WilTec TIG180 User manual

Operation Manual
Welding Machine
61707, 61708
Illustration similar, may vary depending on model
Read and follow the operating instructions and safety information before using for the first time.
Technical changes reserved!
Due to further developments, illustrations, functioning steps and technical data can differ insignificantly.
Updating the documentation
If you have suggestions for improvement or have found any irregularities, please contact us.

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The information contained in this document may alter at any time without previous notice. It is prohibited
to copy or spread any parts of this document in any way without prior written allowance. All rights re-
served.
The WilTec Wildanger Technik GmbH cannot be held accountable for any possible mistakes in this
operating manual, nor in the diagrams and figures shown.
Even though, the WilTec Wildanger Technik GmbH has undergone biggest possible efforts to ensure
that the operating manual is complete, faultless and up to date, mistakes cannot be entirely avoided.
If you should find a mistake or wish to make a suggestion for improvement, we look forward to hearing
from you.
Send an e-mail to:
[email protected]
or use our contact form:
https://www.wiltec.de/contacts/
The most recent version of this manual in various languages can be found in our online shop via:
https://www.wiltec.de/docsearch
Our postal address is:
WilTec Wildanger Technik GmbH
Königsbenden 12
52249 Eschweiler
Germany
Do you wish to pick goods up? Our pick-up address is:
WilTec Wildanger Technik GmbH
Königsbenden 28
52249 Eschweiler
Germany
To shorten the waiting time and allow for a rapid on-site transaction, we ask you to call us previously or
placing your order via the webshop.
E-mail: [e-mail]
Tel:[phone]
Fax: [phone]
To return orders for exchange, repair or for other purposes, please use the following address. Attention!
To allow for a smooth execution of your complaint or return, it is important to contact our customer
service team before returning the goods.
Returns Department
WilTec Wildanger Technik GmbH
Königsbenden 28
52249 Eschweiler
E-mail: [email protected]o
Tel:[phone]
Fax: [phone]

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Introduction
Thank you for purchasing this quality product. To minimize the risk of injury we urge that our clients
take some basic safety precautions when using this device. Please read the operation instruc-
tions carefully and make sure you have understood its content.
Keep these operation instructions safe.
Intended use
•This device may only be used for its intended purpose as specified. Any use going beyond this
is prohibited!
•The user/operator is liable for any damage or injury of any kind resulting from improper use.
•Only welding electrodes suitable for the device may be used.
•Compliance with the safety instructions as well as the assembly instructions and the operating
instructions in the user’s manual are also part of the intended use.
•Persons operating the device and carrying out maintenance work must be familiar with it and
be informed about possible dangers. In addition, the applicable accident prevention regulations
must be strictly observed.
•Other general occupational health and safety regulations must also be observed.
•Changes to the device exclude any liability on the part of the manufacturer for any resulting
damage.
•The device has not been designed for commercial, manual or industrial use, but for private users
in the hobby and DIY sector. All other uses are expressly excluded and are considered improper.
Safety instructions
Refer to instruction
manual/booklet
Wear a welding
mask!
Wear a mask!
Wear
protective clothing!
Wear
protective gloves!
Use
hearing protection!
Wear
foot protection!
CAUTION:
Should you hand over the device to someone else, also hand over these operating instructions/safety
instructions. We do not accept any liability for accidents or damage caused by failure to observe these
instructions and the safety instructions.
CAUTION:
For your own safety, only operate the welding machine AFTER you have read the safety instructions.
CAUTION:
Only use the device according to its intended use listed in this manual. The welding machine must NOT
be used
•in insufficiently ventilated rooms,

