It is Mini-Convectron Gauge.
●Similar to Pirani gauge.
●Uses convection cooling to extend measurement to 1000 Torr.
●Large volume allows convection currents to develop.
●Kovar wire wound around mandrel acts as temperature compensator which decreases dependence on room temperature and increases accuracy above 10 Torr.
●Range: 10-3 Torr to 1000 Torr
●Original version had .375 to 5.659 Vdc analog output; 0 or 2 setpoints
●Linear version available
●4 mA to 20 mA version available as custom product
●Computer interfaces available: RS422/RS485, LonWorks
●DeviceNet being developed currently
●Newest version released with digital display
●Range: 1*10-3 to 1000 Torr (resolvable to 1*10-4 Torr)
●Reproducibility: Each tube is individually calibrated
(±1 mTorr at vacuum; ±10 Torr at atmosphere)
●Accuracy: ±2% of reading over most of the range
(typically ±8% between 10 and 200 Torr)
●Fast response time: Electronic feedback loop
●Stability: Gold plated tungsten sensor helps prevent calibration shift
●Industry standard: Used by many OEM customers