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• With the aid of the remote regulator, the current for TIG and rod electrode welding can
be remotely controlled. The unit switches automatically to remote regulation when a
remote regulator is connected to 21.
• With the remote regulator, any current value between 3 A and the preset welding cur-
rent I2 on the unit can be selected.
When the mains power switch 22 is switched on, the mains LED 9 lights on the front end.
The LED blinks for mains under-voltage.
To avoid overload, a thermostat in built in that responds when the temperature increases ex-
cessively. When this occurs, the welding current is interrupted and the over-temperature
LED 8 lights. When the temperature sinks, the thermostat resets automatically.
The selector switch 1 switches the unit to TIG or electrode operation. The operating mode is
set by repeated pressing of the operating mode button 7. The LEDs 14 -19 indicate the weld-
ing function selected. Only the operating modes are available that are possible with the ex-
isting equipment configuration.
5.1 ELECTRODE WELDING
• Set the selector switch 1 to electrode operation.
For this setting, the arc-force behaviour and the anti-stick feature are activated.
+ Positive Electrode Polarisation
The + LED 14 lights.
A DC voltage is applied. In this case, socket 3 is the plus pole and socket 5 is the minus pole.
– Negative Electrode Polarisation
The – LED 15 lights.
A DC voltage is applied. In this case, socket 3 is the minus pole and socket 5 is the plus pole.
AC Alternating current
The AC LED 16 lights.
An AC voltage is applied to the sockets 3 and 5.
Presettings:
• Welding current I2 on the regulator 6
• Ignition current I1 on the regulator 10
• Ignition time on regulator 12
1 Selector switch, TIG/electrode welding 12 Regulator for current reduction ramp/
ignition time
2 Control line connection for
TIG torch
13 LED, current reduction ramp/
ignition time
3 Connection for electrode holder/
TIG torch
14 + LED, direct current with
positive electrode polarisation
4 Gas connection for TIG torch 15 – LED, direct current with
negative electrode polarisation
5 Connection for workpiece cable 16 AC LED, alternating current
6 Regulator for welding current I2 17 LED, ignition type (lift arc/HF ignition)
7 Operating mode selection button 18 LED, four-step operation
8 LED, over-temperature 19 LED, two-step operation
9 LED, mains 20 Connection for gas bottle
10 Regulator for
ignition/short circuit current I1
21 Remote regulator input
11 LED, ignition current I1 22 Mains on/off switch