Miller XMT 425 CC/CV Руководство пользователя - Страница 26
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Печатать страницу5-4. 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.