Spartus ProTIG 225P User manual

User’s manual
Semiautomatic welder SPARTUS® ProTIG
225P AC/DC321P(W) AC/DC

WELDING EQUIPMENT SUITABLE FOR TODAY’S NEEDS
Thank you for purchasing our product!
You have made a right choice. Plasma welding and welding processes are
carried out in difficult conditions that expose welding equipment to extreme
tests of its strength. Only high quality equipment can ensure required reliability
and performance during realization of the above-mentioned processes. SPAR-
TUS® products are characterized by precisely such features: they are primarily
reliable and durable, but they are also versatile. We listen carefully to clients’
needs.Therefore, our offer covers such a wide assortment of products. Thank
you very much for your trust in our company. We would like to invite you to
familiarize yourself with the remaining products and offer at www.spartus.
info or directly at alocal distributor of SPARTUS® products.

Before using this product, read the instruction manual in its entirety, with understanding.
Keep the instructions for quick reference to it if necessary. Pay special attention to safety
instructions provided for your protection. In the event of any points of misunderstanding
instructions, contact your supplier or supervisor.
IMPORTANT!
TABLE OF CONTENTS
1. SAFE USE – HAZARDS ASSOCIATED WITH ARC WELDING AND PLASMA CUTTING .............. 2
1.1 General safety rules ................................................................................................................................................................... 2
1.2 Electric shock can kill ............................................................................................................................................................... 2
1.3 Welding arc radiation can be dangerous ......................................................................................................................... 3
1.4 Vapours and gases can be dangerous ............................................................................................................................... 3
1.5 Noise can be harmful .............................................................................................................................................................. 4
1.6 Fire or explosion hazard .......................................................................................................................................................... 5
1.7 Other hazards .............................................................................................................................................................................. 6
1.8 Other informations .................................................................................................................................................................... 6
1.9 Symbols used in instructions ................................................................................................................................................ 7
2. ELECTROMAGNETIC FIELD (EMF) ............................................................................................................ 7
3. ELECTROMAGNETIC COMPATIBILITY (EMC) ........................................................................................ 7
3.1 General informations ................................................................................................................................................................ 7
3.2 Assesment of area ...................................................................................................................................................................... 8
3.3 Methods of reducing emmisions ........................................................................................................................................ 8
4. CONFORMITY WITH STANDARDS ........................................................................................................... 8
4.1 CE marking .................................................................................................................................................................................... 8
4.2 Rating plate .................................................................................................................................................................................. 8
5. GENERAL DESCRIPTION ............................................................................................................................. 9
5.1 Purpose of use ............................................................................................................................................................................. 9
6. TECHNICAL SPECIFICATIONS .................................................................................................................... 9
6.1 Operation, storage and transport ....................................................................................................................................... 9
6.2 Technical parameters of device .......................................................................................................................................... 10
7. INSTALLATION AND USE ......................................................................................................................... 11
7.1 Proper cooling ........................................................................................................................................................................... 11
7.2 Movement and handling ...................................................................................................................................................... 11
7.3 Description of construction ................................................................................................................................................. 12
7.4 Connecting to power supply .............................................................................................................................................. 13
7.5 Installation – TIG welding ..................................................................................................................................................... 13
7.6 Installation – MMA welding ................................................................................................................................................. 15
7.7 Device control panel – using ............................................................................................................................................... 15
7.8 Remote control ......................................................................................................................................................................... 22
8. MAINTENANCE ........................................................................................................................................... 24
9. ENVIRONMENTAL PROTECTION ........................................................................................................... 24
10. TROUBLESHOOTING ................................................................................................................................. 25

