instruction manual
INSTRUCTION
MANUAL
XTI-201 AC/DC
Operator Manual
ISSUE 2
Welcome
Thank you and congratulations on choosing Parweld. This Owner’s Manual is designed to help you
get the most out of your Parweld products. Please take time to read the Safety precautions. They will
help you protect yourself against potential hazards in the workplace. With proper maintenance this
equipment should provide years of reliable service. All our systems conform to ISO9001: 2000 and are
independently audited by NQA.
The entire product range carries the CE mark, and is constructed in accordance with European directives
and the product specific standards where they apply.
Further Information
Parweld is the UK’s leading manufacturer of MIG, TIG and Plasma torches and consumables.
For more information about Parweld’s complete range visit: www.parweld.com
1.0 Safety Precautions
Page
4
2.0 Product description
6
3.0 Technical Specifications
6
4.0 Description of controls
6
5.0 Installation
7
5.1 Unpacking the Machine
7
5.2 Location
7
5.3 Input and grounding connection 7
5.4 Output Polarity Connections
7
5.5 Torch Installation
7
5.6 Work return lead connection
7
6.0 Operation
8
6.1 MMA Welding guide
8
6.2 Basic TIG welding guide
9
7.0 Fault finding
8.0 Accessories
11
9.0 Statement of Warranty
15
12
Contents
Contents
SAFETY
1.0 Safety Precautions
Wear a safety harness if working above floor level.
ELECTRIC SHOCK can kill.
Clamp work cable with good metal-to-metal contact to
work piece or worktable as near the weld as practical.
Touching live electrical parts can cause fatal shocks
or severe burns. The electrode and work circuit is
electrically live whenever the output is on. The input
power circuit and machine internal circuits are also
live when power is on.
Do not touch live electrical parts.
Wear dry, sound insulating gloves and body
protection.
Insulate yourself from work and ground using dry
insulating mats or covers big enough to prevent any
physical contact with the work ground.
Additional safety precautions are required when any
of the following electrically hazardous conditions
are present: in damp locations or while wearing wet
clothing; on metal structures such as floors, gratings,
or scaffolds; when in cramped positions such as
sitting, kneeling, or lying; or when there is a high risk
of unavoidable or accidental contact with the work
piece or ground.
Disconnect input power before installing or servicing
this equipment. Lockout/tagout input power according
to Safety Standards.
Properly install and ground this equipment according
to national and local standards.
Always verify the supply ground - check and ensure
that input power cable ground wire is properly
connected to ground terminal in the receptacle outlet.
When making input connections, attach proper
grounding conductor first - double-check connections.
Frequently inspect input power cable for damage or
bare wiring - replace cable immediately if damaged bare wiring can kill.
Turn off all equipment when not in use.
Do not use worn, damaged, under sized, or poorly
spliced cables.
Do not drape cables over your body.
If earth grounding of the work piece is required,
ground it directly with a separate cable.
Do not touch electrode if you are in contact with the
work, ground, or another electrode from a different
machine.
Use only well-maintained equipment. Repair or
replace damaged parts at once. Maintain unit
according to manual.
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Keep all panels and covers securely in place.
Insulate work clamp when not connected to work
piece to prevent contact with any metal object.
Welding produces fumes and gases. Breathing these
fumes and gases can be hazardous to your health.
FUMES AND GASES can be hazardous.
Keep your head out of the fumes. Do not breathe the
fumes.
If inside, ventilate the area and/or use local forced
ventilation at the arc to remove welding fumes and
gases.
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 degreasers.
Work in a confined space only if it is well ventilated,
or while wearing an air-supplied respirator. Always
have a trained watch person nearby. Welding fumes
and gases can displace air and lower the oxygen level
causing injury or death. Be sure the breathing air is
safe.
Do not weld in locations near de-greasing, cleaning, or
spraying operations. The heat and rays of the arc can
react with vapours to form highly toxic and irritating
gases.
