7FC Double Inverted Magnetron Cold Cathode Gauge - Vacuum Gauge

Part Number: 2-2146-052

The Televac 7FC cold cathode gauge (also called a vacuum pressure gauge or cold cathode ionization gauge) has an extremely wide measurement range from 10-11 Torr up to 10-2 Torr (making it an ultra-high-vacuum or UHV solution). This vacuum gauge makes indirect absolute pressure measurements by ionizing gas in the presence of a magnetic field. Unlike hot filament vacuum gauges, the 7FC cold cathode gauge is cleanable, contamination resistant, and isn’t as easily damaged by inrushes of gas.

The design of this vacuum gauge allows for bakeout without disassembly. The 7FC cold cathode ionization gauge can be operated by the Televac MX200 rack-mountable controller. Any vacuum controller will automatically operate the cold cathode to provide a full-range vacuum measurement solution when the 7FC is used in conjunction with rough vacuum sensors like the 2A or 4A. Active vacuum gauges can also be combined using the MX2A/MX4A and MX7B to provide full range vacuum measurement with the 7FC cold cathode ionization gauge.

Televac 7FC Cold Cathode Pressure Gauge (Vacuum Pressure Gauge) Features

  • Low cost vacuum gauge
  • Easily cleaned cold cathode gauge for extended sensor lifetime
  • Durable double inverted magnetron gauge construction
  • Reliable cold cathode ionization gauge technology
  • Contamination resistant, resistant to inrushes of gas, and cleanable
  • Mountable in any orientation
  • Interchangeable with 7E, 7F, 7FCS
  • Excellent customer support
7FC Double Inverted Magnetron Cleanable Cold CathodePart NumberPriceBuy
7FC Cold Cathode Sensor2-2146-052$708.75
7FC Coaxial CablesPart NumberPriceBuy
7FC Coaxial High Temp/200˚CPart NumberPriceBuy
Custom Length, Max 300'2-9842-000$315.00

7FC Triaxial Radiation Resistant CablesPart NumberPriceBuy
Custom Length, Max 300'2-9836-000$561.75

7FC Triaxial High Temp/200˚C CablesPart NumberPriceBuy
Operating Range 1*10-8 Torr to 1*10-2 Torr
Analog Output Controller dependent
Supply Voltage Controller dependent
Mounting Orientation Any
Calibration Medium Dry air or nitrogen
Overpressure 150 psi
Analog Output Resolution Controller dependent
Operating Temperature 0 °C to 50 °C
Storage Temperature -20 °C to 70 °C
Bakeout Temperature 200 °C
Response Time ≤ 10 ms
Accuracy 1*10-9 Torr to 1*10-2 Torr: ± .2 decade

Analog Output Behavior

Televac vacuum pressure gauge cold cathode pressure gauge output graph, 7F, The Fredericks Company, 215 947 2500

7E Double Inverted Magnetron Cold Cathode Sensor – This sensor has a measurement range from 1 × 10-8Torr 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 7E is resistant to inrushes of gas. The design of this sensor allows for easy disassembly, enabling quick cleaning and extended use. The 7E can be operated by several Televac controllers, including the MM200, MC300, and MP7ER. The MM200 and MC300 controllers automatically operate the cold cathode to provide a full-range vacuum measurement solution when the 7E is used in conjunction with rough vacuum sensors.

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.

MC300 Vacuum Sensor Controller – The MC300 controls up to two Televac thermocouple or convection rough vacuum sensors and an optional cold cathode or mini hot ion high-vacuum sensor. It features 4 relay set points and large, bright LED displays, making it easy to read from a distance.

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