8
6. Arc force adjustment:
If you adjust this switch at MMA, then it can change the welding
characteristic of the little current.
7. Base current:
At DC TIG pulse, this button can adjust the volume of the valley
current.
8. Pulse frequency switch:
At DC TIG, and place the DC/PULSE at PULSE, this switch can adjust the
pulse frequency (0.5-300HZ).
9. Air-occupying proportion:
Change the air-occupying proportion at DCTIG pulse.
C. Pilot light function:
Pilot light for over-heat protection:
If the machine works continuously for long time under big current, its
inner parts may get burned as a result of over-heat. To avoid this, we
set the pilot light, when it’s on, please stop working, but do not turn off
the machine, and it can recover after 2 or 3 mm.
INSTALLATION
TIG welders are equipped with power voltage complement and when the power
voltage ranges between ±15%, it can still work.
When using long output cable, to reduce voltage-decreasing, we suggest you
choose cables with wider section; but if the cable is too long, it may cause
abnormal in the working system, so we recommend you use the given length.
1. Make sure the ventilating mouth is not blocked or covered lest the
cooling system invalid.
2. Connect well the C02 source. The gas supply includes gas bottle, gas
hose and gas regulator, the connection of the hose should be connected
with hose clamp or other things lest gas-leaking or air-in.
3. Connect the case to earth with cables whose section is no less than
6mm
2
, from the back of the welding machine to earth screw to
earth-connecting equipment.
4. Plug the air-plug of the back circuit cable to on the air-socket
“+”
and
whirl the switch in clockwise direction tightly; the other terminal of the
earth clamp is tied to the work piece.
5. Tie the power plug to the concerned socket, and make sure that the
power supply is AC 380V with a tolerance error of the given range.
6. Set up the water-cooling torch according to the given map, tie the
copper screw at one end of the torch to the one-knob on the panel