Do not weld on coated metals, such as galvanized,
lead, or cadmium plated steel, unless the coating
is removed from the weld area, the area is well
ventilated, and while wearing an air-supplied
respirator. The coatings and any metals containing
these elements can give off toxic fumes if welded.
ARC RAYS can burn eyes and skin.
Arc rays from the welding process produce intense,
visible and invisible (ultraviolet and infrared) rays that
can burn eyes and skin. Sparks fly off from the weld.
Wear an approved welding helmet fitted with a proper
shade of filter lense to protect your face and eyes
when welding or watching
Wear approved safety glasses with side shields under
your helmet.
Use protective screens or barriers to protect others
from flash, glare and sparks; warn others not to watch
the arc.
Wear protective clothing made from durable, flame
WELDING can cause fire or explosion.
Remove all flammables within 10m of the welding
arc. If this is not possible, tightly cover them with
approved covers.
Do not weld where flying sparks can strike flammable
material.
Protect yourself and others from flying sparks and hot
metal.
Be alert that welding sparks and hot materials from
welding can easily go through small cracks and
openings to adjacent areas.
Watch for fire, and keep a fire extinguisher nearby. Be
aware that welding on a ceiling, floor, bulkhead, or
partition can cause fire on the hidden side.
Do not weld on closed containers such as tanks,
drums, or pipes, unless they are properly prepared
according to local regulations
Connect work cable to the work as close to the
welding area as practical to prevent welding current
from travelling along, possibly unknown paths and
causing electric shock, sparks, and fire hazards.
MAGNETIC FIELDS can affect pacemakers.
Pacemaker wearers keep away.
Wearers should consult their doctor before going near
arc welding, gouging, or spot welding operations.
NOISE can damage hearing.
Noise from some processes or equipment can damage
hearing.
Wear approved ear protection if noise level is high.
Shielding gas cylinders contain gas under high
pressure.
CYLINDERS can explode if damaged.
Protect compressed gas cylinders from excessive
heat, mechanical shocks, physical damage, slag, open
flames, sparks, and arcs. Install cylinders in an upright
position by securing to a stationary support or cylinder
rack to prevent falling or tipping. Keep cylinders away
from any welding or other electrical circuits. Never
drape a welding torch over a gas cylinder. Never allow
a welding electrode to touch any cylinder. Never weld
on a pressurized cylinder - explosion will result. Use
only correct shielding gas cylinders, regulators, hoses,
and fittings designed for the specific application;
maintain them and associated parts in good condition.
Turn face away from valve outlet when opening
cylinder valve.
Wear oil-free protective garments such as leather
gloves, heavy shirt, cuffless trousers, high shoes, and
a cap. Remove any combustibles, such as a butane
lighter or matches, from your person before doing any
welding.
FLYING METAL can injure eyes.
Welding, chipping, wire brushing, and grinding cause
sparks and flying metal. As welds cool they can throw
off slag. Wear approved safety glasses with side
shields even under your welding helmet.
BUILDUP OF GAS can injure or kill.
Shut off shielding gas supply when not in use. Always
ventilate confined spaces or use approved air-supplied
respirator.
Use the right equipment, correct procedures,
and sufficient number of persons to lift and move
cylinders.
Read and follow instructions on compressed gas
cylinders, associated equipment, and Compressed Gas
Association (CGA) recommendations.
HOT PARTS can cause severe burns.
Do not touch hot parts with bare hands.
Allow cooling period before working on gun or torch.
To handle hot parts, use proper tools and/or wear
heavy, insulated welding gloves and clothing to
prevent burns.
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SAFETY
resistant material (leather, heavy cotton, or wool)
and foot protection. Welding on closed containers,
such as tanks, drums, or pipes, can cause them to
blow up. Sparks can fly off from the welding arc. The
flying sparks, hot work piece, and hot equipment can
cause fires and burns. Accidental contact of electrode
to metal objects can cause sparks, explosion,
overheating, or fire. Check and be sure the area is safe
before doing any welding.
