CHIEF MultiMig 721 Multivoltage, Instruction Manual

Page: 7 / 52

7
Mode 3L.
Specially well suited to weld aluminium. The HSA and
CRA functions are inhibited when mode 3L is activated.
3 currents are available that can be used in welding by
means of the welding torch start key.
The current and the connection time values are set as
follows:
Start Current . Start current, adjustable from 10 to 200%
of set welding current.
Connection Time . Possibility of adjusting from 0.1 to
10 seconds. Defines the connection time between Start
Current and welding current and between welding
current and crater filling current (crater filling at the
welding end)
Crater current may be adjusted from 10 to 200% of set
welding current.
Welding starts at the welding torch key pressure.
The recalled current will be the
Start curren t.
This current is kept as long as the welding torch trigger
is held down; when the welding torch trigger is released
this current connects to the welding current, which is
kept as long as the welding torch trigger is pressed again.
When the torch trigger is pressed again, the welding cur-
rent will connect to the crater filling current and it will be
maintained until the torch trigger is released.
To adjust the values of the
Start current , of the connec-
tion time and of the crater filling current enter the Main
Menu with key F
MENU
and enter the process parame-
ters menu.
Turn knob 2 to select the parameter, press it to enter the
regulation screen and turn it to adjust the value.
Press the key
DEF
to reset the factory set parameters.
D
0.0
Inductance.
The adjustment can vary from -9.9 to +9.9. Zero is the
number set by the factory: if the number is negative, the
impedance decreases and the arc becomes harder; if in-
creased, it becomes softer.
To enter the function select it with your finger. To adjust
the value just turn the knob 2 .
E
0.0
Arc Correction.
To modify the arc length select it with your finger. To ad -
just this value just turn the knob 2 .
F
MENU
Menu.
To use this function select it with your finger.
By selecting it you enter the Main Menu .
Process
SELECTION OF THE WELDING PROCESS
MIG, TIG OR MMA.
After having selected the MIG , welding process with
knob 2 you can select the arc transfer type: MIG Pulse ,
MIG Short and MIG Manual .
To confirm the selection press knob 2 or the key .
Material
SELECTION OF THE WIRE TYPE, DIAME-
TER AND WELDING GAS.
To confirm the selection press knob 2 or the key .