Lincoln Electric INVERTEC 165S User manual

800036912
02/2018
REV00
INVERTEC®165S
OPERATOR’S MANUAL
ENGLISH
Lincoln Electric Bester Sp. z o.o.
ul. Jana III Sobieskiego 19A, 58-263 Bielawa, Poland

www.lincolnelectric.eu
Declaration of conformity
Lincoln Electric Bester Sp. z o.o.
Declares that the welding machine:
K14171-1 INVERTEC®165S
conforms to the following directives:
2014/35/EU , 2014/30/EU, 2011/65/EU
and has been designed in compliance with the
following standards:
EN 60974-1:2012; EN 60974-10:2014
01.08.2018
Piotr Spytek
Operations Director
Lincoln Electric Bester Sp. z o.o., ul. Jana III Sobieskiego 19A, 58-263 Bielawa, Poland

English English
THANKS! For having chosen the QUALITY of the Lincoln Electric products.
Please Examine Package and Equipment for Damage. Claims for material damaged in shipment must be notified
immediately to the dealer.
For future reference record in the table below your equipment identification information. Model Name, Code & Serial
Number can be found on the machine rating plate.
Model Name:
………………………………………………………………………………………………………………………………………….
Code & Serial Number:
………………………………………………………………….. …………………………………………………………………..
Date & Where Purchased
…………………………………………………………………. …………………………………………………………………..
Safety
WARNING
This equipment must be used by qualified personnel. Be sure that all installation, operation, maintenance and repair
procedures are performed only by qualified person. Read and understand this manual before operating this equipment.
Failure to follow the instructions in this manual could cause serious personal injury, loss of life, or damage to this
equipment. Read and understand the following explanations of the warning symbols. Lincoln Electric is not responsible
for damages caused by improper installation, improper care or abnormal operation.
WARNING: This symbol indicates that instructions must be followed to avoid serious personal injury,
loss of life, or damage to this equipment. Protect yourself and others from possible serious injury or
death.
READ AND UNDERSTAND INSTRUCTIONS: Read and understand this manual before operating this
equipment. Arc welding can be hazardous. Failure to follow the instructions in this manual could cause
serious personal injury, loss of life, or damage to this equipment.
ELECTRIC SHOCK CAN KILL: Welding equipment generates high voltages. Do not touch the
electrode, work clamp, or connected work pieces when this equipment is on. Insulate yourself from the
electrode, work clamp and connected work pieces.
ELECTRICALLY POWERED EQUIPMENT: Turn off input power using the disconnect switch at the
fuse box before working on this equipment. Ground this equipment in accordance with local electrical
regulations.
ELECTRICALLY POWERED EQUIPMENT: Regularly inspect the input, electrode, and work clamp
cables. If any insulation damage exists replace the cable immediately. Do not place the electrode holder
directly on the welding table or any other surface in contact with the work clamp to avoid the risk of
accidental arc ignition.
ELECTRIC AND MAGNETIC FIELDS MAY BE DANGEROUS: Electric current flowing through any
conductor creates electric and magnetic fields (EMF). EMF fields may interfere with some pacemakers
and welders having a pacemaker shall consult their physician before operating this equipment.

English English
CE COMPLIANCE: This equipment complies with the European Community Directives.
ARTIFICIAL OPTICAL RADIATION: According with the requirements in 2006/25/EC Directive and EN
12198 Standard, the equipment is a category 2. It makes mandatory the adoption of Personal Protective
Equipment (PPE) having filter with a protection degree up to a maximum of 15, as required by EN169
Standard.
FUMES AND GASES CAN BE DANGEROUS: Welding may produce fumes and gases hazardous to
health. Avoid breathing these fumes and gases. To avoid these dangers the operator must use enough
ventilation or exhaust to keep fumes and gases away from the breathing zone.
ARC RAYS CAN BURN: Use a shield with the proper filter and cover plates to protect your eyes from
sparks and the rays of the arc when welding or observing. Use suitable clothing made from durable
flame-resistant material to protect you skin and that of your helpers. Protect other nearby personnel with
suitable, non-flammable screening and warn them not to watch the arc nor expose themselves to the
arc.
