The Active Inverted Magnetron Gauges (AIM) combine the gauge-head and controller in one compact Active unit. These gauges have proved to be rugged and reliable in a wide range of applications ranging from scientific instruments to industrial processes.

Features and Benefits

  • Drive electronics combined in the gauge head which reduces the system cost and saves valuable rack space
  • Wide-ranging, regulated, internal power supply which runs from standard d.c. power supplies of +13.5 to +36 V with a good tolerance to voltage fluctuations
  • Standard analog output of 0 to +10 V d.c. and gauge identifier allowing easy interface with a computer or plc and fault output indication
  • Low output impedance and integral Faraday shield provides high level of noise immunity and permits long cable runs (up to 100 m)
  • Interchangeable body tube allows for rapid tube replacement without pre-calibration
  • Electrode service kit allows user cleaning and maintenance
  • The Unique striker design ensures rapid striking even at high vacuum or in contaminating conditions
  • CSA, C/US approved


All vacuum applications requiring rugged and reliable pressure indication in the range 1 x 10-2 to 1 x 10-8 mbar. Typical processes range from general vacuum through industrial coaters and furnaces to scientific instruments and semicon.
Technical data  
Pressure Range  
   AIM-S 10-2 to 10-8 mbar
   AIM-X 10-2 to 10-9 mbar
Accuracy* Typically ±30%
Maximum overpressure 10 bar absolute (145 psi)
   Power supply +13.5 to +36 V DC (max 1 V ripple)
   Power consumption 2 W Maximum
   Output signal 2 to 10 V DC
Set point Open collector transistor
   Maximum voltage 40V DC
   Current 100 mA max
Temperature range  
   Operating +5 to +60°C
   Storage +0 to +70°C
Materials exposed to vacuum  
   NW25 versions Stainless steel 304 & 316 & 347, fluoroelastomer, glass
   DN40CF versions Stainless steel 304 & 316 & 347, copper, ceramic
Internal volume 26 cm3
Weight 0.81 kg
External interface connector 8-way FCC68/RJ45 socket
Vacuum fitting NW25
   Electronic design EN 61010-1
   Electromagnetic compatibility EN 61326 (Class B Emissions)
   Flame retardant casing UL94
   Enclosure rating IP40

*Accuracy is reduced at the limits of the measuring range