CONTROLS
3.0 Technical Specifications
5
2
3
4
11
12
13
15
6
7
8
9
10
11
14
Input voltage
Frequency
Input current
Fuse rating
Output OCV
Output load
voltage
Output Current
XTI-201 AC/DC
230V +/- 10%
50/60Hz
20A max
15 eff
16A
66
10-26V
10-200A DC
Control Plug wiring
The link between pins 1 and 2 should only be fitted if
you are using a remote current control. Wire colours
shown refer to the Parweld ERGO TIG torch wiring.
1
16
17
2.0 Product Description
This welding machine is manufactured using advanced
inverter technology. The input voltage is rectified to
DC and then inverted
to high frequency AC voltage. before being converted
back to DC for the output .This allows the use of a
much smaller transformer and so allowing weight
saving and improved power efficiency.
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4.0 Description of Controls
1) ON OFF Switch for switching on or off the mains
supply to the machine. Note the output of the
machine is permanently on in MMA mode unless the
on/off switch is in the off position.
2) Fault light This indicates a fault or over temperature
condition with the machine refer to the fault finding
section for further information
3) Power light This indicates mains power is applied
to the machine and that the machine is currently
switched on when the light is illuminated
4) TIG mode, this toggles between LIFT-ARC mode and
HF start TIG.
5) Process selector. This switch has 3 positions the top
position selects MMA welding and will latch on the
output when in this position. The centre position is
TIG welding with 2 touch trigger control (momentary).
The bottom position is TIG welding with 4 touch
control (latching)
6) Output power switch. This switch has 3 positions
the top position selects DC output in TIG or MMA
mode. The centre position selects AC output in MMA
or TIG mode and the bottom position allows a gas test
or purge to be performed when TIG welding.
7) Cleaning Control. This control allows the balance
of the AC wave to be altered so increasing or reducing
the cleaning effect when AC TIG welding.
8) Post Gas, this allows control of the post gas flow at
the end of a weld when in TIG mode. It is adjustable
from 3 to 10 seconds.
9) Downslope/Arc force. This control is dual function
in TIG mode it controls the downslope time for the
welding current after the trigger is released from 0 to
10 seconds.
In MMA mode it allows adjustment of the welding Arc
5.0 Installation
Read entire installation section before starting
installation.
SAFETY PRECAUTIONS
• ELECTRIC SHOCK can kill.
• Only qualified personnel should perform this
installation.
• Only personnel that have read and understood the
Operating Manual should install and operate this
equipment.
• Machine must be grounded per any national, local
or other applicable electrical regulations.
• The power switch is to be in the OFF position when
installing work cable and electrode cable and when
connecting other equipment.
5.1 Unpacking the Machine
Carefully remove the machine from the packaging,
we recommend you retain the packaging until the
machine has been fully installed and tested incase it
has been damaged in transit and has to be returned to
the re-seller.
5.2 Location
Be sure to locate the welder according to the following
guidelines:
In areas, free from moisture and dust.
Ambient temperature between 0-400C.
In areas, free from oil, steam and corrosive gases.
In areas, not subjected to abnormal vibration or shock.
In areas not exposed to direct sunlight or rain.
Place at a distance of 12” (300 mm) or more from
walls or similar that could restrict natural airflow for
cooling.
5.3 Input and grounding connection
WARNING
Before starting the installation, check that your
power supply is adequate for the voltage, amperage,
phase, and frequency specified on the Machine
nameplate.
Operate the welding power source from a singlephase 50/60 Hz, AC power supply. The input voltage
must match one of the electrical input voltages shown
on the input data label on the unit nameplate. The
XTI-201 ACDC machine should only be used on 230V
supply. Refer to the specifications table for voltage
tolerances.
Have a qualified electrician connect the input plug.