USER’S MANUAL EN
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Arc welding and plasma cutting are processes
that can pose hazards for the operator and per-
sons in his vicinity. The operator and his close
surroundings are exposed, among others, to
the risk of fire, explosion, electric shock, bur-
ning, as well as the risk of getting injured by
moving parts of the device.
Once proper safety measures are provided,
electric welding and plasma cutting are rela-
tively safe processes. For this reason, it is cru-
cial to strictly follow the valid OSH principles
during welding operations.
The informations provided below do not re-
lease the operator from the obligation to follow
the OSH rules that are binding in his plant/
workplace.
1.1 GENERAL SAFETY RULES
Welding operators and persons working in
the vicinity of the welding process should be
made aware of the following hazards associa-
ted with arc welding. They should be made
aware of protective measures as specified in
relevant international and national standards
and regulations.
1.1.1 Equipment condition
and maintenance
• Check the technical condition of the device
and accessories before starting to weld/
plasma cutting. It is forbidden to use equi-
pment that is unserviceable.
• Equipment damaged or defective should
be immediately repaired or removed from
service.
1.1.2 Operation and carrying
• Apply appropriate protective measures in
the space around the zone, where welding
operations are expected to be carried out.
• All equipment should be placed so that it
does not present a hazard in passageways,
on ladders or stairways, etc.
• Falling objects can cause injuries or kill.
Protect device before accidentally falling.
• Welding equipment may be heavy (e.g. wire
feeder fitted with spool and harness). Care
shall be taken during manual handling.
• To handle heavy elements, use hoists/
trucks/transport equipment designed
especially for this purpose. Make sure
the weight ofequipment to be handled
does not exceed the admissible maximum
lifting capacity of used hoist/truck/transport
equipment.
• It is forbidden for unauthorized persons,
especially children, to be in the vicinity of
the device during its use.
•
The device is not suitable for pipe defrosting.
• Device use non-compliant with its intended
purpose is forbidden.
1.1.3 Training
• Only professionally trained and qualified
personnel may install, operate, maintain
and repair the device.
• For operators and their supervisors training
is essential in: the safe use of the equipment;
the processes; the emergency procedures.
1.2 ELECTRIC SHOCK CAN KILL
• Before starting to weld and during the wel-
ding process, the operator should insulate
himself from the ground and the environ-
ment by means of dry and undamaged
protective clothes. It is forbidden to work
on wet ground.
• It is forbidden to touch SK sockets ( „+” and/
or „-”) when the device is in operation (con-
nected to a power supply source).
• It is forbidden to touch live electric compo-
nents of the device.
1. SAFE USE – HAZARDS ASSOCIATED WITH ARC WELDING AND
PLASMA CUTTING

USER’S MANUAL
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• Power supply must never be connected
before the accessories of SK sockets/con-
nectors are properly installed in the device.
• Use dry and undamaged welding gloves
and protective clothing, in order to ensure
proper insulation of the body. It is forbidden
to touch with a bare hand any elements that
are parts of an electric circuit.
• The operator must always make sure that
there is a good electric connection of the
return conductor to the element to be wel-
ded. The connection should be located as
close to the welding zone as possible.
• Maintain the electrode grip, the welding
torch, the chassis ground clamp, welding
cables and the welding machine in proper
technical condition that ensures safe ope-
ration. Damaged cable insulation should be
replaced with new insulation.
• Never dip an electrode into water, to cool
it down.
• When working above the floor level (at
aheight), use a safety harness to protect
yourself against falling, in the case of po-
tential electric shock.
• Exercise special caution, when using the
device in small rooms or in rooms with
elevated humidity levels.
1.3 WELDING ARC RADIATION CAN BE
DANGEROUS
The arc generates:
• ultraviolet radiation (can damage skin and
eyes);
• visible light (can dazzle and impair vision);
• infrared (heat) radiation (can damage skin
and eyes).
Such radiation can be direct or reflected from
surfaces such as bright metals and light colo-
ured objects.
1.3.1 Eye and face protection
• Use welder’s helmet/shield with an appro-
priate filter to protect you face and eyes
against sparks and welding arc radiation.
• The shield / helmet should provide eye and
face protection against injuries that may
result in welding spatters.
• Welding helmet/shield should be made in
accordance with applicable standards.
1.3.2 Body protection
• The body should be protected by suitab-
le clothing in accordance with applicable
standards.
• Use appropriate protective clothing made
of durable and fire-resistant material, to
ensure proper skin protection.
• The use of neck protection can be necessary
against reflected radiation.
1.3.3 Protection of persons in the vicinity
of an arc
• Protect the remaining personnel present
in the vicinity of welding works against
negative impact of arc radiation and wel-
ding splatters. Warn them about the hazard
resulting from exposure to the welding arc.
In the vicinity of an arc, non-reflective cur-
tains or screens should be used to isolate
persons from the arc radiation. A warning,
e.g. a symbol for eye protection, should
refer to the hazard of arc optical radiation.
Welder’s assistants should also wear
appropriate protective clothing.
1.4 VAPOURS AND GASES
CAN BE DANGEROUS

