Tweco 200 XT Auto-Cut 400V - Manual (Page 51)

AUTO-CUT 200 XT
Manual 0-5284 OPERATION 4-5
H. Plasma Gas Purge
Move the Power Supply ON/OFF switch to the ON position.
An automatic gas purge will remove any condensation that may have accumulated in the torch and leads while
the system was shut down. After the purge is complete, if the RUN/SET switch is in SET position, gases will flow.
I. Amperage Selection
Select the desired current output amperage.
J. Pressure and Flow Settings
1. Refer to the Torch manual for pressure and flow details according to the material being cut. Move the RUN/
SET switch to SET position. (Gas will flow through the torch). Set gas pressures and flows as follows:
2. To set the Plasma Gas pressure:
a. Pull out the knob on the Plasma Gas pressure control knob.
c. Turn the knob to adjust gas pressure.
d. Push the knob back in to lock the pressure setting.
3. To set the Shield Gas pressure:
For Gas Shield:
a. Set the Shield Mode Selector switch to the GAS position
b. Pull out the Shield Gas Pressure Control Knob.
c. Turn the knob to adjust gas pressure.
d. Push the knob back in to lock the pressure setting.
For H
2
O MIST Shield:
a. Set the Shield Mode Selector switch to the H
2
O MIST position
b. Turn the Water Mist Control Knob to adjust pressure.
NOTE
Unless the installation includes gas selection equipment between the gas supplies and the control console, switching
between gases requires disconnecting the gas supply line(s) from the control console rear panel and connecting the
appropriate input gases. Water input can remain connected permanently because the shield selector switch disables
and enables the flow of water for H
2
O Mist shield.