Arc Force: This sets the current increase ratio in
relation to the welding current, that the welder
can force, in order to keep the arc appropriately
ignited in any position.
Hot Start: This sets the current increase ratio in
relation to the welding current, that the welder
can force when the arc is ignited, to improve the
quality of the same.
Hot start span: This sets the time period when
the jot start current is forced.
Remote: This switches the remote control (which
connects to socket 13 of fig.1) of the current
intensity ON or OFF.
10 WELDING TABLE Use the table below to
calculate the welding current, according to the
type of electrode used:
ELECTRODE
DIAMETER
WELDING
CURRENT
ELECTRODE
LENGTH
mm
A
mm
2.0
45-60
300
2.5
60-100
300
3.25
90-140
450
4.0
140-170
450
5.0
190-230
450
11. CONNECTION FOR MMA WELDING
The Dinse connector is inserted by lining-up the
key with the groove and turning the connector in
a clockwise direction until it stops. The electrode
clamp holder and earth must be connected
to the ‘+’ and ‘-‘ terminals, according to the
specifications of the electrodes used.
. IGNITING THE MMA ARC
This is carried out by stopping a while over the
last crater (i.e. the end of the welding seam),
returning slowly on the previously deposited
seam for approximately two centimetres and,
only at this point, moving the electrode away
from the workpiece to turn off the arc.
Create the contact
for igniting the arc
at a distance of
approximately 5
cm from the initial
welding point.
Immediately move
the electrode
towards the
workpiece, without
touching it, in order
to keep the arc
ignited.
Quickly bring the
electrode, without
turning off the arc,
towards the point
where the welding
seam will begin.
Begin welding,
advancing slowly.
The distance
between the tip of
the electrode and the
workpiece must be as
identical as possible
to the diameter of
the electrode in use.
process; press the
button again to stop
welding. 4Bi:
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