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•in a damp or wet environment,
•in an explosive environment,
•for thawing pipes,
•near people with pacemakers,
•near easily inflammable materials.
Improper handling of this device can be dangerous for objects, animals, and people. The user of the
device is responsible for their own safety and that of other people. Be sure to read these instructions for
use and observe the regulations!
General safety instructions
•Observe general safety and accident prevention regulations. In addition to the information
in these operating instructions, the legal general safety and accident prevention regulations
must be observed.
•Pass the operating instructions on to third parties. Make sure that third parties use this
product only after having received the necessary instructions.
•This device is not intended to be used by persons with restricted physical, sensory, or
mental abilities or a lack of experience and/or knowledge, unless a person responsible
for their safety observes them or has given them instructions on how to use the device.
Children should be supervised to ensure that they do not play with the device. Children
are not allowed to use this device.
•Always be attentive and give your full attention to what you are doing. Do not work with
this product if you are inattentive or under the influence of alcohol, drugs, or medicine. A short
moment of inattention while using this device can lead to serious accidents and injuries.
Safety instructions for using your welding machine
•Ensure a safe stand. When setting up the device, ensure that it is on a firm and secure surface.
•Avoid contact with hot parts. Do not touch any hot parts on the device. Note that some com-
ponents store heat and can cause burns even after the device has been used.
•Check for damage. Check the device for any damage before putting it into operation. If the
device is damaged, it must not be put into operation under any circumstances.
•Do not use any sharp objects. Never insert sharp and/or metallic objects into the device.
•Do not misuse. Only use the device for the purposes described in this operating manual.
•Check regularly. The use of this device can lead to wear and tear on certain parts. Therefore,
check the device regularly for any damage and defects.
•Correct use of the power cord. Never pull the plug out of the socket by the power cable and
protect all cables from oil, sharp edges, and high temperatures. When working, be careful not
to touch the cables with hot objects. The power cord must not be damaged. If the cable is
damaged, it must be replaced with a new one.
•The device should not stand close to the wall or directly against the wall during opera-
tion, so that sufficient air can always be taken in through the opening slots.
•Arc welding generates sparks, molten metal parts, and smoke. Therefore, make sure to
remove all flammable substances and/or materials from the workplace.
•Do not weld on containers, vessels, or pipes that have contained flammable liquids or
gases.
•Avoid any direct contact with the welding circuit; the open circuit voltage that occurs bet-
ween the electrode clamp and the ground terminal can be dangerous.
•Do not store or use the device in a damp or wet environment or in the rain.
CAUTION:
•Radiation from the arc can damage the eyes and burn the skin.
•Arc welding creates sparks and drops of molten metal. The welded work piece begins to glow
and remains very hot for quite a long time.
•Arc welding releases fumes that are potentially harmful.
•Any electric shock can be fatal.

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•Define safety distances for the welding area and ensure that unauthorized persons and/or peo-
ple without protective clothing cannot enter the work area. Danger from flying sparks!
•Protect yourself and bystanders against the possible dangers of the electric arc.
Sources of danger during arc welding
There are quite a lot of dangers associated with arc welding. It is therefore particularly important
for the welder to observe the following rules in order not to endanger himself or others and to
avoid damage to man and machine.
•If electrical contact voltage occurs, immediately switch off the device and have it checked by
a specialist.
•Make sure that the electrical contacts on the welding current side are always in good
condition.
•Always wear insulating gloves on both hands when welding. They are a protection against
electric shock (e.g., with open-circuit voltage of the welding circuit), against harmful radiation
(heat and UV radiation) as well as against glowing metal and slag splashes.
•Wear sturdy, insulating footwear; the shoes should also insulate under wet conditions. Half-
shoes are not suitable, as falling, glowing metal drops cause burns.
•Wear suitable clothing, no synthetic clothing.
•Do not look into the arc with unprotected eyes, only use a welding protection shield with
protective glass in accordance with DIN. In addition to light and heat rays, which cause glare or
burns, the arc also emits UV rays. If there is insufficient protection, this invisible ultraviolet radi-
ation causes a very painful conjunctivitis, which only becomes noticeable a few hours later. In
addition, the UV radiation affects unprotected parts of the body such as harmful sunburn.
•People or helpers near the arc must also be made aware of the dangers and equipped
with the necessary protective equipment; if necessary, install protective walls.
•On containers in which gases, fuels, mineral oils, etc. are stored/have been stored, no
welding work may be carried out, even if they have been emptied for a long time, as there
is a risk of explosion with residues.
•Special regulations apply in rooms with fire or explosive hazards.
Risk of accident from electric shock
If no arc is burning, there is a no-load voltage U0between the earth terminal and the electrode
holder. This voltage can be life-threatening if the welder touches the metal clamping jaws of the
electrode holder and the workpiece with bare hands.
Narrow and hot rooms: When working in narrow or hot rooms, there is a special hazard situation
that can make it necessary to wear additional, special protective clothing. Under certain circumstances,
insulating intermediate layers (rubber mats, wooden gratings, etc.) must be used.
Risk of accident due to lack of air in confined rooms
A lot of smoke and gases are produced during welding. Make sure that smoke and gases can
always escape through a suitable opening. But never add oxygen. This would increase the risk of fire.
Protective clothing
While working, the welder must be protected against radiation and burns over his entire body by
clothing and face protection.
Risk of fire from spraying sparks
If molten or glowing metal or slag particles fall on flammable materials, they can ignite and cause
a fire. Therefore, remove all flammable objects from your work area before starting welding work.