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Arc welding and allied processes produce wel-
ding fume which may pollute the atmosphere
surrounding the work. Welding fume is a vary-
ing mixture of airborne gases and fine particles
which, if inhaled or swallowed, constitute a
health hazard.
The degree of risk is depend on:
• the composition of the fume;
• the concentration of the fume;
• the duration of exposure.
A systematic approach to the assessment of
exposure is necessary, taking into account the
particular circumstances of the operator and the
ancillary worker who can be exposed.
Welding fume may be controlled by a wide
range of measures, e.g. process modifications,
engineering controls, methods of work, personal
protection and administrative action.
First it is necessary to consider whether ex-
posure can be prevented by eliminating the
generation of welding fume altogether. Where
this cannot be done, measures for reducing the
quantity of welding fume generated should be
investigated, after which the control of welding
fume at source should be considered. The use
of respiratory equipment should not be con-
templated until all other possibilities have been
eliminated. Normally, respiratory protective
equipment should be used only as an interim
measure. However, there cannot be a situation
in which, in addition to ventilation, the use of
personal protection is necessary.
1.4.1 VAPOURS AND GASES.
ADDITIONAL PRECAUTIONS
• Welding operations can involve generation
of vapours and gases that are hazardous
to health. Inhaling the vapours should be
avoided. Keep your head away from vapours
during welding operations. Ensure proper
ventilation and/or mechanical welding ex-
haust draught to keep vapours and gases
away from the breathing zone.
• When welding is carried out in a confined
space, operators should only be permitted
to weld when other persons, who have
been instructed and who are able to react
in case of an emergency, are in the imme-
diate vicinity.
• In closed rooms or in certain circumstances
during outdoor operations, it may be re-
quired to use individual equipment for the
protection of the welder’s airways, e.g. a re-
spirator. Additional safety measures are also
required when galvanized steel is welded.
• Welding operations must not be performed
in the vicinity of chlorinated hydrocarbons
generated during degreasing, cleaning or
spraying. Heat and radiation generated
by the arc may enter into a reaction with
vapours of solvents, which may lead to the
formation of phosgene – ahighly toxic gas.
• The shielding gas used during arc welding
may force the air out of a room. This may
lead to a health hazard or even death. Pro-
per ventilation, especially in closed rooms,
should always be provided, to ensure appro-
priate amount of air that is indispensable for
safe breathing.
1.5 NOISE CAN BE HARMFUL
In the welding environment, damaging levels of
noise can exist. Continued exposure to a high
noise level on the unprotected ear is injurious.
The noise levels should be reduced to the lo-
west practicable level.
High levels may be tolerated for very short
periods by wearing adequate ear protection in
accordance with the national or local regulation.
In case of doubt, checks by an expert should be
made to establish noise levels in any particular
environment, and, if these are in excess of the
prescribed limit, one of the following alterna-
tives may apply:
a) insulation of the noise source as far as po-
ssible, e.g. by fitting silencers or sound proof
enclosures,
b) insulation of the operator from the noise

