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2400 Philmont Ave. PO Box 662 Huntingdon Valley, PA 19006 U.S.A. Phone: (215) 938-4400 Fax: (215) 947-7464 Email: techin@etigauges.com

Nude Ionization Gauge Type 8130, 8130T, 8150 and 8150T The ETI Nude Ionization Gauge is a high-sensitivity gauge covering the vacuum range of 1 x 10-3 to 2 x 10-11 Torr (Argon). This tube features replaceable filaments, dual Tungsten or single iridium, and a small diameter-cage tantalum grid on platinum-clad, molybdenum support rods. A .005"-diameter collector is used. This results in a low X-ray limit, sensitive tube, capable of being baked out to 450° C for those applications requiring high-temperature processing. 8130 Physical Data Connection 2-3/4" Conflat or KF40 flange Envelope None Mounting Position Vertical Collector .005" Tungsten Filament Replaceable Thoria-Coated Iridium or Dual Tungsten (8130)** High Stability Geometry* Available in Single Iridium Only Grid Tantalum and Pt/Moly support squirrel cage *See Special Gauges **Also available in Dual Irridium Operating Data Sensitivity for N2 25/Torr X-ray limit 2 x 10-11 Torr Operating Pressure 2 x 10-11 to 1 x 10-3 Torr Electron Bombardment De-gas 40 Watts @ 500 volts Resistance Heated De-gas n/a Bake-out Temperature 450° C Recommended Electrical Operating Parameters Collector Potential 0 volts Shield Potential n/a Grid Potential 150 to 180 volts Filament Current 4 to 6 amps Filament Voltage 3 to 5 volts Filament Potential to Ground 30 volts 8130 Single Iridium 8130T Dual Tungsten 8150 Dual Tungsten/Iridium Pin #1 Grid Pin #1 Grid 8150 provides modified pin geometry to mate with unique connector. Call factory for details. Pin #2 Grid Pin #2 Grid Pin #3 Collector Pin #3 Collector Pin #4 Filament Pin #4 Filament #1 Pin #5 Filament Pin #5 Common Pin #6 Not Used Pin #6 Filament #2   About the Company | ETI Gauges: Principles of Operation | Ionization Gauges | Special ETI Gauges | OEM and Custom Designs Configurations of Standard Gauges | Earlier Model Gauges | Replacement Filament Assemblies | ETI Custom Filaments | ETI Stems | | Contact ETI | Return Home | ©1999 ETI