IPOTOOLS TIG 200DI ACDC IGBT DIGITAL Original Instruction Manual page 25

3. Set switch 10 to "pulse off" position and switch 7 to "DC" position
4. Gas test: Switch on the device with switch 20, open the bottle screw of the
argon bottle and set the appropriate gas flow on the pressure reducer. When the
button on the burner is pressed, the solenoid valve in the device must open and the
gas must run out of the burner nozzle,
5. Select the welding process, see below,
6. The tip of the tungsten electrode should normally be pulled out 5 mm and 2-3
mm away from the weld when welding. Press the switch on the torch to start
welding.
Note: When switch 12 is set to "2T" during welding, the torch switch must be pressed at all
times during welding, and in "4T" mode, press the switch briefly only at the beginning and
end of welding.
7. At the end of welding, release the torch switch, the welding current is gradually
reduced (the time is adjustable) and the arc goes out. Hold the torch over the weld for
a while after welding, the shielding gas prevents air from entering the heated weld
and thus prevents the weld from oxidizing.
8. When the welding process is complete, close the argon cylinder and turn off the
welding machine.
1.3 PULZ DC TIG WELDING
Pulse welding differs from continuous (DC) welding. The basic and pulse welding current are
changed. The flow curve is shown in the following picture. Ip and Ib and their continuous time
tp and tb can be regulated according to requirements. The amplitude value of the welding
current changes periodically with a certain frequency. Select pulse mode for welding thinner
welds that require more temperature control.
Base and pulse current settings
1. Switch 7 to position »DC«,
2. Set switch 10 to "Pulse ON",
3. Set switch 12 to "DC",
4. Use switch 3 to select the parameter from the welding curve you want to set and then set
the desired value with button 13.
INSTRUCTION MANUAL
TIG 200DI ACDC Welding machine
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