Weldability Sif Sifweld Evolution TS320ACDC User manual

Operation Manual
www.sifweld.com
Peters House
The Orbital Centre
Icknield Way
Letchworth Garden City
Hertfordshire
SG6 1ET
Tel. [phone]
Approved
TIG MMA
TSXE3T320AC
Sifweld Evolution TS320ACDC

2
DECLARATION OF CONFORMITY
The Low voltage Directive 2006/95/EC of 12 December 2006, entering into force 16 January 2007
The EMC Directive 2004/108/EC, entering into force 20 July 2007
The RoSH Directive 2011/65/EC, entering into force 2 January 2013
Type of Equipment
Welding power source for TIG/TAG, MMA welding
Brand name or trade mark
SifWeld® Evolution
Type designation etc.
TS320ACDC
Manufacturer or his authorised representative established within the EEA
Name, address, telephone no, fax no
Weldability Sif
Peters House, The Orbital Centre
Icknield Way, Letchworth
Hertfordshire, SG6 1ET
United Kindom
Phone: [phone] Fax: [phone]
The following harmonised standard in force with the EEA has been used in the design:
EN60974-1- Arc welding equipment- Part 1: Welding power sources
EN60974-10 Arc welding equipment - Part 10: Electromagnetic Compatibility (EMC) requirements
Additional information: restrictive use, Class A equipment, intended for use in locations other than residential
By signing this document, the undersigned declares as manufacturer, or the manufacturer’s authorised
representative established within the EEA, that the equipment in question complies with the safety
requirements stated above.
WEEE Directive & Product Disposal
At the end of its serviceable life, this product should not be treated as household
or general waste. It should be handed over to the applicable collection point for
the recycling of electrical and electronic equipment, or returned to the supplier for
disposal.
Place and Date
Letchworth, UK
01-04-2015
Position
Quality Manager
Weldability Sif
Signiture
Keith Mullan

3
Safety Guidelines
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 user’s 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 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 protec-
tive clothing, gloves, head and eye protection. Insulate yourself from work and ground using dry insulat-
ing 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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 main-
tenance in accordance with the manufacturer’s 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 under-
stand the Material Safety Data Sheets (MSDS’s) and the manufacturer’s instructions for metals, consum-
able, 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. 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 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.

4
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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.
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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.

5
LF Declaration
Consult the data plate on the equipment for the power supply requirements. Due to the elevated
absorbency of the primary current from the power supply network, high power systems a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
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.
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 following signs and explanations are to remind the user of the potential
risks involved and the dangers of misuse or mistreatment of the welding
machine.
!
RUNNING PARTS MAY BE DANGEROUS!
Keep away from running components,
including the fan.
BE AWARE OF SPARKS AND SPATTER
Wear protective clothing, such as leather
gloves, Flame retardant overalls, boots and
eyewear.
DO NOT TOUCH THERMAL COMPONENTS!
Thermal components may cause severe burns
when in contact with unprotected skin.
ELECTRIC SHOCKS CAN KILL!
Never touch electrical parts. Keep the
equipment in good condition, replace
damaged parts, undertake regular
maintenance according to the instructions.

6
1. Preface 7
1.1 General 7
1.2 Introduction 8
1.3 Technical Specications 9
1.4 Overview of Machine 10
2. Control Panels 11
2.1 MMA Display 12
2.2 HF/Lift TIG Display 13
2.3 Pulse TIG Display 14
2.4 TIG SPOT Display 15
2.5 JOB Programme 15
2.6 2T & 4T Mode 16
3. Installation 18
3.1 Switch Torch control 21
3.2 Wireless Foot Pedal & Wireless Remote Control 22
3.3 Pedal Switch Control 23
4. Operation 24
5. Troubleshooting 25
6. Maintenance 26
7. Warranty 27
Contents

7
1. Preface
Congratulations on choosing your SifWeld Evolution TS320ACDC welding machine.
Used correctly, SifWeld products can signicantly increase the productivity of your welding, and provide
years of economical service. This operating manual contains important information on the use,
maintenance and safety of your SifWeld product. Please read the manual carefully before using the
equipment for the rst time. For your own safety and that of your working environment, pay particular
attention to the safety instructions in the manual.
For more information on SifWeld products, consult an authorised SifWeld dealer, or visit the SifWeld web
site at www.sifweld.com. The specications presented in this manual are subject to change without prior
notice.
Important notes
Items in the manual that require particular attention in order to minimise damage and personal harm
are indicated with the ’NOTE!’ notation. Read these sections carefully and follow their instructions.
Disclaimer
While every eort has been made to ensure that the information contained in this guide is accurate and
complete, no liability can be accepted for any errors or omissions. We reserve the right to change the
specication of the product described at any time without prior notice. Do not copy, record, reproduce
or transmit the contents of this guide without prior permission.
1.1 General

