SWP STEALTH DIGI-TIG180PD Operating Instructions Manual

DC INVERTER • DC TIG • DC MMA • WELDING MACHINE

Part No. 9010

DIGI-TIG180PD

OPERATING

INSTRUCTIONS

Suitable for
110V or 240V

SAFETY PRECAUTIONS

Follow these precautions carefully. Improper use of any welder can result in injury or death.

1. ONLY CONNECT MACHINE TO A POWER SOURCE FOR WHICH IT WAS DESIGNED.
THE SPECIFICATION PLATE ON THE MACHINE LISTS THIS INFORMATION. WHEN
WELDING OUTDOORS ONLY USE AN EXTENSION CORD INTENDED FOR SUCH USE.

2. ONLY OPERATE MACHINE IN DRY LOCATIONS AND ON CEMENT OR MASONRY FLOOR.
KEEP AREA CLEAN AND UNCLUTTERED.

3. KEEP ALL COMBUSTIBLES AWAY FROM WORK SITE.

4. DO NOT WEAR CLOTHING THAT HAS BEEN CONTAMINATED WITH GREASE OR OIL.

5. KEEP CABLES DRY AND FREE FROM OIL AND GREASE AND NEVER COIL AROUND
SHOULDERS.

6. SECURE WORK WITH CLAMPS OR OTHER MEANS – DON’T OVER-REACH WHEN
WORKING.

7. NEVER STRIKE AN ARC OVER A COMPRESSED GAS CYLINDER.

8. DON’T ALLOW THE INSULATED PORTION OF THE ELECTRODE HOLDER TO TOUCH
THE GROUND WHILE CURRENT IS FLOWING.

9. SHUT OFF POWER AND UNPLUG MACHINE WHEN REPAIRING OR ADJUSTING.
INSPECT BEFORE EVERY USE. ONLY USE IDENTICAL REPLACEMENT PARTS.

10. FOLLOW ALL MANUFACTURER’S RULES ON OPERATING SWITCHES AND MAKING
ADJUSTMENTS.

11. ALWAYS WEAR PROTECTIVE CLOTHING WHEN WELDING. THIS INCLUDES: LONG
SLEEVED SHIRT (LEATHER SLEEVES), PROTECTIVE APRON WITHOUT POCKETS, LONG
PROTECTIVE TROUSERS, BOOTS AND GLOVES WHEN HANDLING HOT MATERIALS.

12. ALWAYS WEAR A WELDER’S HELMET WITH PROTECTIVE EYE PIECE WHEN WELDING.
WEAR A PROTECTIVE CAP UNDERNEATH THE HELMET.

13. WHEN WELDING OVERHEAD, BEWARE OF HOT METAL DROPPINGS. ALWAYS PROTECT
THE HEAD, HAND, FEET AND BODY.

14. KEEP A FIRE EXTINGUISHER CLOSE BY AT ALL TIMES.

15. DO NOT EXCEED THE DUTY CYCLE OF THE MACHINE. THE RATED CYCLE OF A
WELDING MACHINE IS THE PERCENTAGE OF A TEN MINUTE PERIOD THAT THE
MACHINE CAN OPERATE SAFELY AT A GIVEN OUTPUT SETTING.

16. KEEP ALL CHILDREN AWAY FROM WORK AREA. WHEN STORING EQUIPMENT, MAKE
SURE IT IS OUT OF REACH OF CHILDREN.

17. GUARD AGAINST ELECTRIC SHOCK. DO NOT WORK WHEN TIRED. DO NOT LET BODY
COME IN CONTACT WITH GROUNDED SURFACES.

STEALTH DIGI-TIG180PD

MODEL: DIGI-TIG180PD

INPUT Voltage 1 x AC110V~120V 50Hz 1 x AC220V~240V 50HZ

No-load Voltage 70V

DC Current Adjusting Range 5~95A 5~160A

MMA Rated Output Current 90A 160A

Rated Duty Cycle 35%

DC Current Adjusting Range 5~110A 5~180A

TIG Rated Duty Cycle 60%

Peak Current 5~110A 5~180A

Standard Base/Peak Current Ratio 5~95%

PULSE Rated Duty Cycle 60%

TIG Pulse Width 5%~95%

Pulse Frequency 0.5~500Hz@DC

Current UP / DOWN Slope Time 0~10S

Initial Current / Welding Current 5~150%

Crater-Fill Current / Welding Current 5~95%

Pre Gas Flow Time 0~10s

Post Gas Flow Time 0~25s

Arc starting Mode HF/LIFT TIG

Efficiency ≥80%

Weight 10kg

Protection Class of Enclosure IP21S

1 MAIN USE AND RANGE

STEALTH DIGI-TIG180PD welding machine has two functions and can be used as DC MMA,
AC TIG, or DC/PULSE TIG welder.
All metals: copper, aluminium, titanium and stainless steel materials etc, can be welded
in all positions. The welding current is stable with stepless adjustments. The machine is
compact, lightweight and easily transported. It is particularly suited to pressure vessel,
building, shipping and petrochemical works.

