Sweiss SKYTIG 2045 ACDC User manual

SKYTIG 2045 AC/DC – USER MANUAL/MANUAL DE USUARIO
IMPORTANT: Read this Owner’s Manual Completely before attempting to use this equipment.
Save this manual and keep it handy for quick reference. Pay particular attention to the safety
instructions we have provided for your protection. Contact your distributor if you do not fully
understand this manual.
USER MANUAL
MANUAL DE USUARIO
SKYTIG 2045 AC/DC
Every SWEISS machine comes with 3 years of limited warranty. However, it is
necessary to take the machine to a free technical checkup every year (the
cost of labor is free, the spare parts will require payment), at any of the
SWEISS AUTHORIZED service centers, at the end of which the warranty will
be extended to the next year. The technical checkup must get done between
11 to 13 months from the purchase, and then 11 to 13 months from the rst
checkup. Not taking the machine to the annual checkup will void the
warranty.
Accessories or consumable parts like ground clamp, electrode holder and
torches ARE NOT COVERED BY WARRANTY, unless there is a manufacturing
defect.

USER MANUAL
User Manual for AC/DC pulsed TIG welder
IMPORTANTE: Lea el manual de usuario completamente antes de utilizar el equipo. Mantenga
este manual al alcance para futuras referencias. Ponga especial atencion a las intrucciones de
seguridad para la proteccion de su integridad sica. Contacte a su distribuidor local si tiene
alguna duda acerca de la operación de cualquiera de los equipos SWEISS .
IMPORTANT: Read this Owner’s Manual Completely before attempting to use this equipment.
Save this manual and keep it handy for quick reference. Pay particular attention to the safety
instructions we have provided for your protection. Contact your distributor if you do not fully
understand this manual.
SKYTIG 2045 AC/DC

CONTENTS
CONTENTS
§1 SAFETY----------------------------------------------------------------------------------------------------------- 1
§1.1 SIGNAL EXPLANATION -------------------------------------------------------------------------------------------------1
§1.2 ARC WELDING DAMAGE ----------------------------------------------------------------------------------------------1
§1.3 THE KNOWLEDGE OF ELECTRIC AND MAGNETIC FIELDS -------------------------------------------------------------5
§2 SUMMARY------------------------------------------------------------------------------------------------------- 6
§2.1 BRIEF INTRODUCTION -------------------------------------------------------------------------------------------------6
§2.2 MODULE EXPLANATION -----------------------------------------------------------------------------------------------7
§2.3 WORKING PRINCIPLE --------------------------------------------------------------------------------------------------8
§2.4 VOLT-AMPERE CHARACTERISTIC --------------------------------------------------------------------------------------8
§3 INSTALLATION AND ADJUSTMENT ------------------------------------------------------------------------ 9
§3.1 PARAMETERS ----------------------------------------------------------------------------------------------------------9
§3.2 DUTY CYCLE &OVER HEAT ------------------------------------------------------------------------------------------ 11
§3.3 MOVEMENT AND PLACEMENT--------------------------------------------------------------------------------------- 11
§3.4 POWER SUPPLY INPUT CONNECTION -------------------------------------------------------------------------------- 11
§3.5 POLARITY CONNECTION（MMA）------------------------------------------------------------------------------- 12
§3.6 ASSEMBLING THE EQUIPMENT (TIG)-------------------------------------------------------------------------------- 13
§4 OPERATION ----------------------------------------------------------------------------------------------------14
§4.1 LAYOUT FOR THE PANEL --------------------------------------------------------------------------------------------- 14
§4.2 CONTROL PANEL ----------------------------------------------------------------------------------------------------- 15
§4.3 REMOTE CONTROL --------------------------------------------------------------------------------------------------- 19
§4.3.1 Pedal switch control ---------------------------------------------------------------------------------------- 19
§4.3.2 Remote box control----------------------------------------------------------------------------------------- 20
§4.3.3 Gun switch control current -------------------------------------------------------------------------------- 20
§4.4 ARGON ARC WELDING OPERATION--------------------------------------------------------------------------------- 21
§4.4.1 TIG welding
（
4T operation
）
----------------------------------------------------------------- ------ 21
§4.4.2 TIG welding (2T operation) -------------------------------------------------------------------------------- 23
§4.5 WELDING PARAMETERS --------------------------------------------------------------------------------------------- 25
§4.5.1 Joint forms in TIG/MMA------------------------------------------------------------------------------------ 25
§4.5.2 The explanation of welding quality---------------------------------------------------------------------- 25
§4.5.3 TIG Parameters Matching --------------------------------------------------------------------------------- 25
§4.6 OPERATION ENVIRONMENT ----------------------------------------------------------------------------------------- 28
§4.7 OPERATION NOTICES ------------------------------------------------------------------------------------------------ 29
§5 MAINTENANCE & TROUBLESHOOTING ------------------------------------------------------------------29
§5.1 MAINTENANCE------------------------------------------------------------------------------------------------------- 29
§5.2 TROUBLESHOOTING ------------------------------------------------------------------------------------------------- 30
§5.3 ELECTRICAL PRINCIPLE DRAWING ----------------------------------------------------------------------------------- 34