8
The advanced SIFWELD EVOLUTION AEROTECH range of AC/DC TIG machines have features normally only
available on high end Aerospace specic TIG welding machines, including: Four Power levels of HF Ignition
Strength. Fully adjustable Cleaning and Welding Current Levels on both the Positive and Negative parts of
the AC Square Wave Cycle.
A professional, microprocessor-controlled inverter welding power source for AC TIG, DC TIG & MMA
applications. The use of IGBT technology providing a compact and lightweight machine that is feature
rich including the advanced Aerotech features, High Speed Pulse and the complete range fully adjustable
parameters normally expected on a professional TIG welding machine.
Full digital control with large colour LCD for showing and changing all welding parameters.
Features
• High duty cycle
• Spot / repeat high speed / pulse function
• Wired or wireless foot pedal and wireless remote control panel available
• Programmable job memory.
• Water cooled and air cooled packages including trolley.
1.2 Introduction

9
DC
85 85
DC
27.7
530 x 240 x 445
Duty cycle (40oC, 10mins)
Cooling
Net weight (Kg)
Dimensions (mm)
AC
Up slope/Down slope (S)
Pre/Post Flow (S)
Welding current range (A)
Power factor
Max input power (KW)
Max input current (A)
1.3 Technical Specications
SifWeld Evolution TS320ACDC
Power source 3~400V±10%, 50/60Hz
Max no load voltage (V)
Pulse Frequency (HZ)
Pulse Width Range (%)
Eciency (%)
0.7
19.3
73.9
0.5~999
5~95
80
TIG
25.4 23.9
13.4 17.512.8
10~320
0.1~2.0/ 0.0~10.0
Circuit breaker
Protection class
D32A
IP21S
AF
AC
MMA
18.4
16.6
73.7
0~10
60% 320A
90
100% 250A

10
INSTALLATION & OPERATION
1
§3 Installation & Operation
§3.1 Layout for Front and Rear panel
§3.1.1 Layout for welder
1 Negative output: The welder’s negative polarity output.
2 Shield gas connector: Is connected to the gas input pipe of torch.
3 Aero socket: Is connected to torch switch control wire.
4 Positive output: The welder’s positive polarity output.
5 Water box connector: Is connected to the water box.
6 Shield gas input joint: To connect one head of the gas hose while the other head is
connected to argon gas cylinder.
7 Power source switch: Switch to “ON”, the welder is turned on, while switch to
“OFF”, the welder is turned off.
8 Power source input: To connect power source.
1.4 Overview of Machine
Front View
Power Source Front Panel Layout
1. Negative output
2. Shield gas connector
3. Control socket
4. Positive output
Rear View
5. Water cooler connector
6. Shield gas input joint
7. Power source switch
8. Power source input
Water Cooler
1. Intake: From here, water or
coolant, antifreeze, etc. can be
injected into tank.
2. Water outlet for TIG (blue).
3. Backwater inlet for TIG (red).
4. The water cooling control
connector.
5. Water outlet for MIG (blue).
6. Backwater inlet for MIG (red).
INSTALLATION & OPERATION
1
§3 Installation & Operation
§3.1 Layout for Front and Rear panel
§3.1.1 Layout for welder
1 Negative output: The welder’s negative polarity output.
2 Shield gas connector: Is connected to the gas input pipe of torch.
3 Aero socket: Is connected to torch switch control wire.
4 Positive output: The welder’s positive polarity output.
5 Water box connector: Is connected to the water box.
6 Shield gas input joint: To connect one head of the gas hose while the other head is
connected to argon gas cylinder.
7 Power source switch: Switch to “ON”, the welder is turned on, while switch to
“OFF”, the welder is turned off.
8 Power source input: To connect power source.
INSTALLATION & OPERATION
1
§3.1.2 Layout for water cooling
1. Intake: From here, water or coolant, antifreeze, etc. can be injected into tank.
2. Water outlet for TIG (blue).
3. Backwater inlet for TIG (red).
4. The water cooling control connector.
5. Water outlet for MIG (blue).
6. Backwater inlet for MIG (red).
Further Controls Explained
Outlet (2) and inlet (3) for TIG
The two nozzles on the same side of the intake (1) are used for TIG operation and can
be connected to the nozzles on TIG welding torch. Blue corresponds to the outlet: cold
water is delivered from the tank; red corresponds to the backwater inlet: hot water is
flowed into the tank for cooling.
Note: Blue outlet and red backwater inlet must not be wrong!
Control connector (4)
Water tank control connector is used for inserting the connecting line. And connection
line is used to connect the water tank with wire feeder or water tank with welding
machine. It supplies power to the water tank through the connection line and receives
control and detection signals in time.

