wilkinsonstar.com

Arc Series

DC MMA / LIFT TIG Welding machines

Order codes !

JA-140, JA-160, JA-180, JA-200

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JA-160DV, JA-180DV - Dual voltage

OPERATOR MANUAL

Your new product

Thank you for selecting this Jasic Technology, Wilkinson Star product.

This product manual has been designed to ensure that you get the most from your new product. Please ensure that you are fully conversant with the information provided paying particular attention to the safety precautions. The information will help protect yourself and others against the potential hazards that you may come across.

Please ensure that you carry out daily and periodic maintenance checks to ensure years of reliable and trouble free operation.

Wilkinson Star Limited are a leading supplier of equipment in the UK and our products are supported by our extensive service network. Call your distributor in the unlikely event of a problem occurring. Please record below the details from your product as these will be required for warranty purposes and to ensure you get the correct information should you require assistance or spare parts.

Date purchased _____________________________________________________

From where _____________________________________________________

Serial Number _____________________________________________________

(The serial number will normally be located on the equipment data plate on the underside of the machine or on the rear panel)

Please note products are subject to continual development and may be subject to change without notice i

1

Safety Precautions

These general safety norms cover both arc welding machines and plasma cutting machines unless otherwise noted.

The equipment must only be used for the purpose it was designed for. Using it in any other way could result in damage or injury and in breach of the safety rules.

Only suitably trained and competent persons should use the equipment. Operators should respect the safety of other persons.

Prevention against electric shock

The equipment should be installed by a qualified person and in accordance with current standards in operation.It is the users responsibility to ensure that the equipment is connected to a suitable power supply. Consult with your utility supplier if required

If earth grounding of the work piece is required, ground it directly with a separate cable.

Do not use the equipment with the covers removed.

Do not touch live electrical parts or parts which are electrically charged.

Turn o ff all equipment when not in use.

Cables (both primary supply and welding) should be regularly checked for damage and overheating. Do not use worn, damaged, under sized, or poorly jointed cables.

Ensure that you wear the correct protective clothing, gloves, head and eye protection.

Insulate yourself from work and ground using dry insulating mats or covers big enough to prevent any physical contact with the work ground.

Never touch the electrode if you are in contact with the work ground, or another electrode from a di ff erent machine.

Do not wrap cables over your body.

Ensure that you take additional safety precautions when you are welding in electrically hazardous conditions such as damp environments, wearing wet clothing, and metal structures. Try to avoid welding in cramped or restricted positions.

Ensure that the equipment is well maintained. Repair or replace damaged or defective parts immediately. Carry out any regular maintenance in accordance with the manufacturers instructions.

Safety against fumes and welding gases

Locate the equipment in a well-ventilated position.

Keep your head out of the fumes. Do not breathe the fumes.

Ensure the welding zone is in a well-ventilated area. If this is not possible provision should be made for suitable fume extraction.

If ventilation is poor, wear an approved respirator.

Read and understand the Material Safety Data Sheets

(MSDS’s) and the manufacturer’s instructions for metals, consumable, coatings, cleaners, and de-greasers.

Do not weld in locations near any de-greasing, cleaning, or spraying operations. Be aware that heat and rays of the arc can react with vapours to form highly toxic and irritating gases.

2

Do not weld on coated metals, unless the coating is removed from the weld area, the area is well ventilated, and while wearing an air-supplied respirator. The coatings on many metals can give o ff toxic fumes if welded.

Prevention against burns and radiation

Arc rays from the welding process produce intense, visible and invisible (ultraviolet and infrared) rays that can burn eyes and skin.

Wear an approved welding helmet fitted with a proper shade of filter lens to protect your face and eyes when welding or watching

Wear approved safety glasses with side shields under your helmet.

Never use broken or faulty welding helmets.

Always ensure there are adequate protective screens or barriers to protect others from flash, glare and sparks from the welding area. Ensure that there are adequate warnings that welding or cutting is taking place.

Wear suitable protective flame resistant clothing.

The sparks and spatter from welding, hot work pieces, and hot equipment can cause fires and burns

Welding on closed containers, such as tanks, drums, or pipes, can cause them to explode.

Accidental contact of electrode to metal objects can cause arcs, explosion, overheating, or fire.

Check and be sure the area is safe and clear of inflammable material before carrying out any welding.

Protection against noise

Some welding and cutting operations may produce noise.

Wear safety ear protection to protect your hearing.

