TELEVAC 2A NASA Mini Thermocouple Vacuum Sensor

The TELEVAC 2A NASA Mini thermocouple sensor has a measurement range from 1 × 10-3 Torr up to 20 Torr. It indirectly measures absolute pressure by detecting the thermal dissipation of a filament. It can withstand high temperature bakeouts up to 400 °C. It also has less than 25% of the internal volume of the TELEVAC 2A vacuum sensor. The 2A NASA Mini can be operated by several TELEVAC controllers, including the MM200, MC300, B2A, Compact 2A, Vacuguard, and MV2A.

The TELEVAC 2A NASA Mini Features

  • Designed and manufactured to NASA specifications
  • Reliable, high-quality vacuum indication and performance
  • Rugged and simple construction
  • Compact design
  • Operation in any physical orientation
  • No calibration required
  • Excellent customer support
  • Designed and manufactured in the USA
Operating Range 1 × 10-3 Torr to 20 Torr
Analog Output Controller dependent
Supply Voltage Controller dependent
Maximum Voltage 5 V
Maximum Power 55 mW
Maximum Filament Temperature 250 °C
Mounting Orientation Any
Calibration Medium Dry air or nitrogen
Overpressure 125 psi
Analog Output Resolution Controller dependent
Operating Temperature -54 °C to 93 °C
Storage Temperature -54 °C to 93 °C
Bakeout Temperature 400 °C
Response Time ≤ 1 s
Accuracy
1 mTorr to 10 mTorr ±1 mTorr
10 mTorr to 100 mTorr ±10% of reading
100 Torr to 1 Torr ±20% of reading
1 Torr to 20 Torr Indication only
Analog Output ±10 mV

Analog Output Behavior



2A NASA Mini Sensor 1/8” NPT Stainless Steel2-2100-31

2A VacuMini Thermocouple Sensor – The VacuMini is a commercial version of TELEVAC’s 2A NASA sensor. This thermocouple sensor has a measurement range from 1 × 10-3 Torr up to 20 Torr. It indirectly measures absolute pressure by detecting the thermal dissipation of a filament. It includes a tethered cap that provides IP67 protection for the recessed electrical pins. It also has less than 25% of the internal volume of the TELEVAC 2A vacuum sensor. The VacuMini can be operated by several TELEVAC controllers, including the MM200, MC300, B2A, Compact 2A, Vacuguard, and MV2A.

4A Convection Sensor – The 4A convection sensor has a measurement range from 1 × 10-4 Torr up to 1000 Torr. The sensor features a rapid response time when compared to typical thermal sensors. It indirectly measures absolute pressure by detecting the thermal dissipation of a filament. The 4A can be operated by several TELEVAC controllers, including the MM200, MC300, and MX4A.

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.