Trafag,8773,SF6氣體密度繼電器,SF6氣體密度變送器,SF6氣體密度控制器

    Trafag,8773,SF6氣體密度繼電器,SF6氣體密度變送器,SF6氣體密度控制器

    主要特點:

    測量原理:石英晶振測量

    測量范圍:0...60 kg SF6 /m3  10 ... 253 Hz

    輸出:數字信號或脈沖電流

    可連續測量溫度和密度

    密度精度等級:1.0

    溫度精度等級:正常溫度±2°C    -40...85°C: ±3°C

    電源電壓:15 （10...20） VDC

   環境條件 工作溫度：-40...+70°C
              介質溫度：-40 ...+70°C
              存儲溫度：-40 ...+85°C

    工作壓力:20BAR

    Trafag,8773,SF6氣體密度繼電器,SF6氣體密度變送器,SF6氣體密度控制器

    主要特色

    使用輸出信號無漂移

    防護等級IP65

    無需維護

    高抗振性和防沖擊性

    緊湊型設計

    適合于戶外使用

    隨壓力變化響應時間<10ms

   Application
    High voltage technology

   Main characteristics

    SF6 Density Sensor
?  Principle:       Oscillating quarz measurement
?  Measuring range: 0...60 kg SF6 /m3
                     10 ... 253 Hz
?  Output
      Digital:       current pulses onto supply current
?  Accuracy:        ±1% of measured value and ±1% of range
 

    The gas density sensor Trafag 8773 has been specially designed for surveying insulation gases.
    The gas density is measured with an oscillating quarz with excellent long term stability. A second quarz in vacuum is used to compensate for a
possible temperature error. The output signal is a pulse train modulated onto the supply current.
    The measured density is propotional to the pulse frequency.

    Additionally the temperature can be measured over the pulse width of the frequency signal.

    Main features

?  Continuous measurement of density and temperature
?  long term drift free output signal
?  Protection IP65
?  No maintenance
?  Compact
?  Vibration and shock proof
?  Suitable for outdoor usage
?  Response time <10ms （with pressure changes）

   Ordering information

   Specifications

    Main characteristics
    Principle:       Oscillating quarz measurement
    Measuring range: 0...60 kg SF6 /m3
                     10 ... 253 Hz
    Output
      Digital: current pulses onto supply current

   Accuracy
   Accuracy:         ±1% of measured value and ±1% of range
   Repeatability:    ±0.2% of measured value
   Temperature signal
      at ambient temperature ±2°C
      at -40...85°C: ±3°C

    Electrical data
    Output signal
      Digital:        current pulses
      Density signal: pulse frequency
                      10...253 Hz （range
                      0...51.22kg SF6/m3）
    Supply voltage:   15 （10...20） VDC
    Ground:           at gas connection of sensor
    Reaction time:    <10 ms （with pressure changes）
    Temperature signal: Pulse width 2188 ... 2565 ... 2975ms
                       （=Temp. -40...23...85°C）

   Environmental conditions
    Operating temperature:    -40... +70°C
    Media temperature:        -40... +70°C
    Storage temp.:            -40... +85°C
    Operating pressure:       20 bar
    Humidity:                 suitable for outdoor usage;
                              55°C and 98% relative
    Protection:               IP65
    Vibration:                15 g （max. 6 mm）,
                              （5...2000 Hz）
    Chock:                    100g/ 6 ms

   EMC Protection
    Emission:                 EN /IEC 61000-4-4
    Immunity:                 EN /IEC 61000-4-5
   

   Mechanical data
    Material
      Housing:                AlMgSi1
      Electr. connection:     Cable with connecteur
    Montage:                  any position
    Weight:                   approx. 200...400 g

   Functional diagram

   
    Output Signal

    Dimensions

咨詢訂購Trafag,8773,SF6氣體密度繼電器,SF6氣體密度變送器,SF6氣體密度控