SECURITY
4
SKYTIG 2045 AC/DC – USER MANUAL/MANUAL DE USUARIO
These symbols mean Warning! Caution! Moving parts, electric shock danger or hot objects can seriously
harm the operator and people near him. The welding machine operation is safe if all necessary security
measures are taken.
1. Security
1.1. Description and explanation of signs
1.2. ELECTRIC ARC HAZZARDS
Electric shock can kill!
• Never touch electrical parts.
• Use dry clothes and gloves with no holes for electrical isolation.
• Isolate yourself from work zone and ground with dry insulation. Make sure the isolation is large enough to
avoid physical contact with work area and ground.
• Take special measures when the machine is used on closed places, work at height or high humidity.
• Always disconnect the electrical supply before installation and initial adjustment of the machine.
• Make sure the machine is well installed and correctly place and ground the object or metal being welded.
• Bellow, you will nd the symbology and explanation of the possible injuries and operator, or the people
around, may sustain if the machine is not operated correctly. Always remember the risks generated because of
bad operation of the machine.
• The cleaning, installation, operation, maintenance and repairing procedures of welding machines should be
performed only by qualied individuals.
• All non-related to the welding work personnel should stay away from the area where welding is being
performed, especially children.
• After the machine is turned o, inspect and maintain the machine as explain in section §5. Internal
components may store energy even after the machine is turned o.

5
SECURITY
SKYTIG 2045 AC/DC – USER MANUAL/MANUAL DE USUARIO
Fumes and gases can be dangerous
• The electrode holder and the work clamp are electrically active when the machine is on. Do no touch these
parts without adequate isolation or with wet clothing. Wear dry gloves without holes to isolate your hands.
• In semiautomatic or automatic wire welding, the electrode, electrode reel, welding head, nozzle or
semiautomatic welding gun also conduct electricity.
• Always make sure the work clamp is well connected to the material being welded. The connection must be
done as close as possible to the area being welded.
•Maintain the work clamp, electrode holder, welding cables and welding machine in good condition. Replace
damaged parts.
•Never dip the electrode in water for cooling.
•Never simultaneously touch electrically active parts of electrode holders or work clamps connected to two
welders.
•When working above oor level, use a safety belt to protect yourself from an accidental fall.
Welding may produce fumes and gases hazardous to health. Avoid breathing these fumes and gases. When
welding, keep your head out of the fume. Use enough ventilation and/or exhaust at the arc to keep fumes and
gases away from the breathing zone. When welding with electrodes which require special ventilation such as
stainless or hard facing or on lead or cadmium plated steel and other metals or coatings which produce
highly toxic fumes, keep exposure as low as possible and below threshold limit using mechanical ventilation.
In conned spaces or in some circumstances, outdoors, a respirator with adequate lters may be required.
Additional precautions are also required when welding on galvanized steel.
• Avoid welding near locations with chlorinated hydrocarbon vapors coming from degreasing and cleaning
operations. The heat and electricity of the arc can react with solvent vapors and form phosgene, a highly toxic
gas, and other irritating products.
• The gases used for arc welding can displace air and cause asphyxia, intoxication or death. Always use
enough ventilation, especially in conned areas, to make sure breathing air is safe.
• Read and understand the manufacturer’s instructions for this equipment and the consumables to be used,
including the material in the safety data sheet and follow your employer’s safety practices.

