Lincoln Electric OERLIKON CITOSTEEL 255C User manual

IM3100
10/2020
REV02
CITOSTEEL 255C
CITOSTEEL 255C PRO
CITOSTEEL 325C
CITOSTEEL 325C PRO
OPERATOR’S MANUAL
MANUALE OPERATIVO
BEDIENUNGSANLEITUNG
MANUAL DE INSTRUCCIONES
MANUEL D'UTILISATION
BRUKSANVISNING
GEBRUIKSAANWIJZING
BRUKSANVISNING
INSTRUKCJA OBSŁUGI
KÄYTTÖOHJE
MANUAL DE INSTRUÇÕES
ИНСТРУКЦИЯ ПО ЭКСПЛУАТАЦИИ
NÁVOD K POUŽITÍ
MANUAL DE UTILIZARE
Lincoln Electric Bester Sp. z o.o.
ul. Jana III Sobieskiego 19A, 58-263 Bielawa, Poland

IM3100
10/2020
REV02
CITOSTEEL 255C
CITOSTEEL 255C PRO
CITOSTEEL 325C
CITOSTEEL 325C PRO
OPERATOR’S MANUAL
ENGLISH
Lincoln Electric Bester Sp. z o.o.
ul. Jana III Sobieskiego 19A, 58-263 Bielawa, Poland

English I English
12/05
THANKS! For having choosen 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:
…………………………………………………………………... ……………………….…………………………………………..
ENGLISH INDEX
Technical Specifications...................................................................................................................................................... 1
ECO design information....................................................................................................................................................... 3
Electromagnetic Compatibility (EMC).................................................................................................................................. 5
Safety.................................................................................................................................................................................. 6
Introduction ......................................................................................................................................................................... 8
Installation and Operator Instructions.................................................................................................................................. 8
WEEE ............................................................................................................................................................................... 38
Spare Parts ....................................................................................................................................................................... 38
REACh .............................................................................................................................................................................. 38
Authorized Service Shops Location .................................................................................................................................. 38
Electrical Schematic.......................................................................................................................................................... 38
Accessories....................................................................................................................................................................... 39

English 1 English
Technical Specifications
NAME INDEX
CITOSTEEL 255C W000404105
CITOSTEEL 255C PRO W000404107
CITOSTEEL 325C W000404106
CITOSTEEL 325C PRO W000404108
INPUT
Input Voltage U1EMC Class Frequency
255C
400V ± 10%3-phase A 50/60Hz
255C PRO
325C
325C PRO
Input Power at Rated
Cycle Input Amperes I1max PF
255C 10,3 kVA @ 60% Duty Cycle
(40°C) 14,7A 0,85
255C PRO
325C 13,6 kVA @ 40% Duty Cycle
(40°C) 19,6A 0,90
325C PRO
RATED OUTPUT
255C
255C PRO
Open Circuit
Voltage
Duty Cycle 40°C
(based on a 10 min.
period)
Output Current Output Voltage
GMAW
49Vdc
60% 250A 26,5Vdc
100% 195A 23,8Vdc
FCAW 60% 250A 26,5Vdc
100% 195A 23,8Vdc
SMAW 60% 250A 30Vdc
100% 195A 27,8Vdc
325C
325C PRO
GMAW
49Vdc
40% 320A 30Vdc
100% 195A 23,8Vdc
FCAW 40% 320A 30Vdc
100% 195A 23,8Vdc
SMAW 40% 320A 32,8Vdc
100% 195A 27,8Vdc
WELDING CURRENT RANGE
GMAW FCAW SMAW
255C 10A÷250A 10A÷250A 20A÷250A
255C PRO 10A÷250A 10A÷250A 20A÷250A
325C 10A÷320A 10A÷320A 20A÷320A
325C PRO 10A÷320A 10A÷320A 20A÷320A
RECOMMENDED INPUT CABLE AND FUSE SIZES
Fuse Type gR or Circuit Breaker Type Z Power Lead
255C 16A, 400V AC 4 Conductor, 2,5mm2
255C PRO 16A, 400V AC 4 Conductor, 2,5mm2
325C 20A, 400V AC 4 Conductor, 2,5mm2
325C PRO 20A, 400V AC 4 Conductor, 2,5mm2

