HTP Invertig 313, Руководство пользователя

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without HF and by depressing the foot pedal before the tungsten touches the base metal. At this point, whatever you set
the machine to (however much the foot pedal is depressed) the arc will strike at that amperage. This is, by far, the least
preferable arc starting method with the Invertig.
o) Pipe Mode
We specifically designed the Pipe mode for pipe welding and pipe training in an educational facility. When you activate
Pipe mode, you can only choose between Stick and TIG 2T (both DC only modes). If you plug in a foot pedal or other
remote control, the remote control symbol blinks since all remote control functions are deactivated. In TIG 2T, the
welding output is now hot and the gas solenoid valve in the machine is deactivated. At this point, you typically install a
26 Series air-cooled torch with a gas valve on the torch head, and then hook the torch up directly to an Argon tank via a
flowmeter or regulator. Torches like the Heavy Hitter 350, with full size gas lenses, are popular torches for that. In order
to adapt the Dinse outlet of the Invertig to an LC-40 or Tweco #2 adapter, part number DA-5095 is required.
The Invertig can only be used in lift-arc mode only for pipe welding. To terminate the weld, you cold snap out or set a
slope down timer to initiate the weld termination procedure. The PIPE mode reflects a very common setup and method
that is taught at countless colleges and welding schools across the United States and used daily in the field to weld pipe in
the oil and the food processing industries.
Procedure for TIG Welding with LIFT Start in PIPE Mode
Start Welding:
 Bring the TIG electrode (tungsten) into contact with the work piece.

Lift the torch from the side, move slightly away from the work piece, and start the welding process.
End Welding:
 With the slope down function turned on, you can end your weld by regulating the distance between the arc and the
work piece as shown in
Fig. 9 .
 With the slope down function turned off, you must pull the arc away from the work piece to end the welding process.
PRO TIP: When you turn on Pipe Mode, the machine automatically turns off HF-start (as this is a key feature of
the Pipe Mode program). When you turn off Pipe Mode, HF does not turn back on automatically—you have to
turn HF back on yourself. You can do so by pressing button E (Fig. 11) followed by button D (Fig. 11).
p) Amperage Limitation in Single-Phase (Invertig 400 AC/DC Only)
In single-phase, you can limit the output of the Invertig 400 to 300 amps. This can be an advantage when a torch is used
that is not rated for 350 amps, but only for 300 amps, like the CK230. This way, accidental torch failure can be prevented.
Also, when welding on single-phase the duty-cycle is limited compared to 3-phase operation. The duty-cycle at 300 amps
is higher than at 350 amps so if the machine is frequently used on thicker material it helps with higher duty-cycles as
well.
Fig. 9 Shows how you can lift the torch
from the work piece to start the slope down
process and end welding.
Fig. 10 The slope down function is turned
off at 0.1 seconds as shown. If you increase
the slope down value, then Fig. 10 is
applicable to terminate the arc.