3F Mini Bayard-Alpert Hot Ion Ultra-High Vacuum Gauge

The 3F mini Bayard-Alpert hot cathode ionization gauge indirectly measures absolute pressure by ionizing gas in the presence of an electric field. The design of this sensor allows for an extended range of measurement and bakeout temperatures up to 200° C. 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. It can be operated by several Televac controllers, including the MM200 or MC300 rack mountable controllers. 3F mini Bayard-Alpert hot cathode ionization gauge is well suited for applications such as semiconductor, thin film deposition and coating process, cryogenics and industrial gases etc.