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Risk of explosion
Both the welding sparks and the highly heated welding point can cause explosions. Therefore,
do not use the device in an explosive environment in which there are substances such as flam-
mable liquids, gases, and paint vapours.
Please also note:
•Remove the electrode from the electrode holder immediately after finishing your welding work
in order to avoid undesired arcing.
•When the welding machine is in operation, do not place the electrode tongs on the welding
machine itself or on any other electrical device.
•Before finishing your welding work, do not touch the electrode itself or any other metal object in
contact with the electrode.
•Immediately after finishing your welding work, interrupt the power supply of the device.
•Make absolutely sure that no cables are wrapped around your body.
•Make absolutely sure not to stand between the earth clamp and the electrode holder
when welding. The electrode holder and earth clamp must always be on the same side.
Handling shielding gas cylinders
Incorrect handling of shielding gas cylinders!
Incorrect handling of shielding gas cylinders can lead to serious and fatal injuries.
•Follow the instructions of the gas manufacturer and the pressure gas ordinance!
•Place the shielding gas cylinder in the receptacles provided and secure it with safety elements!
•Avoid heating the shielding gas cylinder!
Residual risks
Despite proper use, residual risks cannot be completely avoided. Due to the type of device, the following
hazards might occur:
a) eye injuries due to glare;
b) burns from touching hot parts of the device or workpiece;
c) risk of accident and fire due to spraying sparks or slag particles in the event of improper protec-
tion;
d) harmful smoke and gas accumulation in the event of a lack of air or insufficient extraction in
closed rooms.
To ensure a long service life of your welding machine, it should regularly be serviced and
cleaned. We recommend servicing every six months. If the device is used frequently, the mainte-
nance interval should be adjusted. Disconnect the welding machine completely from the power
supply during maintenance work. The system is largely maintenance-free. However, the follow-
ing work should be carried out:
•Keep the protective devices, air slots, and motor housing as free of dust and dirt as possible.
Wipe the device with a clean cloth and remove coarser dirt with compressed air. Then the lowest
possible pressure should be used.
•The device should be cleaned after each use.
•Pay attention to the condition of the welding cables, the electrode holder, and the earth clamp.
•Regularly clean the electrode holder of weld spatter and contamination. Provide the electrode
holder with a separating agent after cleaning to reduce the adhesion of splashes.
•Cables with worn or damaged insulation and thus live parts of the device are dangerous and
can impair the function of the device.
•Check that all screws, bolts, and nuts are properly tightened. If they are loose, tighten them
securely.

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Description of the product
•This compact welding device is not only ideal for mobile use, but also electrode and TIG welding
work with inert gas can be carried out with the device without any problems.
•The device impresses with its ease of use and its high performance, which makes it suitable for
both beginners and professionals. The welding machine has a powerful HF ignition, and the
welding current can also be continuously regulated in a range from 10 to 180 A, so you can
easily adapt it to your needs. In addition, the built-in overheating protection ensures safe work-
ing.
•Caution: The user must not dismantle, rebuild, or replace electrical components himself. Oth-
erwise, the guarantee of the device will expire.
Technical specifications
Model
TIG180
TIG200
Item number
61707
61708
Power voltage (V)
230
230
Frequency (㎐)
50
50
Input current (A)
180
200
No-load voltage (V)
65
65
Output current adjustment range (A)
10–180
10–200
Rate of work voltage (V)
17
18
Duty cycle (%)
60
60
No-load loss (W)
40
60
Pilot arc model
HF
HF
Efficiency (%)
80
80
Power factor
0,93
0,93
Isolation class
H
H
Protection type
IP21S
IP21S
Weight (㎏)
10
11
Total dimensions (㎜)
465×255×330
465×255×330

