ANDELI MIG-270E User manual

USER`S MANUAL
MIG-270E

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Read me first
Thank you for using welder! For the important safety of your body,
please read this manual book and understand its contents before
operation. Thank you for your cooperation!

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Content
1. Use and Characteristic.................................................................................... 3
2. Safty Precaution............................................................................................... 3
3. Precautions of electromagnetic compatibility...............................................6
4. Main technical information.............................................................................. 8
5. Installation......................................................................................................... 9
6. Model establishment and illustration...........................................................10
7. Brief description of the principle...................................................................11
8. Operation and instruction..............................................................................12
9. Welding machine precautions and maintenance...................................... 22

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Use and Characteristic
Inverter MIG welding machine, combines 2 functions in one – MMA and MIG .
The machine is suitable for many different materials’ welding, such as carbon steel,
stainless steel, copper, titanium, and so on. It has good static load and dynamic
characteristic, complete control function, other advantages going as below:
IGBT high frequency soft switch transform，high efficiency, compact and
portable
Advanced control system, significantly improve the welding performance,
to meet the welding process requirements to a great extent
MIG and MMA 2 in 1
Easy to arc starting, stable arc, high performance
Small spatter,stable current, high reliability, good weld-seam shaping
Safty Precaution
Generally Safety Precaution
Ensure to follow precautions specified in this manual, or else, an accident
may happen.
The design and construction of input power supply, selection of installation
site and use of high pressure gas shall be performed according to the
relevant standards and rules.
Irrelevant personnel are not allowed to enter the welding workplace. Only
the qualified personnel can install, overhaul, maintain and operate the
welding machine.
Qualified staff is needed for installation, maintenance and use.
Make sure the welding machine is not used for other purposes except
welding (such as charging, heating and pipeline unfreezing, etc).
If the ground is uneven, please avoid dumping welding machine.
Avoid electrical shock or burn

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Touching electric parts is forbidden.
Ensure to invite professional electrician to ground the welding machine with
copper conductor with specific cross section.
Ensure to invite professional electrician to connect power source in welding
machine with copper conductor with specific cross section. The insulating
sheath cannot be damaged.
Ensure to insulate the body and base metal when working in the wet and
restricted area.
Please use safety net when working at heights.
Please close the input power when not in use.
Avoid welding fume and gas damaging human body
Ensure to use specified exhaust equipment to avoid gas poisoning and
suffocation.
The protective gas will be deposited around the container bottom to cause
suffocation. Pay attention to the ventilation.
Avoid welding arc, splash and welding slag damaging human
body
Ensure to wear protective glasses with enough overshadow. The arc will
result in ocular inflammation and the welding splash and slag will burn
eyes.
Ensure to use protective supplies for welding, such as leather protective
gloves, caftan, cap, welding spats and apron to avoid welding arc light,
welding splash and slag burning skin.
Avoid fire, explosion and fracture and other accidents
The welding place cannot have the combustibles because splash and hot
weld joint will result in fire.

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The cables and base metal must be connected firmly, or else, it may be
heat to result in fire.
Must not weld in the combustible gas or container with the combustibles, or
else, it may result in explosion.
Ensure to prepare fire extinguisher just in case.
To prevent the rotating moving parts wounding
Must not make fingers, hair and clothes close to the cooling fan and wire
feed roll and other rotating parts.
When feeding wire, must not make the welding gun end close to eyes, face
and body to avoid wire damaging person.
Avoid falling gas cylinder and breaking gas regulator
The gas cylinder shall be fixed reliably, or else it may dump to result in
human injury.
Must not put gas cylinder in a place with high temperature or sunshine.
When opening gas cylinder valve, must not make face close to the gas
outlet, or else high-pressure gas may damage person.
Ensure to use gas regulator provided by the company and follow the use
regulations.
Prevent the movement of welding
Must not stand under the welding machine and motion direction when
moving welding machine with fork lift truck or crane, or else, the welding
machine may fall to cause injury.
The rope sling shall bear enough pull force and cannot be broken when
suspending. The angle between rope sling and hook shall be no more than
30°.

