Trafag SF6 Gas Density Monitor 8710,8720,8730,8740

    Switching differential typ.
       Microswitch *0: <*5 kPa
       Microswitch *8/*3: <*0 kPa
    Accuracy of the reference Miroswitch from the reference isochore (see page 4)
      **0...**0°C: <*0 kPa(Filling pressure: <**0 kPa)
      **0...**0°C: <*2 kPa（Filling pressure: <1 MPa)

    Microswitch
    Rating:                   see table
    Resistance of insulation: > 2 MΩ
    Dielectric strength:      2 kV terminal ground
    Life time (mechanical)
       Microswitch *0: 1 Mio. cycles
       Microswitch *8/*3: *0 Mio. cycles
    Max. difference from the lowest tothe highest

       switching point: **0kPa

 

    Electrical connection
    Screwed cable gland:  see accessories
    Terminal screw:       0.2...2.5 mm2
   

    Environmental conditions
    Ambient temperatur: **0....**0°C
        With Accessories *8/*9: **5....**0°C
    Media temperature **0....**0°C
        With Accessories *8/*9: **5....**0°C
    Protection: see page 5
    Humidity: max. *5% relative
    Vibration
        Min. Difference from switch point: 5 kPa
        *0...*0 Hz: 4 g
    Shock: *0g/ *1ms

 

    Security
    Leakage of Reference
    chamber: < 0.5 kPa/ year
             (5·****0 kPa·I·s*1)
    Service: none,
             switch point checking after 5 years
    Reference chamber leakage tests: With Helium gas in vacuum process and integral leakage
             test in overpressure process

 

    Mechanical data
    Material
      Sensor:
          Housing: 1.***5 (AISI**6L)
          Filling: G as
      Housing: A lSi*0Mg,weatherproof painting
      Base plate: A lMgSi1, anodized
    Screwed cable gland: brass nickel plated
    Weight: ~ **0 g