SIP Weldmate HG 05726 User manual

32
FOR HELP OR ADVICE ON THIS PRODUCT PLEASE CONTACT YOUR DISTRIBUTOR,
OR SIP DIRECTLY ON:
TEL: [phone]
EMAIL: [e-mail] or [e-mail]
www.sip-group.com
Ref: 210915
Please dispose of packaging for the product in a responsi-
ble manner. It is suitable for recycling. Help to protect the
environment, take the packaging to the local amenity tip
and place into the appropriate recycling bin.
Never dispose of electrical equipment or batteries in with
your domestic waste. If your supplier offers a disposal facili-
ty please use it or alternatively use a recognised re-cycling
agent. This will allow the recycling of raw materials and help
protect the environment.
1
Please read and fully understand the instructions in this manual
before operation. Keep this manual safe for future reference.
05726, 05728 & 05730
Weldmate HG
Inverter Arc/Tig Welder

2
31
Declaration of Conformity
We
SIP (Industrial Products) Ltd
Gelders Hall Road
Shepshed
Loughborough
Leicestershire
LE12 9NH
England
As the manufacturer's authorised representative within the EC
declare that the
Weldmate HG1400A Inverter Arc/Tig Welder - SIP Part. No. 05726
Weldmate HG1600A Inverter Arc/Tig Welder - SIP Part. No. 05728
Weldmate HG2000A Inverter Arc/Tig Welder - SIP Part. No. 05730
Conforms to the requirements of the following directive(s), as indicated.
2006/95/EC Low Voltage Directive
2004/108/EC EMC Directive
2011/65/EU RoHS Directive
Signed: …………………………………...
Mr P. Ippaso - Managing Director - SIP (Industrial Products) Ltd
Date: 06/05/2015.
And the relevant harmonised standard(s), including
DECLARATION OF CONFORMITY
EN 60974-1:2012
EN 60974-10:2007

30
NOTES
3
CONTENTS
Page No. Description
4. Safety Symbols Used Throughout This Manual
4. Safety Instructions
11. Electrical Connection
13. Guarantee
13. Contents and Accessories
14. Technical Specification
15. Getting to Know Your Inverter Welder
17. Operating Instructions
21. Maintenance
22. Troubleshooting
23. Wiring Diagram - 05726 & 05728
24. Wiring Diagram - 05730
25. Parts Listing - 05726
26. Parts Listing - 05728
27. Parts Listing - 05730
31. Declaration of Conformity

4
When using your inverter welder, basic safety precautions should always be followed to
reduce the risk of personal injury and / or damage to the inverter welder.
Read all of these instructions before operating the inverter welder and save this user
manual for future reference.
The inverter welder should not be modified or used for any application other than that
for which it was designed.
This inverter welder was designed to supply electric current for ARC welding.
If you are unsure of its relative applications do not hesitate to contact us and we will be
more than happy to advise you.
Before each use of the inverter welder always check no parts are broken and that no
parts are missing.
Always operate the inverter welder safely and correctly.
KNOW YOUR INVERTER WELDER: Read and understand the owner's manual and labels
affixed to the inverter welder. Learn its applications and limitations, as well as the poten-
tial hazards specific to it.
KEEP WORK AREA CLEAN AND WELL LIT: Cluttered work benches and dark areas invite
accidents. Floors must not be slippery due to oil, water or sawdust etc.
DO NOT USE THE INVERTER WELDER IN DANGEROUS ENVIRONMENTS: Do not use the in-
verter welder in damp or wet locations, or expose it to rain. Provide adequate space
surrounding the work area. Do not use in environments with a potentially explosive at-
mosphere.
KEEP CHILDREN AND UNTRAINED PERSONNEL AWAY FROM THE WORK AREA: All visitors
should be kept at a safe distance from the work area.
SAFETY SYMBOLS USED THROUGHOUT THIS MANUAL
SAFETY INSTRUCTIONS
Important: Please read the following instructions carefully, failure to do
so could lead to serious personal injury and / or damage to the invert-
er welder.
Danger / Caution: Indicates risk of personal injury and/or the possibility of
damage.
Warning: Risk of electrical injury or damage!
Note: Supplementary information.
29
NOTES

