Presentation; Inverter Technology; Technical Information - Helvi COMPACT 220AC/DC Manual De Instrucciones

PRESENTATION

INVERTER TECHNOLOGY

These current generators with inverters are
designed to work under unstable voltages.
The use of power components and elec-
trolytic condensers with higher voltage and a
particular control circuit ensure high stability
of the welding current even in the event of
power variations. These inverters allow for
welding with coated electrodes (MMA - DC)
and using scratch start, with infusible electro-
des (TIG - AC/DC), some equipped with HF.
Thanks to the technology used in their ma-
nufacturing, the generators make it particu-
larly easy to use the two MMA-TIG functions
right from the start. These inverter generators
consist of a power control board, a switching
transformer and an impedance. The board
includes several electronic functions to im-
prove the arc trigger and the dynamic action
of the welding, in order to obtain perfect wel-
dings with both applications.
An IGBT bridge ensures quick reaction and
maximum accuracy, together with a remar-
kable reduction of the magnetic components.
As a consequence, the weight of the genera-
tor is reduced. All these features, other than
their low power consumption, make these ge-
nerators perfect for all kinds of welding. They
are also equipped with a handle for easy mo-
vement.
For satisfying results, and in accordance with
all safety standards, users must be familiari-
zed with:
MMA (DC) and TIG (AC/DC) welding;
Regulation of welding parameters;
Welding performance.
28

TECHNICAL INFORMATION

The figures in Table 2 may differ from the
values on the information plates fixed to
the rear panel of their generators.
Note: For more information on the perfor-
mance of the product you have just pur-
chased, please refer to the values on the
information plates.
TIG DC
(1 ph)
KVA
Power
V
Uo
A
Amp. Min-Max
A
Amp. 60974-1
mm
Ø E TIG DC
TIG AC
(1 ph)
KVA
Power
V
Uo
A
Amp. Min-Max
A
Amp. 60974-1
mm
Ø E TIG AC
MMA DC
(1 ph)
KVA
Power
V
Uo
A
Amp. Min-Max
A
Amp. 60974-1
mm
Ø E
-
Insulation
-
Protec. Degree
kg
Weight
230V
50/60Hz
60% 3,8
70
5÷ 200
40% 200
60% 160
1,0 ÷ 2,4
230V
50/60Hz
60% 3,8
70
10 ÷ 200
40% 200
60% 160
1,0÷ 3,2
230V
50/60Hz
60% 3,8
70
5 ÷ 200
40% 200
60% 160
1,6 ÷ 5
H
IP22S
21
Tab.2