Initial Operation: Freon Settings

Dichlorodifluoromethane is used in the Febetron as a dielectric to provide the necessary high voltage insulation between the pulser's case and the sleeve containing the module column. Insure that the freon pressure in the pulser chamber is 30 psig, and that no air pockets exist.

Specifications for Dielectric Gases

Freon Installation and Pressurization

Connect the freon pressure line from the cylinder to the freon input coupler at the top rear of the control console.

Remove the freon purge cap at the top rear of the pulser case, being careful to retain the seal ball located inside of the cap.

Open the valve on the freon bottle and the valve on the 1955 Freon Pressure Regulator Panel fully.

WARNING: It is important to test for the presence of air in the chamber to eliminate the possibility of high voltage breakdown. This is accomplished by viewing the gas stream leaving the chamber at the purge fitting. If freon is present, appreciable refraction will be noted when looking through the stream.

After significant refraction is first noted at the gas stream flowing from the purge valve, allow freon to flow freely for an additional five (5) minutes.

Replace the tube chamber freon purge cap and pressurize the freon in the pulser case to 30 psig as indicated on the 1955 Freon Pressure Regulator Panel.

At 30 psig close the control valve on the 1955 Freon Pressure Regulator Panel.