OM-260311 Page 24
5-8. Resetting Unit To Factory Default Settings
.
This procedure will delete all operator
specified parameters, and recall all
factory parameters.
1
Process/Set-up Switch
2
Power Switch
Press and hold the Process/Set-up switch
and turn the power switch on. Hold the
Process/Set-up switch until either 50A
(TIG Mode) or 80A (MMA Mode) is dis-
played. Release the Process/Set-up
switch.
If these current values are not displayed,
the machine has not reset. Repeat the
reset procedure and verify the current
indications have changed to the proper
values.
1
2
956142809_7-A
5-9. Lift-Arc
t
And HF TIG Start Procedures
Lift-Arc Start
When Lift-Arc button light is On, start arc as
follows:
1
TIG Electrode
2
Workpiece
Touch tungsten electrode to workpiece at
weld start point, enable output and shielding
gas with torch trigger, foot control, or hand
control.
Hold electrode to workpiece for 1-2
seconds
, and slowly lift electrode. Arc is
formed when electrode is lifted.
Normal open-circuit voltage is not present be-
fore tungsten electrode touches workpiece;
only a low sensing voltage is present between
electrode and workpiece. The solid-state out-
put contactor does not energize until after
electrode is touching workpiece. This allows
electrode to touch workpiece without over-
heating, sticking, or getting contaminated.
Application:
Lift-Arc is used for the DCEN or AC GTAW
process when HF Start method is not per-
mitted, or to replace the scratch method.
HF Start
When HF Start button light is On, start arc as
follows:
High frequency turns on to help start arc when
output is enabled. High frequency turns off
when arc is started, and turns on whenever
arc is broken to help restart arc.
Application:
HF start is used for the DCEN GTAW process
when a non-contact arc starting method is
required.
1
1
−
2
Seconds
“Touch”
Do NOT Strike Like A Match!
2
Lift-Arc Start Method