For long runs over 30m , larger copper wires should
be used. The green/yellow wire in the input cable
connects to the frame of the machine. This ensures
proper grounding of the machine when the machine
plug is inserted into the receptacle.
OPERATION
force so giving control of penetration.
10) Initial Current/Hotstart This control is dual
function
in TIG mode it sets the start level for the welding
current as a percentage of the main welding current.
In MMA mode it allows adjustment of the welding
current surge on arc striking to give reliable arc
striking in all conditions.
11) Gas Output connection This is a 3/8 BSP
connection for the gas output used in TIG welding.
12) Main amperage control. This control is used to
control the welding current in TIG and MMA modes.
13) Positive connection This is used to connect the
electrode holder in MMA or the earth lead in TIG
welding.
14) Negative connection. This is used to connect
the earth lead in MMA welding or the torch in TIG
welding.
15) control socket This is used to control the machine
remotely using a trigger or amperage control
5.4 Output Polarity Connections
Electrode polarity
MMA electrodes are generally connected to the ‘+’
terminal and the work lead to the ‘-‘terminal
But if in doubt consult the electrode manufacturer’s
literature.
IF TIG welding the torch should always be connected
to the ‘-’ terminal.
5.5 Torch installation
MMA cable connections
Connect electrode lead to positive terminal
TIG welding cable connection
Connect the TIG torch to the - terminal
5.6 Work return lead connection
MMA cable connections
Connect work lead to negative terminal
TIG welding
Connect the work return lead to the + terminal
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OPERATION
6.0 Operation
WARNING
When using an open arc process, it is necessary to
use correct eye, head, and body protection.
6.1 MMA Welding Guide
Effects of MMA welding various materials
High tensile and alloy steels
The two most prominent effects of welding these
steels are the formation of a hardened zone in the
weld area, and, if suitable precautions are not taken,
the occurrence in this zone of under-bead cracks.
Hardened zone and under-bead cracks in the weld
Types of electrodes
Arc welding electrodes are classified into a number
of groups depending on their applications. There are
a great number of electrodes used for specialized
industrial purposes which are not of particular interest
for everyday general work. These include some low
hydrogen types for high tensile steel, cellulose types
for welding large diameter pipes, etc. The range of
electrodes dealt with in this publication will cover the
vast majority of applications likely to be encountered;
are all easy to use and all will work on even the most
basic of welding machines.
Metals being joined & electrode comments
Mild steel 6013 ideal electrodes for all general purpose work.
Features include outstanding operator appeal, easy
arc starting and low spatter.
Mild steel 7014 all positional electrode for use on mild and
galvanized steel furniture, plates, fences, gates, pipes
and tanks etc. Especially suitable for vertical down
welding.
area may be reduced by using the correct electrodes,
preheating, using higher current settings, using larger
electrodes sizes, short runs for larger electrode
deposits or tempering in a furnace.
Manganese steels
The effect on manganese steel of slow cooling from
high temperatures is enbrittlement. For this reason it
is absolutely essential to keep manganese steel cool
during welding by quenching after each weld or skip
welding to distribute the heat.
Cast iron
Most types of cast iron, except white iron, are
weldable. White iron, because of its extreme
brittleness, generally cracks when attempts are made
to weld it. Trouble may also be experienced when
welding white-heart malleable, due to the porosity
caused by gas held in this type of iron.
8
Copper and alloys
The most important factor is the high rate of heat
conductivity of copper, making preheating of heavy
sections necessary to give proper fusion of weld and
base metal.
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Cast iron
99% nickel suitable for joining all cast irons except
white cast iron
Stainless steel
318l-16 high corrosion resistance. Ideal for dairy work,
etc. On stainless steels.
6.2 Basic TIG Welding guide
Tig welding cable connection
Connect the TIG torch to the - terminal and the work
4
TIG welding guide ranges
4
5
6
5
6
7
3
OPERATION
lead to the + terminal for direct current straight
polarity. Direct current straight polarity is the most
widely used polarity for DC TIG welding. It allows
limited wear of the electrode since 70% of the heat is
8
2
9
10
1
11
7
1
Torch starting in Lift TIG mode
Ensure the gas supply is switched on to the machine.