Protection from moving parts

When the machine is in operation keep away from moving parts such as motors and fans. Moving parts, such as the fan, may cut fingers and hands and snag garments.

Protections and coverings may be removed for maintenance and controls only by qualified personnel, after first disconnecting the power supply cable.

Replace the coverings and protections and close all doors when the intervention is finished, and before starting the equipment.

Take care to avoid getting fingers trapped when loading and feeding wire during set up and operation.

When feeding wire be careful to avoid pointing it at other people or toward your body.

Always ensure machine covers and protective devices are in operation.

Precautions against fire and explosion

Avoid causing fires due to sparks and hot waste or molten metal

Ensure that appropriate fire safety devices are available near the cutting / welding area.

Remove all flammable and combustible materials from the cutting / welding zone and surrounding areas

Do not cut/weld fuel and lubricant containers, even if empty.

These must be carefully cleaned before they can be cut/ welded.

Always allow the cut/welded material to cool before touching it or placing it in contact with combustible or flammable material.

Do not work in atmospheres with high concentrations of combustible fumes, flammable gases and dust.

Always check the work area half an hour after cutting to make sure that no fires have begun.

Risks due to magnetic fields

The magnetic fields created by high currents may a ff ect the operation of pacemakers or electronically controlled medical equipment.

Wearers of vital electronic equipment should consult their physician before beginning any arc welding, cutting, gouging or spot welding operations.

Do not go near welding equipment with any sensitive electronic equipment as the magnetic fields may cause damage.

3

RF Declaration

Equipment that complies with directive 2004/108/EC concerning electromagnetic compatibility (EMC) and the technical requirements of EN60974-10 is designed for use in industrial buildings and not those for domestic use where electricity is provided via the low voltage public distribution system. Di ffi culties may arise in assuring class A electromagnetic compatibility for systems installed in domestic locations due to conducted and radiated emissions.

In the case of electromagnetic problems, it is the responsibility of the user to resolve the situation. It may be necessary to shield the equipment and fit suitable filters on the mains supply.

LF Declaration

Consult the data plate on the equipment for the power supply requirements.

Due to the elevated absorbance of the primary current from the power supply network, high power systems a ff ect the quality of power provided by the network. Consequently, connection restrictions or maximum impedance requirements permitted by the network at the public network connection point must be applied to these systems.

In this case the installer or the user is responsible for ensuring the equipment can be connected, consulting the electricity provider if necessary.

Materials and their disposal

Never allow the electrode, electrode holder or any other electrically “hot” parts to touch a cylinder.

Keep your head and face away from the cylinder valve outlet when opening the cylinder valve.

Always secure the cylinder safely

Never deface or alter any cylinder

The equipment is manufactured with materials, which do not contain any toxic or poisonous materials dangerous to the operator.

When the equipment is scrapped, it should be dismantled separating components according to the type of materials.

Do not dispose of the equipment with normal waste. The

European Directive 2002/96/EC on Waste Electrical and

Electronic Equipment states the electrical equipment that has reached its end of life must be collected separately and returned to an environmentally compatible recycling facility.

Handling of Compressed gas cylinders and regulators

All cylinders and pressure regulators used in welding operations should be handled with care.

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2

Product Overview

The unique electronic structure and air channel design in this series of machines provides e ffi cient cooling of the power devices as well as improving the duty cycles of the machines. The design of the forced air-cooling system channel can e ff ectively prevent the power devices and control circuits from being damaged by the dust introduced into the machine by the fan. The reliability of the machine is greatly improved as a result. The streamline design means front and rear panels are naturally integrated via largeradian transition. The front and rear panels of the machine and the handle are coated with rubber oil*, giving the machine a very tactile and comfortable grip with an excellent appearance.

Product functions

• Hot start arc ignition functions: ensure the arc ignition in

MMA welding easier and more reliable.

• VRD function: Provides additional safety keep the operator safe when the machine is idle.

• Anti-sticking function: Reduces the welding current if a short circuit occurs during welding.

• Self-adaptive arc force technology: Maintains the optimum arc conditions during welding even with long cables.

• Advanced scratch start arc ignition: supports TIG welding without HF arc ignition circuit.

Product performance characteristics

• Advanced IGBT inverter technology

• Inverting frequency of 33~43 kHz greatly reduces the size and weight of the welder.

• Great reduction in magnetic and resistance loss enhances the welding e ffi ciency and energy saving e ff ect.

• Working frequency is beyond the audio range, which almost eliminates noise pollution.

