3F Mini BA Hot Ion Ultra-High Vacuum Gauge (UHV)

3451-8305-25, 3451-8305-35, and 3452-8306-05

The Televac 3F Mini BA Hot Cathode Ionization UHV gauge maximizes performance with proven accuracy and unmatched durability in high vacuums. The miniature sensor’s rugged all-metal construction is ideal for most applications, with the primary enclosure and many of the internal elements fabricated of 304 stainless steel. The dual filaments are yttria-coated iridium and are individually supported to provide uniform output over variations in temperature and age and exhibit less calibration error. Coated iridium filaments tend to withstand pressure bursts with a robustness not possible with lesser materials. The typical user should experience a filament lifetime of 10,000 hours. The precision ion collector is 0.004” diameter, decreasing the x-ray limit of the gauge.

3F Mini BA Hot Ion UHVPart NumberPriceBuy
DN-40 CF3451-8305-25$320.00
KF25 Flange3451-8305-35$295.00
1” tube3452-8306-05$295.00
3F Mini BA Hot Ion CablePart NumberPriceBuy
Custom length, maximum 75'2-9854-000$215.00

Measurement Range 1*10‐2 to 1*10‐10 Torr
Sensitivity for Nitrogen 10/Torr
Bakeout Temperature 200 °C
Operating Temp 0 to 40 °C
X‐Ray Limit <1 x 10-10 Torr
Filament Emission Current .01, 0.1, 1.0 mA or Auto
Filament Bias Potential +30 V +/‐ 0.3%
Grid Potential +180 V +/‐ 0.3%
Filament Heating Voltage 1.5 V (2.5 V Max.)
Filament Heating Current 2 A (3 A max.)
Mounting Orientation Any
Degas Power 5 W e-beam
MM200 MC300 7F Cold Cathode 7FCS Cold Cathode
Measurement Range 1*10-11 to 7600 Torr 1*10-11 to 1000 Torr 1*10-11 to 1*10-2 Torr 1*10-11 to 1*10-2 Torr
Communications RS-232/RS-485 None None None
Analog Output 0 to 10 V DC (1 per sensor) 0 to 10 V DC (1 per sensor) Controller dependent Controller dependent
Programmable Set Points 0, 4, or 8 4 None None
Cryogenics and industrial gases
Thin film deposition and coating processes
Analytical Instruments
Decorative Coating
Electron Microscopy
Environmental Simulation
High Energy Physics
Illumination Product Mfg.
Magnetic Media Mfg.
Molecular Beam Epitaxy
Optical & Functional Coating
Physical Vapor Deposition
Surface Science
Thermal Processing