11
2. Control Panels
INSTALLATION & OPERATION
1
Outlet (5) and inlet (6) for MIG
The two nozzles on the same side of Control connector (4) are used for MIG operation
and can be connected to the nozzles on the wire feeder. Blue corresponds to the outlet:
cold water is delivered from the tank; red corresponds to the backwater inlet: hot water is
flowed into the tank for cooling.
Note: Blue outlet and red backwater inlet must not be wrong!
§3.2 Layout for Control panel
§3.2.1 Control panel
1. Welding mode key: Press it to select MMA/ HF TIG/ Lift TIG welding mode.
2. Output waveform key.*
3. Trigger mode selecting key: Press it to select 2T or 4T trigger mode.
4. Welding function key: Press it to select the opening or closing of Pulse mode and
Spot welding mode.
5. JOB key: Press it for 3s to open JOB program and press it for 1s to save parameters
into JOB number.
6. Function A key.*
7. Parameter A key: Press it to select Hot start or Balance. If the key is not pressed
within 3s, the selection will be automatically removed.
8. Screen: It will show all welding parameters, such as welding voltage, welding current
1. Welding mode key
Press it to select MMA/ HF TIG/ Lift TIG welding mode.
2. Output waveform key.
3. Trigger mode selecting key
Press it to select 2T or 4T trigger mode.
4. Welding function key
Press it to select the opening or closing of Pulse mode and Spot welding mode.
5. JOB key
Press it for 3s to open JOB program and press it for 1s to save parameters into JOB number.
6. Function A key
7. Parameter A key
Press it to select Hot start or Balance. If the key is not pressed within 3s, the selection will be
automatically removed.
8. Screen
It will show all welding parameters, such as welding voltage, welding current and other parameters set.
9. Parameter B key
Press it to select Arc Force or AC Frequency. If the key is not pressed within 3s, the selection will be
automatically removed.
10. Cooling mode selecting key
Press it to select Air cooling or Water cooling.
11. Function B key
12. Parameters select/adjust knob

12
2.1 MMA Display
INSTALLATION & OPERATION
1
§3.2.2 MMA display introduction
1. Welding mode key: Press it to enter MMA welding mode.
2. Out waveform key: Press it to select DC output or AC Square wave output.
3. Parameter A key: Press it to select Hot start. Setting range: 0 - 10.
4. Parameter B key: Press it to select Arc force. Setting range: 0 - 10.
5. Parameter adjust knob: Rotate it to adjust welding current and value of Hot start
and Arc force.
6. Current display: It displays welding current during welding operation, otherwise
show current selected.
7. Welding voltage display: It displays welding voltage.
1. Welding mode key
Press it to enter MMA welding mode.
2. Out waveform key
Press it to select DC output or AC Square wave output.
3. Parameter A key
Press it to select Hot start. Setting range: 0 - 10.
4. Parameter B key
Press it to select Arc force. Setting range: 0 - 10.
5. Parameter adjust knob
Rotate it to adjust welding current and value of Hot start and Arc force.
6. Current display
It displays welding current during welding operation, otherwise show current selected.
7. Welding voltage display
It displays welding voltage.