• Industry leading control system

• Advanced control technology meets the various welding applications and provides excellent welding performance.

• It can be used with a wide range of welding electrodes.

• Easy arc starting, less spatter, stable current and good weld bead shaping.

• Modern high tech design

• Streamline design of front and rear panels.

• Front and rear panels made of high-intensity plastics suitable for working in severe conditions.

• Excellent insulating property.

• Water-resistant, antistatic and anticorrosion design.

• It can be used with a wide range of welding electrodes.

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3

Technical data

Single voltage units

Unit

ARC140 (JA-140) ARC160 (JA-160) ARC180 (JA-180) ARC200 (JA-200)

%

V

%

V

KVA

A

IP

Cos φ

6

10~140

7.11

10~160

8

10~180

9.4

10~200 dB without handle with handle

*

Kg mm

Tested at the environment temperature of 40 0 C

Product design may vary due to customer requirements.

＜ 70

313*130*206

313*130*250

4.7

1.0~4.0

＜ 70

313*130*206

313*130*250

4.7

1.0~4.0

＜ 80

313*130*206

313*130*250

4.7

1.0~5.0

＜ 80

351*130*206

351*130*250

5.2

1.0~5.0

6

Dual voltage units

Unit

KVA

A

%

V

%

V AC230V±15% 50/60HZ AC110V±15% 50/60HZ AC230V±15% 50/60HZ AC115V±15% 50/60HZ

7.11

10~160

5

10~120

8

10~180

6

10~140

IP

Cos φ

＜ 70 ＜ 80 ＜ 80 dB without handle with handle

*

Kg mm

Tested at the environment temperature of 40 0 C

＜ 70

Product design may vary due to customer requirements.

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4

Controls

Front view

1.

Overheating LED: Overheating LED on indicates that the temperature inside the machine is too high and the machine is under overheating protection status.

2.

Power LED: Power LED on indicates that the power switch of the machine is on.

3.

MMA/TIG switch: To toggle between MMA and TIG.

4.

"+" Output terminal: To connect the electrode holder.

5.

"-" Output terminal: To connect the work clamp.

6.

Trademark

7.

Welding current knob: To adjust the output current.

8.

Handle

Rear view

9 Power switch

10 Warning label

11 Input cable gland

12 Cooling fan

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5

Installation

Unpacking

Check the packaging for any signs of damage.

Carefully remove the machine and retain the packaging until the installation is complete.

Location

The machine should be located in a suitable position and environment. Care should be taken to avoid moisture, dust, steam, oil or corrosive gases

Place on a secure level surface and ensure that there is adequate clearance around the machine to ensure natural airflow.

Input connection

Before connecting the machine you should ensure that the correct supply is available. Details of the machine requirements can be found on the data plate of the machine or in the technical parameters shown in the manual.

The equipment should be connected by a suitably qualified competent person. Always ensure the equipment has a proper grounding.

Never connect the machine to the mains supply with the panels removed.

Output connections

Electrode polarity

In general when using manual arc welding electrodes the electrode holder is connected the positive terminal and the work return to the negative terminal. Always consult the electrode manufacturer’s data sheet if you have any doubts.

When using the machine for TIG welding the TIG torch should be connected to the negative terminal and the work return to the positive terminal

MMA welding

Insert the cable plug with electrode holder into the “+” socket on the front panel of the welding machine, and tighten it clockwise.

Insert the cable plug of the work return lead into the “-”ve socket on the front panel of the welding machine, and tighten it clockwise

TIG Welding

Insert the cable plug with the work clamp into the “+” socket on the front panel of the welding machine, and tighten it clockwise.

Insert the cables plug of the TIG torch into the “-” socket on the front panel of the machine and tighten clockwise.

Connect the gas hose to the regulator / flowmeter located on the shield gas cylinder and connect the other end to the machine.

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Operation

Before starting any welding activity ensure that you have suitable eye protection and protective clothing. Also take the necessary steps to protect any persons within the area.

MMA

After connecting the welding leads as detailed you will need to switch the power switch on the back panel to “ON”

Select MMA by switching to the MMA welding mode. There is voltage output at both output terminals.

Set the amperage on the machine suitable for the electrode being used. Please see below a guide to amperages required. Ensure you check that you have the electrode polarity correct.

Electrode Diameter (mm)

3.2

4.0

5.0

6.0

1.0

1.6

2.0

2.5

TIG mode

Recommended Welding Current (A)

20~60

44~84

60~100

80~120

108~148

140~180

180~220

220~260

Connect the TIG torch leads as detailed above. Ensure that a suitable inert gas supply is connected.

