by Ava Faridi

The VIM-1 spinning rotor gauge is based on a magnetically levitated spinning steel ball, where the deceleration time caused by the friction between the gas molecules and the steel ball is measured to determine the pressure. The low-cost corrosion resistant and passive sensor element can be used to verify and test permanently sealed vacuum cavities like vacuum insulation panels and isolation vacuum in liquid gas storage tanks. A spinning rotor gauge sensor has no ionization source and heated filament and only stainless steel is exposed to the vacuum gas. The inert properties of the spinning rotor gauge sensor makes it suitable for rate-of-rise leak testing and vacuum chamber outgassing characterization.



  • Measurement range from 1.0E-6 to 10 mbar (7.5E-7 to 7.5 Torr)
  • Easy to use by one-button operation
  • Excellent long-term stability
  • Digital RS-232 or RS-485 interface
  • Chemical and corrosion resistant sensor
  • Bakeable all-metal sensor design
  • Low-cost disposable sensor
  • Passive high vacuum sensor without ion- or heat source 

VIM-1-Nano Vacuum Australia and New Zealand

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