Figure 4: Air-gas in
Air and Argon Connection to Regulator/Filter
Plasma cutting requires air, but TIG welding requires argon, helium, or mixtures of
argon, helium and nitrogen as a shielding gas. Air or CO2 are NOT suitable for TIG
welding and will burn the tungsten electrode.
The regulator/filter has three ports: left, right and middle. The middle port is the gauge
port. It should be connected to the red tube that comes out of the upper-right part of the
back panel of the CT5200D/DX. A right-angle connector is provided with the
regulator/filter.
Mount the bracket for the regulator/filter as shown in Figure 2.
1. Screw the right-angle connector into the middle port of the regulator/filter.
2. Screw barb connectors into the left and right ports.
3. Attach hoses to the barb connectors as shown in Figure 3. NOTE: if it is
difficult to put the hose over a barb connector, you can heat the hose
gently with a hair dryer to soften it. If you do this, make sure you do not
get it too hot to touch.
4. The right port should be connected to the Air/Gas Inlet port in the bottom
right corner of the CT5300D. See Figure 4.
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