Product Manual

On machines with an Arc Force se-
lector, the same result can be obtained
by turning the selector "ON" or "OFF".
When switched "ON" a base current is
applied to the welding current output
acting as a sort of "automatic" arc for-
cing that does not need to be regulated.
For technical data see page M1.6
USE AS WELDER
M
34.1
REV.0-10/99
MACHINE WITH REDUCTION SCALE
SWITCH
For small electrodes (up to Ø 3.25-130A
and 4-200A) it is recommended to use the
reduction scale switch (I3) allowing a more
accurate regulation of the welding current
(lever position at 130 A and/or 200A).
When using electrodes of a diameter greater than
3.25 and/or 4 set the welding scale knob to 100%
and/or max. position.
The arc regulator (T) functions equally between both
positions (100%-130A and/or 200A).
Protection fuse (when assembled):the fuse
protects the electronic welding PCB in case
the remote control is short circuited.
MACHINE WITH O.C.V.
lt permits to choose, according to the work to be
done and/or the electrode type used,
the best O.C.V.
MACHINE WITH POLARITY INVERTER
lt permits to have at the electrode holder the
positive or negative polarity of the
welding diode bridge.
It is used above all in the rst run with
cellulosic electrodes to lower the bath
temperature and so doing ease up the welding on
pipes of small thickness
MACHINE WITH BASIC CURRENT "BC"
Positioning the switch on „ON“, is obtained a low
voltage welding current which keeps,
always, the lit arc necessary for some
types of cellulosic electrodes or when a
high penetration is wanted.
For electrodes of basic or rutile type,
position the switch on "OFF", the welding
current will always remain constant.
"CC/CV" MODELS
These models can be used with electrodes
or for TIG welding by selecting the CC
(constant current) mode, and with solid
wire (MIG, MAG) or flux cored wire
selecting the CV (constant voltage) mode.
The mode of operation is selected by a
switch on the front panel.
MACHINE WITH ARC CONTROL OR SELEC-
TOR "ARC FORCE"
Set the welding arc using adjuster knob
(P) so as to abtain, for the
chosen current value, the best
arc characteristic according to
the electrode type and to the
work to be performed.
Polarity
switch
FUSE
65V
75V
ON
OFF
CC
CV
ARC CONTROL
CONTROLLO ARCO
1
2
3
6
5
4
9
8
7
ON
OFF
ARC FORCE
06/04/04 M34-GB
100%
XXX A
max
+ At the end of every welding process and/or
work, proceed with all the use operations in
inverted sense.
To stop the machine see pages M 22-27.