2 TECHNICAL SPECIFICATIONS

STEALTH DIGI-TIG180PD

STEALTH DIGI-TIG180PD

3 OPERATING CONDITIONS AND WORK SURROUNDINGS

3.1 OPERATING CONDITIONS

Voltage of power source: AC 110V or AC 240V
Frequency: 50/60Hz
Reliable grounding protection

3.2 WORK SURROUNDINGS

3.2.1 Relative humidity: not more than 90% (average monthly temperature not more
than 20ºC)

3.2.2 Ambient temperature: –10ºC ~ 40ºC

3.2.3 The welding site should have no harmful gas, chemicals, moulds and
inflammable matter, explosive and corrosive medium.

3.2.4 Operating in rain is not permitted.

4 PRODUCT DESCRIPTION

• Before welding, the operator should read the operating instructions.

• Checkthemachineappearancefordeformationanddamage.

• Forthesafetyoftheequipmenttheoperatormustmakeanappropriateearthaccording

to the power supply system.

• Theweldingoperationshouldbecarriedoutinadryandwellventilatedarea.

• Checkthemachineoutputconnection.

• Themachineshouldnotbemovedorthecoveropenedwhenthepowerisonand

during the welding operation.

• Themachineshouldbemaintained,operatedandmanagedbyaqualiedperson.

• Thecurrentofthedistributionboardshouldbenolessthan40A.

5 PANEL FUNCTION DIAGRAMS

.

2

lead to connect the protection

20

24

21

22

7 8

4

9

10

1113

3

5

6

15

15

16

17

18 16

1

12

19

26

23

FRONT PANEL BACK PANEL

STEALTH DIGI-TIG180PD

1

23

4

3

10

11

12

8

5

25

13

9

6

19

1. Memory channel LED

2. Data Display meter

3. Parameter Select function

4. Power light indicator

5. S = Unit of up and downslope time and
pre and post flow time
% = unit of AC balance and peak time on
Hz = unit of pulse frequency

6. Parameter Select function: Pre-Flow, Start
Current, Up Slope, Welding Amps, Pulse
Peak Amps, Peak Time on, Pulse
Frequency, Base Amps, Down Slope,
End Current, Post Flow,

8. Warning indicating light

9. MMA selector: DC– / DC+

10. TIG PULSE selector

11. TIG selector: DC TIG

12. 2T / 4T Selector

13. Data Display adjustment knob

15. Output Positive (welding holder)

16. Output Negative (ground clamp)

17. Argon out

18. Argon arc control (or remote control)

19. Amp Adjustment selector (remote control):
Panel, Pedal, Finger, Torch

20. Power switch

21. Argon inlet

22. Power supply

23. Safety earthing column

24. Cooling fan

25. HF/Lift TIG selector

STEALTH DIGI-TIG180PD

.METHOD OF THE OPERATION

oo

workpiece

torch

21

argon

bottle

switch

flow meter

gas inlet pipe

20

24

23

22

7 8

4

9

10

1113

3

5

6

15

15

16

17

18 16

1

12

19

26

FRONT PANEL BACK PANEL

6 MACHINE OPERATION

6.1 ARGON ARC WELDING (TIG)

6.2 CLEANING BEFORE WELDING

Tungsten argon welding is very sensitive to surface contamination. Therefore, before
welding is carried out remove grease, paint, surface coatings, lubricants and oxidized
film.

6.3 DC ARGON ARC WELDING (refer to diagram on page 5)

6.3.1 Select 11 to position DC TIG, select 10 to position PULSE OFF, connect
gas inlet pipe to inlet 21.

6.3.2 Connect welding torch gas inlet pipe to argon output 17.

6.3.3 Connect the torch control plug to the argon arc control socket 18.

6.3.4 Testing gas: Switch on the power 2. Open the argon bottle. Press the torch
switch and select suitable argon flow.

6.3.5 Regulating knobs 3 & 13. Select suitable welding current according to
thickness of the workpiece to be welded. Select suitable current down slope
time and post flow time according to the current.
Note 1: The current indicating meter on the front panel is used to display the
preset output current level before welding, and actual output level while
welding: A lit display indicates input power is turned on.
Note 2: Select 12 to the position PEDAL and regulate welding current with
the foot control.
Note 3: When using ADJUSTABLE FINGER CONTROL, select 19 to position
PANEL, PEDAL or FINGER TORCH and commence welding.

