Nude Bayard-Alpert Ionization Vacuum Gauge, <3 x 10-11 - 1 x 10-3 Torr, Dual Thoria-coated Iridium Filaments, 2.75 in. CF, Pin Guard

Technical Specs

  • Type
    Vacuum Gauge
  • Sensor Type
    Bayard-Alpert Hot Cathode
  • Vacuum Pressure Range
    3.0 x 10-11 to 0.001 Torr
  • Accuracy
    ±20% (typical)
  • Orientation
    Any
  • Flange Type
    CF with Pin Guard
  • Flange Size
    2.75 in.
  • Collector
    Tungsten, 0.005 in. diameter
  • Grid
    Refractory Metals
  • Length
    4.125 in. (105 mm)
  • Sensitivity
    25/Torr
  • X-ray Limit
    2 x 10-11 Torr
  • Electron Bombardment Degas
    40 Watts maximum
  • Collector Potential
    0 V
  • Grid Potential
    +180 VDC
  • Filament
    Dual Thoria-coated Iridium
  • Filament Heating Current
    2.5 - 3.5 Amps
  • Filament Heating Voltage
    3 - 5 V
  • Filament Voltage Potential
    +30 VDC
  • Maximum Bakeout Temperature
    450°C