WELDING SPARKS CAN CAUSE FIRE OR EXPLOSION: Remove fire hazards from the welding area
and have a fire extinguisher readily available. Welding sparks and hot materials from the welding
process can easily go through small cracks and openings to adjacent areas. Do not weld on any tanks,
drums, containers, or material until the proper steps have been taken to insure that no flammable or
toxic vapors will be present. Never operate this equipment when flammable gases, vapors or liquid
combustibles are present.
WELDED MATERIALS CAN BURN: Welding generates a large amount of heat. Hot surfaces and
materials in work area can cause serious burns. Use gloves and pliers when touching or moving
materials in the work area.
CYLINDER MAY EXPLODE IF DAMAGED: 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. Always keep cylinders in an upright position securely chained to a fixed support. Do not move or
transport gas cylinders with the protection cap removed. Do not allow the electrode, electrode holder,
work clamp or any other electrically live part to touch a gas cylinder. Gas cylinders must be located
away from areas where they may be subjected to physical damage or the welding process including
sparks and heat sources.
SAFETY MARK: This equipment is suitable for supplying power for welding operations carried out in an
environment with increased hazard of electric shock.
WARNING: Welding/cutting equipment must only be used for the purpose for which it is intended. It
must never be used for any other purpose, such as battery charging, thawing out frozen water pipes,
heating premises by the addition of heating elements, etc.
WARNING
Stability of the equipment is guaranteed only for an incline of maximum 10°.
The manufacturer reserves the right to make changes and/or improvements in design without upgrade at the same time
the operator’s manual.

English English
Electromagnetic Compatibility (EMC)
This machine has been designed in accordance with all relevant directives and standards. However, it may still generate
electromagnetic disturbances that can affect other systems like telecommunications (telephone, radio, and television) or
other safety systems. These disturbances can cause safety problems in the affected systems. Read and understand this
section to eliminate or reduce the amount of electromagnetic disturbance generated by this machine.
This machine has been designed to operate in an industrial area. The operator must install and operate
this equipment as described in this manual. If any electromagnetic disturbances are detected the operator
must put in place corrective actions to eliminate these disturbances with, if necessary, assistance from
Lincoln Electric. This equipment does not comply with IEC 61000-3-12. If it is connected to a public low-
voltage system, it is responsibility of the installer or user of the equipment to ensure, by consultation with the distribution
network operator if necessary, that the equipment may be connected.
Before installing the machine, the operator must check the work area for any devices that may malfunction because of
electromagnetic disturbances. Consider the following.
Input and output cables, control cables, and telephone cables that are in or adjacent to the work area and the
machine.
Radio and/or television transmitters and receivers. Computers or computer controlled equipment.
Safety and control equipment for industrial processes. Equipment for calibration and measurement.
Personal medical devices like pacemakers and hearing aids.
Check the electromagnetic immunity for equipment operating in or near the work area. The operator must be sure
that all equipment in the area is compatible. This may require additional protection measures.
The dimensions of the work area to consider will depend on the construction of the area and other activities that are
taking place.
Consider the following guidelines to reduce electromagnetic emissions from the machine.
Connect the machine to the input supply according to this manual. If disturbances occur if may be necessary to take
additional precautions such as filtering the input supply.
The output cables should be kept as short as possible and should be positioned together. If possible connect the
work piece to ground in order to reduce the electromagnetic emissions. The operator must check that connecting the
work piece to ground does not cause problems or unsafe operating conditions for personnel and equipment.
Shielding of cables in the work area can reduce electromagnetic emissions. This may be necessary for special
applications. WARNING
The Class A equipment is not intended for use in residential locations where the electrical power is provided by the public
low-voltage supply system. There can be potential difficulties in ensuring electromagnetic compatibility in those locations,
due to conducted as well as radio-frequency disturbances.
WEEE
English
Do not dispose of electrical equipment together with normal waste!
In observance of European Directive 2012/19/EU on Waste Electrical and Electronic Equipment
(WEEE) and its implementation in accordance with national law, electrical equipment that has reached
the end of its life must be collected separately and returned to an environmentally compatible recycling
facility. As the owner of the equipment, you should get information on approved collection systems
from our local representative.