6.3.6 Ensure tungsten electrode end is 2-3mm away from the workpiece. Press the
torch switch, arc striking will occur. Note: During welding, when the 2T/4T
switch 12 is on 2T the switch of the torch must be pressed and should not
be released, otherwise the arc will be broken.

STEALTH DIGI-TIG180PD

6.3.7 Release the switch of the torch and the welding current will reduce gradually
(time is adjustable) until the arc extinguishes. The welding torch should not be
removed as soon as the arc extinguishes to allow the gas to flow over the weld,
in order to prevent oxidisation.

6.4 PULSE ARGON ARC WELDING

6.4.1 Selection of peak current and base current:

6.4.2 Select 11 to position DC TIG or AC TIG and selector 10 to the ON position.

6.4.3 Select peak time in ratio: It can be selected between 5%-95%.

6.4.4 Select UP SLOPE / DOWN SLOPE time: It can be selected between 0-10S.

6.4.5 When the welding operation is completed, turn off argon bottle switch and cut
off input power.

switch,arc striking will occur.

Notice:

During welding, when the" 12. 2T/4Tswitch"on "2T", switch of the torch must be

pressed and can not be released.otherwise the arc will be broken.

⑦

.Releasing the switch of the torch, welding current will reduce gradually (time is adjustive)

and arc extinguishes.The welding torch can not be removed as soon as the arc extinguishing. Let

the protection gas cooling down for the welding seam not to be oxidized.

⑧

.When the welding operation is finished, turn off argon bottle switch and cut off input power

of the welder.

1.3 PULSE ARGON ARC WELDING

①

. Selection of peak current and base current:

②

. selector "11" onto the position " DC TIG " or "AC TIG "and selector "10" onto the position

" on",

③

.select peak time on ratio: It can be selected between 5%-95%.

④

.select up-slope&down slope time: It can be selected between 0-10S.

⑤

.Gas connecting and testing,are generating and are blowing off etc. are all the same as DC

are welding.

1.4 PULSE ARGON TUNGSTEN WElDING PROCESS (only for reference)

tp--width time of pulse current

width time of base current

tb--

tp+tb=T

tb

--- = D pulse width

CUR.

(A)

T (s)

t1

gas pre flow

arcing

up-slope

welding process

down-slope

arcing off

post Flow

tp

tb

T

Ip

Ib

Ip--pulse current

Ib--base current

tp

Start Amp s

End Amps

Features and application scope of the process
The pulse type argon tungsten arc welding is different from the continuous (DC) argon
arc welding. The welding current is pulsed. The wave form of the current is shown in
the diagram above. Ip and Ib and their continuous time tp and tb can be regulated
according to requirements of the process. The amplitude value of electric current
changes periodically with certain frequency in case of the pulse current, molten base
will be formed in the workpiece and the molten bath will be solidified in care of base
current. The welding seam is formed by reciprocal overlaps. Welding heat input can be
controlled by regulating pulse frequency, pulse current amplitude, size of base current,
continuous time of pulse current and base current and therefore the welding seam,
size and quality of the zone influenced from heat can be controlled.

Advantages and application scope of pulse argon gas tungsten arc welding

 • Preciselycontrolthesizeofthebathinputtingheattoworkpiecetoincrease

penetration resistance of molten seam and preservation of bath. It is easy to obtain
even fusing depth. This process is specially applicable to omni-bearing welding of
sheet and formation with both sides through one side welding.

 • Pulsearccanobtaingreaterfusingdepthwithlowerheatinput.Thereforeunderthe

same condition, the zone influenced from welding heat and deformation from welding
can be reduced. This is very important for sheet and ultra-thin sheet welding.

 • Fastcoolingofthebathmetalandshortdurationtimeofhightemperatureduring

welding can reduce cracks caused to the thermo-sensitive materials.

6.5 PULSE ARGON TUNGSTEN WELDING PROCESS (for reference only)

STEALTH DIGI-TIG180PD

2.Hand welding with electrode

①

.selector "9" onto the position " DC+ " or "DC-"

②

. select right welding current

select empiric formula:I=40d, d is dia. of the electrode.

③

.Notice positive and negative connection during welding.

④

.Connecting input power for the welder, then switch on the power and current indicating

light "4" is on .

