CHIEF MultiMig 721 Multivoltage, Инструкция по эксплуатации

Страница: 6 / 52

6
Ampere and volt parameters are synergically adjusted by
means of knob
2 .
B
To carry out the gas test and the wire test se-
lect the corresponding symbol.
When you press the key
(test gas), the gas is released
from the welding torch for a
time period that is adjusted by
means of the key
30
; the
value is adjusted by means of
the knob
2 , from 1 to 60 sec-
onds. To interrupt the gas release press the key again.
When you press the button (wire test), the wire comes
out of the welding torch at a speed that can be adjusted by
means of the key
8.0 ; the speed value, 1 to 22 meters/min-
ute, can be set using the knob 2 , and the key must be
pressed for the whole duration of the test.
To return to the previous menu, press the key
.
C
Start stop.
To choose the welding start mode, 2T , 4T or 3L , select
the corresponding symbol.
Mode 2T .
The machine begins welding when the torch trigger is
pressed, and stops when released. With mode
2T , you
can also choose the parameter HSA (Automatic Hot Start)
and the parameter CRA (Final Crater filler).
The 2 parameters HSA and CRA can be enabled at the
same time, or individually.
Once the parameter HSA has been enabled, the opera-
tor can adjust the Start current from 10 to 200% of the
welding current.
The
Current time can also be adjusted from 0.1 to 10
seconds. The Connection time between the Start cur-
rent and the welding current can also be adjusted from 0.1
to 10 seconds. To adjust
Start current values, Current
time and Connection time , enter Main Menu by select-
ing the key F
MENU
and using the key
PARAMETERS
enter
the process parameters menu . Turn knob 2 to select
the parameter, press it to enter the regulation screen and
turn it to adjust the value.
Press that key DEF to reset
the manufacturer set parame-
ters.
After activating the param-
eter
CRA
, the operator can
adjust the connection time
between the welding current
and the crater filling current (Crater Current) from 0.1 to
10 seconds. The operator can also adjust the crater filling
current from 10 to 200% of the welding current.
The duration of this current can also be adjusted from 0.1 to
10 seconds of the
Crater filling time .
To adjust the values of connection time , crater filling cur -
rent and crater filling time enter the main menu by select-
ing key F MENU and enter the process parameters 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.
Mode 4T.
To begin welding press and release the torch trigger; to
stop welding press and release it again. Together with
mode 4T you may also select function HSA (automatic
hot start) and function CRA (final crater filling). (See 2T
Mode ).