Briefly contact the tip of the tungsten electrode down
onto the work piece with the torch at around 700 from
vertical. Depress the trigger to start the gas flow and
switch on the power, lift the torch up from the work
piece to draw out an arc. To prevent melting of the
end of the tungsten the machine will increase the
output current when it detects the rise in arc voltage
as the tungsten is lifted from the work piece. At the
end of the weld release the torch trigger and the
power will slope down and switch off.
2
3
concentrated at the work piece. Connect the gas hose
on the TIG torch to the gas outlet on the gas regulator.
Move the selector switch on the front panel of the
machine to the LIFT-TIG position.
Electrode
diameter
0.040” (1.0mm)
1/16” (1.6mm)
3/32” (2.4mm)
8
9
10
1
1
AC current
(amps)
15-30
60-120
100-180
DC current
(amps)
20-60
75-150
150-250
Tungsten electrode types
Type
Thoriated 2%
Ceriated 2%
Torch starting in HF mode
Ensure the gas supply is switched on to the machine.
Hold the torch with the tip of the tungsten approx 2-3
mm from the job. Depress the trigger to start the gas
flow and switch on the power. At the end of the weld
release the torch trigger and the power will slope
down and switch off.
Zirconiated
Application
DC welding of
mild steel,
Stainless steel
and Copper
DC welding
of mild steel,
Stainless steel,
Copper
AC welding of
aluminium,
magnesium and
their alloys
AC welding of
aluminium,
magnesium and
their alloys
Colour
Red
Grey
White
Guide for selecting filler wire diameter
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FAULT
FINDING
Filler wire diameter
1/16” (1.6 mm)
3/32” (2.4 mm)
1/8” (3.2 mm)
3/16” (4.8 mm)
Current range
20 - 90
65 - 115
100 - 165
200-350
The filler wire diameter specified is a guide only, other
diameter wires may be used according to the welding
application.
Shielding gas selection
Alloy
Aluminium &
alloys
Carbon steel
Stainless steel
Nickel alloy
Copper
Titanium
Shielding gas
Pure Argon
Pure Argon
Pure Argon
Pure Argon
Pure Argon
Pure Argon
adjust only one parameter at a time so you become
familiar with its effect.
AC TIG welding
1)Connect the torch to the - connection and the gas
hose to the gas outlet.
2) Connect the trigger control plug on the torch to the
trigger socket.
3) Connect the Earth lead to the + connection.
4) Set the process mode to 2T or 4T if you prefer a
latching trigger action. (Note in 4T position you must
press and release to start the process and press and
release again to stop the process)
5) Select AC output from (centre position)
6) Select HF start (bottom position)
7) Dial up the welding amperage required
8) Set the starting amperage at 50%
9) Set the down slope at 5 seconds
10) Set the post gas at around 5 seconds
Machine setup for TIG welding
11) Set the cleaning control to 0.
DC TIG welding
You are now ready to weld. The above settings are a
guide and you should adjust to suit the job you are
welding if you are unfamiliar with the machine try to
adjust only one parameter at a time so you become
familiar with its effect. With AC TIG welding the
cleaning control is used to adjust the balance between
heating and cleaning the work
1)Connect the torch to the - connection and the gas
hose to the gas outlet.
2) Connect the trigger control plug on the torch to the
trigger socket.
3) Connect the Earth lead to the + connection.
4) Set the process mode to 2T or 4T if you prefer a
latching trigger action. (Note in 4T position you must
press and release to start the process and press and
release again to stop the process)
5) Select DC output from (top position)
6) Select HF start (bottom position)
7) Dial up the welding amperage required
8) Set the starting amperage at 50%
9) Set the down slope at 5 seconds
10) Set the post gas at around 5 seconds
You are now ready to weld. The above settings are a
guide and you should adjust to suit the job you are
welding if you are unfamiliar with the machine try to
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MMA welding problem
Description
Gas pockets
or voids in
weld metal
(porosity)
Possible cause
(a) Electrodes
are damp
(b) Welding
current is too
high.