28
NOTES
5
SAFETY INSTRUCTIONS….cont
STORE THE INVERTER WELDER SAFELY WHEN NOT IN USE: The inverter welder should be
stored in a dry location and disconnected from the mains supply, and out of the reach
of children.
USE SAFETY CLOTHING / EQUIPMENT: Use a CE approved welding mask at all times with
the correct shade of filter lens. A fume extractor should be used particularly where there
is little or no ventilation.
PROTECT YOURSELF FROM ELECTRIC SHOCK: When working with the inverter welder,
avoid contact with any earthed items (e.g. pipes, radiators, hobs and refrigerators, etc.).
It is advisable wherever possible to use an RCD (residual current device) at the mains
socket.
STAY ALERT: Always watch what you are doing and use common sense. Do not operate
the inverter welder when you are tired or under the influence of alcohol or drugs.
DISCONNECT THE INVERTER WELDER FROM THE MAINS SUPPLY: When not in use and be-
fore servicing.
AVOID UNINTENTIONAL STRIKING: Make sure the main switch is in the Off position before
connecting the inverter welder to the mains supply.
NEVER LEAVE THE INVERTER WELDER CONNECTED WHILST UNATTENDED: Turn the inverter
welder off and disconnect it from the mains supply between jobs. Do not leave the in-
verter welder connected to the mains supply if no more welding is to be done.
DO NOT ABUSE THE MAINS LEAD: Never attempt to move the inverter welder by the
mains lead or pull it to remove the plug from the mains socket. Keep the mains lead
away from heat, oil and sharp edges. If the mains lead is damaged, it must be re-
placed by the manufacturer or its service agent or a similarly qualified person in order to
avoid unwanted hazards. All extension cables must be checked at regular intervals and
replaced if damaged.
CHECK FOR DAMAGED PARTS: Before every use of the inverter welder, any damage
found should be carefully checked to determine that it will operate correctly, safely and
perform its intended function. Any damaged, split or missing parts that may affect its
operation should be correctly repaired or replaced by an authorised service centre un-
less otherwise indicated in this instruction manual.
KEEP ALL COVERS / PANELS IN PLACE: Never operate the inverter welder with any covers /
panels removed, this is extremely dangerous.
MAINTAIN THE INVERTER WELDER WITH CARE: Keep the earth clamp and electrode hold-
er clean for the best and safest performance.
USE ONLY RECOMMENDED ACCESSORIES: Consult this user manual, your distributor or SIP
directly for recommended accessories. Follow the instructions that accompany the ac-
cessories. The use of improper accessories may cause hazards and will invalidate any
warranty you may have.
SECURE THE WORK-PIECE: Always use welding clamps to secure the work-piece. This
frees up both hands to operate the inverter welder correctly.
DO NOT OVERREACH: Keep proper footing and balance at all times.
USE THE RIGHT TOOL: Do not use the inverter welder to do a job for which it was not de-
signed.
DO NOT OPERATE THE INVERTER WELDER IN EXPLOSIVE ATMOSPHERES: Do not use the

