Televac MP7FR Cold Cathode

2-7950-XYY and 2-7970-XYY

The Televac MP7FR Active UHV Gauge utilizes an easily replaceable Televac 7F double inverted magnetron cold cathode vacuum sensor. It has a variety of features including a wide range of measurement from 1×10-11 Torr to 1×10-2 Torr, a programmable set point, a factory settable analog output, and an LED display. This unit indirectly measures absolute pressure by ionizing gas in the presence of a magnetic field. Unlike hot ion sensors, this unit is resistant to inrushes of gas. The design allows for easy disassembly for replacement of the sensor.

The Televac MP7FR Features

  • Compact design
  • Mountable in any orientation
  • Minimal stray magnetic field
  • Superior unit-to-unit performance
  • Excellent customer support
  • Designed and manufactured in the United States of America
Operating Range 1×10-11 Torr to 1×10-2 Torr
Communications N/A
Analog Output 0 V to 10 V DC
Programmable Set Points 1
Set Point Type Relay
Supply Voltage 24 V DC
Maximum Power 6 W
Calibration Medium Dry air or nitrogen
Overpressure 150 psi
Digital Output Resolution 2 significant digits with exponent
Operating Temperature 0 °C to 50 °C
Storage Temperature -20 °C to 60 °C
Bakeout Temperature 150 °C (electronics removed)
400 °C (electronics and magnets removed)
Display Readable Distance 3 m (10 ft)
1×10-7 Torr to 1×10-2 Torr ±0.2 decade
Analog Output ±5 mV
MP7FR Cold Cathode Active Gauge Logarithmic Output
10-10 to 10-2 (0 to 8 VDC) X = 1
10-11 to 10-2 (0 to 9 VDC) X = 3
MP7FR Cold Cathode Active Gauge Part Number
2.75” CF (DN40 ISO-CF-F) Stainless Steel 2-7970-X52
Replacement Sensor Part Number
2.75” CF (DN40 ISO-CF-F) 2-2144-052
D-Sub 9 Pin Cable (flying leads terminated) Part Number
10 ft (3 m) 2-9852-010
20 ft (6 m) 2-9852-020
35 ft (11 m) 2-9852-035
50 ft (15 m) 2-9852-050
Wall Power Supply Part Number
Type A (USA); 100-240 V AC/47-63 Hz 2-7900-093

MX4A Active Gauge – The MX4A utilizes an easily replaceable Televac 4A convection vacuum sensor. It has a variety of features including a wide range of measurement from 1 × 10-4 Torr up to 1000 Torr, RS-485 communications, two programmable set points, and a selectable analog output. The bright OLED display makes it easy to read from a distance. Options can be set from four capacitive touch controls located on the top of the unit or through RS-485 communications. The extensive selection of fittings, simplicity of use, ease of sensor replacement, and competitive cost make this unit an excellent choice for a variety of vacuum applications.

MP7ER Active Gauge – This gauge measures high vacuum from 1 × 10-8 Torr to 1 × 10-2 Torr utilizing a cleanable 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.