(c) Surface
impurities such
as oil, grease,
paint, etc
Remedy
(a) Dry electrodes
before use
(b) Reduce
welding current
(c) Clean joint
before welding
Crack occurring in weld
metal soon
after solidification.
(a) Rigidity of
joint.
(b) Insufficient
throat thickness.
(c) Cooling rate is
too high.
(a) Redesign
to relieve weld
joint of severe
stresses or use
crack resistance
electrodes.
(b) Travel slightly
slower to allow
greater build up in
throat.
(c) Preheat plate
and cool slowly.
A gap is left
by failure
of the weld
metal to fill
the root of
the weld
(a) Welding
current is too
low.
(b) Electrode too
large for joint.
(c) Insufficient
gap
(d) Incorrect
sequence
(a) Increase
welding current
(b) Use smaller
diameter
electrode.
(c) Allow wider
gap
(d) Use correct
build-up sequence
Description
Portions of
the weld
run do not
fuse to the
surface of
the metal or
edge of the
joint.
Possible cause
(a) Small
electrodes used
on heavy cold
plate
(b) Welding
current is too
low
(c) Wrong
electrode angle
(d) Travel speed
of electrode is
too high
(e) Scale or dirt
on joint surface
Remedy
(a) Use larger
electrodes and
preheat the plate
(b) Increase
welding current
(c) Adjust angle
so the welding arc
is directed more
into the base
metal
(d) Reduce
travel speed of
electrode
(e) Clean surface
before welding.
Non-metallic
particles
are trapped
in the weld
metal (slag
inclusion).
a) Non-metallic
particles may
be trapped in
undercut from
previous run
(b) Joint
preparation too
restricted
(c) Irregular
deposits allow
slag to be
trapped.
(d) Lack of
penetration with
slag trapped
beneath weld
bead.
(e) Rust or
mill scale is
preventing full
fusion.
(f) Wrong
electrode for
position in which
welding is done.
a) If bad undercut
is present, clean
slag out and cover
with a run from a
smaller diameter
electrode.
(b) Allow for
adequate
penetration and
room for cleaning
out the slag
(c) If very bad,
chip or grind out
Irregularities
(d) Use smaller
electrode with
sufficient current
to give adequate
penetration.
adequate
penetration. Use
suitable tools to
remove all slag
from corners
(f) Use electrodes
designed for
position in which
welding is done,
otherwise proper
control of slag is
difficult.
FAULT
FINDING
7.0 Fault Finding
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FAULT
FINDING
Description
Dirty weld
pool
TIG welding problems
Weld quality is dependent on the selection of the
correct consumables, maintenance of equipment and
proper welding technique.
Description
Excessive
bead build
up or poor
penetration
or poor
fusion at
edges of
weld
Weld bead
too wide
and flat or
undercut
at edges
of weld or
excessive
burn
through
Weld bead
too small or
insufficient
penetration
or ripples
in bead
are widely
spaced
apart
Weld bead
too wide or
excessive
bead build
up or
excessive
penetration
in butt joint
Uneven leg
length in
fillet joint
Electrode
melts when
arc is struck
Possible Cause
Welding current is
too low
Remedy
Increase weld
current and/
or faulty joint
preparation
Welding current is
too high
Decrease weld
current
Travel speed too
fast
Reduce travel
speed
Travel speed too
slow
Increase travel
speed
Wrong placement
of filler rod
Re-position filler
rod
Electrode is
connected to the
‘+’ terminal
Connect the
electrode to the
‘-‘ terminal
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Possible Cause
(a) Electrode
contaminated
through contact
with work piece or
filler rod material
(b) Gas contaminated with air
Remedy
(a) Clean the
electrode by
grinding off the
contaminates
(b) Check gas
lines for cuts
and loose fitting
or change gas
cylinder
(a) No gas flowing
Electrode
(a) Check the
melts or
to welding region
gas lines for
oxidizes
(b) Torch is clogged kinks or breaks
when an arc with dust
and gas cylinder
is struck
contents
(c) Gas hose is cut
(b) Clean torch
(d) Gas passage
contains impurities (c) Replace gas
hose
(e) Gas regulator is
(d) Disconnect
turned off
gas hose from
(f) Torch valve is
torch then raise
turned off
gas pressure
(g) The electrode
to blow out
is too small for the impurities.
