6.4.2. Operation for TIG Welding
1. According to the above method to install is
correct, turn the power switch to the “ON”
position, the power L.E.D. light should illuminate,
the fan comes on, the device work properly.
2. Set the welding mode to ‘Lift TIG’ or ‘HF TIG’.
3. Set the welding parameters as required using
the parameters control knob (following the
instructions in the previous section).
4. The tungsten must be ground to a blunt point
in order to achieve optimum welding results. It
is critical to grind the tungsten electrode in the
direction the grinding wheel is turning.
5. Install the tungsten with approximately 3mm to
7mm sticking out from the gas cup, ensuring you
have correct sized collet.
6. Tighten the back cap.
7. Commence welding. If necessary, readjust the
parameters control knob to obtain the welding
condition re-quired.
8. After completion of welding the Power Source
should be left turned ON for 2 to 3 minutes.
This allows the fan to run and cool the internal
components.
9. Switch the ON/OFF Switch (located on the rear
panel) to the OFF.
6.4.3. Remote current control
TIG series of welding machines can accept remote
current control from a potentiometer / analogue signal
or a digital up/down button signal. Potentiometer
remote control will change the current from the 5A
minimum to the maximum set using the machine
current control. Using an up/ down button remote
signal, the current may be increased or decreased in 1A
increments, or ‘scrolls’ up to 30A at a time if the button is
held down. This is very useful for precision work.
POTENTIOMETER
Gun
switch
Adjust current roller wheel,
when it’s roll upwards, the
current increase, when it’s roll
downwards, the current increase.
UP/DOWN
Gun switch
Adjust current button,
when it’s pushed up,
the current increase,
when it’s pushed down,
the current decrease.
26
1.995.229 EN - Rev. 1.1
NOVATIG 403 DC PULSE