6
SAFETY INSTRUCTIONS….cont
inverter welder in the presence of flammable liquids, gases, dust or other combustible
sources. Inverter welding will create sparks which can ignite the dust or fumes.
DO NOT EXPOSE THE INVERTER WELDER TO RAIN OR USE IT IN WET CONDITIONS: Water
entering the inverter welder will greatly increase the risk of electric shock and equipment
damage.
HAVE YOUR INVERTER WELDER REPAIRED BY A QUALIFIED PERSON: The inverter welder is in
accordance with the relevant safety requirements. Repairs should only be carried out
by qualified persons using original spare parts, otherwise this may result in considerable
danger to the user.
Stop operation immediately if you notice anything abnormal.
Always disconnect the plug from the mains supply before cleaning or servicing etc.
Be alert at all times, especially during repetitive, monotonous operations; Don't be
lulled into a false sense of security.
Use of improper accessories may cause damage to the inverter welder and sur-
rounding area as well as increasing the risk of injury.
Do not modify the inverter welder to do tasks other than those intended.
To avoid injury, the work-piece should never be held with bare hands; The work-piece
will become hot during normal welding operations, and stay hot for a period after the
weld is complete.
Appropriate personal protective equipment must be worn and must be de-signed to
protect against all hazards created. Severe permanent injury can result from using
inappropriate or insufficient protective equipment - Eyes in particular are at risk.
The work should be clamped firmly whilst welding, If its loose it could result in personal
injury or damage to the machine or item that is being welded.
Do not attempt any repairs to the welder unless you are a competent electrician or
engineer.
Ensure that the machine is connected to the correct supply voltage and protected
by a fuse or circuit breaker of the recommend rating.
Never allow the earth clamp and electrode holder to come into contact with each
other.
Understand the operating environment; Before each use the operator should assess,
understand and where possible reduce the specific risks and dangers associated with
the operating environment. Bystanders should also be made aware of any risks asso-
ciated with the operating environment.
Electromagnetic fields can interfere with various electrical and electronic devices
such as pacemakers; Consult your doctor before using any electric arc welder or
cutting device
Keep people with pacemakers away from your welding area when welding.
Do not wrap cable around your body while welding.
If the welder is to be used on business premises - ensure that all local and national
regulations are followed concerning the use of portable electrical appliances at
work.
27
PARTS LISTING WELDMATE HG2000A (05730)
Ref. No. Description SIP Part No. Ref.
No. Description SIP Part No.
1. Handle WE01-00112 14. Transformer WE01-00110
2. Cover WE01-00113 15. Plate WE01-00121
3. Choke coil Inductor WE01-00087 16. Lower panel WE01-00122
4. IGBT WE01-00088 17. NTC thermistor WE01-00123
5. Main PCB WE01-00114 18. Heatsink WE01-00124
6. Front panel WE01-00115 19. Inner panel WE01-00125
7. Potentiometer Knob WE01-00091 20. IGBT heatsink WE01-00126
8. Change over switch WE01-00092 21. NTC thermistor WE01-00103
9. Electrode holder lead
(c/w electrode holder) WE07-00036 22. Fan motor WE01-00127
10. Earth return lead
(c/w earth clamp) WE07-00037 23. Rear panel WE01-00128
11. Dinse socket WE01-00118 24. Mains lead WE01-00106
12. Panel WE01-00119 25. Switch WE01-00111
13. Output plate WE01-00120 26. Rectifier bridge WE01-00108

26
Ref. No. Description SIP Part No. Ref.
No. Description SIP Part No.
1. Handle WE01-00085 13. Transformer WE01-00110
2. Cover WE01-00086 14. Lower panel WE01-00098
3. Choke coil Inductor WE01-00087 15. NTC thermistor WE01-00099
4. IGBT WE01-00088 16. Heatsink WE01-00100
5. Main PCB WE01-00109 17. Left inner panel WE01-00101
6. Front panel WE01-00090 18. IGBT heatsink WE01-00102
7. Potentiometer Knob WE01-00091 19. NTC thermistor WE01-00103
8. Change over switch WE01-00092 20. Fan motor WE01-00104
9. Electrode holder lead
(c/w electrode holder) WE07-00036 21. Rear panel WE01-00105
10. Earth return lead
(c/w earth clamp) WE07-00037 22. Mains lead WE01-00106
11. Dinse socket WE01-00095 23. Switch WE01-00111
12. Front panel WE01-00096 24. Rectifier bridge WE01-00108
PARTS LISTING WELDMATE HG1600A (05728)
7
SAFETY INSTRUCTIONS….cont
Electric arc welders have the potential to cause a shock that could lead to injury or
death. Touching electrically ‘hot’ parts can cause fatal shocks and severe burns; While
welding, all metal components connected to the welder are electrically ‘hot’.
Keep your body and clothing dry. Never work in a damp area without ade-
quate insulation against electrical shock, stay on a dry duck board, or rubber
mat when dampness or sweat can not be avoided. Sweat, sea water or mois-
ture between the body and an electrically ’hot’ part or grounded metal reduces
the body surfaces electrical resistance enabling dangerous and possibly lethal
currents to flow through the body.
Never allow live metal parts to touch bare skin or any wet clothing, be sure
welding gloves are dry.
Before welding, check for continuity; Be sure the earth clamp is connected to
the work-piece as close to the welding areas as possible. Grounds connected
to building frame work or other remote locations from the welding area reduce
efficiency and increase the potential electric shock hazard. Avoid the possibility
of the welding current passing through lifting chains, crane cables or other elec-
tric paths.
Frequently inspect leads for wear, splits, cracks and any other damage. Imme-
diately replace those with worn or damaged insulation to avoid a possibly lethal
shock from bare leads.
During normal operation, the heat and sparks created during the welding process
have the potential to ignite flammable liquids, gases or other combustible material.
All inflammable materials must be removed from the area.
Have a suitable fire extinguisher available close by.
Causes of fire and explosion include; combustibles reached by the arc, flame,
flying sparks, hot slag or heated material, misuse of compressed gases and
cylinders and short circuits.
Flying sparks or falling slag can pass through cracks along pipes, through win-
dows or doors and through walls or floor openings and out of sight of the opera-
tor; Sparks and slag can fly up-to 10 metres.
Keep equipment clean and operable; Free of oil, grease and of metallic parti-
cles (in electrical parts) that can cause short circuits.
If combustibles are in the area. Do not weld , move the work if practical to an
area free of combustibles, avoid paint spray rooms, dip tanks, storage areas
and ventilators. If the work can not be moved, then move the combustibles at
least 10 metres away and out of the reach of sparks and heat or protect
ELECTRIC SHOCK
FIRE