welding current
(e) Turn on
(f) Turn on
(g) Increase
electrode
diameter or
reduce the
welding current
Poor weld
Inadequate
Increase gas
finish
shielding gas
flow or check
gas line for gas
flow problems
Arc flutters (a) Tungsten
(a) Select
during TIG
electrode is too
the right size
welding
large for the
electrode. Refer
welding current
to basic TIG
welding guide.
(b) Absence of
oxides in the Weld (b) Refer basic
pool.
TIG welding
guide for ways
to reduce arc
flutter
Arc start is
not smooth
Possible Cause
(a) Work clamp is
not connected to
the work piece or
the work/torch
leads are not
connected to the
machine
(b) Torch lead is
disconnected
(c) Gas flow
incorrectly set,
cylinder empty or
the torch valve is
off
(a) Tungsten
electrode is too
large for the
welding current .
(b) The wrong
electrode is being
used for the
welding job.
(c) Gas flow rate is
too high.
(d) Incorrect
shielding gas is
being used.
(e) Poor work
clamp connection
to work piece
Remedy
a) Connect the
work clamp to
the work piece
or connect the
work/torch
leads to the
right welding
terminals.
(b) Connect it to
the ‘.’ terminal.
(c) Select the
right flow
rate, change
cylinders or turn
torch valve on.
(a) Select
the right size
electrode
(b) Select the
right electrode
type. Refer
to basic TIG
welding guide
(c) Select the
correct rate for
the welding job.
Refer to basic
TIG welding
guide
(d) Select the
right shielding
gas. Refer
to basic TIG
welding guide
(e) Improve
connection to
work piece
Power
source problems
Description
The
welding arc
cannot be
established
Maximum
output
welding
current
cannot be
achieved
with
nominal
mains
supply
voltage
Welding
current
reduces
when
welding
A total loss
of power,
pilot lamp
is off, no
output, the
fan is not
operating
Possible cause
(a) The primary
supply voltage has
not been switched
on
(b) The welding
power source switch
is switched off
(c) Loose
connections
internally
Defective control
circuit
Remedy
(a) Switch on
the primary
supply voltage
(b) Switch on
the welding
power source.
(c) Have a
qualified service
engineer repair
the connection
Have a qualified
service
engineer
inspect then
repair the
welder
Poor work lead
connection to the
work piece
Ensure that
the work lead
has a reliable
electrical
connection to
the work piece
(a) Re-establish
mains supply
(b) Check
voltage and
if necessary
move machine
to alternative
supply
(c) Have a
qualified service
engineer
inspect then
repair the
welder
(a) Failure of input
voltage
(b) Possible over
voltage
(c) Internal fault
with the machine
FAULT
FINDING
Description
Welding arc
cannot be
established
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FAULT
FINDING
Description
Fault lamp
is on, no
power
output
Possible cause
(a) Machine
overheated
(b) Over current
state
(c) Internal fault
with machine
ROUTINE MAINTENANCE
Remedy
(a) Allow to
cool with fan
running
(b) Switch off
mains power
to the machine
and re start
(c) Have a
qualified service
engineer
inspect
then repair the
welder
The only routine maintenance required for the power
supply is a thorough cleaning and inspection, with the
frequency depending on the usage and the operating
environment.
