TELEVAC 7F Double Inverted Magnetron Cold Cathode

The TELEVAC 7F cold cathode sensor has a measurement range from 1 × 10-11 Torr up to 1 × 10-2 Torr. It indirectly measures absolute pressure by ionizing gas in the presence of a magnetic field. Unlike hot filament sensors, the 7F is resistant to inrushes of gas. The design of this sensor allows for an extended range of measurement and high bakeout temperatures up to 400 °C. The 7F can be operated by several TELEVAC controllers, including the MM200 or MC300 rack-mountable controllers and the MP7FR. The MM200 and MC300 controllers automatically operate the cold cathode to provide a full-range vacuum measurement solution when the 7F is used in conjunction with rough vacuum sensors.

The TELEVAC 7F Double Inverted Magnetron Cold Cathode Features

  • Competitively priced
  • Compact design
  • Minimal stray magnetic field
  • Resistant to inrushes of gas
  • High bakeout temperature
  • Interchangeable with 7E, 7FC, 7FCS
  • Excellent customer support
  • Designed and manufactured in the USA


Operating Range1 × 10-11 Torr to 1 × 10-2 Torr
Analog OutputController dependent
Supply VoltageController dependent
Mounting OrientationAny
Calibration MediumDry air or nitrogen
Overpressure150 psi
Analog Output ResolutionController dependent
Operating Temperature0 °C to 50 °C
Storage Temperature-20 °C to 70 °C
Bakeout Temperature400 °C
Response Time≤ 10 ms
Accuracy1 × 10-11 Torr to 1 × 10-2 Torr

Analog Output Behavior



7F Cold Cathode 2.75” CF (DN40 ISO-CF-F)2-2144-052

7F Double Inverted Magnetron Cold Cathode Sensor – This sensor has a measurement range from 1 × 10-11Torr up to 1 × 10-2 Torr. It indirectly measures absolute pressure by ionizing gas in the presence of a magnetic field. Unlike hot filament sensors, the 7F is resistant to inrushes of gas. The design of this sensor allows for an extended range of measurement and high bakeout temperatures up to 400 °C. The 7F can be operated by several TELEVAC controllers, including the MM200, MC300, and MP7FR. The MM200 and MC300 controllers automatically operate the cold cathode to provide a full-range vacuum measurement solution when the 7F is used in conjunction with rough vacuum sensors.

MP7ER Active Gauge – This gauge measures high vacuum from 1 × 10-8 Torr up to 1 × 10-2 Torr utilizing a double inverted magnetron sensor. It has a linear or logarithmic 0 V to 10 V analog output with a relay set point and an LED display of pressure.

MM200 Vacuum Sensor Controller – The MM200 controls any TELEVAC vacuum sensor including cold cathode, convection, diaphragm, hot ion, and thermocouple sensors. It also has optional features including up to 8 relay set points and RS-232/RS-485 communications. The large, bright LED display makes it easy to read from a distance. The MM200 is a modular unit, allowing customers to choose a vacuum sensing solution specific to their needs.