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Kemppi A3 MIG Power Source 400 Manual

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A3 MIG Welder© Kemppi Oy 2018 1826
OPERATING MANUAL
Displays 1 and 2
The two displays of the control panel show adjustable
operation parameters, their values, and the units of
measure. During welding, display (1) shows the welding
current value that is being used, while display (2) shows
the welding voltage. The displays can show the following
symbols.
Symbol Character Symbol Character
a
A
s
S
b
B
t
T
c
C
u
U
d
D
v
V
e
E
w
W
f
F
x
X
g
G
y
Y
h
H
z
Z
i
I
1
1
j
J
2
2
k
K
3
3
l
L
4
4
m
M
5
5
n
N
6
6
o
O
7
7
p
P
8
8
q
Q
9
9
r
R
0
0
Control knobs 1 and 2
The left-hand control knob (1) allows the adjustment of
the speed of wire feeding. The selected speed is shown
on the display (1) on the left-hand side.
The right-hand side control knob (2) allows for control-
ling the welding voltage in MIG and 1-MIG processes, in
which case the selected voltage is shown on the right-
hand side display (2).
These control knobs are also used for specifying the oper-
ating parameters. A parameter for adjustment is selected
with the left-hand knob, while the value of the parameter
is selected with the right-hand knob.
Adjusting MIG dynamics (Arc Force)
When you press button (2), you can adjust the MIG weld-
ing dynamics of the machine by means of the knob (2).
When using the MIG or 1-MIG welding process, the weld-
ing dynamics setting aects the features of the welding
arc and the amount of welding spatter as shown below:
The value 0 is the recommended basic setting.
Use values -1...-9 if you want a softer arc and less spatter.
Use values 1...9 if you want a rougher and more stable
arc. This setting is useful when you are using 100% CO
shielding gas when welding steel.
Gas test
The gas test button (3) opens the gas valve without acti-
vating the wire feed or power source. By default, gas ows
for 20 seconds. The remaining gas ow time is shown on
the display.
The right-hand knob allows you to set the default gas
ow time, between 10 and 60 seconds, and store the new
default value in the machine’s memory. To stop the gas
test, press the ESC button (1).
… 12 …


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