Nude Hot Cathode Ionization Vacuum Pressure Sensors
Model: 100006841
Nude Hot Cathode Ionization Vacuum Pressure Sensors
Model: 100006841
Overview
Overview
The 100006841 Nude Tube Vacuum Sensor features a Yttria-coated Iridium filament for a 10-2 - 10-10 Torr vacuum measurement range and a size NW40 ISO-KF flange fitting. This Bayard-Alpert style ionization vacuum sensor, which uses a fine wire collector located in the center of a grid. Because of its small area, few x-rays hit the collector, and a vacuum gauge can measure pressures to very low levels. Because the sensing portion of the tube is located within the vacuum system and experiences the system true pressure, nude tubes give a representative pressure measurement and respond more quickly than a glass envelope sensor to pressure changes.
Technical Specs
- TypeNude Tube Hot Cathode Sensor
- Installation OrientationAny
- Measurement Range1.0 x 10-10 - 1.0 x 10-2 Torr, 1.3 x 10-10 - 1.3 x 10-2 mbar, 1.3 x 10-8 - 1.3 Pascal
- Set Point Range5.0 x 10-10 - 9.5 x 10-3 Torr, 6.5 x 10-10 - 1.2 x 10-2 mbar, 6.5 x 10-8 - 1.2 Pascal
- Calibration GasAir/Nitrogen
- FilamentYttria-coated Iridium
- Fitting TypeISO-KF NW40
- ConnectorCustom D-sub to controller
- Bake Out Temperature150°C, 60°C with cable attached
- VoltagesFilament bias: +30 V, Grid: +180 V, Filament: +4.7 V at 1.8 A
- Exposed MaterialsNickel, Inconel x-750, 304 stainless steel, glass, tungsten, platinum
- X-ray Limit3 x 10-10 Torr
- Sensitivity9 Torr -1 (±20%)
- Emission Current1 mA at <1 x 10-4 Torr, 100 mA at >1 x 10-4 Torr, regulated to ±3%
- Degas Power20 Watts
Technical Specs
- TypeNude Tube Hot Cathode Sensor
- Installation OrientationAny
- Measurement Range1.0 x 10-10 - 1.0 x 10-2 Torr, 1.3 x 10-10 - 1.3 x 10-2 mbar, 1.3 x 10-8 - 1.3 Pascal
- Set Point Range5.0 x 10-10 - 9.5 x 10-3 Torr, 6.5 x 10-10 - 1.2 x 10-2 mbar, 6.5 x 10-8 - 1.2 Pascal
- Calibration GasAir/Nitrogen
- FilamentYttria-coated Iridium
- Fitting TypeISO-KF NW40
- ConnectorCustom D-sub to controller
- Bake Out Temperature150°C, 60°C with cable attached
- VoltagesFilament bias: +30 V, Grid: +180 V, Filament: +4.7 V at 1.8 A
- Exposed MaterialsNickel, Inconel x-750, 304 stainless steel, glass, tungsten, platinum
- X-ray Limit3 x 10-10 Torr
- Sensitivity9 Torr -1 (±20%)
- Emission Current1 mA at <1 x 10-4 Torr, 100 mA at >1 x 10-4 Torr, regulated to ±3%
- Degas Power20 Watts
Resources & Downloads
Drawings & CADs
Nude Tube Dimensional Drawing(55.8 kB, PDF)
Literature
274 Bayard-Alpert Type Ionization Vacuum Gauges(310.5 kB, PDF)