Switch the power switch on the back panel to “ON”

Select the TIG welding mode using the selector switch.

There is voltage output at both output terminals.

After the parameters are set appropriately, open the gas valve of the cylinder, the gas valve on the torch and adjust the gas regulator to obtain the desired flow rate.

The arc will start when the tungsten electrode touches the work piece and is lifted o ff after touching by between 2-4mm

The arc will cease when the electrode (torch) is moved away from the work area

Select the spot welding time setting function by pressing the welding parameter selecting key, and set the spot welding time. Operation steps in spot welding:

Press the torch trigger, gas valve opens, and HF arc ignition starts; Keep the torch 2~4mm away from the work piece to

TIG guides

The recommended size of tungsten to be used can be selected from the table below

Electrode diameter /mm 1.6

Welding current /A 25-40

2.0

40-60

2.5

3.2

50-80 100-130

Electrode type

Type

Thoriated 2%

Ceriated

Lanthanated

Mode

DC welding of steel, stainless steel and copper

DC welding of steel, stainless steel and copper

DC welding of steel, stainless steel and copper

Colour

Red

Grey

Black

The corresponding relationship between gas nozzle diameter and electrode diameter

Gas nozzle diameter/mm

6.4

8

9.5

11.1

Electrode diameter/mm

0.5

1.0

1.6 or 2.4

3.2

For welder training please visit our Academy website at www.wilkinson-welding-academy.com

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6

Maintenance and troubleshooting

The following operation requires su ffi cient professional knowledge on electric aspects and comprehensive safety knowledge. Make sure the input cable of the machine is disconnected from the electricity supply and wait for 5 minutes before removing the machine covers.

In order to guarantee that the arc welding machine works e ffi ciently and in safety, it must be maintained regularly.

Operators should understand the maintenance methods and means of arc welding machine operation. This guide should enable customers to carry on simple examination and safeguarding by oneself, try to reduce the fault rate and repair times of the arc welding machine, so as to lengthen service life of arc welding machine

Period

Daily examination

Monthly examination

Yearly examination

Maintenance item

Carry out a full visual inspection. Check for any damage to the machine, leads, cables and connections. Replace where necessary.

Switch on the machine and check for any warning Led’s and general operation

Using the dry compressed air to clean the inside of arc welding machine. Especially check for build up of dust / debris on intake grills, main voltage transformer, inductance, IGBT module, the fast recover diode and PCB, etc. Take care when blowing electronic components and do not dislodge any wiring connections

Check the security of output connections and plugs. Replace if signs of overheating.

Carry out an annual service. Check earth continuity and insulation resistance of the machine at the relevant points.

PLEASE NOTE THIS WORK SHOULD

BE CARRIED OUT BY A TRAINED

COMPETENT PERSON.

Troubleshooting

Before arc welding machines are dispatched from the factory, they have already been checked thoroughly. The machine should not be tampered with or altered.

Maintenance must be carried out carefully. If any wire becomes loose or is misplaced, it maybe potential danger to user!

Only professional maintenance personnel should repair the machine!

Ensure the power is disconnected before working on the machine. Always wait 5 minutes after power switch o ff before opening the case.

Malfunction symptom Causes and Solutions

Turn on the machine, the power LED is off, the fan doesn't work, and no

1 Check if the power switch is closed.

2 No input power.

welding output.

Turn on the machine, the fan works,

1 The current potentiometer fails. Replace but the output current is unstable it.

and can't be controlled by potentiometer when welding.

2 Check if any loose contact exists inside the machine. If any, reconnect.

1 Check if any loose contact exists inside the machine.

2 Open circuit or loose contact occurs at the joint of output terminal.

3 The overheating LED is on.

Turn on the machine,, the fan works,

The machine is under over-heating p r o t e c t i o n s t a t u s . I t c a n r e c o v e r but no welding output.

automatically after the welding machine is cooled.

4 Check if the thermal switch is ok. Replace it if damaged.

5 Check if the thermal switch is loosely connected, and reconnect it if necessary.

The electrode holder becomes very smaller than its actual working current. hot.

The rated current of the electrode holder is

Replace it with a higher rated current capacity.

Excessive spatter in MMA welding.

The output polarity connection is incorrect.

Exchange the polarity.

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Electrical schematic

Schematic for single voltage unit

Schematic for dual voltage unit

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8

Parts list

Arc Pro 140 - (JA-140)

No.

