the lug on the spindle.
 The wire should be unwound in a clockwise direcon. Cut o the curved part
which is ed around the xed hole.
 Unscrew the wire tension wheel and put the wire into the slot of the wire
feed wheel. Thread the wire into the torch, ghten the tension wheel so as it
grips the wire without slipping.
 Press the ‘wire-feeding’ buon to fast feed the wire out of the welding torch.
6

6.4. Connecon of Shielding Gas
N.B. Before connecng the gas regulator, release and shut o the gas several mes
in order to remove possible dust from the pipes.
6.5. Operaon
6.5.1. Set up
1. Turn on the gas switch on the welding machine, open the gas cylinder valve, and
adjust the ow meter to the desired posion.
2. Choose the aperture of the contact p of the welding gun according to the
diameter of the welding wire.
3. Adjust the voltage and current dials to required sengs.
4. Adjust the inductance dial in order to achieve the correct type of weld. This
seng is for adjusng the weld penetraon: high inductance is good for thicker
metals and low inductance for thin metals.
5. Adjust the burnback dial to the required seng.
6. Press the switch on the welding gun, then welding can be carried out.
6.5.2. Seng the welding current
Set the welding current to the required seng.
6.5.3. Seng the welding speed
The wire speed is regulated by the wire speed adjustment dial. Use this to set your
preferred wire speed to suit your style and technique.
6.5.4. Length of wire
The wire protruding from the nozzle should be an appropriate length. Longer wire
protruding from the nozzle can improve producvity, but if it is too long it can cause
excessive splaer. Generally, the length of wire protruding from the nozzle should
be 10 mes the diameter of the wire.
7

7. Set Up & Operaon for MMA Welding
Please ensure you follow these instrucons whilst seng up your i-TECH MIG350.
7.1. Power cable connecon
Connect the power input lead to a suitable three phase plug.
7.2. Output cable connecon
1. Plug the fast connector to the on the panel board and ghten it
clockwise while the earth clamp at the other end is already connected to the
workpiece.
2. Connect the torch to the MMA torch connecon on the front control panel and
ghten it clockwise.
3. Make sure the MMA torch is not touching the work before proceeding.
7.3. Operaon
 Ensure that the i-TECH MIG350 is switched o.
 Follow the above instrucons regarding all cable connecons.
 Set the i-TECH MIG350 to MMA funcon via the switch on the front control
panel.
 Switch on the i-TECH MIG350.
 Adjust the voltage and current dials to required sengs.
 Adjust the inductance dial in order to achieve the correct type of weld. This
seng is for adjusng the weld penetraon: high inductance is good for
thicker metals and low inductance for thin metals.
8

8. Cauon
8.1. Working environment
1. Welding should be carried out in a relavely dry environment with a humidity of
90% or less.
2. The temperature of the working environment should be -10°C to +40°C.
3. Avoid welding in the open air unless sheltered from sunlight and rain, and never
let rain or water inltrate the machine.
4. Avoid welding in dusty areas or where corrosive chemical gases are present.
5. Avoid MIG welding in environments with a strong airow.
8.2. Venlaon
The i-TECH MIG350 contains an inner fan which cools it eecvely, enabling it to
work steadily for longer periods. To enable the fan to work eciently, always
ensure that the louvers on the front panel are uncovered and unblocked and that
the minimum distance between the machine and other objects is 30cm.
8.3. Overheang protecon
If the machine has become overheated because of connuous welding for long
periods the overheat LED will light up and the overheat protecon system will begin
working, causing the machine to stop welding. If this occurs there is no need to
restart the machine — once it has cooled down the LED will go out and welding can
recommence.
9. Maintenance
1. Always use and store your i-TECH MIG350 in a clean, dry environment.
2. Regularly check that the cables and leads are in good condion.
WARNING
Improper use, abuse or any aempt to repair the product by an unauthorised
third party will invalidate any warranty claim.
Any parts or consumables ed or used in conjuncon with the i-TECH MIG350
which aect the equipment operaon and which are deemed by Inverter Fusion
Ltd to be of inferior quality or not t for that purpose will be regarded as abuse
and will invalidate the warranty claim.
9

10. Troubleshoong
Fault Cause Remedy
The power on
LED is not lit
Ensure that the machine is connected
to a suitable live mains power source
and is switched on
No mains power
available
The yellow LED
light is lit
The machine has
overheated because the
working duty cycle has
been exceeded
Stop welding for a while to allow the
machine me to cool down. Ensure
that the fan and output ducts are
free from obstrucon and that there
is adequate venlaon space around
the machine
No welding
output
Welding leads are
incorrectly ed
Check that the leads are ed to the
correct sockets and that the earth
return is connected to the work piece
MMA Welding
operaon is
errac or not as
required
Incorrect welding
current selected
Check that the current seng is
correct for the selected electrode
Faulty or damp
electrode Select an alternave electrode
Errac or
uncontrollable
MMA welding arc
Faulty electrode holder
or bad earth return
connecon
Check that the correct sized
components are ed and that the
electrode holder is in good condion.
Ensure that there is a good earth
return connecon with the work
piece
MIG welding wire
feed errac
Incorrect wire feed
roller
Check correct size wire feed roller is
ed
Incorrect feed roller
tension Check feed roller tension
Wire binding on reel Check wire will easily feed from roll
Nozzle blocked or wrong
size
Check correct size nozzle is ed in
torch
10

Heathpark Way, Heathpark Industrial Estate, Honiton, Devon, EX14 1BB
01404 549791
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Inverter Fusion Ltd @IFL_Welders