By applying this European Directive you will protect the environment and human health!

1 EN
CONTENTS
EN
EN
1.0 TECHNICAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1 DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 TECHNICAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3 DUTY CYCLE AND OVERHEATING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.4 VOLT - AMPERE CURVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.0 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1 CONNECTING THE POWER SOURCE TO THE MAINS ELECTRICITY SUPPLY. . . . . . . . . . . . . . 2
2.2 POWER SOURCE POSITIONING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.3 HANDLING AND TRANSPORTING THE POWER SOURCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.4 SELECTING A LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.5 CONNECTION AND PREPARATION OF EQUIPMENT FOR GAS TUNGSTEN
ARC WELDING (TIG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.0 CONTROLS, POSITION AND FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.1 FRONT PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4.0 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SPARE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I - II
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IV

2 EN
TECHNICAL DESCRIPTION
ENEN
1.0 TECHNICAL DESCRIPTION
1.1 DESCRIPTION
T e system consists of a modern direct current generator for t e
welding of metals, developed via application of t e inverter. T is
special tec nology allows for t e construction of compact lig t
weig t generators wit ig performance. l’ts adjust ability, ef-
feciency and energy consumption make it an excellent work tool
suitable for coated electrode and GTAW (TIG) welding.
1.2 TECHNICAL SPECIFICATIONS
DATA PLATE
1.3 DUTY CYCLE AND OVERHEATING
Duty cycle is t e percentage of 10 minutes at 40°C ambient tem-
perature t at t e unit can weld at its rated output wit out over eat-
ing. If t e unit over eats, t e output stops and t e over
temperature lig t comes On. To correct t e situation, wait fifteen
minutes for unit to cool. Reduce amperage, voltage or duty cycle
before starting to weld again (See page III).
DO NOT EXCEED THE MAXIMUM WORK CYCLE. EXCEED-
ING THE WORK CYCLE SPECIFIED ON THE DATAPLATE
CAN DAMAGE THE POWER SOURCE AND INVALIDATE THE
WARRANTY.
1.4 VOLT - AMPERE CURVES
Volt-ampere curves s ow t e maximum voltage and amperage
output capabilities of t e welding power source. Curves of ot er
settings fall under curves s own (See page III).
2.0 INSTALLATION
IMPORTANT BEFORE CONNECTING, PREPARING OR US-
ING EQUIPMENT, READ SAFETY PRECAUTIONS.
2.1 CONNECTING THE POWER SOURCE TO THE MAINS
ELECTRICITY SUPPLY.
Serious damage to t e equipment may result if t e power source
is switc ed off during welding operations.
C eck t at t e power socket is equipped wit t e fuse indicated in
t e features label on t e power source. All power source models
are designed to compensate power supply variations. For varia-
tions of ±10%, a welding current variation of ±0.2% is created.
WARNING THIS EQUIPMENT DOES NOT COMPLY WITH IEC
61000-3-12. IF IT IS CONNECTED TO A PUBLIC LOW VOLT-
AGE SYSTEM, IT IS THE RESPONSIBILITY OF THE INSTALL-
ER OR USE R OF THE EQ UIP MENT TO E NSU RE, B Y
CONSULTATION WITH THE DISTRIBUTION NETWORK OP-
ERATOR IF NECESSARY, THAT THE EQUIPMENT MAY BE
CONNECTED.
THIS CLASS A EQUIPMENT IS NOT INTENDED FOR USE IN
RESIDENTIAL LOCATIONS WHERE THE ELECTRICAL POW-
ER IS PROVIDED BY THE PUBLIC LOW-VOLTAGE SUPPLY
SYSTEM. THERE MAY BE POTENTIAL DIFFICULTIES IN EN-
SURING ELECTROMAGNETIC COMPATIBILITY IN THOSE
LOCATIONS, DUE TO CONDUCTED AS WELL AS RADIATED
DISTURBANCES.
ON - OFF SWITCH T is switc as two positions: I
and 0.
T e welder is designed to be worked from a generator.
