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    E+H差压变送器FMD78
    发布时间:2014-03-31 浏览量:4223

    产品描述

    差压变送器,带有金属测量膜片和毛细管膜片密封

    抗过载,带功能监测,具有HART, PROFIBUS PA 或FF基金会现场总线通信协议

     

    优点

    • 极高的可重复性和长期运行稳性
    • 高精度: ±0.075%
    • 量程比100:1,特殊要求可更高

    • 用于流量和差压监测,最高符合SIL3, 由TüV SüD根据IEC 61508 标准进行认证

    • HistoROM®/M-DAT 存储模块

    • 对测量元件和电子模块进行功能监测

    • 模块化设计,可以与差压、静压和压力测量仪表(Deltabar S, Deltapilot S, Cerabar S)的模块部件进行互换, 如:
      - 可更换的显示单元
      - 通用的压力和差压电子模块

    • 通过快速设定菜单进行快速调试

    • 现场菜单引导式操作

    • 广泛的自诊断功能

       

    应用领域

    Deltabar S差压变送器可用于解决以下测量问题:

    • 液体的物位、体积或质量测量

    • 通过多项国际认证

      技术参数

      Continuous / Liquids
      Pressure

       

      Measuring Principle Differential pressure
      Characteristic / Application Digital transmitter with metallic measuring diaphragms diaphragm seals and capillaries
      Modular transmitter
      Long term stability
      Enhanced safety via self diagnostic functions
      Secondary process barrier
      Supply / Communication 4...20 mA HART:
      10,5...45V DC
      Ex ia: 10,5...30V DC
      PROFIBUS PA /
      FOUDATION Fieldbus:
      9...32V DC
      Accuracy 0,075% + influence of diaphragm seal
      Long term stability 0,05% of URL/year
      Ambient temperature -40°C...85°C
      (-40°F...185°F)
      Process temperature -40°C...400°C
      (-40°F...662°F)
      Process pressure absolute / max. overpressure limit 160bar (2400 psi)
      Pressure measuring range 100mbar...40bar
      (1.5psi ... 600 psi)
      Main wetted parts Alloy C276
      316L
      Monel
      Tantalum
      Process connection Diaphragm seal (Pancakes, threads)
      Flanges (DIN, ANSI)
      Tri-Clamp ISO2852
      Hygienic connections
      Max. measurement distance 400m (1312ft) H2O
      Output 4...20 mA HART
      PROFIBUS PA
      FOUNDATION Fieldbus
      Certificates / Approvals ATEX
      FM
      CSA
      NEPSI
      IECEx
      SIL
      NACE
      GL marine
      WHG/ Overfill prevention
      EN10204-3.1
      3A

       
      Options HistoROM/M-Dat
      4-line digital display
      SS- or Aluminiumhousing
      Separate housing

       
      Application limits Measuring cell:
      Metal welded
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