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    E+H卫生型温度变送器TR44
    发布时间:2014-04-03 浏览量:4178

    产品描述

    一体化RTD热电阻,卫生型结构设计

    具有多种过程连接形式和延长颈类型

     

    • 高灵活性:模块化结构设计、标准接线端子块和用户自定义热电阻插入深度
    • 提供绝大多数常见的EHEDG认证卫生型过程连接,仪表的结构设计符合3A卫生型标准
    • 高精度测量:采用符合IEC 60751 (A级或更高等级)的Pt100温度传感器
    • 可满足防爆区中的测量要求:
      - 本安型仪表(Ex ia)
      - 无火花 (Ex nA)

     

    一体化温度变送器

    相比于不经过温度变送器,而直接接线的测量方式,Endress+Hauser的一体式温度变送器具有更高的测量精度和更高的测量可靠性。根据实际应用工况,用户可以自由选择下列信号输出模式和通信方式:

     

    • 4...20 mA模拟输出
    • HART®
    • PROFIBUS® PA
    • FF基金会现场总线

     

    应用领域

    • 可用于食品、制药等卫生领域和精细化工行业的测量

    • 温度测量范围: -50...250 °C

    • 承压能力可达 40 bar

    • 防护等级可达 IP 68

      技术参数

      Thermometer
       

      测量原理 Resistance Temperature Detector
      Characteristic / Application metric style
      modular temperature assembly
      hygienic design
      hygienic process connection
      with neck
      Terminal head TA20A - aluminium - cover with screws
      TA20B - plastics - screw cover
      TA20D - aluminium - hinged cover high
      TA20J - SS - deep-drawn w. or w/o. display
      TA20R - SS - machined w. screw cover
      TA20W - aluminium - cover w. snap fit
      TA21E - aluminium - screw cover w. chain
      Thermowell / protection tube without (not intended to use with thermowell)
      Insert / probe mineral insulated (MI), flexible
      Outer diameter protection tube 6,0 mm (0,24'')
      8,0 mm (0,31'')
      Max. immersion length on request up to 1.000,00 mm (39,37'')
      Material protection tube/thermowell 1.4435 (316L)
      Process connection hygienic:
      conical sealing system G1/2" (metal)
      conical sealing system M12x1,5 (metal)
      clamp connections acc. to ISO 2852 / DIN 32676
      clamp connections TRI-Clamp / Micro-Clamp
      screwed pipe joint acc. to DIN 11851
      screwed pipe joint acc. to DIN 11864-1
      Varivent
      SMS 1147/8
      G1" Liquiphant type M
      Ingold
      welded (cylindircal)
      welded (spherical)
      Tip shape straight
      reduced
      Surface roughness Ra 0,4 μm (15,7 μin.)
      0,8 μm (31,5 μin.)
      Operating temperature range PT 100:
      -50 °C ...200 °C
      (-58 °F ...392 °F)
      Max. process pressure (static) at 20 °C: 50 bar (725 psi)
      Accuracy class A acc. to IEC 60751
      1/3 DIN class B acc. to IEC 60751
      Response time depending on configuration
      t50 = 5 s
      t90 = 13 s
      Integration head transmitter yes (4 … 20 mA; HART; PROFIBUS PA; FOUNDATION FIELDBUS)
      Ex - approvals ATEX
      Certification Gost Metrology
      FDA
      EHEDG
      3A
      SIL (transmitter only)
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