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. This sensor can be controlled by a Televac MM200 gauge controller.

 

Specifications:

 

Connection: 2-3/4", 1" Conflat or KF 40 flange

Envelope: None

Mounting Position: Vertical

Collector: .005" Tungsten

Filament: Replaceable Thoria-coated Iridium or Dual Tungsten (8130)

Grid: Tantalum and Pr/Moly support squirrel cage

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 Degas: 40 Watts @ 500 volts

Resistance Heated Degas: n/a

Bake-out Temperature: 450°C