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6 LED, welding LED illuminates when voltage is applied to the welding current
socket. In the TIG operation mode, after activating the torch but-
ton whereas in the electrode operation mode, this occurs after
selecting electrode welding.
7 LED,
protective gas on
LED illuminates when the solenoid valve is open and the protec-
tive gas can flow. After switching the device on, the hose bundle
is automatically purged with protective gas.
8 LED, ramp up LED lights in the ramp up phase (Up-Slope).
9 Potentiometer,
ramp up
Sets the rate at which the current ramps up from the ignition cur-
rent I1 to the welding current I2. Turning direction anticlockwise
decreases the ramp rate.
10 Welding current
7 segment display
Displays the value of the welding current of the current function.
11 Potentiometer, I4 Sets the current I4 during pulsed operation.
12 LED, I4 active I4 active. During pulsed operation: Toggles between the two dis-
plays I4 and I2 with fixed pulse frequency.
13 LED, ramp down Displays the ramp down phase (Down-Slope).
14 Potentiometer,
ramp down
Sets the rate at which the welding current I2 ramps down to the
drop-off current I3 at the end of throat. The ramp down prevents
cratering.
15 Button, gas test In order to manually purge the hose bundle with protective gas.
Pressing this button opens the gas valve without applying a weld-
ing voltage to the electrode.
During pulsed operation: When activating the button gas test, the
display (10) switches to the I4 value.
16 Display, error code Display of possible error messages.
17 LED, fault LED flashes if a fault condition occurs in the device. The error
message appears in the error display.
18 Potentiometer,
gas post-flow time
Sets the gas post-flow time after finishing welding to protect the
weldpool. The time can be set from approximately 0.2 to 30s.
19 Potentiometer,
AC frequency
Continuous setting of the AC frequency from 50 Hz up to 200 Hz.
20 LED, final current I3 LED illuminates when the final current I3 is active.
21 Potentiometer,
AC balance
If the potentiometer is set to the middle position, the positive and
the negative half cycles are equal for AC welding.
This potentiometer is deactivated, when welding using DC cur-
rent (DC operation).
22 Welding current
selector
• DC with lift arc ignition
• DC with HF ignition
• Square AC with HF ignition
• Sinusoidal AC with HF ignition
23 LED, I1 LED illuminates, when the ignition current I1 is active.
24 Switch,
pulse welding/
normal welding
• Fast pulse Pulse frequency in the range of 250 Hz to 5 Hz.
• Normal pulse Pulse frequency in the range of 25 Hz to 0.5 Hz.
• Normal welding Normal TIG welding without pulsation.
25 Potentiometer,
ignition current I1
Soft-Hot-Start
Potentiometer I1 determines the ignition behaviour for electrode
and TIG welding. It can be set as a percentage of the possible
welding current of the power supply.
26 Potentiometer,
pulse time I2
Sets the current I2 pulse time.
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