8
SAFETY INSTRUCTIONS….cont
The welding arc produces ultraviolet (UV) and infrared (IR) rays as well as extreme tem-
peratures that can cause injury to your eyes and skin. Do not look at the welding arc
without proper eye protection.
The electric welding arc must not be observed with the naked eye. Always use a
welding mask; Ensure the welding mask is fitted with the correct shade of filter
lens for the welding current level, and covers the entire face from neck to the
top of the head.
Welding gauntlet gloves should be worn to protect the hands from burns, non-
synthetic overalls with buttons at the neck and wrist, or similar clothing should be
worn. Greasy overalls should not be worn. Wear suitable protective footwear.
Always wear correctly rated protective clothing which covers all areas of the
body; The operator should not weld with any bare skin showing to reduce the
chance of burns etc.
Avoid oily or greasy clothing, a spark may ignite them.
Hot metal such as electrode stubs and workpieces should never be handled
without gloves.
GLARE AND BURNS
against ignition with suitable and snug fitting, fire resistant covers or shields.
Walls touching combustibles on opposite sides should not be welded on, walls,
ceilings and the floor near the work area should be protected by heat resistant
covers or shields.
Openings (concealed or visible) in floors or walls within 10 metres may expose
combustibles to sparks.
Combustibles adjacent to walls, ceilings, roofs or metal partitions can be ignit-
ed by radiant or conducted heat.
After the work is done, check that the area is free of sparks, glowing embers and
flames.
An empty container that has held combustibles, or that can produce flamma-
ble or toxic vapours when heated, must never be welded, unless the container
has first been cleaned. Consult HSE INDG214, HSG250 and CS15. HSE docu-
ment CS15 includes information on cleaning by thorough steam or solvent/
caustic cleaning followed by purging and inserting with nitrogen, carbon diox-
ide or water filling just below working level.
A container with unknown contents should be treated as if it contained combus-
tibles (see previous paragraph), Do not depend on sense of smell or sight to
determine if it is safe to weld.
Hollow items must be vented before welding as they can explode.
Explosive atmosphere; Never weld when the air may contain flammable dust,
gas or liquid vapours (such as petrol).
25
PARTS LISTING WELDMATE HG1400A (05726)
Ref. No. Description SIP Part No. Ref.
No. Description SIP Part No.
1. Handle WE01-00085 13. Transformer WE01-00097
2. Cover WE01-00086 14. Lower panel WE01-00098
3. Choke coil Inductor WE01-00087 15. NTC thermistor WE01-00099
4. IGBT WE01-00088 16. Heatsink WE01-00100
5. Main PCB WE01-00089 17. Left inner panel WE01-00101
6. Front panel WE01-00090 18. IGBT heatsink WE01-00102
7. Potentiometer Knob WE01-00091 19. NTC thermistor WE01-00103
8. Change over switch WE01-00092 20. Fan motor WE01-00104
9. Electrode holder lead
(c/w electrode holder) WE07-00036 21. Rear panel WE01-00105
10. Earth return lead
(c/w earth clamp) WE07-00037 22. Mains lead WE01-00106
11. Dinse socket WE01-00095 23. Switch WE07-00022
12. Front panel WE01-00096 24. Rectifier bridge WE01-00108

