The 274023 Nude Bayard-Alpert Hot Cathode Vacuum Gauge features dual thoria-coated iridium filaments for a <2 x 10-11 to 1 x 10-2 Torr vacuum measurement range, and has a 2.75 inch non-rotatable CF flange fitting. Bayard-Alpert (hot cathode) gauges provide pressure measurement based on the ionization of gas molecules by a constant flow of electrons from a filament. The number of ions created is directly proportional to the density of molecules. The ions are collected and measured by a vacuum gauge controller and converted to pressure based on the sensitivity of the gauge. nude Bayard-Alpert hot cathode vacuum gauges are the best solution to severe ionization gauge pumping problems.
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274023 - Drawings
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274023
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