English 2 English
DIMENSION
Weight Height Width Length
255C
66 kg 870 mm 540 mm 900 mm
255C PRO
25C
325C PRO
Protection Rating Operating Humidity (t=20°C)
255C
IP23 ≤90 %
255C PRO
325C
325C PRO
Operating Temperature Storage Temperature
255C
from -10°C to +40°C from -25°C to 55°C
255C PRO
325C
325C PRO

English 3 English
ECO design information
The equipment has been designed in order to be compliant with the Directive 2009/125/EC and the Regulation
2019/1784/EU.
Efficiency and idle power consumption:
Index Name Efficiency when max power consumption
/ Idle power consumption Equivalent model
W000404105 CITOSTEEL 255C 87,2% / 27W No equivalent model
W000404107 CITOSTEEL 255C PRO 87,2% / 27W No equivalent model
W000404106 CITOSTEEL 325C 87,2% / 27W No equivalent model
W000404108 CITOSTEEL 325C PRO 87,2% / 27W No equivalent model
Idle state occurs under the condition specified in below table
IDLE STATE
Condition Presence
MIG mode X
TIG mode
STICK mode
After 30 minutes of non-working
Fan off X
The value of efficiency and consumption in idle state have been measured by method and conditions defined in the product
standard EN 60974-1:20XX
Manufacturer’s name, product name, code number, product number, serial number and date of production can be read from
rating plate.
XXXXXXXXXX
Code: XXXXX XXXXXX-X
S/N: P1YYMMXXXXX
12
34
5
P1 YY MM XXXXX
5A5A 5B 5D5C
XXXXXXX
Where:
1- Manufacturer name and address
2- Product name
3- Code number
4- Product number
5- Serial number
5A- country of production
5B- year of production
5C- month of production
5D- progressive number different for each machine

English 4 English
Typical gas usage for MIG/MAG equipment:
Material type
Wire
diameter
[mm]
DC electrode positive Wire Feeding
[m/min] Shielding Gas Gas flow [l/min]
Current
[A]
Voltage
[V]
Carbon, low
alloy steel 0,9 ÷ 1,1 95 ÷ 200 18 ÷ 22 3,5 – 6,5 Ar 75%, CO225% 12
Aluminium 0,8 ÷ 1,6 90 ÷ 240 18 ÷ 26 5,5 – 9,5 Argon 14 ÷ 19
Austenic
stainless steel 0,8 ÷ 1,6 85 ÷ 300 21 ÷ 28 3 - 7 Ar 98%, O22% / He 90%, Ar 7,5% CO22,5% 14 ÷ 16
Copper alloy 0,9 ÷ 1,6 175 ÷ 385 23 ÷ 26 6 - 11 Argon 12 ÷ 16
Magnesium 1,6 ÷ 2,4 70 ÷ 335 16 ÷ 26 4 - 15 Argon 24 ÷ 28
Tig Process:
In TIG welding process, gas usage depends on cross-sectional area of the nozzle. For commonly used torches:
Helium: 14-24 l/min
Argon: 7-16 l/min
Notice: Excessive flow rates causes turbulence in the gas stream which may aspirate atmospheric contamination into the
welding pool.
Notice: A cross wind or draft moving can disrupt the shielding gas coverage, in the interest of saving of protective gas use
screen to block air flow.
End of life
At end of life of product, it has to be disposal for recycling in accordance with Directive 2012/19/EU (WEEE), information
about the dismantling of product and Critical Raw Material (CRM) present in the product, can be found at
https://www.lincolnelectric.com/en-gb/support/Pages/operator-manuals-eu.aspx

English 5 English
Electromagnetic Compatibility (EMC)
11/04
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.
WARNING
Provided that the public low voltage system impedance at the point of common coupling is lower than:
56,4 mΩfor the CITOSTEEL 255C
56,4 mΩfor the CITOSTEEL 255C PRO
56,4 mΩfor the CITOSTEEL 325C
56,4 mΩfor the CITOSTEEL 325C PRO
This equipment is compliant with IEC 61000-3-11 and IEC 61000-3-12 and can be connected to public lowvoltage
systems. It is the responsibility of the installer or user of the equipment to ensure, by consultation with the distribution
network operator if necessary, that the system impedance complies with the impedance restrictions.
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 may be potential difficulties in ensuring electromagnetic compatibility in those
locations, due to conducted as well as radiated disturbances.
WARNING
While a high electromagnetic field occurs, a welding current can fluctuate.

English 6 English
Safety
01/11
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.
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 Equipments (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.