24
WIRING DIAGRAM - 05730
9
SAFETY INSTRUCTIONS….cont
Ventilation must be adequate to remove the smoke and fumes during welding
(see the relevant safety standard for acceptable levels).
Toxic gases may be given off when welding, especially if zinc or cadmium
coated materials are involved, welding should be carried out in a well ventilat-
ed area and the operator should always be alert to fume build-up.
Areas with little or no ventilation should always use a fume extractor.
Vapours of chlorinated solvents can form the toxic gas phosgene when ex-
posed to U.V radiation from an electric arc. All solvents, degreasers and poten-
tial sources of these vapours must be removed from the arc area.
Severe discomfort, illness or death can result from fumes, vapours, heat, oxygen
enrichment or depletion that welding may produce. This will be prevented by
adequate ventilation or using a fume extractor. Never ventilate with oxygen.
Lead, cadmium, zinc, mercury, beryllium bearing and similar materials when
welded may produce harmful concentrations of toxic fumes. Adequate ventila-
tion must be provided for every person in the area. The operator should also
wear an air supplied respirator, for beryllium both must be used.
Metals coated with or containing materials that emit toxic fumes should not be
heated unless coating is removed from the work surface. The area should be
well ventilated or the operator should wear an air supplied respirator.
Work in a confined space only while it is being ventilated and if necessary whilst
wearing an air supplied respirator.
Gas leaks in a confined space should be avoided, leaking gas in large quanti-
ties can change oxygen concentration dangerously. Do not bring gas cylinders
into a confined space.
Leaving a confined space you must shut off the gas supply at the source to
prevent possible accumulation of gases in the space if down stream valves are
left open. Check to be sure that the space is safe before re entering it.
VENTILATION
First aid facilities and a qualified first aid person should be available for each
shift unless medical facilities are close by for immediate treatment of flash burns
to the eyes and skin.
Flammable hair products should not be used by persons intending to weld.
Warn bystanders not to watch the arc and not to expose themselves to the
welding arc rays or to hot metal.
Keep children away whilst welding, they may not be aware that looking at an
arc can cause serious eye damage.
Protect other nearby personnel from arc rays and hot sparks with a suitable non-
flammable partition.

10
SAFETY INSTRUCTIONS….cont
Some metals and metal composites have the potential to be highly
toxic; always wear a face mask .
When using the Inverter welder always ensure the operator as well as
those in the area use a welding mask with the correct shade filter
lens.
Caution: The warnings and cautions mentioned in this user manual can not
cover all possible conditions and situations that may occur. It must be under-
stood by the operator that common sense and caution are factors which can-
not be built into this product, but must be applied.
Vapours from chlorinated solvents can be decomposed by the heat of the arc
(or flame) to form phosgene a highly toxic gas and other lung and eye-irritating
products. The ultra violet (radiant) energy of the arc can also decompose tri-
chloroethylene and perchlorethylene vapours to form phosgene. Do not weld
where solvent vapours can be drawn into the welding atmosphere, or where the
radiant energy can penetrate to atmospheres containing even minute
amounts of trichloroethylene or perchlorethylene.
23
WIRING DIAGRAM - 05726 & 28

