The structure of ZJ-2 is a typical dynatron type,adopting tungsten filament,using at the medium and high vacuum measurement system of vacuum degree.
Parameter of ZJ-2
Measuring range of vacuum degree:1.0×10-1-1×10-5(Pa)
Filament voltage to ground:25V
Grid electrode voltage to ground:200V
Vacuum gauge constant:0.15±15%Pa-1
Vacuum attended mode:φ15.5±0.5 DM-305 vacuum glass