6
SECURITY
SKYTIG 2045 AC/DC – USER MANUAL/MANUAL DE USUARIO
Arc rays can burn
Moving parts can be dangerous
Welding sparks can cause re or explosion.
• Use a shield with an adequate lter to protect your eyes from sparks and the rays of the arc when welding or
for observing the welding arc.
• Use appropriate clothing made from ame-resistant material to protect your skin and that of your helping
personnel from the welding arc rays.
• Protect the nearby personnel with protective non-ammable elements. The nearby personnel must be
warned about not to watch the arc directly nor expose themselves to the arc.
• Keep all security equipment, guards, covers and devices in position and in good state.
• Keep hands, hair, clothing and tools away from fans and all other moving parts when starting, operating or
repairing equipment.
• Don’t put the hands near the fan.
•Remove re hazards from the welding area. If this is not possible, cover them to prevent the welding sparks
from starting a re. Remember that welding sparks can easily go through small openings to adjacent areas.
Avoid welding near hydraulic lines. Keep a re extinguisher available.
•To avoid hazardous situations in places where compressed gases are used additional precautions should be
taken.
•While there is no welding operation being done, make sure no part of the circuit is in contact with the
working piece or the ground. Accidental contact can cause overheating or re hazard.
•Do not heat, cut or weld tanks, drums or containers until measures have been taken to ensure that
ammable gases and toxic vapors had been eliminated, they can cause explosions.
•Vent hollow castings or containers before heating, cutting or welding them. They may explode.
•Sparks and spatter are thrown from the welding arc. Wear oil free protective clothing such as leather gloves,
heavy shirts and pants, protected shoes and head protection. Wear ear plugs when welding in conned
places.
•Connect the work cable as close as possible to the welding work area. Work cables connected to the building
structure can increase the possibility of the welding current passing through cables and alternate circuits.
NEVER add fuel near re, a welding arc, or hot splatter or metal.

SECURITY
SKYTIG 2045 AC/DC – USER MANUAL/MANUAL DE USUARIO
1.3. The knowledge of Electric and Magnetic Fields
7
• Use only compressed gas cylinders containing the correct shielding gas for the process used and properly
operating regulators designed for the gas and pressure used. All hoses, ttings, etc. should be suitable for the
application and maintained in good condition.
• Always keep cylinders in an upright position securely chained to an undercarriage or xed support.
• Cylinders should be located:
• Away from areas where they may be struck or subjected to physical damage.
• A safe distance from arc welding or cutting operations and any other source of heat, sparks, or ame.
• 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.
• Valve protection caps should always be in place and hand tight except when the cylinder is in use or
connected for use.
Electric current owing through a conductor produces electromagnetic elds, the eect of these elds on the
human body is debate topic all over the world. Although there is no clear evidence of health eects caused
by exposure to electric and magnetic elds (EM elds), the real eects on human body are now not known
and there are ongoing investigations on the matter, so you should keep exposure to these elds as low as
possible.
To minimize exposure to EM elds you should do as follows:
• Route the electrode and work cables together. Secure them with isolated tape if possible.
• Both cables should be as far as possible from the operator
• Never coil the welding cables around your body.
• Make sure the machine and the power supply cable are away from the operator, if it is possible.
• Connect the work cable to the work piece as close as possible to the area being welded.
• EM elds may interfere with some pacemakers. People with pacemakers should stay away from the welding
work area.
Gas cylinders may explode if damaged

