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Translation of the original instructions
TIG AC WELDING
• TIG AC - Easy
This mode allows a quick use of AC welding by adjusting the electrode diameter (the selected value is indicated by the different LEDs on the HMI).
With this mode, "Balance" and "Frequency" settings parameters are unchangeable. The choice of the electrode diameter affects the welding current
and the scraping values as follows :
Electrode diameter
1,6 mm
2,4 mm
3,2 mm
4,0 mm
With this mode, the frequency value is related to the welding current value as follows :
Current (A)
10 > 40
41 > 90
91 > 140
141 > 170
171 > 200
When switching from "AC - Easy" to "AC" mode, the last welding parameters "AC - EASY" are retained and can be used as a basis for further
refinement in "AC" (e.g. : welding frequency and balance).
• TIG AC - Standard
This TIG AC - Standard welding mode is dedicated to welding aluminium and its alloys (Al, AlSi, AlMg, AlMg, AlMn...). Alternating current (AC) includes
a cleaning phase which is essential for aluminium welding.
The balance: It allows the part to be cleaned during welding. The balance: It allows the part to be cleaned during welding.
The frequency: the frequency is used to adjust the concentration of the arc. A high frequency generates a concentrated arc. A low frequency
generates a wider arc.
High frequency
The AC/DC current-frequency characteristic: In AC, the value of the welding current and its frequency are linked by the function below :
AC Current versus Frequency
Frequency (Hz)
200
100
80
20
0 10 30 50
• TIG AC - Pulsed
The Pulse function is available in TIG AC - Easy and TIG AC - Standard. The pulse frequency is adjustable from 0.1 Hz to 10 Hz.
TIG SPOT DC or AC
The " SPOT" mode allows the pre-assembly of parts by tacking. The tacking time adjustment allows a better reproducibility and the realisation of
non-oxidised tack. As default, when the " SPOT " mode is selected, the start and the end of the welding is done at the trigger. However, the " F(Hz) "
button and the main encoder allow the user to refine this time. The time in this "SPOT" tacking mode is adjustable by 0.1 sec. at 60 sec. in steps of
0.1 sec. The ignition is then done with the trigger. To return to an undefined spot time, simply select "0.0s".
PROTIG 201 AC/DC - 201L AC/DC
I
I
min
max
10 A
80 A
45 A
120 A
60 A
180 A
75 A
200 A
Frequency (Hz)
117
100
79
70
60
Low frequency
150
200
Current (A)
Penetration and cleaning
30 %
37 %
43 %
50 %
- Between 10 A and 30 A, the maximum frequency is limited to 20 Hz.
- Between 30 A and 50 A, the maximum frequency is between 80 Hz and 200
Hz.
- Between 50 A and 150 A, the maximum frequency is 200 Hz.
- Between 150 A and 200 A, the maximum frequency decreases from 200 Hz to
100 Hz.
EN
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