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source,
c) effective maintenance of sound protection
devices,
d) indication as„ear protection areas” where
applicable,
e) restriction of entry to these„ear protection
areas”to authorized persons,
f) protect your hearing with appropriate per-
sonal protection measures, e.g. earplugs or
hearing protectors.
1.6 FIRE OR EXPLOSION HAZARD
Arc welding and allied processes can cause fire
and explosions. Precautions should be taken
to prevent these hazards.
1.6.1 Fire hazard
• Before setting to perform welding opera-
tions, ensure that elements involving fire
hazard are removed from the zone where
welding operations will take place. If it is
impossible, protect all flammable elements
against the impact of sparks. Remember
that sparks and hot metal may penetrate
through small cracks and openings into the
adjacent area.
• Avoid welding in the vicinity of hydraulic
conduits.
• The welding arc throws sparks and splatters
out. Welders should wear clean and dry
protective clothing (staining with oil should
be avoided in particular) such as welding
gloves, welder’s apron, welder’s trousers,
welder’s boots, protective hood/cap, etc.
• When welding operations are not carried
out, make sure that no part of the electrode
comes into contact with the workpiece or
protective earthing. Accidental contact may
lead to overheating and create a fire hazard.
• The fire extinguisher should be ready for use
and located in an easily accessible place.
• The surroundings of the work should be
observed for an adequate period after its
termination.
• „Hot spots” and immediate surroundings
should be observed until their temperature
has dropped to normal.
1.6.2 Explosion hazard
It is forbidden to heat up, cut or weld tanks,
barrels or containers that contained toxic or
flammable materials. For there is an explosion
hazard, even if the containers have been emp-
tied and cleaned.
1.6.3 Use of cylinders with shielding gas
In case compressed gases are used in the work
place, apply special safety measures to prevent
dangerous situations.
• Use gas cylinders with appropriate shielding
gas, foreseen for a particular process. Addi-
tional equipment (pressure regulator, hoses,
connectors) should be in good technical
condition. A gas cylinder and accessories
should have the required valid attestations
and approvals for use.
• Gas cylinders should always be stored in
vertical position, fixed to an undercarriage
or permanent support.
• Gas cylinders should be placed far away
from areas, where they could be exposed
to the risk of being overthrown or suffering
physical damage.
• Ensure gas cylinders are at a safe distance
from places where electric welding or cut-
ting operations are to be performed, away
from other sources of heat, sparks or flames.
• Care shall be taken to prevent gas cylinders
in the vicinity of the workpiece becoming
part of the welding circuit.
• Never allow the electrode, electrode holder
or any other live electric part to get in con-
tact with the gas cylinder.

USER’S MANUAL EN
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• Keep your face and head away from the cy-
linder valve socket when the valve is being
opened.
• Special valve shield should always be in-
stalled during cylinder transportation or
when the cylinder is not used.
1.7 OTHER HAZARDS
Arc welding and allied processes carrying other
hazards not listed before.
1.7.1 Burns
• Never touch hot parts with bare hands.
• Before handling an element, wait until it
cools down.
• Use appropriate tools to grip and handle hot
elements and wear special welding gloves
and clothing that protects against burns.
1.7.2 Plasma arc is dangerous
Highly concentrated plasma arc poses a ha-
zard for health and life. It is forbidden to aim
plasma arc at people.
1.7.3 Welding wire can cause injuries
Accidental pressing of the button on the wel-
ding torch can cause welding wire to advance
in an uncontrolled manner. The welding wire
tip may be sharp.
Never aim the burner tip of the welding torch
at your face, eyes or other people.
1.7.4 Moving elements can be dangerous
All protective elements and device housing
should be in place and in good technical con-
dition. Keep your hands, hair, clothes and tools
away from gear wheels, fans and other moving
parts during their operation.
Do not bring your hands close to fan motors.
It is forbidden to stop a fan by pressing its axis.
1.7.5 HF – high frequency ignition may
cause interference
As welding by the TIG method or plasma cut-
ting involves high frequency ignition, it can
interfere with mobile phones, radio equipment,
TV equipment or improperly protected compu-
ters and industrial robots, which leads to total
disabling of such devices.
1.8 OTHER INFORMATIONS
When performing welding work, you must
apply equally to the health and safety requi-
rements contained in the current normative
acts, applicable in your country.

USER’S MANUAL
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WARNING!
The maximum voltage of 15kV. Accidental pressing of the microswitch
results in unintentional arc ignition. Never bring a bare hand close to the
electrode, when the device is connected to a power source.
1.9 SYMBOLS USED IN INSTRUCTIONS
We use this symbol to pay your attention about important information.
2. ELECTROMAGNETIC FIELDS (EMF)
Electric current flowing through any conductor causes localized electric and magnetic fields
(EMF). All welders should use the following procedures in order to minimize the risk associated
with exposure to EMF from the welding circuit:
• Route the welding cables together – secure them with tape when possible.
• Place your torso and head as far away as possible from the welding circuit
• Never coil welding cables around your body.
• Do not place your body between welding cables. Keep both welding cables on the same
side of your body.
• Connect the return cable to the workpiece as close as possible to the area being welded.
• It is forbidden to sit or lean on power source while working.
• Do not weld whilst carrying the welding power source or wire feeder.
WARNING!
The electromagnetic field (EMF) generated during welding (and allied processes) may interfere
with the operation of implanted medical devices for example: cardiac pacemakers. Persons with
implanted medical devices such as cardiac pacemakers are obliged to consult a doctor before
starting to weld/plasma cutting and to exercise special caution during work. It is forbidden for
such persons to be present in the vicinity of the place where welding/plasma cutting processes
are realized without previous consultation of a doctor.
3. ELECTROMAGNETIC COMPATIBILITY (EMC)
WARNING!
This Class A equipment is not intended for use in residential locations where the electrical
power is provided by the public low-voltage supply system. There can be potential difficulties
in ensuring electromagnetic compatibility in those locations due to conducted as well radiated
radio-frequency disturbances.
3.1 GENERAL INFORMATIONS
The user is responsible for installing and using the arc welding equipment according to the
manufacturer’s instructions. If electromagnetic disturbances are detected, then it shall be the
responsibility of the user of the arc welding equipment to resolve the situation with the tech-
nical assistance of the manufacturer. In some cases this remedial action may be as simple as
earthing the welding circuit. In other cases, it could involve constructing an electromagnetic
screen enclosing the welding power source and the work complete with associated input fil-
ters. In all cases electromagnetic disturbances shall be reduced to the point where they are no
longer troublesome.

