Scratch Start Tig Welding Mode - Gtaw Process - Miller XMT 450 CC/CV Owner's Manual

7-2. Scratch Start TIG Welding Mode - GTAW Process

!
Weld terminals are energized at all
times in Scratch Start TIG welding
mode.
1 Mode Switch
2 Left Display
3 Right Display
4 Adjust Control
2
8 4.5 8 5
Setup
For typical system connections refer to
Section 7-1.
Rotate Mode Switch to SCRATCH START
TIG position as shown.
The open circuit voltage is shown in the Left
Display. Preset amperage is shown in the
Right Display.
.
A complete Parts List is available at www.MillerWelds.com
4
3
1
Operation
The Adjust Control is used to set desired
preset amperage.
.
If a remote control is used for amper-
age adjustment, the adjustment will
function as a percentage of the preset
amperage.
.
For best results, gently scratch the
tungsten electrode to the work to initi-
ate an arc. To minimize arc flare at the
end of the weld, pull back the electrode
quickly to extinguish the arc.
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