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Precautions of electromagnetic compatibility
1. Overview
Welding brings electromagnetic interference.
Minimize the interference emission of arc welding equipment with proper
installation way and correct application method.
The products described in the manual belong to Class A equipment (all
occasions except residential area powered by public electrical power system).
Warning: Class A equipment is not applicable to residential area powered by
public electrical power system. It is difficult to guarantee electromagnetic
compatibility because of conduction and radiated interference.
2. Advice of environment assessment
Before installing the arc welding equipment, the user shall evaluate the
potential electromagnetic disturbance of the surrounding. The considerations are
as follows:
Check surrounding of arc welding equipment for other power cables, control
cables, signals and telephone wire.
Check for broadcasting and television launching and receiving equipment;
Check for computer and other controllers;
Check for high security level equipment, such as industrial protective
equipment;
Consider the health of surrounding staffs, such as staffs with hearing aid and
cardiac pacemaker;
Check for calibrating or detection equipment;
Pay attention to immunity to interference of other equipment. The user shall
make sure that the surround equipment can be compatible. The additional
protective measures may be required;
Welding or other activity time.
The environmental range is decided based on the building structure and
possible activities. This range may exceed the boundary of building.

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3. Method of reducing radiation emission
Public power supply system
The arc welding equipment shall be connected into public power supply
system with the method recommended by the manufacturer. In case of interference,
please take addition preventive measures, such as connecting filter with public
power supply system. Ensure to consider power able shielding for fixed arc welding
equipment. The power cables can be shielded with the metal pipe or other
equivalent methods. Ensure to keep electrical continuity for shielding.
Maintenance of arc welding equipment
Ensure to perform routine maintenance for arc welding equipment according to
the method recommended by the manufacturer. When welding equipment runs, all
equipment inlets, auxiliary doors and panels shall be closed and tightened
appropriately. The arc welding equipment cannot be changed in any form, unless
the relevant change and adjustment are allowed in the manual. The spark gap of
arc initiation device and arc stabilizing device shall be adjusted and serviced
according to the suggestion of manufacturer.
Welding cable
The welding cable shall be short as much as possible and close to each other.
Moreover, welding cable shall be next to or close to ground cable.
Equipotential lap
Pay attention to lapping of metal objects in the surrounding. The lapping of
metal objects and workpiece will increase job hazard. When the operator touches
these metal objects and electrode, he may suffer from electrical shock. The
operator shall be insulated from these metal objects.
Workpiece earthing
The workpiece may be not provided with earthing because of electrical safety
or workpiece position, such as hull or building steel frame. When earthing is
available for workpiece, radiation emission may be reduced.But it is not always the
case. Therefore, we must prevent the increased risk of electric shock of users
caused by the workpiece earthing or the damage of other electric equipment. When

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necessary, some workpiece should be directly earthed, but directly grounding is not
allowed in some countries, user can achieve this effect only by selecting the
appropriate capacitor according to the regulations of the host countries.
Shielding
The shielding of surrounding equipment and other cables can reduce the
electromagnetic interference. The whole welding area can be shielded for special
applications.
Main technical information
1、Main technical parameter
Model
MIG-270E
Function
MIG
TIG
MMA
Power Supply
Voltage(V)
220V±15%
Frequency(Hz)
50/60
Rated Input Power(KW)
5
3.7
6
Rated Input Current(A)
23
17
27
Effective Current(A)
14.5
10.8
17
Welding Current
Range(A)
20-160
No-Load Voltage(V)
55V
Duty cycle （%
40℃10min）
40%
160A,22V
160A,16.4V
160A,26.4V
100%
101A,19V
101A,14V
101A,24V
Power Factor
0.93
Protection Class
IP21S
Insulation Class
F
Cooling
AIR
Net Weight(KG)
About7.5
Dimension(MM)
406*171*245

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Installation
1. Environment
Install in a dry environment with humidity less than 90% at 20℃and 50% at
40℃.
The temperature should be in the range of -10℃-40℃when welding, and
-20℃-55℃for storage and transportation.
Shelter the machine from direct sunshine and rain. Avoid raindrops.
Avoid using it in an environment with strong air flow when TIG welding.
The inclination of the welding power is less than 100the altitude no more than
1000m.
Avoid using it in a dusty, acid or other corrosive environment.
The machine should be placed more than 20cm from the wall, and more than
10cm from other welding machines.
2. Requirement of the input power source
Waveform: standard pure sine wave
Fluctuation range: 220V15%
Frequency: 50Hz/60Hz
3. Input power
Model
MIG-270E
Input power
AC220V±15%,50/60Hz
Min. power of power grid
8
Input protection
Fuse
40
Circuit
breaker
63
Cable
input
4mm2
output
25mm2
ground
4mm2