SUMMARY
SKYTIG 2045 AC/DC – USER MANUAL/MANUAL DE USUARIO
8
SKYTIG 2045 ACDC welding machine adopts the latest Pulse Width Modulation (PWM) technology and IGBT
modules. They use an electronic control system that allow replacing the old, big and heavy transformer for a
small and more ecient one, hence they are portable, small and have low energy consumption.
The parameters of the front panel of the SKYTIG 2045 ACDC can be adjusted continuously and
uninterruptedly, such as starting current, crater arc current, welding current, base current, working ratio, rise
time, fall time , pre-gas, post-gas, pulse frequency, AC frequency, balance, Hot start, arc force and arc length,
etc... When welding, the equipment takes high frequency and high voltage to turn on the arc and to ensure
the proper ratio when starting the operation.
SKYTIG 2045 ACDC Characteristics
• The MCU control system responds immediately to any change.
• High frequency and high voltage for arc ignition and ensure proper ratio when arc ignition, reverse polarity
ignition ensures good ignition behavior in TIG-AC welding.
• Prevent AC arc break with special means, even if arc break occurs, HF will keep arc stable.
• Welding current control pedal.
• TIG / DC operation, If the tungsten electrode touches the workpiece when welding, the current will short
circuit to protect the tungsten.
• Smart protection: over voltage, over current, overheat, when the mentioned problems occur, the alarm lamp
on the front panel will light and the output current will cut o. This auto protects and prolongs the life of the
equipment.
• Dual Purpose: AC TIG / MMA Inverter and DC TIG / MMA Inverter, excellent performance in Al alloy, carbon
steel, stainless steel, titanium.
Depending on the choice of the dierent functions of the front panel, six forms of welding can be performed:
• DC • MMA
• DC • TIG
• DC • Pulse TIG
• AC • MMA
• AC • TIG
• AC • Pulse TIG
2. SUMMARY
2.1. Brief Introduction

SUMMARY
SKYTIG 2045 AC/DC – USER MANUAL/MANUAL DE USUARIO
8
1. For DC MMA, the polarity connection can be chosen according to dierent electrodes, please refer to §3.5;
2. For AC MMA, the magnetic ux caused by the invariable polarity of the DC can be avoided;
3. For DC TIG, DCEP is normally used (part connected to positive polarity, while torch is connected to negative
polarity). This connection has many characteristics, such as stable welding arc, low tungsten electrode loss,
more welding current, narrow and deep welding;
4. For AC TIG (rectangle wave), the arc is more stable than Sine AC TIG. At the same time, it can not only get
maximum penetration and least loss of tungsten pole, but also get better separating eect.
5. The Pulsed DC TIG has the following characteristics: 1) Pulsed heating. The metal in the molten pool has a
short time in the state of high temperature and cooling rapidly, so that the possibility of producing the hot
crack of materials with thermal sensitivity is reduced. 2) The workpiece receives little heat. The arc energy is
focused. Suitable for thin sheet welding. 3) Control the heat input properly and the size of the molten pool.
The penetration depth is controlled. Suitable for single-sided welding and integration of two-sided and
all-position welding in a pipe. 4) The high frequency arc can manufacture the metal for the micro lite fabric,
eliminate the blowhole and improve the mechanical performance of the joint. 5) The high frequency arc is
suitable for high welding speed and to improve productivity.
The ACDC series SKYTIG 2045 welding machine is suitable for welding plates made of stainless steel, carbon
steel, alloy steel, copper, titanium, etc., also applicable for the installation of pipes, Bicycles, crafts and
common fabrications.
The working principle of SKYTIG 2045 ACDC welding machines is shown in the gure below. The single-phase
220V AC working frequency is rectied into DC (approximately 312V), then converted to medium-frequency
AC (approximately 20KHz) thanks to the inverter device (IGBT modules), after reducing the voltage by
step-down transformer (the main transformer ) and rectifying by means of a medium frequency rectier (Fast
recovery diodes), DC or AC is delivered, selecting through the output IGBT module. The circuit adopts current
feedback control technology to ensure stable current output. Meanwhile, the parameter of the welding
current can be adjusted continuously and uninterruptedly to satisfy the requirements of the welding job.
2.2. Working Principle
MMA—Manual Metal Arc welding
PWM—Pulse-Width Modulation
IGBT—Insulation Gate Bipolar Transistor
TIG—Tungsten Inert Gas welding

