Miller XMT 425 CC/CV Instrukcja obsługi - Strona 26

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5-4. Lift-Arc Trigger Hold TIG

5-5.

Stick Start Procedure

OM-257 486 Page 22
1
1 − 2
"Touch"
Seconds
Do NOT Strike Like A Match!
1
3
2
2
1
TIG Electrode
2
Workpiece
.
Procedure requires:
control
Start sequence:
Touch tungsten electrode to
workpiece at weld start point.
Momentarily depress output
switch.
Slowly lift electrode. An arc will
form when electrode is lifted.
To stop welding, momentarily
depress output switch and out-
put will shut off.
Note: If output switch is momen-
tarily depressed and tungsten is
not touching workpiece:
Do not touch tungsten to work.
Output will shut off in 3 seconds.
Start sequence over.
Ref. S-156 279
With Stick selected, start arc as fol-
lows:
1
Electrode
2
Workpiece
3
Arc
Drag electrode across workpiece
like striking a match; lift electrode
slightly after touching work. If arc
goes out electrode was lifted to high.
If electrode sticks to workpiece, use
a quick twist to free it.
Low OCV Stick
The unit can be optionally config-
ured for low open circuit voltage
(OCV) operation. When the unit is
configured for low OCV operation
only a low sensing voltage (approxi-
mately 15 VDC) is present between
the electrode and the workpiece
prior to the electrode touching the
workpiece. Consult
a
Factory
Authorized Service Agent for infor-
mation regarding how to configure
the unit for low OCV stick welding
operation.