Kemppi Minarc 150 VRD - Manual (Page 3)

© 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 main-
tains 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.