ZJ-54D Metal thermocouple vacuum gauge tube

This type of vacuum gauge adopted smaller thermal capacity nickel chromium - constantan as a heating wire and thermocouple wire with stabilizing treatment. With automatic enviroment temperature compensation and dust protection, has a simple structure, wide range, fast response, anti-pollution, anti-oxidation, small drift, long life, stable performance,reasonble  price and so on. Especially for low vacuum measurement. This type of vacuum guage can be used with the ZJ-53 glass thermocouple regulated interchangeable.

Main technical parameters:

1.       Measurement range: 4 × 10² ~ 1 × 10^-1Pa

2.       Heating current: 28 ± 1.5mA

3.       Hot wire cold resistance: 9.5 ± 1Ω (23 ± 3 ℃)

4.       Hot filament temperature: 40 ~ 150 ℃

5.       Fragmented nature: no more than ± 20%

6.       Vacuum connections form and baking temperature:

      Φ15 ± 0.1 metal                       80 ℃

      KF10 quick release flange        80 ℃

      KF16 quick release flange        80 ℃

      KF25 quick release flange        80 ℃

      KF40 quick release flange        80 ℃

      CF16  ultra flange                    450 ℃

      CF25  ultra flange                    450 ℃ 

      CF35  ultra flange                    450 ℃