Preface; Introduction; Product Introduction; Operation Safety - Kemppi MasterTig MLS 2500 Operation Instructions Manual

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1. PREFACE

1.1. INTRODUCTION

Congratulations on having purchased a KEMPPI product. Properly installed and used Kemppi pro-
ducts 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 2500, 2503, 3500 and 3503 MLS™ is a MMA welding machine designed for indust-
rial 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 2500, 2503, 3500 and 3503 MLS™ 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, Mastercool 12) 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. OPERATION SAFETY

Please study these Operation safety instructions and respect them when installing, operating and servi-
cing 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.
©
Master(tig) 2500, 2503, 3500, 3503 MLS™/ 0311 – 3
COPYRIGHT KEMPPI OY

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