Lincoln Electric CITOTIG 200 AC/DC Operator's Manual page 16

AC Stick Welding
To start AC Stick welding process:
1. Set polarity
2. To select Stick welding:
Process
Press MODE several times until the LED above lights up
(led ON) is turned on.
By default the output current wave form is a 60Hz
sinusoidal current with balance 50% without offset.
Accessing to AC wave shape it is only possible change
the frequency.
Indicators AUTO, EN/EP and Balance are OFF.
GTAW welding
DC TIG Welding
To start DC Tig welding process:
1. Set polarity
2. To select TIG welding:
Process
Press MODE several times until the LED above lights up
Led 2T turned on for default.
LIFT TIG
When the mode pushbutton is in the Lift TIG position, the
machine is ready for Lift TIG welding. Lift TIG is a method
of starting a TIG weld by first pressing the TIG torch
electrode on the work piece in order to create a low
current short circuit. Then, the electrode is lifted from the
work piece to start the TIG arc.
HF TIG
When the mode pushbutton is in HF TIG position, the
machine is ready for HF TIG welding. During the HF TIG
mode, the TIG arc is started by HF without pressing the
electrode on the work piece. The HF used for starting the
TIG arc will remain on for 3 seconds; if the arc is not
started in this time limit, the trigger sequence must be
restarted.
NOTE: The HF start strength is adjusted to the
tungstensize and type, which can be selected in menu
GTAW.
AC Tig Welding
To start AC Tig welding process:
English
Visualization
Crisp
Soft
Visualization
Lift
HF
14
1. Set polarity
2. To select AC Tig welding:
Process
Press MODE several times until the LED above lights up
2T led is turned on for default.
Ac wave shape section is available. About Lift and Tig
starting see section above.
TIG Welding Sequences
During no welding operation at each pressure of SEL
push button, it's possible to step through all sequencer
and set parameters.
During welding the Sel pushbutton is enabled for the
following functions:

Output current

Only if Pulse Function is active: is possible operates
on the values of Duty (%), Frequency (Hz) and
Background current (A).
The new parameter value is automatically saved.
TIG Trigger Sequences
TIG welding can be done in either the 2-step or 4-step
mode. The specific sequences of operation for the trigger
modes are explained below.
Table 5. Legenda of the symbols used
Torch Pushbutton
Output Current
Gas Pre-flow
Gas
Gas Post-flow
Visualization
Lift
HF
English