Before connecting t e welder to t e generator it is important to es-
tablis t at t e generator as t e following tec nical requirement:
1. t e 230V 50/60 Hz socket can supply sufficient power re-
quired for welding, see label on welder.
2. t e socket supplies undistorted voltage RMS between 180
and 280 V.
3. t e socket supplies peak voltage between 230 and 420 V.
4. t e socket supplies alternate voltage wit a frequency be-
tween 50 and 60 Hz.
IT IS ADVISABLE TO FOLLOW THE ABOVE INSTRUCTIONS
OTHERWISE THE WELDER COULD BE DAMAGED.
2.2 POWER SOURCE POSITIONING
SPECIAL INSTALLATION MAY BE REQUIRED WHERE GAS-
OLINE OR VOLATILE LIQUIDS ARE PRESENT. CONTACT
THE COMPETENT AUTHORITIES. WHEN POSITIONING
EQUIPMENT, ENSURE THAT THE FOLLOWING GUIDELINES
ARE FOLLOWED
1. T e operator must ave unobstructed access to controls and
equipment connections.
2. C eck t at t e power cable and fuse of t e socket for power
source connection is suited to current requirements of t e lat-
ter.
3. Do not position equipment in confined, closed places. Venti-
lation of t e power source is extremely important. Avoid
dusty or dirty locations, w ere dust or ot er debris could be
aspirated by t e system.
4. Equipment (including connecting leads) must not obstruct
corridors or work activities of ot er personnel.
Position t e power source securely to avoid falling or overturning.
Bear in mind t e risk of falling of equipment situated in over ead
positions.
PRIMARY
Single p ase supply 230 V
Frequency 50 Hz / 60 Hz
Effective consuption 16 A
Maximum consuption 34,4 A
Fuse 16A
SECONDARY
Open circuit voltage 85 V
Welding current 5 A ÷ 160 A
Duty cycle 20% 160 A
Duty cycle 60% 100 A
Duty cycle100% 80 A
Protection class IP 23
Insulation class H
Weig t Kg 7
Dimensions 265 x 162 x 385
European Standards EN 60974.1 / EN
60974.10
B EF OR E IN SERTI NG T H E M AI NS
PLUG, IN ORDER TO AVOID THE FAIL
OF POWER SOURCE, CHECK IF THE
M AIN S C O RR ES P O N D S TO T H E
WISHED MAIN SUPPLY.

CONTROLS, POSITION AND FUNCTIONS
3 EN
EN EN
2.3 HANDLING AND TRANSPORTING THE POWER
SOURCE
OPERATOR SAFETY WELDER’S HELMET - GLOWES -
SHOES WITH HIGH INSTEPS.
THE WELDING POWER SOURCE DO NOT WEIGHT MORE
THAN 25 KG AND CAN BE HANDLED BY THE OPERATOR.
READ WELL THE FOLLOWING PRECAUTIONS.
T e mac ine is easy to lift, transport and andle, t oug t e fol-
lowing procedures must always be observed:
1. T e operations mentioned above can be operated by t e
andle on t e power source.
2. Always disconnect t e power source and accessories from
main supply before lifting or andling operations.
3. Do not drag, pull or lift equipment by t e cables.
2.4 CONNECTION AND PREPARATION OF EQUIPMENT
FOR STICK WELDING.
TURN OFF WELDER BEFORE MAKING CONNECTIONS.
Connect all welding accessories securely to prevent power
loss. Carefully follow safety regulations described in SAFE-
TY RULES.
1. Fit t e selected electrode to t e electrode clamp.
2. Connect t e eart lead connector to t e negative (-) quick-
connection terminal (Ref. 6 - Picture 1 Page 3.) and t e eart
clamp of t e workpiece near t e welding zone.
3. Connect t e electrode clamp connector to t e positive (+)
quick-connection terminal (Ref. 5 - Picture 1 Page 3.) .
CAUTION MAKE THE ABOVE CONNECTION FOR DIRECT
POLARITY WELDING; FOR INVERSE POLARITY, INVERT
THE CONNECTION EARTH LEAD CONNECTOR TO THE
QUICK-CONNECTION POSITIVE (+) TERMINAL AND THE
ELECTRODE HOLDER CLAMP CONNECTOR TO THE NEGA-
TIVE (-) TERMINAL.
