Kemppi MLS 2500 - Manual (Page 3)

Master MLs™ 500, 503, 3500, 3503, Mastertig MLs™ 3000, 3003, 4000, 4003 / 0649– 3 © keMppi oy
1. PREFACE
1.1. INTROduCTION
Congratulations on having purchased a KEMPPI product. Properly installed and used Kemppi
products should prove to be productive machines requiring a small amount of regular maintenance.
This manual is to give you a good understanding of the equipment and its safe operation. It also
contains maintenance information and technical specifications. Read this manual completely from
front to back before installing, operating or maintaining the equipment for the first time. For further
information on Kemppi products please contact us or your nearest Kemppi distributor.
The specifications and designs presented in this manual are subject to change without prior
notice.
In this document, for danger to life or injury the following symbol is used:
Read the warnings carefully and follow the instructions. Please also study the Operation safety
instructions and respect them when installing, operating and servicing the machine.
1.2. PROduCT INTROduCTION
Kemppi Master MLS™ 2500, 2503, 3500 and 3503 is a MMA welding machine designed for
industrial use and for welding all kinds of covered electrodes, including difficult-to-weld types
such as cellulose electrodes. The equipment consists of power source, welding cables and function
panel.
Kemppi Mastertig MLS™ 3000, 3003, 4000 and 4003 is a TIG welding system especially designed
for industrial use and for welding e.g. stainless steel materials. The equipment consists of a power
source, function panel, TIG welding torch, ground cable and an optional cooling unit. The cooling
unit Mastercool 10 is used in water-cooled TIG welding.
The power source is a multifunctional machine for demanding professional use for MMA, TIG
and pulsed TIG welding with direct current. The power source is controlled with IGBT transistors
with a frequency of approximately 20 kHz, and the operational functions with a microprocessor.
The welding torch can be either water-cooled or gas-cooled.
1.3. SAFE OPERATION
Please study these Operation safety instructions and respect them when installing, operating and
servicing the machine.
Welding arc and spatters
Welding arc hurts unprotected eyes. Be careful also with reflecting arc flash. Welding arc and
spatter burn unprotected skin. Use safety gloves and protective clothing.
Danger for fire or explosion
Pay attention to fire safety regulations. Remove flammable or explosive materials from welding
place. Always have sufficient fire-fighting equipment wherever you are welding. Be prepared for
hazards in special welding jobs, e.g. for danger of fire or explosion when welding container-type
work pieces. Note! Fire can break out from sparks even several hours after the welding work has
been finished!
Mains voltage
Never take welding machine inside a work piece (e.g. container or truck). Do not place welding
machine on a wet surface. Always check cables before operating the machine. Change damaged
cables without delay. Damaged cables may cause an injury or start a fire. Connection cable must
not be crushed, it must not touch sharp edges or hot work pieces.