13
INSTALLATION & OPERATION
1
§3.2.3 HF/LIFT TIG display introduction
1. Welding mode key: Press it to enter HF TIG or Lift TIG welding mode.
2. Output waveform key: Press it to select DC output or AC wave output.
3. Trigger mode key: Press it to select 2T or 4T trigger mode.
4. Welding function key: Press it to select No Pulse/ Pulse/ Spot welding function.
(Here is no Spot function in Lift TIG welding mode.)
5. Parameter A key: Press it to select AC Balance. Setting range: -5 to +5.
6. Parameter B key: Press it to select AC Frequency. Setting range: 50 - 250Hz.
2.2 HF/LIFT TIG Display
1. Welding mode key: Press it to enter HF TIG or Lift TIG welding mode.
2. Output waveform key: Press it to select DC output or AC wave output.
3. Trigger mode key: Press it to select 2T or 4T trigger mode.
4. Welding function key: Press it to select No Pulse/ Pulse/ Spot welding function. (Here is no Spot
function in Lift TIG welding mode.)
5. Parameter A key: Press it to select AC Balance. Setting range: -5 to +5, positive and negative
power adjudst

14
INSTALLATION & OPERATION
1
7. Function A key: Press it to select Pre-gas time, Start arc current and Up slope time.
8. Function A key: Press it to select Down slope time, End arc current and Post-gas
time.
9. Parameters select/adjust knob: Press it to select welding current and other
parameters. Rotate it to adjust parameters’ value.
10. Current display: It displays welding current during welding operation, otherwise
show current selected.
11. Welding voltage display.
12. Cooling mode selecting key: Press it to select Water cooling.
§3.2.4 TIG Pulse display introduction
1. Peak current: It is 5% to 100% of the main welding current.
2. Base current: It is 5% to 100% of the main welding current, but less than Peak
current.
3. Pulse frequency: 0.5 - 999Hz.
4. Pulse width: 5 - 95%.
6. Parameter B key: Press it to select AC Frequency. Setting range: 50 - 250Hz.
7. Function A key: Press it to select Pre-gas time, Start arc current and Up slope time.
8. Function A key: Press it to select Down slope time, End arc current and Post-gas time, HF start power
adjust
9. Parameters select/adjust knob: Press it to select welding current and other parameters. Rotate it to
adjust parameters’value.
10. Current display: It displays welding current during welding operation, otherwise show current
selected.
11. Welding voltage display.
12. Cooling mode selecting key: Press it to select Water cooling.
2.3 Pulse TIG Display
1. Peak current
It is 5% to 100% of the main welding current.
2. Base current
It is 5% to 100% of the main welding current, but less than Peak current.
3. Pulse frequency
0.5 - 999Hz.
4. Pulse width
5 - 95%.

15
2.4 TIG Spot Display
INSTALLATION & OPERATION
1
§3.2.5 TIG Spot display introduction
1. Current display: 10-400A (320A for BT TIG 321).
2. Ton display: 0.1 - 1.0s.
3. Toff display: off - 10.0s.
§3.2.6 JOB Program introduction
1. Welding mode display: Here are selected welding states.
2. Parameters display: Here are all selected parameters values.
3. JOB number: A total 1-10 JOB numbers can store or call the selected parameters
by JOB key.
4. Load/ Delete display: Press Function A/B key to call/delete parameters setting for
the selected JOB number.
1. Current display: 10-400A (320A for BT TIG 321).
2. Ton display: 0.1 - 1.0s.
3. To display: o - 10.0s.
2.5 JOB Programme
INSTALLATION & OPERATION
1
§3.2.5 TIG Spot display introduction
1. Current display: 10-400A (320A for BT TIG 321).
2. Ton display: 0.1 - 1.0s.
3. Toff display: off - 10.0s.
§3.2.6 JOB Program introduction
1. Welding mode display: Here are selected welding states.
2. Parameters display: Here are all selected parameters values.
3. JOB number: A total 1-10 JOB numbers can store or call the selected parameters
by JOB key.
4. Load/ Delete display: Press Function A/B key to call/delete parameters setting for
the selected JOB number.
1. Welding mode display: Here are selected welding states.
2. Parameters display: Here are all selected parameters values.
3. JOB number: A total 1-10 JOB numbers can store or call the selected parameters by JOB key.
4. Load/ Delete display: Press Function A/B key to call/delete parameters setting for the selected
JOB number.