22
TROUBLESHOOTING
Note: If none of the above solutions work then contact your local distributor
for repair, or contact SIP technical for more advise.
ARC
Symptom Possible Cause Solution
Alarm light on. Overheated. Allow the to cool .
Difficult to strike an arc.
Damp electrode.
Incorrect electrode.
Warm the electrode or re-
place.
Select the correct size elec-
trode to match the amperage
set on the machine.
Burns through thin metal. Material too thin for
arc welding.
Use the TIG function.
TIG
Symptom Possible Cause Solution
Quality of weld is poor.
No gas flow.
Incorrect ceramic
nozzle.
Check condition of
tungsten.
Check gas flow and adjust as
required.
Select correct ceramic nozzle
to match tungsten.
Re-grind to shape or replace.
Overheating.
Fan problem.
Rear casing blocked,
obstructing air flow.
Poor connection on
earth clamp/
electrode holder.
Tungsten does not
match collet/collet
body.
Check fan connections, re-
place fan.
Check and clean.
Check and clean all connec-
tions.
Change collet/collet body to
match tungsten.
Difficult to strike an arc. Tungsten in poor
condition Re-grind to shape or replace.
Alarm light on. Overheated. Allow the to cool.
11
ELECTRICAL CONNECTION
Warning! It is the responsibility of the owner and the operator to read, understand and
comply with the following:
You must check all electrical products, before use, to ensure that they are safe.
You must inspect power cables, plugs, sockets and any other connectors for wear or
damage.
You must ensure that the risk of electric shock is minimised by the installation of appro-
priate safety devices; A residual current circuit Breaker (RCCB) should be incorporated
in the main distribution board. We also recommend that a residual current device
(RCD) is used. It is particularly important to use an RCD with portable products that are
plugged into a supply which is not protected by an RCCB. If in any doubt consult a
qualified electrician.
Connecting to the power supply 05726:
This SIP Inverter welder (05726) is fitted with a standard 230v ~ 13 amp type plug. Be-
fore using the Inverter welder, inspect the mains lead and plug to ensure that neither
are damaged. If any damage is visible have the welder inspected / repaired by a
suitably qualified person. If it is necessary to replace the plug a heavy duty impact
resistant plug would be preferable.
The wires for the plug are coloured in the following way:
Yellow / green Earth
Blue Neutral
Brown Live
As the colours of the wires may not correspond with the markings in your plug, pro-
ceed as follows: The wire which is coloured blue, must be connected to the terminal
marked with N or coloured black. The wire which is coloured brown, must be connect-
ed to the terminal, which is marked L or coloured red. The wire which is coloured yel-
low / green should be connected to the terminal which is coloured the same or
marked
Always secure the wires in the plug terminal carefully and tightly. Secure the cable in
the cord grip carefully.

12
Connecting to the power supply 05728 and 05730:
The 05728 and 05730 are supplied without a plug fitted, they must not be connected
to a standard 13A supply, consult the technical specification table (page14) for the
required rating, if in doubt contact a qualified electrician.
ELECTRICAL CONNECTION….cont
Note: If an extension lead is necessary in order to reach the mains supply; The
cross section should be checked so that it is of sufficient size so as to reduce the
chances of voltage drops. Always fully unwind the lead during use.
Warning: Never connect live or neutral wires to the earth terminal of the plug.
Only fit an approved plug with the correct rated fuse. If in doubt consult a
qualified electrician.
Note: Always make sure the mains supply is of the correct voltage and the
correct fuse protection is used. In the event of replacing the fuse always
replace the fuse with the same value as the original.
Note: Due to the input current required to run the inverter welder, it is advisa-
ble not to use an extension lead. No more than 1 welder should be ran
from the same ring main for the same reason.
21
MAINTENANCE
Clear dust from the machine at regular intervals, if used in a dirty environment
the machine should be cleaned once a month.
Check all connections are clean and tight, if there is any oxidization clean the
connection with a mild abrasive or wire brush.
Check all cables for damage or degradation to the insulation, replace if any is
found.
Check electrode holder and earth clamps condition; Ensure they clamp tightly,
replace if damaged or loose.
If the machine is not to be used for a long time, store it in the original packing
and in a dry place.

