Televac® 7E Double Inverted Magnetron Cleanable Cold Cathode Vacuum Gauge

Part Numbers: 2-2142-013, 2-2142-030, 2-2142-031, 2-2142-032, 2-2142-052

Compatible With: MX200, MX200 EthernetIP

Features and Benefits:

  • Low cost vacuum gauge
  • Easily cleaned cold cathode gauge for extended sensor lifetime
  • Durable Penning ionization gauge construction
  • Reliable cold cathode ionization gauge technology
  • Contamination resistant, resistant to inrushes of gas, and cleanable
  • Mountable in any orientation
  • Interchangeable with 7F, 7FC, 7FCS
  • Excellent customer support

The Televac® 7E cold cathode gauge (also called a vacuum pressure gauge or cold cathode ionization gauge) has a measurement range from 10-8 Torr up to 10-2 Torr. This vacuum gauge makes indirect absolute pressure measurements by ionizing gas in the presence of a magnetic field. Unlike hot filament vacuum gauges, the 7E 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 easy disassembly, enabling quick cleaning and extended use. The 7E cold cathode ionization gauge can be operated by using 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 7E is used in conjunction with rough vacuum sensors like the 2A thermocouple vacuum gauge or 4A convection vacuum gauge.

Product Description
1” Straight Stainless Steel
1” Straight Stainless Steel
PN: 2-2142-013
NW16/KF16 Stainless Steel
NW16/KF16 Stainless Steel
PN: 2-2142-030
NW25/KF25 Stainless Steel
NW25/KF25 Stainless Steel
PN: 2-2142-031
NW40/KF40 Stainless Steel
NW40/KF40 Stainless Steel
PN: 2-2142-032
CF40/2.75" CF-F Stainless Steel
PN: 2-2142-052

Replacement Parts

Product Description
7E Anode Assembly
7E Anode Assembly
PN: 2-7900-075
PN: 6-4210-260
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 150 °C
Response Time ≤ 10 ms
Accuracy 1*10-7 Torr to 1*10-2 Torr: ± .2 decade

Analog Output Behavior

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