Warning
Disconnect primary power at the source before
removing the cover. Wait at least two minutes before
opening the cover to allow the primary capacitors to
discharge.
To clean the unit, remove the screws securing the
outer cover, lift off the outer cover and use a vacuum
cleaner to remove any accumulated dirt and dust. The
unit should also be wiped clean, if necessary; with
solvents that are recommended for cleaning electrical
apparatus.
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8.1 Torch spares
Stock Code
CKE403
CKC403
ER26-123KBD18
control
Description
Electrode Holder with 3m Lead
Earth Lead 3m with Clamp
ERGO Tig Torch with remote
WP26AK
Tig Spares
Kit in Plastic Case
8.2 Gas equipment
Everyday Gas Regulators – 300 BAR
Single Stage
Features
Flow rate up to 96m3/h (3389 ft3/h)
•Full 300 bar capability
• Outlet pressure indicated on the bonnet
•Bottom entry design suited for top outlet
cylinder valves
Fittings
•Fitted with standard 3/8” BSP outlet
•Fitted with 5/8” BSP inlet connections
Stock Code Description
Maximum Outlet
Pressure
E700140 Argon Preset Regulator
3.0 Bar
E700141 Argon Indicator Regulator 3.0 Bar
E700113 1 Gauge Argon 30 lpm flow
E700123 2
Gauge Argon 30 lpm
flow
Flow Meters
Features
•Designed from brass bar whilst the
tube and cover are moulded from
high quality polycarbonate to ensure high impact
resistance and clarity
•Calibrated to operate at an inlet pressure
of 30PSI
•Sensitive needle valve provides easy adjustment and
the downward facing outlet connection eliminates
hose kinking.
Fittings
•Fitted with standard 3/89 BSP inlet and outlet
connections
Stock Code
706100
9.0 Statement of Warranty
Limited Warranty:
Parweld Ltd, hereafter, “Parweld” warrants its
customers that its products will be free of defects
in workmanship or material. Should any failure
to conform to this warranty appear within the
time period applicable to the Parweld products
as stated below, Parweld shall, upon notification
thereof and substantiation that the product has
been stored, installed, operated, and maintained in
accordance with Parweld’s specifications, instructions,
recommendations and recognized standard industry
practice, and not subject to misuse, repair, neglect,
alteration, or accident, correct such defects by suitable
repair or replacement, at Parweld’s sole option, of any
components or parts of the product determined by
Parweld to be defective.
ACCESSORY
8.0 Accessories
Parweld makes no other warranty, express or
implied. This warranty is exclusive and in lieu of all
others, including, but not limited to any warranty of
merchantability or fitness for any particular purpose.
Limitation of Liability:
Parweld shall not under any circumstances be liable for
special, indirect or consequential damages, such as, but
not limited to, lost profits and business interruption.
The remedies of the purchaser set forth herein are
exclusive and the liability of Parweld with respect to
any contract, or anything done in connection therewith
such as the performance or breach thereof, or from the
manufacture, sale, delivery, resale, or use of any goods
covered by or furnished by Parweld whether arising
out of contract, negligence, strict tort, or under any
warranty, or otherwise, shall not, except as expressly
provided herein, exceed the price of the goods upon
which such liability is based. No employee, agent, or
representative of Parweld is authorized to change this
warranty in any way or grant any other warranty.
Purchaser’s rights under this warranty are void if
replacement parts or accessories are used which in
Parweld’s sole judgement may impair the safety or
performance of any Parweld product.
Purchaser’s rights under this warranty are void if the
product is sold to purchaser by non-authorized persons.
The warranty is effective for the time stated below
beginning on the date that the authorized Distributor
delivers the products to the purchaser. Notwithstanding
the foregoing, in no event shall the warranty period
extend more than the time stated plus one year
from the date Parweld delivered the product to the
authorized distributor.
Description
Flow Meter Mixed Gas 15 lpm
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