20
OPERATING INSTRUCTIONS….cont
WELDING
Caution: Ensure all protective equipment is worn and bystanders are not in
the vicinity.
Switch the welder on.
Set the amperage control to match the tungsten size.
Select the TIG welding mode, press the arrow button down on the welding se-
lector switch.
Open the TIG torch gas valve.
Place a face mask over your face (not supplied).
Initiate the arc; The electronics on these welders allow for “lift arc” start. Touch
the tungsten onto the workpiece, and lean the TIG torch back onto the ceram-
ic, in turn lifting the tungsten off the workpiece to initiate a welding arc. When
the arc is created proceed steadily in one direction, maintaining a constant
distance between the tip of the tungsten and the workpiece.
Once all work has been done, switch the machine off and turn the gas off.
Note: This is a DC welder and therefore can not be used for aluminium
welding.
13
Guarantee:
These SIP Inverter welders are covered by a 12 month parts and labour warranty cov-
ering failure due to manufacturers defects. This does not cover failure due to misuse or
operating the inverter welder outside the scope of this manual - any claims deemed
to be outside the scope of the warranty may be subject to charges Including, but not
limited to parts, labour and carriage costs, failure to regularly clean your inverter weld-
er will shorten its working life and reduce performance.
The warranty does not cover consumable items such as electrode holders & clamps,
etc.
GUARANTEE
Note: Proof of purchase will be required before any warranty can be hon-
oured.
CONTENTS AND ACCESSORIES
Note: If any of the above are missing or damaged, contact your distributor
immediately.
Inverter Welder 2m Welding Cable with Electrode Holder
Manual 2m Earth Cable with Earth Clamp

14
TECHNICAL SPECIFICATION
Note: Only the Weldmate HG1400A can be operated from a 13A supply.
Note: Operation of the Weldmate HG1600A and HG2000A from a 13A
supply will invalidate the warranty.
Model 05726
Weldmate HG1400A
05728
Weldmate HG1600A
05730
Weldmate HG2000A
Input Voltage 230V ~ 50Hz 230V ~ 50Hz 230V ~ 50Hz
Input Current 13 amps 16 amps 20 amps
OCV 69V 69V 69V
Output Current Range
(Amps) 20 - 140 20 - 160 20 - 200
Welding Voltage - Arc 20.8V - 25.6V 20.8V - 26.4V 20.8V - 28V
Welding Voltage - Tig 10.8V - 15.6V 10.8V - 16.4V 10.8V - 18V
Electrode Size 1.6-3.2mm 1.6-4mm 1.6-5mm
Duty Cycle @ 20°C 140 amps @ 60% 160 amps @ 60% 200 amps @ 50%
Duty Cycle @ 40°C 140 amps @ 20% 160 amps @ 20% 200 amps @ 15%
Power Factor 0.75 0.75 0.75
Efficiency 85% 85% 85%
Insulation Class H H H
Protection IP21S IP21S IP21S
Net Weight 4.5Kg 4.5Kg 4.75Kg
19
OPERATING INSTRUCTIONS….cont
PREPARING THE TUNGSTEN
It is important to choose a tungsten with the correct diameter for
the current to be used. The tungsten will normally protrude from
the ceramic nozzle by 2 or 3mm, in order to gain access to are-
as such as internal corners the tungsten can be made to pro-
trude by up to 8mm. The tungsten should be sharpened facing
the grinding wheel (see right picture). The tip should be perfectly
concentric in order to avoid arc deviations. It is best to regularly
inspect the tungsten to maintain peak condition.
Clean the area to be welded, and the earthing point of all rust, paint and con-
taminants etc.
Connect the earth clamp dinse plug into the positive dinse socket on the weld-
er.
Place the earth clamp onto a cleaned area of the workpiece.
Fit the grounded tungsten into the TIG torch head.
Connect the TIG torch (not supplied) power connector to the negative dinse
socket on the welder.
Connect the regulator (not supplied) onto the gas bottle.
Connect the TIG torch gas pipe onto the regulator.
Check the TIG torch gas valve is closed.
Turn the regulator on.
Connect the welder to the electrical supply but do not switch on.
PREPARATION FOR WELDING
Note: The above is a guide only; always try a short weld test at the setting
selected. It is normal to make minor adjustments to achieve the required
weld.
Welding
Thickness mm
Tungsten
Diameter mm
Welding Current
Steel
Welding Current
Stainless Steel
0.5 1.0 30-60 15-30
1.0 1.6 50-70 50-70
1.5 1.6 90-110 60-90
2.0 1.6 100-130 80-100
3.0 2.4 120-140 100-130
4.0 2.4 150-200 130-200

