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Resistance vacuum gauge Resistance vacuum gauge Item No.:  ZJ-52     ZJ-52 adopts the heater wire of minimum thermal capacity by stabilization  as vacuum sensing element,having the function of ambient temperature self-compensating and stive protection,possessing wide-range,fast response,antipollution,oxygen resistance,long life,steady performance,using at the low and medium vacuum measurement system of vacuum degree.     Parameter of ZJ-52       Measuring range of vacuum degree:1×105-3×10-1(Pa)       Filament material:tungsten(option of platinum wire or Ni-Cr wire)       Heater cold-resistance:86.6±1.7Ω(at the room temperature)       Heater temperature:40-300℃       Vacuum attended mode:φ15.5±0.5 DM-305 vacuum glass       Baking temperature:80℃

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