USER’S MANUAL EN
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Welding and plasma cutting processes may emit additional interferences. User is
responsibility for the interferences caused by welding and plasma cutting.
3.2 ASSESMENT OF AREA
Before installing arc welding equipment, the user shall make an assessment of potential elec-
tromagnetic interferences in the surrounding area. The following shall be taken into account:
a) other supply cables, control cables, signaling and telephone cables, above, below and adja-
cent to the arc welding equipment,
b) radio and television transmitters and receivers,
c) computer and other control equipment,
d) safety critical equipment, for example guarding of industrial equipment,
e) the health of the people around, for example the use of pacemakers and hearing aids,
f) equipment used for calibration or measurement,
g) the immunity of other equipment in the environment. The user shall ensure that other equi-
pment being used in the environment is compatible. This may require additional protection
measures.
h) the time of day that welding or other activities are to be carried out.
The size of the surrounding area to be considered will depend on the structure of the building
and other activities that are taking place. The surrounding area may extend beyond the boun-
daries of the premises.
3.3 METHODS OF REDUCING EMMISIONS
Methods of reducing electromagnetic interference are listed in detail in the standard
EN 60974-9 –„Arc welding equipment – Part 9: Installation and use”.
4. CONFORMITY WITH STANDARDS
The SPARTUS® ProTIG 225P AC/DC and ProTIG 321P(W) AC/DC is in conformity with the re-
levant Union harmonization legislation:
LVD 2014/35/UE Low Voltage Directive
EMC 2014/30/UE Electromagnetic Compatibility Directive
harmonized standards:
EN 60974-1 Arc Welding Equipment – Part 1: Welding Power Sources
EN 60974-10 Arc Welding Equipment – Part 10: Electromagnetic Compatibility
Requirements
4.1 CE MARKING
CE marking is placed on the nameplate of device and/or on the front panel of device.
4.2 RATING PLATE
Rating plate and serial number are located on the device case.

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5. GENERAL DESCRIPTION
SPARTUS® ProTIG 225P AC/DC and ProTIG 321P(W) AC/DC
It is a modern inverter welder that allows TIG AC/DC and MMA AC/DC. ProTIG 225P AC/DC is
powered from a 230V one-phase network, with current up to 200A, and ProTIG 321P(W) AC/
DC – 400V three-phase network, with current up to 320A.
The high-class source allows you to set the following parameters in the TIG method:
• balance,
• frequency and AC wave forms,
• upslope/downslope time,
• for TIG Puls: puls current, base current, pulse frequency, pulse width,
• mode selection 2T/4T / SPOT,
• Pre Gas, Post Gas,
in the MMA method:
• welding current,
• Arc Force,
• Hot Start.
All settings are regulated by a modern LCD display. This not only facilitates control, but also
allows you to precisely set and adjust advanced parameters.
Thanks to the TIG Puls function, the device is perfect for welding very thin sheets and aluminum.
Machines have 10 memory channels. The user can easily save and recall the most used settings.
Modern design, LCD function panel and the possibility of wireless control in combination with
high-class components make the ProTIG 225P AC/DC and ProTIG 321P(W) AC/DC stand out on
the market.
The ProTIG 321PW AC/DC model is additionally equipped with an integrated liquid cooler, which
ensures efficient cooling of the gun during welding with high currents. The whole is placed on
a transport cart with space for a shielding gas cylinder.
The professional device of the SPARTUS® Pro line is perfect suited to the production sector and
industry.
5.1 PURPOSE OF USE
SPARTUS® ProTIG 225P AC/DC and ProTIG 321P(W) AC/DC welding machines are designed for :
• Tungsten Inert Gas welding (TIG),
• Manual Metal Arc welding (MMA).
6. TECHNICAL SPECIFICATIONS
6.1 OPERATION, STORAGE AND TRANSPORT
Conditions during operation, storage and transport
Range of ambient air temperature
during operation
-10°C to +40°C
Relative humidity of the air up to 50% at +40°C
up to 90% at +20°C
Ambient air free from abnormal amounts of dust, acids,
corrosive substances etc. other than those