18
OPERATING INSTRUCTIONS….cont
Connect the electrode lead and earth lead to the correct terminal on the front
of the welder.
Fit the required electrode securely into the electrode holder.
Switch the welder on.
Set the amperage control to match your electrode size.
Select the ARC welding mode, press the arrow button up on the welding selec-
tor switch.
Place a face mask (not supplied) over your face.
Note: Be aware that the electrode is now live, simply touching any part of
the workpiece will create a spark.
Bring the electrode into contact with the workpiece using a light tapping action
and withdrawing to create a gap of 1.5 mm –3.0 mm.
When the arc is created, proceed steadily in one direction keeping the gap
between the electrode and the workpiece constant.
When the weld is complete simply remove the electrode from the workpiece.
Remove any excess weld / slag with a wire brush / hammer (not supplied).
ARC WELDING
Caution: Ensure all protective equipment is worn and bystanders are not in
the vicinity.
The required tungsten diameter is determined by the thickness of the material to be
welded, for each tungsten size there are strict current limits which should be adhered
to. Too great a current causes excessive tungsten consumption and weld pool con-
tamination, whilst a too small a current causes arc instability.
The table below gives a guide as to which tungsten is most suitable according to the
material thickness. This table is only a guide, and values given are a indication only.
These welding current values are for thorium 2% (red) tungsten electrodes.
You will need to purchase the following items in order to TIG weld (not supplied):
TIG WELDING
TIG torch (with gas valve)* Regulator Tungsten electrode
Bottle of argon gas Filler rod
* SIP Tig torch: SR17V, Part Number 05029.
15
GETTING TO KNOW YOUR INVERTER WELDER
1
2
4
6
7
8
5
Ref. No. Description Ref. No. Description
1. Negative Dinse Socket 6. Welding selector switch
2. Positive Dinse Socket 7. Welding Cable (2m c/w electrode holder)
3. Amperage control 8. Earth Cable (2m c/w earth clamp)
4. Carry handle 9. Mains Lead
5. On/Off Switch
3
9

16
GETTING TO KNOW YOUR INVERTER WELDER….cont
Amperage Control
Power Light
VRD Light
Alarm
Welding Mode
Selector Switch
Amperage Control To set the amperage for your desired thick-
ness of welding.
Power Light Indicates power is on.
VRD Light*
(Voltage Reduction Device)
Reduces the unloaded open circuit voltage
across the output terminals for extra safety.
Alarm Comes on when machine has overloaded.
Welding Selector Switch Select to weld in ARC or TIG mode.
*Note: VRD (voltage reduction device) is a safety feature which maintains
the OCV is less than 20vDC when the welding terminals are unloaded. It
Also assists starting in Lift-Tig mode.
17
OPERATING INSTRUCTIONS
There are no hard and fast rules by which a particular gauge of electrode is selected,
usually this is determined by the type of welding required and the thickness of the
workpiece e.g. a butt weld in 1.5mm (1/16”) sheet metal can be done by a 1.6mm or
2.0mm electrode, the difference being that the 2.0mm electrode will do the job
more quickly.
The table below gives a guide as to which electrode is most suitable according to the
material thickness. This table is only a guide, and values given are an indication only.
These welding current values are for the E6013 electrodes, for other types of electrode
consult their data sheet.
Electrode Size mm Material Thickness mm Welding Current (A)
1.6 1 - 1.6 25 - 40
2.0 1.6 - 2.6 40 - 70
2.5 2.6 - 4.0 60 - 100
3.25 3.0 - 5.0 80 - 130
4.0 5.0 - 7.0 130 - 170
Note: The above is a guide only; always try a short weld test at the setting
selected. It is normal to make minor adjustments to achieve the required
weld.
The welder should be set to a specific amperage to match the electrode size (see
above table).
The amperage control is operated by rotating the knob on the front of the welder;
Rotate the knob clockwise to increase the amperage and anticlockwise to reduce the
amperage. Once the amperage control is set do a short weld and check for correct
fusion.
AMPERAGE CONTROL
Clean the area to be welded, and the earthing point of all rust, paint and con-
taminants etc.
Place the earth clamp on to a cleaned area of the workpiece.
Connect the welder to the electrical supply but do not switch on.
PREPARATION FOR WELDING
ARC WELDING