Working Area - Helvi COMPACT 211 EASY AC/DC Manual De Instrucciones

tion to the neck and face (including the sides)
against the light of the electric arc (glare from
the visible light and infrared and ultraviolet
radiations). The helmet or the mask must be
equipped with a protector whose degree of
opacity will depend on the welding procedure
and on the value of the electric arc current,
according to the values contained in Table 1
(EN 169).
Plasma
DIN
cutting electrodes
9 20 - 39A
10
11 50 - 149A 80 - 174A 175 - 224A 40 - 99A
12 150 - 249A 175 - 299A 225 - 274A 100 - 174A
13 250 - 400A 300 - 499 275 - 349A 175 - 249A
14
MIG for
DIN Light Al-
loys
10 80 - 99A
11 100 - 174A 100 - 174A 80 - 124A
12 175 - 249A 175 - 299A 125 - 274A
13 250 - 349A 300 - 499A 275 - 349A
14 350 - 499A 500 - 550A 350 - 449A
• The colored filter (inactinic filter) must be
kept clean at all times. Should it break or dete-
riorate (Fig. 3), replace it with a new filter, with
the same degree of opacity. The colored filter
must be protected against impact and welding
projections by means of a transparent glass
positioned on the anterior part of the mask.
This transparent glass must be replaced whe-
never visibility is reduced during welding.

WORKING AREA

Welding operations must be carried out in
a sufficiently ventilated place, isolated from
other working areas. If this is not possible,
anyone near the person operating the wel-
ding machine and their assistants must be
protected by curtains and transparent opa-
Arc/Air
Coated
Carbon
Electrodes
40 - 79A 125 - 174A 20 - 39A
500A 350 - 449A 250 - 400A
MIG for
Steel MAG
Pieces
80 - 99A 40 - 79A
Table 1
Fig.3
que screens, self-extinguishable and in ac-
cordance with regulation EN 1598 (the color
of the screen will depend on the welding pro-
cess and on the value of the currents used),
anti-UV goggles and, if necessary, masks
with suitable protection filter (Fig. 4).
TIG
5 - 19A
Prior to any welding operation, clear the wor-
king area from all chlorine solvents, which are
normally used to clean or degrease the wor-
king material. The fumes of these solvents,
when submitted to the radiations of an electric
arc, even from afar, may, in some cases, tran-
sform into toxic gases. Make sure all the pie-
ces which are to be welded are absolutely dry.
Warning: When the welding operator
is in a closed space, the use of chlori-
ne solvents is absolutely forbidden in
the presence of electric arcs.
During the grinding, brushing and hamme-
ring operations involving the welded pieces,
always wear protection goggles with transpa-
rent lens to prevent projected chips and any
other foreign particles from hurting your eyes
(Fig. 5).
Unhealthy or dangerous gases or fumes must
be collected (as they are produced) as clo-
se and efficiently as possible to the source
of emission, in such a manner that the con-
centration of pollutants does not exceed the
permitted limits (Fig. 6). In addition, all wel-
ding operations must be carried out on metal
surfaces devoid of rust and paint, to avoid the
formation of hazardous fumes.
EN-3
Fig.4
Fig.5