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generated by the welding process
Base of the welding power source inclined up to 10°
Range of ambient air temperature
during storage and transport
-20°C to +55°C
Duty cycle (def.)
Duty cycle is the time during which You can weld or cut at a certain load without causing overload.
Itis expressed in percent for period of complete cycle which equals 10 minutes. For example: 60% duty
cycle means that for 6 minutes device can operate at given load, after that required 4 minutes time
break (no-load operation).
Protection against overheating (def.)
Security system from overheating will turn on when the welder is over-heat (possibility of welding
isturned off, abnormal indicator on front panel lights up). In such a situation, You should not turning
off the unit immediately. Wait some time until fan cools the unit. Time to return to the state from
overheating can take up to approx. 15 minutes.
The device has a degree of protection IP23S. Which means that it is intended to be used in closed and
covered areas and suitable for use outdoors. However it is not designed to be used outdoor during
precipitation if it is not covered.
6.2 TECHNICAL PARAMETERS OF DEVICE
ProTIG 225P
AC/DC
ProTIG 321P(W)
AC/DC
Input ~1 x 230V ±10% 50/60 Hz ~3 x 400V ±10% 50/60 Hz
Welding Current [A] 10 – 200 10 – 320
Duty cycle [%] 60
TIG PARAMETERS
Start Amps, End Amps 
Gas pre flow [s] 0.1 – 2
Up slope [s] 0 – 10
Down slope [s] 0 – 10
Gas post flow [s] 0 – 10
TIG PULSE mode 
Pulse Amps [A] 10 – 200 10 – 320
Base Amps [A] 10 – 200 10 – 320
Pulse Width [%] 5 – 95
Pulse frequency [Hz] 0.5 – 999
AC frequency [Hz] 50 – 250
AC Wave Forms square, sinusoidal, triangular
AC balance [%] 10 – 99
2T/4T control 
Arc ignition LIFT / HF
Output remote control 

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MMA PARAMETERS
MMA welding mode 
Welding current MMA [A] 10 – 200 10 – 320
Arc Force range [A] 0 – 10
Hot Start range [A] 0 – 10
No-load voltage [V] 66 61
OTHER
Current consumpiton [A] AC: TIG 20.4 / MMA 29.1
DC: TIG 21.5 / MMA 30.8
AC: TIG 17.6 / MMA 23.1
DC: TIG 19 / MMA 25.4
Power factor (cosφ) 0.99 0.7
Efficiency η [%] 80 85
Insulation class H
Protection class IP21S
Weight (W)* [kg] 16 27.8 (74.5)*
Dimensions (W)* [mm] 215 × 605 × 410 260 × 700 × 480
(600 × 1150 × 1200)*
* version 321 with a cooler
7. INSTALLATION AND USE
WARNING!
SPARTUS®ProTIG AC/DC machines are intended for professional and industrial applications.
Installation and use of the device may only be carried out appropriately trained professionals.
It is forbidden to grinding and/or carrying out other locksmith works or mechanical working
ofmetal in the vicinity of the ventilation opening of unit.
Qualified person (def.)
A person who has gained the relevant technical education, training took place and / or gained
experience to perceive the risk and avoid hazards during use of the product (IEC 60204-1).
7.1 PROPER COOLING
The unit should be placed stable on a dry and flat surface. Avoid too much slope and slippery
surfaces. Check regularly that the vents (inlet, outlet) are not covered. The minimum distance
between the welder vents and walls should be 50cm.
7.2 MOVEMENT AND HANDLING
Please take special care when moving the welding machine. It should be moved by using of
specially designed transport handles (version without welding cart).
Version with welding cart. The source is available on a specially constructed transport trolley
(platform), equipped with road wheels and a transport handle.
If transport handle (device/trolley) or trolley wheels are damaged, then it needs to be repaired
at an authorized service center.