⑤

.Pay attention to rated welding current and rated duty cycle of the welder. Overload is not

allowed.

⑥

.After the welding operation is finished, let the welder be ventilated for a few minutes and

then cut off the power switch.

Ⅶ

.SYSTEMATIC BLOCK DIAGRAM

Rectifier &

Filter

INPUT

Inverse

Circuit

25KHz

OUTPUT

Rectifier

Filter

input

Control Circuit

H.F.

+

TORCH

-

ELECTRODE

HOLDER

WORKPIECE

WELDER

6.6 SELECTION OF WELDING PARAMETERS

Except for pulse current and the width time (width ratio) as well as pulse frequency,
welding parameters of pulse argon gas tungsten arc welding are the same as general
tungsten DC argon arc welding. Pulse current increasing means electric arc can obtain
greater penetration ability.
Too much current can cause local melting of tungsten electrode. Generally, welding
current required for DC tungsten argon arc welding or greater current is used. Arc
holding current and base current influences cooling and crystallizing of the metal in
the bath. The range is determined by performance of the welding materials. When sheet
is welded, smaller arc holding current (base current) is usually used in order to reduce
welding through and deformation. When pulse width ratio (holding time of pulse current
and base current) is selected, both the heat input and features of pulse welding should
be considered. Usually, it can be selected between 10%-90%. Selection of pulse
frequency (periodical change time of pulse current) mainly depends on thickness of
sheet and welding speed and operation custom of the operator should be also
considered

6.7 HAND WELDING WITH ELECTRODE

6.7.1 Select 9 to position DC+ or DC–.

6.7.2 Select welding current and formula I = 40d (d is diameter of the electrode)

6.7.3 Select correct AC square wave frequency and AC balance.

6.7.4 Connect input power. Switch on power – current indicator 4 is illuminated.

6.7.5 Observe the rated welding current and duty cycle. Do not overload.

6.7.6 After operation, allow the machine to cool down for a few minutes before
switching it off.

7 SYSTEMATIC DIAGRAM

8 PRODUCT DESCRIPTION

This product is sold subject to the understanding that if any defect in manufacture or
material shall appear within 24 months from date of consumer sale, the supplier will
arrange for such defect to be rectied without charge (except for any damage due to
misuse).

STEALTH DIGI-TIG180PD

Problems Causes Solutions

Power lamp not lit 1. No electricity input 1. Check incoming line

2. Switch of welder fails 2. Replace the switch

Fan not rotating 1. Fan power line is off 1. Reconnect the line

2. Enclosure blocks the fan 2. Reform the enclosure
due to deformation 3. Replace the fan

3. The fan fails

Warning lamp lights 1. Over heat (yellow lamp lights) 1. Welding after cooling

2. Over current (Green lamp lights) 2. Input voltage too low or the
machine fails

No output of welder 1. Over current protection 1. Overload using

2. Welder fails 2. Maintain in service centre or
return to manufacturer

Output current 1. Input Voltage is low 2. Power line is thickened
decreases 2. Input line is too thin

Current cannot be 1. Connecting line of the 1. Reconnect the line
regulated potentiometer is off 2. Replace potentiometer

2. Potentiometer for current
regulation fails

High frequency arc 1. The switch fails 1. Replace torch switch
cannot be generated 2. Interval of high frequency 2. Regulating discharging interval
discharging is too big to 0.8-1.0mm

3. Distance of the torch and 3. Put torch tungsten electrode
workpiece is too far high close to workpiece
frequency arc generator fails 4. Replace high frequency arc
generator

Arc of argon welding 1. Argon gas flow not well regulated 1. Regulate well
is broken or tungsten 2. Tungsten electrode fails 2. Replace or sharpen
electrode is burnt 3. Value of current does not match 3. Select the electrode diagram
with tungsten electrode diagram and current correctly

4. After flow time too short 4. Increase the time

Welding torch 1. Not use the water cooling when 1. Use water cooling
overheats current is more than 160A 2. Enlarge the argon flow

2. The argon flow is the low current

Welding stops, and Self-protection has engaged
warning light is on 1. Display 801 1. Over-voltage, lower-voltage

2. Display 802 2. Over-current

3. Display 804 3. Over-temperature

4. Display 805 4. Torch switch always close

9 TROUBLESHOOTING

STEALTH DIGI-TIG180PD

WARNING

AVISO DE

PRECAUCION

ATTENTION

WARNUNG

ATENÇÃO

Spanish

French

German

Portuguese

Japanese

Chinese

Korean

Arabic

READ AND UNDERSTAND THE MANUFACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO BE
USED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES.