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Parts list
№
Name
№
Name
1
Indicator light
6
2-pole connector, control cable for TIG
standard welding torch
2
Welding current adjustment
7
Quick connector for TIG welding torch gas
conduct
3
Error light
8
Negative output terminal
–TIG: to connect TIG work piece cable
–MMA: to connect electrode holder or work
piece cable
4
Release time adjustment
9
MMA/TIG switch
5
Positive output terminal
–TIG: to connect TIG work piece cable
–MMA: to connect electrode holder or work
piece cable
10
Display
Installation
If you want to use a cable that is longer than the one supplied, use one with a larger cross-section to
avoid voltage drops. If the torch cable or the electrode holder cable is too long, it may interfere with the
operation of the arc and other functions of the system. For this reason, we recommend that the user
stick to the accessories supplied to ensure propre function of the device.
Connecting the input cable
•Each welding machine has a power cord, during the connection of which to the power supply
you have to make sure that it matches the input voltage of the device (230 V). If the mains cable
is connected to a higher voltage, the overvoltage protection is triggered. In this case, switch off
the power supply first and then connect the welding machine to a suitable mains connection
(230 V). You can now put the welding machine into operation.
•Make sure the power cord is securely connected to the power switch or plug and prevent oxi-
dation. Check whether the line voltage is within the wave range.

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Connecting the welding cables
Notes on laying welding current cables
•Completely unroll welding current cables, welding torches and intermediate hose packages.
•Avoid loops!
•In general, the cable must not be longer than necessary.
•Lay excess cable lengths in a meandering manner.
TIG welding: connection of welding torch, workpiece lead, and shielding gas supply
•Insert the welding current plug of the welding torch into the connection socket, welding current
“–,”and lock by turning to the right.
•Fasten the shielding gas connection of the welding torch to the quick connection for the gas
lead and lock it.
•Insert the control cable plug of the welding torch into the connection socket for the control ca-
ble/welding torch, and tighten it.
•Insert the cable plug of the workpiece lead into the connection socket, welding current “+,”and
lock by turning to the right.
MMA welding: connection of electrode holder and workpiece lead
The polarity depends on the information provided by the electrode manufacturer on the electrode pack-
aging.
•Insert the cable plug of the electrode holder either into the connection socket, welding current
“+”or “–,”and lock by turning to the right.
•Insert the cable plug of the workpiece lead either into the connection socket, welding current “+”
or “–,”and lock by turning to the right.
The welding machines are equipped with quick connectors for connecting the earth cable and the TIG
welding torch. In order to achieve optimal welding results, make sure that all connections of the welding
cables are tight and that the insulation is not damaged.
Make sure that the earth cable is connected to the workpiece as close as possible to the welding loca-
tion. Earth connections made at distant points reduce the efficiency and increase the risk of electric
shock and stray currents.
The electrode is both an arc carrier and an additional material. It consists of an alloyed or unalloyed
core wire and a jacket. The purpose of the jacket is to protect the weld pool from harmful air ingress and
to stabilize the arc. On the other hand, a slag forms that protects and shapes the weldseam. Almost all
metals can be welded with electrode welding.

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Installation picture
№
Name
№
Name
1
Pressure reducing valve
4
Welding torch
2
Shielding gas cylinder
5
Site power
3
Work piece
Operation
Inert gas arc welding
Caution: Errors in the shielding gas supply!
The unhindered shielding gas supply from the shielding gas cylinder to the welding torch is basic for
optimal welding results. In addition, a blocked shielding gas supply can destroy the welding torch!
•Make all shielding gas connections gas-tight!
•Before connecting the pressure reducer to the shielding gas cylinder, briefly open the gas cyl-
inder valve to blow out any dirt.
•Tighten the pressure reducer to the gas cylinder valve so that it is gas-tight.
•Screw the union nut of the gas hose connection to the “outlet side of the pressure reducer.”

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•Gas-tighten the union nut of the shielding gas line to the gas connection on the back of the
welding machine.
Setting the amount of shielding gas
Caution: electric shock!
The amount of shielding gas being set, the welding torch has no-load voltage or, if applicable, high-
voltage ignition pulses which can lead to electric shocks and burns if touched.
Keep the welding torch electrically isolated from people, animals, or objects while setting.
Set the amount of shielding gas on the flow meter of the pressure reducer.
Rule of thumb for the gas flow rate: The diameter in mm of the gas nozzle corresponds to ℓ⁄min gas flow
rate.
Example: 7 mm gas nozzle corresponds to 7 ℓ⁄min gas flow.
Caution: Bad shielding gas settings!
Both too low and too high a shielding gas setting can bring air to the weld pool and lead to pore formation.
Therefore: Adjust the amount of shielding gas according to the welding task!
Which gas is to be used for TIG welding?
Tungsten inert gas welding (TIG) is inert gas welding with a non-consumable electrode made of pure or
alloyed tungsten. The arc burns freely between the electrode and the workpiece.
The arc is protected by argon, helium, or their mixtures. For applications with high-alloy steels, argon-
hydrogen mixtures are also used, which can lead to a considerable increase in productivity.
•Make sure that the on/off switch is on and the power indicator is lit.
•Set the MMA / TIG switch to “TIG.”
•Open the shielding gas cylinder valve and set the required flow rate.
•The fan now starts. Pull the trigger on the welding torch to open the solenoid valve. The shielding
gas begins to flow out of the torch nozzle. At the same time, the HF ignition sounds.
•Set the welding current to match the thickness of the workpiece.
•The distance from the welding electrode to the workpiece must be 2–4 mm.
•Press the control key to ignite the arc. The HF noise disappears and you can start welding.
•Select the run-on time of the torch with the fall time control.
Description of MMA welding
The polarity depends on the information provided by the electrode manufacturer on the electrode pack-
aging.
•Make sure that the on/off switch is on and the power indicator is lit.
•Set the MMA/TIG switch to “MMA.”
•Set the welding current according to the thickness of the workpiece.
•The weldseam is adjusted with the welding current regulator.
•
Note: Do not touch any cables or plugs while the machine is operating, as this can result in injuries or
damages to the machine.