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7.3 DESCRIPTION OF CONSTRUCTION
1Control plug socket (TIG)
2SK socket„–”
3Gas connector TIG
4SK socket„+”
5ON/OFF switch
6Power source input
7Liquid cooler composite cable socket
8Shield gas input joint
1
3
5
11
15
12
4
9
13
10
14
6
8
7
2
9Coolant connection – input (TIG)
10 Coolant connection – output (TIG)
11 Water cooling control connector
12 Water level calibration
13 Coolant connection – input (MIG)
14 Coolant connection – output (MIG)
15 Water cooling control connector

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7.4 CONNECTING TO POWER SUPPLY
Requirements for power network parameters (voltage, permissible range of mains voltage
fluctuations etc.) are given in the table with technical parameters of device and on the rating
plate of welding machine.
Before connecting the unit to the power source:
• Check whether the parameters comply with the requirements for unit.
• Check: mechanical condition of the power cord and plug. The connection status of the power
cord with plug and unit (loose not allowed). If the power cord or plug is damaged or loose
connection is between them, it is forbidden to connect the welder until fault has been rectified.
• The welder machine can be connected to the network only when the power socket is pro-
perly grounded.
7.4.1 Scheme of connection of power plug connector
WARNING!
It is forbidden bridging PE and N cables. it may cause serious risk of electric shock!
In some cases, colours of power cords may vary from those shown on diagram. For example
when the device has a four-wired three phase power cord. In this case, the PE protective
conductor (yellow-green) must be connected to the terminal which is provided for it . And
theother cables must be connected to the appropriate terminals L1, L2, L3. If one of the wires
colour is blue – do not connect it to the terminal N– neutral. In this case blue cable is one of
thephase conductors L1, L2, L3.
7.5 INSTALLATION – TIG WELDING
Before connecting hardware and shielding gas to the device, make sure that the device is discon-
nected from power source and switch 5is in the OFF position.
7.5.1 Cooler installation (ProTIG 321PW AC/DC)
1. Connect the control cable to the cooler sockets 15 .
2. Connect the control cable to the sockets in TIG equipment 7.
3. Unscrew the coolant cap 11 .
4. Pour coolant into the cooler approx. 8 liters (recommended by the manufacturer).
5. Screw the coolant cap.
L1
L1
L2
L3
N
L2
L3
PE
PE
L1, L2, L3 Phase conductors
PE Protective conductor
NNeutral conductor

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7.5.2 Connecting the gas cylinder
1. The cylinder with appropriate shielding gas, should stand upright and be secured against
tipping over in accordance with safety requirements.
2. Make sure that the valve cylinder is closed.
3. Connect properly gas regulator to cylinder valve.
4. Connect the gas hose into gas regulator outlet. Use special clamps to seal connection.
5. Connect gas hose to the device 8.
The valve in the cylinder must be opened immediately before welding.
After welding it should be closed.
7.5.3 TIG torch installation
1. Connect properly TIG torch plug into SK „-” 2.
2. Connect properly TIG torch control plug into control socket 1.
Pay attention to suitable fitting of control pins.
3. Connect gas hose into shield gas connector at the front panel 3.
4. Liquid cooled TIG torches: connect the end of liquid hose (input) to coupler 9.
5. Liquid cooled TIG torches: connect the end of liquid hose (output) to coupler 10 .
7.5.4 Connecting the device
1. Connect the cooler to the device (only for ProTIG 321PW AC/DC – see 7.5.1).
2. Connect the gas pipe to the device (see 7.5.2).
3. Connect the welding holders TIG (see 7.5.3).
4. Connect the return line to the SK socket„+”
4
, and the mass clamp to the welded element.
5. Connect the welding device to the power source in accordance with the guidelines (see 7.4)
6. Turn on the device by setting switch 5im the ON position.
7. The device is ready to work.
Control cable
Work cable TIG torch
Input 400V AC
Gas hose
Gas cylinder
Pressure regulator
Cooler Weld material

