Operation
23
DTX-2200-3000 AC/DC
14.3 Control panel MTA22 / MTA30
14.3.1 Panel surface
Image 7
■ VRD
The Voltage Reduction Device (VRD) is a safety device that reduces the voltage. It prevents voltages forming
on the output terminals that may pose a danger to people.
Two-tone LED (off - red - green) indicates enabling of the VRD device.
The standard, preset settings for the firm do not activate the VRD function on the welding machine and so this
LED is normally off. To activate the VRD device, see the relevant paragraph.
■ WELDING PROCESS
The DTX HF welding machine offers 4 TIG/Electrode welding processes.
Each time the button is pushed, the welding machine switches to select the welding process indicated by the LED
that stays lit, in the following order:
L1 TIG AC with HF
ignition
L2 TIG DC with HF
ignition
L3 TIG DC with
“Lift”
type
ignition
L4 ELECTRODE
(MMA)
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