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 750torr).
Two main variants are available:
- ITR 90 with single hot cathode filament
- ITR 200 with dual filaments to increase the lifespan via inbuilt redundancy. It will automatically switch filaments in the event of failure and indicate that a filament has failed. To further increase the gauge life, it is possible to run a degas program which can re-invigorate the filaments performance.
With both types of IONIVAC ITR we have analogue, Digital and Profibus interfaces available, as well as optional integrated displays for local pressure displays.
When carrying out service on these gauges, the calibration of the sensor is kept on the gauge head, so when replacing the tube, the gauge is pre-calibrated and will be accurate immediately rather than requiring any zero/atmosphere calibration.