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7.6 INSTALLATION – MMA WELDING
Before connecting hardware and shielding gas to the device, make sure that the device is discon-
nected from power source and switch 5is in the OFF position.
The welding polarity depends on the type of electrodes used. Before connecting the cables refer to
the requirements specified by the manufacturer of electrodes.
1. Connect electrode cable plug into SK socket 2or 4.
2. Connect return cable plug into appropriate SK socket 2or 4.
3. Connect earth clamp into workpiece.
4. Connect the welder into power supply in accordance with appropriate guidelines (see 7.4).
5. Turn on the welder by setting power switch 5to the ON position.
6. The device is ready to weld.
7.7 DEVICE CONTROL PANEL – USING
7.7.1 Function panel description
Control cable
Work cable Electrode holder
Input 400V AC
Weld material
SAVE
1 s
3 s JOB
E
D
A
B
C
F
G
H
I
L
K

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AWelding mode key
BOutput waveform key
CTrigger mode selecting key 2T/4T
DWelding function key: Pulse/No Pulse/
Spot
EJOB key: save/recall mamory programs
FFunction 1 key
GParameter 1 key: Hot Start/Balance
HLCD screen
IParameter 2 key: Arc Force/
AC frequency
JCooling mode selecting key: gas/liquid
(only 321 model)
KFunction 2 key
LParameters select/adjust knob
7.7.2 A detailed description of selected buttons on the panel
BOUTPUT WAVEFORM KEY
• TIG DC / MMA DC – Direct Current.
• TIG AC / MMA AC (square wave output AC) – focuses arc for maximum penetration, fast
travel speed with best directional control.
• TIG AC (sine wave output AC) – traditional AC TIG welding wave form. It has quieter,„soft”
arc characteristic.
• TIG AC (triangle wave output AC) – reduces heat input for same current setting. Be especially
useful for welding thin metal.
FFUNCTION 1 KEY
Choice for the TIG method:
• Pre Gas – gas flow time before welding begins
• Initial current value
• Up Slope – welding current rise time
Choice for the SPOT welding mode:
• Pre Gas – gas flow time before welding begins
Choice for the JOB memory channels:
• activation of the saved memory channel
G
E
D
H
J
A
B
I
C
F
L
K

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L
W1 W2
A
B
G
I
KFUNCTION 2 KEY
Choice for the TIG method:
• Post Gas – gas flow time after welding
• Final current value
• Down Slope – welding current decrease time
Choice for the SPOT welding mode:
• Post Gas – gas flow time after welding
Choice for the JOB memory channels:
• delete of the saved memory channel
LPARAMETERS SELECT/ADJUST KNOB
The TIG method:
• peak current value
• base current value
• pulse frequency
• pulse current width
The SPOT welding mode:
• welding current
• welding time
• welding break time
Choice for the JOB memory channels:
• select a saved memory channel
PANEL DESCRIPTION DURING MMA WELDING
AWELDING MODE KEY – MMA
BOUTPUT WAVEFORM KEY– MMA DC / MMA AC
GHOT START – regulation range: 0 – 10
IARC FORCE– regulation range: 0 – 10
L
PARAMETERS ADJUST KNOB – re-
gulation: welding current, Hot Start
and Arc Force
W1 WELDING CURRENT
W2 WELDING VOLTAGE

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G
ID
C
B
A
L
FK J
W1 W2
P1
P2 P3
P4
PANEL DESCRIPTION DURING TIG HF/ TIG LIFT WELDING
AWELDING MODE KEY TIG HF OR TIG Lift
BOUTPUT WAVEFORM KEY – TIG DC / TIG AC (AC waveform: sine, square, triangle)
CTRIGGER MODE SELECTING KEY 2T/4T
DWELDING FUNCTION KEY: PULSE/NO PULSE /SPOT (SPOT function is not available
in Lift TIG welding)
GBALANCE – regulation range: 10 – 99
IAC FREQUENCY – regulation range: 50 – 250Hz
FPre Gas, gas ow time before welding begins, Up Slope
KPost Gas, gas ow time after welding, Down Slope
LPARAMETERS SELECT/ADJUST KNOB (see 7.7.2)
W1 WELDING CURRENT
W2 WELDING VOLTAGE
JCOOLING MODE SELECTING KEY: gas/liquid
P1 PULSE PEAK CURRENT
P2 PULSE BASE CURRENT
P3 PULSE FREQUENCY: 0.5 – 999Hz
P4 PULSE WIDTH: 5 – 95%
PANEL DESCRIPTION DURING TIG PULSE WELDING