4. Adjust welding current wit ampere selector Ref. 2 - Picture
1 Page 3.) .
5. Press t e illuminated switc to turn on t e power source Ref.
1 - Picture 1 Page 3.) .
N.B. Serious damage to the equipment may result if the power
source is switched off during welding operations.
T e power source is fitted wit an anti-sticking device t at dis-
ables power if output s ort circuiting occurs or if t e electrode
sticks, allowing it to be easily detac ed from t e workpiece.
T is device enters into operation w en power is supplied to t e
generator, even during t e initial c ecking period, t erefore any
load input or s ort circuit t at occurs during t is p ase is treated
as a fault and will cause t e output power to be disabled.
2.5 CONNECTION AND PREPARATION OF EQUIPMENT
FOR GAS TUNGSTEN ARC WELDING (TIG)
TURN OFF WELDER BEFORE MAKING CONNECTIONS.
Connect welding accessories securely to avoid power loss or
leakage of dangerous gases. Carefully follow the safety reg-
ulations.
1. Fit t e required electrode and nozzle to t e electrode older
(c eck t e protrusion and state of t e electrode tip).
2. Connect t e eart lead connector to t e positive (+) quick-
connect terminal Ref. - Picture 1 Page 3.) and t e eart
clamp to t e workpiece near t e welding zone.
3. Connect t e torc lead connector to quick-connection nega-
tive (-) terminal Ref. 6 - Picture 1 Page 3.) .
4. Connect t e torc gas ose to t e gas cylinder outlet.
5. Press t e illuminated switc to turn on t e power source Ref.
1 - Picture 1 Page 3.) .
6. C eck t at t ere are no gas leaks.
7. Adjust welding current wit ampere selector Ref. 2 - Picture
1 Page 3.) .
CHECK GAS DELIVERY; TURN GAS CYLINDER KNOB TO
REGULATE FLOW .
NB: The electric welding arc is struck by lightly touching the work-
piece with the electrode (Scratch start).
CAUTION WHEN WORKING OUTDOORS OR IN WINDY CON-
DITIONS PROTECT THE FLOW OF SHIELDING GAS OR IT
MAY BE DISPERSED WITH RESULTING LACK OF PROTEC-
TION FOR THE WELD.
3.0 CONTROLS, POSITION AND FUNCTIONS
3.1 FRONT PANEL
Picture 1.
1. Connect t e eart lead to t e work piece to t e negative ter-
minal (-) (Ref. 6 - Picture 1 Page 3.)
2. Connect t e torc lead to t e positive terminal (+) (Ref. 5 -
Picture 1 Page 3.).
ENSURE THAT THESE CONNECTIONS ARE WELL TIGHT-
ENED TO AVOID POWER LOSS AND OVERHEATING.
3. Use control knob (Ref. 2 - Picture 1 Page 3.) to regulate
welding current.
4. Illuminated switc (Ref. 1 - Picture 1 Page 3.) must be ON
(lamp lig t) before welding operations can be started.
5. Illumination of t e yellow LED (Ref. 3 - Picture 1 Page 3.) on
t e front panel indicates a fault w ic prevents t e equipment
from functioning.
T e yellow LED indicates two fault types:
1. over eating caused by an excessively intense duty cycle. In
t is case, stop welding and leave t e power source switc ed
on until t e LED switc es off.
2. power supply too ig /too low.
In t is case, wait till t e LED switc es off, indicating normali-
sation of t e supply voltage and t en resume welding.
4.0 MAINTENANCE
DISCONNECT POWER BEFORE MAINTENANCE. SERVICE
MORE OFTEN DURING SEVERE CONDITIONS.
Every three (3) months, perform the operations below
1. Replace unreadable labels.
2. Clean and tig ten weld teminals.
3. Replace damaged gas ose.
4. Repair or replace cracked cables and cords.
Every six (6) months, perform the operation below
Blow out t e inside of t e unit. Increase frequency of cleaning
w en operating in dirty or dusty conditions.
1
11
1
3
33
3
2
22
2
5
55
5
6
66
6