16
2T MODE
The trigger is pulled and held on to activate the welding circuit, when the trigger is released, the
welding circuit stops. This function without the adjustment of start current and crater current is suitable
for the Re-tack welding, transient welding, thin plate welding and so on.
INSTALLATION & OPERATION
1
2T Mode
The trigger is pulled and held on to activate the welding circuit, when the trigger is
released, the welding circuit stops.
This function without the adjustment of start current and crater current is suitable for the
Re-tack welding、transient welding、thin plate welding and so on.
Introduction:
(1) 0: Press the gun switch and hold it. Electromagnetic gas valve is turned on. The
shielding gas stars to flow.
(2) 0～t1: Pre-gas time (0.1~2.0s)
(3) t1～t2: Arc is ignited and the output current rises to the setting welding current (Iwor
Ib) from the min welding current.
(4) t2～t3: During the whole welding process, the gun switch is pressed and held without
releasing.
Note: Select the pulsed output, the base current and welding current will be outputted
alternately; otherwise, output the setting value of welding current;
(5) t3: Release the gun switch, the welding current will drop in accordance with the
selected down-slope time.
(6) t3～t4: The current drops to the minimum welding current from the setting current (Iw
or Ib), and then arc is turned off.
(7) t4～t5: Post-gas time, after the arc is turned off. You can adjust it (0.0~10s) through
turnning the knob on the front panel.
(8) t5: Electromagnetic gas valve turned off, the shield gas stops to flow, and welding is
finished.
Introduction
1. 0: Press the gun switch and hold it. Electromagnetic gas valve is turned on. The shielding gas stars to
ow.
2. 0~t1: Pre-gas time (0.1~2.0s)
3. t1~t2: Arc is ignited and the output current rises to the setting welding current (Iw or Ib) from the
min welding current.
4. t2~t3: During the whole welding process, the gun switch is pressed and held without releasing.
Note: Select the pulsed output, the base current and welding current will be outputted alternately;
otherwise, output the setting value of welding current.
5. t3: Release the gun switch, the welding current will drop in accordance with the selected down-slope
time.
6. t3~t4: The current drops to the minimum welding current from the setting current (Iw or Ib), and
then arc is turned o.
7. t4~t5: Post-gas time, after the arc is turned o. You can adjust it (0.0~10s) through turnning the knob
on the front panel.
8. t5: Electromagnetic gas valve turned o, the shield gas stops to ow, and welding is nished.
2.6 2T & 4T Mode

17
4T MODE
This is known as ’latching’mode. The trigger is pulled once and released to activate the welding circuit,
pulled and released again to stops the welding circuit. This function is useful to longer welds as the
trigger is not required to be held on continuously. TIG series of welding machines also has more current
control options that can be used in 4T mode.
The start current and crater current can be pre-set. This function can compensate the possible crater
that appears at the beginning and end of the welding. Thus, 4T is suitable for the welding of medium
thickness plates.
PANEL FUNCTIONS & DESCRIPTIONS
1
welding circuit, pulled and released again to stops the welding circuit. This function is
useful to longer welds as the trigger is not required to be held on continuously. TIG series
of welding machines also has more current control options that can be used in 4T mode.
The start current and crater current can be pre-set. This function can compensate the
possible crater that appears at the beginning and end of the welding. Thus, 4T is suitable
for the welding of medium thickness plates.
Introduction:
(1) 0: Press and hold the gun switch, Electromagnetic gas valve is turned on. The
shielding gas stars to flow;
(2) 0～t1: Pre-gas time (0.1~2.0S);
(3) t1～t2: Arc is ignited at t1 and then output the setting value of start current;
(4) t2: Loosen the gun switch, the output current slopes up from the start current;
(5) t2～t3: The output current rises to the setting value (Iwor Ib), the upslope time can be
adjusted;
(6) t3～t4: Welding process. During this period, the gun switch is loosen;
Note: Select the pulsed output, the base current and welding current will be outputted
alternately; otherwise, output the setting value of welding current;
(7) t4: Press the torch switch again, the welding current will drop in accordance with the
selected down-slope time.
(8) t4～t5: The output current slopes down to the crater current. The downslope time
can be adjusted;
(9) t5～t6: The crater current time;
(10) t6: Loosen the gun switch, stop arc and keep on argon flowing;
(11) t6～t7: Post-gas time can be set by the post-gas time adjustment knob on the front
Introduction
1. 0: Press and hold the gun switch, Electromagnetic gas valve is turned on. The shielding gas stars to ow.
2. 0~t1: Pre-gas time (0.1~2.0S);
3. t1~t2: Arc is ignited at t1 and then output the setting value of start current;
4. t2: Loosen the gun switch, the output current slopes up from the start current;
5. t2~t3: The output current rises to the setting value (Iw or Ib), the upslope time can be adjusted;
6. t3~t4: Welding process. During this period, the gun switch is loosen;
Note: Select the pulsed output, the base current and welding current will be outputted alternately;
otherwise, output the setting value of welding current;
7. t4: Press the torch switch again, the welding current will drop in accordance with the selected down-
slope time.
8. t4~t5: The output current slopes down to the crater current. The downslope time can be adjusted;
9. t5~t6: The crater current time;
10. t6: Loosen the gun switch, stop arc and keep on argon owing;
11. t6~t7: Post-gas time can be set by the post-gas time adjustment knob on the front

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3. 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 rating 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
In general when using manual arc welding electrodes the electrode holder is connected to 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.