9

10

11

12

13

14

7

8

5

6

3

4

1

2

Part no

10004957

10037125

10044817

10043477

10043689

10039735

10037113

10037128

10044029

10037561

10037147

10006431

10006474

10007251

Description

Power switch

Back panel

Fan

Handle

Louver

Machine Cover

Bottom panel

Front panel

Quick socket

Knob

LM79L15ACMX

Thermal Resistor

Electric Relay

IGBT

No.

23

24

25

26

27

28

19

20

21

22

15

16

17

18

Part no Description

10037859 Thermal Switch

10037135 Driver transformer

10006282 IRF9Z24N

10006282 IRFZ24N

10037134 Switching mode power supply transformer

10037345 Silicon bridge

10037146 TOP266KG

10043910 Control board

10037734 High frequency transformer

10005801 Electrolytic capacitor

10006272 Rectifying tube

10037078 Pin insulation cover

10037432 Rectifier Plate

10037858 Power line

13

Arc Pro 160 - (JA-160DV)

No.

1

2

5

6

3

4

7

12

13

14

10

11

8

9

Part no

10004957

10037125

10044817

10043477

10043689

10039735

10037113

10037485

10037431

10006248

10037836

10006431

10006474

10007251

Description

Power switch

Back Panel

Fan

Handle

Louver

Machine Cover

Bottom Panel

ARC160D Silicon bridge

ARC160D Rectifying Board

ARC160D Rectifier Tube

Front Panel

Thermal Resistor

Electric Relay

IGBT

No.

15

16

17

18

19

20

21

26

27

28

22

23

24

25

Part no

10037859 Thermal Switch

Description

10037135 Drive Transformer

10006282 IRF9Z24N

10006282 IRFZ24N

10037134 Switching mode power supply transformer

10037147 LM79L15ACMX

10037146 TOP266KG

10043914 ARC160D Control Board

10037134 ARC160D High frequency transformer

10038719 ARC160D Electrolytic capacitor

10037561 Knob

10037078 Pin insulation cover

10037152 Quick socket

10037858 Power line

14

Arc Pro 180 - (JA-180DV)

No.

3

4

1

2

Part no Description

10004957 Power switch

10037837 Back Panel

10044009 Fan

10043477 Handle

5 10043689 Louver

6 10037813 Machine Cover

7

8

10037811 Bottom panel

10043405 Front Panel

9 10044030 Quick Socket

10 10037561 Knob

11 10044538 Silicon Bridge board

12 10006431 Thermal Resistor

13 10006474 Electric Relay

14 10029693 IGBT

No.

Part no Description

15 10037852 Thermal Switch

16 10037135 Driver transformer

17 10006282 IRF9Z24N

18 10006282 IRFZ24N

19 10037134

Switching mode power supply transformer

20 10037147 LM79L15ACMX

21 10037146 TOP266KG

22 10043912 Control Board

23 10037735 High Frequency transformer

24 10038737 Electrolytic capacitor

25 10006248 Rectifier tube

26 10037078 Pin insulation cover

27 10037429 Rectifying board

28 10037853 Power line

15

Arc Pro 200 - (JA-200)

10

11

12

13

14

5

6

7

8

9

No.

1

2

3

4

Part no

10004957

10037837

10044009

10043477

Power switch

Back panel

Fan

Handle

Description

10043689 Louver

10037813

10037706

10043405

Machine Cover

Bottom Panel

Front Panel

10044030 Quick Socket

10037561 Knob

10037485 Silicon bridge board

10006431

10006474

10029693

Thermal Resistor

Electric Relay

IGBT

24

25

26

27

28

19

20

21

22

23

No.

15

16

17

18

Part no

10037852 Thermal Switch

10037135 Drive Transformer

10006282 IRF9Z24N

10006282 IRFZ24N

Description

10037134 Switching mode power supply transformer

10037147 LM79L15ACMX

10037146 TOP266KG

10043912 Control Board

10037735 High Frequency transformer

10005848 Electrolytic capacitor

10006248 Rectifying tube

10037078 Pin insulation cover

10037429 Rectifier Plate

10037853 Power line

16

17

JA Arc series DC TIG/MMA WELDING MACHINE

Order code !

JA-140, JA-160, JA-180, JA-200

!

!

!

!

JA-160DV, JA-180DV - Dual voltage

© Wilkinson Star Limited

Issue 1 January 2014

Product is subject to change without notice

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