Costway ET10011US User manual

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IGBT Inverter Welder
ET10011US
USER’S MANUAL
THIS INSTRUCTION BOOKLET CONTAINS IMPORTANT SAFETY INFORMATION. PLEASE READ AND KEEP FOR FUTURE REFERENCE.

Before You Start
Please read all instructions carefully.
Retain instructions for future reference.
Separate and count all parts and hardware.
Read through each step carefully and follow the proper order.
We recommend that, where possible, all items are assembled
near to the area in which they will be placed in use, to avoid
moving the product unnecessarily once assembled.
Always place the product on a flat, steady and stable surface.
Keep all small parts and packaging materials for this product
away from babies and children as they potentially pose a serious
choking hazard.
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Professional training is needed before operating the machine.
● Use labor protection welding supplies authorized by national security
supervision department.
● The operator must be qualified personnel with a valid "metal welding (OFC)
operations" operation certificate.
● Cut off power before maintenance or repair.
Electric shock—may lead to serious injury or even death.
● Install the earth device according to the application criteria.
● Never touch the live parts when skin bore or wearing wet gloves/clothes.
● Make sure that you are insulated from the ground and work piece.
● Make sure that your working position is safe.
Smoke& gas—may be harmful to health.
● Keep the head away from smoke and gas to avoid inhalation of exhaust
gas from welding.
● Keep the working environment in good ventilation with exhaust or
ventilation equipment when welding.
Welding is dangerous, and may cause damage to you and others, so take
good protection when welding. For details, please refer to the operator
safety guidelines in conformity with the accident prevention requirements of
the manufacturer.
1. SAFETY
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Arc radiation—may damage eyes or burn skin.
● Wear suitable welding masks and protective clothing to protect your eyes
and body.
● Use suitable masks or screens to protect spectators from harm.
Improper operation may cause fire or explosion.
● Welding sparks may result in a fire, so please make sure no combustible
materials nearby and pay attention to fire hazard.
● Have a fire extinguisher nearby, and have a trained person to use it.
● Airtight container welding is forbidden
● Must not use the machines for other purposes except welding, such as pipe
thawing, battery charging, heating.
Hot work piece may cause severe scalding.
● Do not contact hot work piece with bare hands.
● Cooling is needed during continuous use of the welding
torch.
Magnetic fields affect cardiac pacemaker.
● Pacemaker users should be away from the welding spot
before medical consultation.
Moving parts may lead to personal injury.
● Keep yourself away from moving parts such as fan.
● All doors, panels, covers and other protective devices
should be closed during operation.
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Please seek professional help when encountering
machine failure.
● Consult the relevant contents of this manual if you
encounter any difficulties in installation and operation.
● Contact the service center of your supplier to seek
professional help if you still cannot fully understand after
reading the manual or still cannot solve the problem
according to the manual.
2. GENERAL DESCRIPTION
Advanced IGBT inverter technology
● High inverter frequency greatly reduces the volume and weight of the
welder.
● Great reduction in magnetic and resistance loss obviously enhances the
welding efficiency and energy saving effect.
● Switching frequency is beyond audio range, which almost eliminates noise
pollution.
Leading control mode
● Advanced control technology meets various welding applications and
greatly improves the welding performance.
● It can be widely used in acid and basic electrode welding.
● Easy arc starting, less spatter, stable current and good shaping.
Features of MMA series
● Efficiency, energy saving, portable, stable arc, high no-load voltage, and
with good compensation of arc force, are able to meet various welding
requirements in field work.

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3. PARAMETERS
4. OPERATION PANEL CONTROL
Working voltage（V）
Frequency（Hz）
No-load voltage（V）
Output current （A）
Duty cycle（%）
Effiency（%）
Power factory
Insulation class
Protection class
Model
PARAMETERS
ET10011US
1~110/220V
50/60
63/65V±5V
27-200
30
85
0.7
F
IP21S
Panel functions and LCD display
illustration.
Note: Please install the machine strictly
according to the following steps.
Turn off the power supply switch before
any electric connection operation.
The protection class of this machine is
IP21S, so avoid using it in the rain.