SUMMARY
SKYTIG 2045 AC/DC – USER MANUAL/MANUAL DE USUARIO
Three phase,AC Rectier PFC
DC DC
220V 50Hz Inverter Inverter
AC Transformer AC Rectier
Current feedback
control
DC Hall device AC or DCAC or DC
Control signal
2.3. Volt-Ampere Characteristic
SKYTIG 3545 ACDC welding machine has an excellent volt-ampere characteristic, whose graph is shown as
the following gure. The relation between the conventional rated loading voltage U2 and the conventional
welding current I2 is as follows:
When I ≤600A，U＝10＋0.04 I（V）； When I＞600A，U＝34（V）.
9
Volt-ampere characteristic
Working
point
0 600 I（A）
10
34
67
U（V）
The relation between the
conventional loading
voltage and welding current

INSTALLATION AND ADJUSTMENT
SKYTIG 2045 AC/DC – USER MANUAL/MANUAL DE USUARIO
3. Installation & Adjustment
3.1 Parameters
10
Model
Parameters SKYTIG 2045 ACDC
Voltage Input 1~220±10%，50Hz
Nominal Input Current（A）23.6（TIG）28.2（MMA）
Nominal Power Input（KW）5.2（TIG）6.2（MMA）
Power Factor 0.99
Open Circuit Voltage(V) 64
Start Current Range（A）
TIG MMA
AC DC AC DC
HF LIFT
5～Welding
current — —
10～
Welding
current
30～
Welding
current
Welding Current Range (A) 10～200 30～200 5～200 10～170 5～170
Crater Arc Current Range (A) 10～200 30～200 5～200 10～170 5～170
Fall Time Range (S) 0～10
Pre-Gas Time Range (S) 0.1~1
Post-Gas Time Range (S) 0.1～10
Wave Ratio（%）15～50
Eciency
Duty Cycle（40℃，10 min）
AC DC
45% 200A 45% 200A
60% 90A 60% 110A
100% 70A 100% 90A
Protection Class IP23S
Insulation Class F
Machine size（L×W×H）（mm）470×240×380
Weight (Kg) 20

INSTALLATION AND ADJUSTMENT
SKYTIG 2045 AC/DC – USER MANUAL/MANUAL DE USUARIO
3.2. Duty cycle & Over heat
3.3 Movement and Location
3.4 Power supply input connection
I（A）
0
100％
25%
100 200
XThe relation between duty cycle and
welding current for DM-1600P/2000P
10
The letter “X” stands for duty cycle, which is dened as the
proportion of the time that a machine can work continuously
within a certain time (10 minutes). The rated duty cycle means
the proportion of the time that a machine can work
continuously within 10 minutes when it outputs the rated
welding current.
The relation between the duty cycle “X” and the output welding
current “I” is shown as the right gure.
If the welder is over-heat, the IGBT over-heat protection unit
inside it will output an instruction to cut output welding
current, and brighten the over-heat pilot lamp on the front
panel. At this time, the machine should be relaxed for 15
minutes to cool the fan. When operating the machine again, the
welding output current or the duty cycle should be reduced.
• Please be careful with the welding equipment when you make movements, do not do it when inclined.
• You can move it around the top of the handle. Position the equipment very well when moving it to the
desired place. When the equipment reaches its destination, adjust it to prevent it from slipping accidentally.
• When using a forklift, the arm length must be long enough to reach the outside to ensure a safe lift.
• Moving the equipment can cause potential danger, so please make sure the equipment is in a safe position
before using it.
The SKYTIG 2045 ACDC welding equipment power supply is 220V.
When the power supply voltage is above or below safe working voltage, there is over and low voltage
protection inside the equipment, the alarm light will come on, and at the same time the current output will
be cut o. If the voltage of the power supply continues above the safe working voltage, the life of the
equipment will be shortened, to avoid this use the following measures:
• Change the point of connection of the machine to the electrical grid. Try connecting the equipment to the
stable supply voltage of the electrical distribution board;
• Install a voltage stabilizing device.

