Our IONIVAC gauges series, whether passive (IE) or active (ITR) offers the ability to measure into ultra high vacuum. This enables detailed tracking of experiments, and control of the variables in processes.
IONIVAC hot cathode gauges work by having a hot cathode emit electrons which impinge on an anode. The measured gas is thus ionized. The resulting positive ion current is detected through the third electrode and this current is used as the signal which is proportional to the pressure.
The hot cathode ionization sensors offer a wide measurement range of 10-12 to 10-1 mbar (0.75·10-10 to 0.75·10-1 Torr) depending on the type of hot cathode technology used.
Optimized combination transmitter
The IONIVAC ITR is an optimized combination transmitter. The combination of a hot cathode ionisation sensor (utilising the Bayard Alpert method of hot cathode ionisation) and a Pirani sensor enables vacuum pressure measurements from 5 . 10-10 to 1000 mbar (3.75 . 10-10 to 750 torr).
Two main variants are available:
Top of the range for UHV measurement
Our IONIVAC IE series gauges are the “Rolls Royce” of ultra high vacuum measurement, with their ultra low base pressure reading and high levels of accuracy.
Working in tandem with our passive gauge controllers, these are used in environments requiring detailed pressure readings at the lowest levels.
The passive IONIVAC IE sensors use the hot cathode ionization technology to measure to the lowest pressures.