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Troubleshooting
Regular inspection and maintenance by a specialist are recommended.
Error
Solution
Power indicator is not lit,
fan does not work/no
welding output
•The power switch is out of order.
•Check that the electrical cable network (connected to the input
cable) is in operation.
•Check if the input cable is out of order.
Power indicator is lit, fan
does not work or does
not turn/no welding out-
put
•You may have incorrectly connected the device to the power sup-
ply. Connect the device to a 230 V input voltage and turn it on
again. If it has been connected to a larger voltage source, the
overvoltage protection has been triggered. Connect the device to
the required 230 V AC mains connection. Wait a short moment,
then switch the device on at the main switch.
•The 230 V power supply is not stable. Check the power cable for
damages and replace it, if necessary. Wait a short moment, then
switch the device on at the main switch.
•The cable is not plugged in properly. Check the plugs.
Fan is working, indicator
is not lit, no HF arc, no
arc
•Check whether the connectors are making bad contact.
•Check the control circuit and find out the reasons for the failure.
•Check whether the torch control cable is defective.
•Contact vendor in case you cannot solve the problem.
Error indicator is not lit,
HF arc-striking sounds,
but no welding output
•Check whether the torch cable is defective.
•Check whether the earth cable is interrupted or not connected to
the welding part.
•The output connection of the positive electrode or the torch power
supply is disconnected from the machine.
Error indicator is not lit,
HF arc-striking does not
sound, arc forms
•The power cable is not firmly connected to the power supply;
check the plug connection.
•The arc tip is oxidized or too far away; distance between elec-
trode and workpiece should be 2–4 mm. Clean tip or replace
electrode.
Error indicator is lit, no
welding output
•Possibly caused by overheating protection; switch the machine
off first and wait for it to cool down. Check if error remains after
re-turning on.
•TIG welding cannot trigger overheating protection.
Output current unstable
or out of potentiometer
control
Several connectors have bad contact, especially inserts, etc.; check
them.
Excessive weld spat-
ter/incorrect electrode
polarity
Electrode is connected incorrectly; replace the earth and handle cables.

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Disposal regulations
EU guidelines regarding the disposal of scrap electric appliances (WEEE, 2012/19/EU) were imple-
mented in the law related to electrical and electronic equipment and appliances.
All WilTec electric devices that fall under the WEEE regulations are labelled with the crossed-out
wheeled waste bin logo. This logo indicates that this electric equipment must not be disposed with the
domestic waste.
The company WilTec Technik GmbH has been registrated in the German registry EAR under the WEEE-
registration number DE45283704.
Disposal of used electrical and electronic appliances
(intended for use in the countries of the European Un-
ion and other European countries with a separate col-
lection system for these appliances).
The logo on the article or on its packaging points out
that this article must not be treated as normal house-
hold waste but must be disposed to a recycling collec-
tion point for electronic and electrical waste equipment.
By contributing to the correct disposal of this article you
protect the environment and the health of your fellow
men. Environment and health are threatened by inap-
propriate disposal.
Material recycling helps reduce the consumption of raw materials.
Additional information on recycling this article can be provided by your local community, municipal waste
disposal facilities or the store where you purchased the article.
Address:
WilTec Wildanger Technik GmbH
Königsbenden 12 / 28
D-52249 Eschweiler
Important notice:
The reprint or reproduction, even of excerpts, and any commercial use, even in part of this instructions
manual require the written permission of WilTec Wildanger Technik GmbH.