INSTALLATION AND ADJUSTMENT
SKYTIG 2045 AC/DC – USER MANUAL/MANUAL DE USUARIO
11
3.5. Polarity connection (MMA)
MMA (DC): Choose the DCEN or DCEP connection according to the dierent electrodes. See the electrode
manual.
MMA (AC): There are no requirements for polarity connection.
Welding holder
DC Electrode Negative
(DCEN)
SKYTIG
Electrode
Workpiece
Welding holder
DC Electrode Positive
(DCEP)
SKYTIG
Electrode
Workpiece

INSTALLATION AND ADJUSTMENT
SKYTIG 2045 AC/DC – USER MANUAL/MANUAL DE USUARIO
3.6 Assembling the equipment (TIG)
Ar
workpiece
DECEN
torch
cyclinder Gas hose Shield gas
input joint
Shield gas
connector
Aero
socket
Return current
cable
Control cable of
torch switch
pipe
Negative
output
Positive
output
Welding cable
SKYTIGSKYTIG
12
• The workpiece is connected to the positive socket of the welding equipment, and the welding torch is
connected to the negative socket, which is called DC Electrode Negative connection; Otherwise, it is called
DC Electrode Positive connection. Generally, it is normally operated in DC Electrode Negative for TIG welding
mode.
• The torch switch control cable consists of 2 wires, the 3 wires pedal control and the 14 holes connector.
• Consumable parts for TIG torch, such as tungsten electrode, tip, gas nozzle, electrode shield (short / long),
can be ordered via mail or phone considering the accessory codes.
• When SKYTIG 2045 ACDC welding equipment operates in HF ignition mode, the ignition spark can cause
interference to nearby equipment. Be sure to take special safety precautions or protective measures for this..

INSTALLATION AND ADJUSTMENT
SKYTIG 2045 AC/DC – USER MANUAL/MANUAL DE USUARIO
13
4. Operation
4.1. Layout for front panel
1. Positive output: Positive polarity output of the welder.
2. 14 pin tig torch socket: Connects to the control cable of the torch switch (it has 14
holes, cable 8 and cable 9 is connected to the control
cable of the torch switch).
3. Negative output: Negative polarity output of the welder.
4. Shield Gas Connector: Connected to the torch's gas inlet tube.
5. Power supply switch: When Switching to "ON", the equipment turns on, when
Switching to "OFF", the equipment will turn o.
6. Power supply input cable: Connection for the power supply.
7. Shielding Gas Inlet Connection: Connect one end of the gas hose and connect the other
end to an argon gas cylinder.
8. Fan: Used to cool the components and internal parts of the
welding equipment.
ON
OFF
1234
56
7
8
A
A
V %
Hz
S
MMA
TIG TIG
2T
4T
DC DC
AC AC
SWEISSWELD.COM
Sch w e i s s t echn i k
P
SKYTIG 3545 AC/DC
3 220V

INSTALLATION AND ADJUSTMENT
SKYTIG 2045 AC/DC – USER MANUAL/MANUAL DE USUARIO
14
4.2. Control panel
(6) Adjustment Knob.
(1) AC/DC Toggle Switch
(2) 2T/4T Mode Selection Switch
(3) Gas Test Indicator
(10) Power/Alarm indicator
(12) Welding current display
(4) HF Activation Key
(5) Pulse key
(6) Parameter selection button 1
(11) Welding voltage/other parameter display
7) Parameter selection button 2
9) MMA Parameter Selection Switch

INSTALLATION AND ADJUSTMENT
SKYTIG 2045 AC/DC – USER MANUAL/MANUAL DE USUARIO
15
Overview
The main feature of the control panel is the logical way in which the controls are arranged. All the main
parameters necessary for daily work can be:
• Selected with the keys
• With adjustment selector
• Shown on screen during the welding process.
The following illustration shows an overview of the main settings needed for everyday work, using the
SKYTIG 2045 ACDC control panel, for an example you will nd a detailed description of these settings in the
next section.
(3) Gas Test Indicator
Lights up when the gas test key is pressed, after the gas ows for 15s. Press the key again to stop the gas ow
before the 15s are over.
(4) HF Activation Key
The LED lights up when the HF_ is activated by pressing the HF key
(5) Pulse Key
The LED lights up when the Pulse Key is pressed and pulsed mode is activated.
(6) y (7) Parameter selection buttons.
In TIG mode use these to switch between the TIG curve parameters.
(8) Adjustment Knob
Use This to adjust the selected parameter (the indicator LED will be light up on the selected parameter).
(1) AC / DC Toggle Switch
AC welding
DC welding
(2) 2T/4T Mode Selection Switch
2-Touch Mode
4-Touch Mode
Iw
Tpr Is Tup
Iw
Dcy
Fp
Iw Tdown
Ic Tpo
Ib

