L
Presence of accessory, push-pull torch
(optional).
M
Presence of USB key in connector 6
N
Date and Time.
O
Description of welding program used.
6.2 TIG PROCESS.
A
B
C
A
The screen displays the welding current in amps and
the welding voltage in volts.
B
To carry out the gas test refer to the relevant
section in "MIG WELDING process".
C
Start Mode.
Mode 2T and 4T.
For operating instructions refer to the relevant sections in
"MIG process".
Mode 3L.
Three welding currents can be selected using the torch
trigger. The current and the connection time values are
set as follows:
Start Current, adjustable from 10 to 200% of set welding
current.
Slope time, adjustable from 0.1 to 10 seconds. Defines
the connection time between start current and welding
current and between welding current and crater current
or crater filling when welding is complete.
Crater current may be adjusted from 10 to 200% of set
welding current.
Welding starts at the torch trigger pressure. The current
called up will be the start current. This current is main-
D
E
F
tained 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 maintained till
the welding torch trigger is pressed again.
When the torch trigger is pressed again, the welding cur-
rent will connect to the crater current and it will be main-
tained until the torch trigger is released.
Pulsed (Can be used in Mode 2T-4T and 3L)
Pulsed TIG welding.
In this type of welding, current intensity varies between two
levels; this variation occurs at a given frequency.
G
Impulse
This option regulates the lower of the two currents re-
quired for this welding process; the percentage of this
current is displayed in relation to the main current.
This pulse can be adjusted from 1% al 100% of the main
current.
Frequency
This is the pulse frequency.
This value can be adjusted from 0.1Hz to 500Hz.
Duty cycle
This is the duration of the peak current, expressed as a
percentage of frequency time.
This value can be adjusted from 10% to 90%.
D
Current slope down.
0.5s
Adjustable from 0 to +10 seconds.
E
Postflow.
10.0s
Adjustable from 0 to +25 seconds.
27