11
Welding
A.
Plasma welding
1.
Current down slope time can be adjusted at poti
c
to give a delay time of 0,5 to 5,0 s.
after the third operation in the 4-stroke mode has been activated (see t
a
in diagram).
2.
Position of poti
h
defines duration of current up-slope (see t
r
in diagram), whereas time of
down-slope t
f
is set at poti
m
.
3.
Activate torch- or foot switch (lamp
g
will light) 1. and 2. stroke.
4.
To finish the welding operation, down-slope is initiated by actuating torch- or foot- switch.
3. stroke (closing of keyhole)
5.
After the time set at poti
c
has passed, down-slope starts. When down-slope is over,
switch can be released.
