The structure of ZJ-27 is a typical dynatron type,adopting precious metal oxide cathode,possessing antioxidation,instantaneous over-atmosphere shock capacity,stability,long life,using at the medium and high vacuum measurement system of vacuum degree.
Parameter of ZJ-27
Measuring range of vacuum degree:1.0×100-2×10-5(Pa)
Accelerating stage voltage to ground:225V
Cathode voltage to ground:25V
Electron collector voltage to ground:0V
Vacuum gauge constant:0.15±15%Pa-1
Vacuum attended mode:φ15.5±0.5 DM-305 vacuum glass