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MMA Welding
Two sockets are available on this welding machine. For MMA welding the electrode holder is shown be
connected to the positive socket, while the earth lead (work piece) is connected to the negative socket,
this is known as DCEP. However various electrodes require a dierent polarity for optimum results and
careful attention should be paid to the polarity, refer to the electrode manufacturer’s information for the
correct polarity.
DCEP: Electrode connected to“+” output socket.
DCEN: Electrode connected to “-”output socket.
MMA (DC): Choosing the connection of DCEN or DCEP according to the dierent electrodes. Please refer
to the electrode manual.
MMA (AC): No requirements for polarity connection..
INSTALLATION & OPERATION
1
panel (0.0～10S);
(12) t7: Electromagnetic valve is closed and stop argon flowing. Welding is finished.
§3.3 Installation & Operation for MMA welding
§3.3.1 Set up installation for MMA Welding
Connection of Output Cables
Two sockets are available on this welding machine. For MMA welding the electrode
holder is shown be connected to the positive socket, while the earth lead (work piece) is
connected to the negative socket, this is known as DCEP. However various electrodes
require a different polarity for optimum results and careful attention should be paid to the
polarity, refer to the electrode manufacturer's information for the correct polarity.
DCEP: Electrode connected to “+” output socket.
DCEN: Electrode connected to “-” output socket.
MMA (DC): Choosing the connection of DCEN or DCEP according to the different
electrodes. Please refer to the electrode manual.
MMA (AC): No requirements for polarity connection.
(1) Connect the earth lead to “-”, tighten clockwise;
(2) Connect the earth clamp to the work piece. Contact with the work piece must be firm
1. Connect the earth lead to “-”, tighten clockwise
2. Connect the earth clamp to the work piece. Contact with the work piece must be rm
3. Connect the electrode lead to “+”, tighten clockwise
4. Each machine is equipped with a power cable should be based on the input voltage welding power
cable connected to the appropriate position, not to pick the wrong voltage
5. With the corresponding input power supply terminal or socket good contact and prevent oxidation
6. With a multi meter measure the input voltage is within the uctuation range
7. The power ground is well grounded.

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TIG Welding
1. Insert the earth cable plug into the positive socket on the front of the machine and tighten it.
2. Plug the welding torch into the negative socket on the front panel, and tighten it.
3. Connect the gas line of TIG Gun to outlet gas connector on the front of the machine.
4. Connect the control cable of torch switch to 12 pin socket on the front of the machine.
5. Connect the water inlet and outlet pipe of TIG Gun to inlet and outlet water connector on the front
of the water box.
6. Connect the control cable of water box with the aero socket on the rear panel of welding machine.
7. Connect the gas regulator to the Gas Cylinder and connect the gas line to the Gas Regulator. Check
for Leaks!
8. Connect the gas line to the machine inlet gas connector via the quick push lock connector located
on the rear panel. Check for Leaks!
NOTE: Air cooling mode without cooling device, and the water pipe is not needed for the air cooling
mode.
9. Connect the power cable of welding machine with the output switch in electric box on site.
Turn on the power switch.
10. Carefully open the valve of the gas cylinder, set the required gas ow rate.
11. With a multi meter measure the input voltage is within the uctuation range.
12. The power ground is well grounded.
INSTALLATION & OPERATION
2
§3.4 Installation & Operation for TIG welding
§3.4.1 Set up installation for TIG Welding
(1) Insert the earth cable plug into the positive socket on the front of the machine and
tighten it.
(2) Plug the welding torch into the negative socket on the front panel, and tighten it.
(3) Connect the gas line of TIG Gun to outlet gas connector on the front of the machine.
(4) Connect the control cable of torch switch to 12 pin socket on the front of the machine.
(5) Connect the water inlet and outlet pipe of TIG Gun to inlet and outlet water connector
on the front of the water box.
(6) Connect the control cable of water box with the aero socket on the rear panel of
welding machine.