(1) A primary power supply cable is available for this welding machine.
Connect the power supply cable to the rated input power.
(2) The primary cable should be tightly connected to the correct socket to
avoid oxidization.
(3) Check whether the voltage value varies in acceptable range with a
multi-meter.
(4) Insert the cable plug with electrode holder into the “+” socket on the
front panel of the welding machine, and tighten it clockwise.
(5) Insert the cable plug with work clamp into the “－” socket on the front
panel of the welding machine, and tighten it clockwise.
(6) Ground connection is needed for safety purpose.
Operation:
1.Put the switch to ON and then LCD would show, and fan is working and
welder is in normal working status.
2. Users could select suitable welding current according to the working
plate’s thickness, electrodes diameters, etc.
3. Clamp the electrode to electrode holder and scratch the arc to start
welding. (Working amp could be read on the LCD display)
Please note that this parameters is mainly for low carbon steel
welding.
5. Installation and Operation
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1. Working Environment
(1)Welding should be carried out in a dry environment with its humidity of
90% or less.
(2)The temperature of the working environment should be between 14 °F to
104°F.
(3)Avoid welding in the open air unless sheltered from sunlight and rain.
Keep it dry anytime and do not place it on wet ground or in puddles.
(4)Avoid welding in dusty areas or environments with corrosive chemical
gas.
(5)Gas shielded arc welding should be operated in an environment without
strong airflow.
Welding parameters table (for reference only)
Note: This table is suitable for common carbon steel welding. For other
materials, consult related materials and welding process for reference.
6. CAUTION
Electrode dia. (mm) Recommended
welding current (A)
Recommended
welding voltage (V)
1.0
1.6
2.0
2.5
3.2
4.0
5.0
6.0
20~60
44~84
60~100
80~120
108~148
140~180
180~220
220~260
20.8~22.4
21.76~23.36
22.4~24.0
23.2~24.8
23.32~24.92
24.6~27.2
27.2~28.8
28.8~30.4
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2. Safety Tips
Over-current/over-voltage/over-heating protection circuit is installed in this
machine. If the input voltage or the output current is too high or machine
inside temperature over heating inside, the machine will stop automatically.
However, excessive use (e.g. too high voltage) of machine may also damage
machine, so please note:
2.1 Ventilation
High current passes when welding is carried out, thus natural ventilation
cannot satisfy the machine's cooling requirement. Maintain good ventilation
through the louvers of the machine. The minimum distance between the
machine and any other objects in or near the working area should be 12".
Good ventilation is of critical importance for the normal performance and
lifespan of the machine.
2.2 Welding operation is forbidden while the machine is overloaded.
Remember to observe the max load current at any moment (refer to the
corresponding duty cycle). Make sure that the welding current should not
exceed the max load current. Overload could obviously shorten the
machine's lifespan, or even damage the machine.
2.3 Over-voltage is forbidden.
Regarding the power supply voltage range of the machine, please refer to
“Main Parameters” table. This machine is of automatic voltage compensation,
which enables the maintaining of the voltage range within the given range.
In case that the input voltage exceeds the stipulated value, it would possibly
damage the components of the machine.
2.4 A sudden halt may occur while the machine is of overload status. Under
this circumstance, it is unnecessary to restart the machine. Remain the
built-in fan working to lower the temperature inside the machine.
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(1)Check periodically whether the inner circuit connection is in good
condition (esp. plugs). Tighten the loose connection. If there is oxidization,
remove it with sandpaper and then reconnect.
(2)Keep hands, hair and tools away from the moving parts such as the fan to
avoid personal injury or machine damage.
(3)Clean the dust periodically with dry and clean compressed air. If welding
environment with heavy smoke and pollution, the machine should be cleaned
daily. The pressure of compressed air should be at a proper level in order to
avoid the small parts inside the machine to be damaged.
(4)Avoid rain, water and vapor in filtering the machine. If there is, dry it and
check the insulation with equipment (including that between the connections
and that between the connection and the enclosure). Only when there are no
abnormal phenomena anymore, then the machine can be used.
(5)Check periodically whether the insulation covers of all cables are in good
condition. If there is any dilapidation, rewrap it or replace it.
(6)Put the machine into the original packing in a dry location if it is not to be
used for a long time.
7. MAINTENANCE
WARNING
The following operation requires sufficient professional knowledge of
electric aspect and comprehensive safety knowledge. Operators should be
holders of valid qualification certificates which can prove their skills and
knowledge. Make sure the input cable of the machine is cut off from the
electricity utility before uncovering the welding machine.
This marking indicates that this product should not be disposed with
other household wastes. To prevent possible harm to the environment
or human health from uncontrolled waste disposal, recycle it
responsibly to promote the sustainable reuse of material resources. To
return your used device, please use the return and collection systems.
They can take this product for environmental safe recycling.
Correct Disposal of this product

We are still constantly improving this welder, therefore, some parts of this welder
may be changed in order to achieve the better quality, but the main functions
and operations will not be alternated and changed. Your understanding would be
greatly appreciated.
8. TROUBLESHOOTING
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Common Malfunction Analysis and Solution:
Malfunction Phenomena Cause and Solution
Turn on the welder, the display
shows normally, and there’s
also output current, but fan is
not working.
Display is normal, fan is
working normally, no output
current.
1. There’s any cable inside loose.
2. Fan supply is normal or not.
3. Fan is broken or not.
Turn on the welder, welding is
normal, then suddenly breaker
trips.
1. Maybe there’s electric leakage in power cable
connection, then the input current is too big and
trips.
2.The IGBT or bridge damages.
Electrode holder is getting hot
quickly.
Use bigger specs of electrode holder.
Lots of spattering in MMA
welding
Change the connections of electrode holder cable
and earth cable.
Turn on the machine, fan is
not working, there’s also no
output current.
1. Outside power supply is normal or not.
2. Power cable is good and connecting well.
3. Power switch is damaged or not.
1. Check if inside cable is good.
2. Check if inside connections are good.
3. Check if OC lamp is on, it’s electric circuit
problem.
Turn on the machine normally,
but in welding, output current
is small.
1.The potentiometer cable connection is not good.
2. The potentiometer damages.
3. Electric circuit has some problem.
WARNING
The following operation requires sufficient professional knowledge on
electric aspect and comprehensive safety knowledge. Operators should be
holders of valid qualification certificates which can prove their skills and
knowledge. Make sure the input cable of the machine is cut off from the
electricity utility before uncovering the welding machine.