SE RECOMIENDA LEER Y ENTENDER LAS INSTRUCCIONES DEL FABRICANTE PARA EL USO DE ESTE EQUIPO Y LOS
CONSUMIBLES QUE VA A UTILIZAR, SIGA LAS MEDIDAS DE SEGURIDAD DE SU SUPERVISOR.

LISEZ ET COMPRENEZ LES INSTRUCTIONS DU FABRICANT EN CE QUI REGARDE CET EQUIPMENT ET LES PRODUITS A
ETRE EMPLOYES ET SUIVEZ LES PROCEDURES DE SECURITE DE VOTRE EMPLOYEUR.

LESEN SIE UND BEFOLGEN SIE DIE BETRIEBSANLEITUNG DER ANLAGE UND DEN ELEKTRODENEINSATZ DES HER­STELLERS. DIE UNFALLVERHÜTUNGSVORSCHRIFTEN DES ARBEITGEBERS SIND EBENFALLS ZU BEACHTEN.

● Do not touch electrically live parts or

electrode with skin or wet clothing.

● Insulate yourself from work and

ground.

● No toque las partes o los electrodos

bajo carga con la piel o ropa moja­da.

● Aislese del trabajo y de la tierra.

● Ne laissez ni la peau ni des vête-

ments mouillés entrer en contact
avec des pièces sous tension.

● Isolez-vous du travail et de la terre.

● Berühren Sie keine stromführenden

Teile oder Elektroden mit Ihrem
Körper oder feuchter Kleidung!

● Isolieren Sie sich von den

Elektroden und dem Erdboden!

● Não toque partes elétricas e elec-

trodos com a pele ou roupa molha­da.

● Isole-se da peça e terra.

● Keep flammable materials away.

● Mantenga el material combustible

fuera del área de trabajo.

● Gardez à l’écart de tout matériel

inflammable.

● Entfernen Sie brennbarres Material!

● Mantenha inflamáveis bem guarda-

dos.

● Wear eye, ear and body protection.

● Protéjase los ojos, los oídos y el

cuerpo.

● Protégez vos yeux, vos oreilles et

votre corps.

● Tragen Sie Augen-, Ohren- und Kör-

perschutz!

● Use proteção para a vista, ouvido e

corpo.

STEALTH DIGI-TIG180PD

WARNING

AVISO DE

PRECAUCION

ATTENTION

WARNUNG

ATENÇÃO

Spanish

French

German

Portuguese

Japanese

Chinese

Korean

Arabic

LEIA E COMPREENDA AS INSTRUÇÕES DO FABRICANTE PARA ESTE EQUIPAMENTO E AS PARTES DE USO, E SIGA AS
PRÁTICAS DE SEGURANÇA DO EMPREGADOR.

● Keep your head out of fumes.

● Use ventilation or exhaust to

remove fumes from breathing zone.

● Los humos fuera de la zona de res-

piración.

● Mantenga la cabeza fuera de los

humos. Utilice ventilación o
aspiración para gases.

● Gardez la tête à l’écart des fumées.

● Utilisez un ventilateur ou un aspira-

teur pour ôter les fumées des zones
de travail.

● Vermeiden Sie das Einatmen von

Schweibrauch!

● Sorgen Sie für gute Be- und

Entlüftung des Arbeitsplatzes!

● Mantenha seu rosto da fumaça.

● Use ventilação e exhaustão para

remover fumo da zona respiratória.

● Turn power off before servicing.

● Desconectar el cable de ali-

mentación de poder de la máquina
antes de iniciar cualquier servicio.

● Débranchez le courant avant l’entre-

tien.

● Strom vor Wartungsarbeiten

abschalten! (Netzstrom völlig öff­nen; Maschine anhalten!)

●

Não opere com as tampas removidas.

●

Desligue a corrente antes de fazer
serviço.

●

Não toque as partes elétricas nuas.

● Do not operate with panel open or

guards off.

● No operar con panel abierto o

guardas quitadas.

● N’opérez pas avec les panneaux

ouverts ou avec les dispositifs de
protection enlevés.

● Anlage nie ohne Schutzgehäuse

oder Innenschutzverkleidung in
Betrieb setzen!

● Mantenha-se afastado das partes

moventes.

● Não opere com os paineis abertos

ou guardas removidas.

STEALTH DIGI-TIG180PD

Specialised Welding Products Ltd

Unit 1, Farringdon Industrial Centre, Farringdon, Nr Alton, Hampshire GU34 3DD, UK
tel: [phone] • fax: [phone] • email: [e-mail]