OPERATION CONTROL AND CONNECTORS
SKYTIG 2045 AC/DC – USER MANUAL/MANUAL DE USUARIO
16
Available parameters where 2T and 4T mode have been selected:
ow time
Unit S
Setting range 0.1—1
Factory setting 0.3
Is Starting current (only with 4T)
Unit A
Setting range 5—100%of main current Iw (DC) 10—100%of main current Iw (AC-HF)
30—100%of main current Iw (AC-LIFT)
Factory setting 5
Tup Upslope time
Unit S
Setting range 0—10
Factory setting 0
Iw Welding current
Unit A
SKYTIG 3545 ACDC 5—350 (TIG-DC) 10—350 (TIG-AC-HF) 30—350 (TIG-AC-LIFT)
5—350 (MMA-DC) 10—350 (MMA-AC)
Ib Base current
Unit A
SKYTIG 3545 ACDC 5—350 (DC) 10—350 (AC-HF) 10—350 (AC-LIFT)
Important! Only selectable when “pulse key” has been pressed.
Suggestion!
Dcy Ratio of pulse duration to base current duration
Unit %
Setting range 5—100
Factory setting 5
Important! Only selectable when “pulse key” has been pressed.
Fp Pulse frequency
Unit Hz
Setting range 0.5—200
Factory setting 0.5
Important! Only selectable when “pulse key” has been pressed.

OPERATION CONTROL AND CONNECTORS
SKYTIG 2045 AC/DC – USER MANUAL/MANUAL DE USUARIO
17
Tdown Downslope time
Unit S
Balance adjustment is mainly used to set the adjustment of eliminating metal-oxide (such as
Aluminium, Magnesium and its alloy) while AC output.
Unit %
Setting range 15—50
Factory setting 15
(9) Rod electrode(MMA) welding key
Parameter Setting range
Arc force 0-10
Hot start 0-10
Arc length 0-10
(10) Power/Alarm indicator
Setting range 0—10
Factory setting 0
Ic Crater arc current (only with 4T)
Unit S
Setting range 5—100% of main current Iw (DC) 10—100% of main current Iw (AC-HF)
30—100% of main current Iw (AC-LIFT)
Factory setting 5
Tpo ow time
Unit S
Setting range 0.1—10
Factory setting 3
AC frequency (only with TIG-AC)
Unit Hz
Setting range 50—250 (Iw<50A)
50—200 (50A≤Iw<100A)
50—150 (100A≤Iw<150A)
50—100 (150A≤Iw<350A)
Balance (only with TIG-AC)
Power On Indicator
Protection indicator: Light up if
there is overheating, overvoltage
or overcurrent (usually because
of low voltage input). The display
will show Err.

OPERATION CONTROL AND CONNECTORS
SKYTIG 2045 AC/DC – USER MANUAL/MANUAL DE USUARIO
18
(11) Welding voltage/other parameter display
• Shows welding voltage and other parameters.
• Before starting the welding process, this display will show the adjusted values of Tpr, Tr, Dcy, Fp, Tf and Tpo
after they are adjusted. After 3 seconds the display will show the OCV.
• When the welding process is started this display will show the welding voltage.
(12) Welding current display
• Shows the adjusted current or the welding current.
• Before starting the welding process, this display will show the adjusted values of Is, Iw, Ib e Ic.
• When the welding process is started this display will show the welding current.
• The estate of the machine on the TIG welding curve will be indicated in the front panel with a LED.
4.3. Layout for front panel
1-3 CURRENT SET: Set in factory, don’t change them. Modifying these may result on machine damage.
4 FACTORY TEST: Error depuration mode, for technical use only. For normal use of the machine leave OFF.
5 FOOT_REMOTE BOX SELECT: Must be ON to use foot pedal.