Kemppi Minarc 150 VRD User Manual
MINARC
150 VRD
Operation instructions • english
Gebrauchsanweisung • deutsch
Gebruiksaanwijzing • nederlands
Manuel d’utilisation • français
1910160VRDE
0538
© KEMPPI OY
2 – MINARC 150 VRD / 0538
CONTENTS
1. PREFACE ..............................................................................................................3
1.1. Introduction ...................................................................................................3
1.2. Product introduction ......................................................................................3
1.3. Operation safety ............................................................................................3
2. BEFORE YOU START USING THE UNIT .............................................................4
2.1. Unpacking .....................................................................................................4
2.2. Placing the unit .............................................................................................4
2.3. Serial number ................................................................................................4
2.4. Main components ..........................................................................................4
2.5. Connecting to power supply mains ...............................................................5
2.6. Filler materials and equipment ......................................................................5
3. USE ......................................................................................................................5
3.1. Welding processes ........................................................................................5
3.1.1. Manual Metal Arc welding (MMA) ............................................................5
3.1.2. TIG welding .............................................................................................6
3.2. Operating functions .......................................................................................6
3.3. Welding selections ........................................................................................6
3.3.1. Manual Metal Arc welding (MMA) ............................................................6
3.3.2. DC TIG welding .......................................................................................6
3.4. Welding ........................................................................................................7
3.4.1. Earthing ...................................................................................................7
3.4.2. Welding ....................................................................................................7
3.5. Storing ...........................................................................................................7
4. MAINTENANCE .....................................................................................................7
4.1. Daily maintenance ........................................................................................8
4.2. Troubleshooting ............................................................................................8
4.3. Disposal of the machine ................................................................................8
5. ORDERING NUMBERS .........................................................................................8
6. TECHNICAL DATA ................................................................................................9
7. TERMS OF GUARANTEE ...................................................................................10
© KEMPPI OY
MINARC 150 VRD / 0538 – 3
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 only a small amount
of regular maintenance.
This manual is arranged to give you a good understanding of the equipment and its safe
use. There is also information on both servicing the unit as well as its technical data.
Read the instructions before taking the machine into use or servicing it for the first time.
Additional information on Kemppi products and their use can be obtained from Kemppi
or a Kemppi dealer.
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 Minarc 150 VRD is a manual metal arc welding machine, small in size, suitable
for industry, site and repair welding. The unit uses one phase connection voltage. Minarc
VRD is equipped with so called Voltage Reduction Device (VRD) function. VRD maintains open circuit coltage under 35 V. Minarc tolerates a great fluctuation of input voltage
and is thus suitable for work on sites using generator as well as to be used with long power
cables. Inverter technology has been used when designing the unit. Power regulation in
power source is done with IGBT transistors. Welding and earth cables are supplied with
the unit. They are equipped with suitable connections for the unit electrode holder, earth
clamps and connections.
Minarc can also be used for TIG welding. TIG arc is started by scratching. Ordering numbers
of additional equipment for TIG welding can be found in chapter 5. Ordering numbers.
1.3. OPERATION SAFETY
Read the warning texts carefully and follow the instructions.
Arc and welding spatter
Arc and the reflected radiation from it can damage unprotected eyes. Shield your eyes and
protect your surroundings appropriately before you start welding. Arc and welding spatter
will burn unprotected skin. When welding, use protective gloves and clothing.
Danger of fire and explosion
Observe the fire safety instructions. Remove flammable material around the place where
you will weld. Have necessary fire extinguishing equipment at hand when you weld. Note
dangers caused by special jobs, such as risk of fire and explosion when welding tanks.
Note! Sparks may ignite fire even hours later!
Welding is working with fire, note special instructions for such work.
© KEMPPI OY
4 – MINARC 150 VRD / 0538
Mains voltage
Never take welding machine inside the work piece (e.g. container or car). Never set the
welding machine on wet surface. Replace faulty cables immediately, they create a danger
to life and can cause a fire. See that the connecting cable does not stick nor touch sharp
edges or a hot welding piece.
Welding current circuit
Isolate yourself from the welding current circuit by wearing dry and undamaged protective clothing. Never work on a wet surface. Never use damaged welding cables. Never set
neither electrode holder, earth clamp nor the welding cables on top of the power source
or other electric equipment.
Welding fumes
Ensure adequate ventilation. Always take special measures when welding metals containing lead, cadmium, zinc, mercury or beryllium.
2. BEFORE YOU START USING THE UNIT
2.1. UNPACKING
The equipment is packed in durable packages, designed specially for them. Nevertheless,
always before using the equipment, make sure it was not damaged during transportation.
Also check that you have received what you ordered and that there are instructions for it.
NOTE! The packaging material of the products is suitable for recycling.
2.2. PLACING THE UNIT
Place the unit on horizontal, solid and clean surface. Shield it from heavy rain and scorching sun. Make sure that cooling air circulates freely.
2.3. SERIAL NUMBER
Serial number of the unit is marked on the rating plate of the unit. The serial number makes
it possible to trace product manufacturing series. You might need the serial number when
placing spare parts orders or when planning maintenance.
2.4. MAIN COMPONENTS
Connect welding cable and earth cable to their connections on the power source. Mains
cable and wall plug are already installed.
This equipment’s electromagnetic compatibility (EMC) is designed for use in an
industrial environment. Class A equipment is not intended for use in residential location
where the electrical power is provided by the public low-voltage supply system.
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