Helvi Beta WELDING 1860BH/120A Manual De Instrucciones página 9

3.0 BRIEF INTRODUCTION
Your welder belongs to a range of welding in-
verters for MMA - Manual Metal Arc Welding
that adopts the latest pulse width modulation
(PWM) technology and the insulated gate
bipolar transistor (IGBT) power module to
grant optimal performances: constant current
output to make welding arc more stable and
stepless current regulation.
3.1 TECHNICAL DATA
You may find the data table of your machi-
ne in the last page of this manual.
The data may also vary according to the
torch that is gonna be used with the ge-
nerator.
4.0 INSTALLATION OF THE
EQUIPMENT
Proper operation of the generator is ensu-
red by adequate installation. The assem-
bly of the inverter must be done by expert
people, following the instructions and in
full respect of the safety standards.
- Remove the welder from the carton box.
BEFORE ATTEMPTING ANY ELECTRI-
CAL CONNECTION CHECK THE DATA
PLATE AND MAKE SURE THAT THE IN-
PUT VOLTAGE AND THE FREQUENCY
ARE THE SAME OF THE MAINS OUTLET
TO BE USED.
EARTHING
- To protect users the welding machi-
nes must be connected properly to the
earth (ground) system (INTERNATIONAL
SAFETY REGULATIONS).
- It is indispensable to earth (ground)
the machine properly with the yellow-
green conductor of the power supply ca-
ble, in order to avoid discharges due to
accidental contacts with earthed objects.
- The chassis (that is conductive) is
electrically connected to the earth con-
ductor. Failure to earth the equipment
correctly can cause electric shocks dan-
gerous to the users.
- Plug the inverter to the mains.
Do not use the generator with input ca-
bles' extensions longer than 10m and
thinner than 2.5mm². Remember to keep
them layed and not wound or entangled.
Do not use the welder with the side panels
partially or completely removed in order
to avoid accidental contacts with inner
live parts.
- The inverter is now ready for use. Make
sure you are welding in a properly ventilated
area and that the ventilation openings of the
machine are not obstructed (poor air ventila-
tion may reduce the duty cycle of the unit and
cause damages). Now you may choose the
welding process by connecting the accesso-
ries as showed in the following pages.
EN-5