HXT  Fieldbus Type A现场总线：Fieldbus现场总线是一种开放的中性现场总线标准，主要面向过程自动化的要求。它是一个功能完整的现场总线解决方案，适用于温度变送器、压力变送器或阀门致动器等领域。我们区分了规范H1（31.25 kbit/s）和HSE（100 Mbit/s）。石化、化工或食品饮料行业等分支机构看到了优势并利用了基础现场总线技术。

HXT fieldbus type a fieldbus: fieldbus is an open neutral fieldbus standard, which mainly faces the requirements of process automation. It is a fully functional fieldbus solution for temperature transmitters, pressure transmitters or valve actuators. We distinguish between specification H1 (31.25 kbit/s) and HSE (100 mbit/s). Branches in the petrochemical, chemical or food and beverage industries see advantages and make use of basic fieldbus technology.

• 导体

  绞合裸铜导体                               

• 绝缘1                        

  PVC

• 绝缘2

  XLPE

• 芯线颜色                                 

  标准

• 屏蔽材质

  铝箔+镀锡铜编织屏蔽

• 外护套

  PVC

• 外护套颜色

  橙色 （可根据客户要求定制）

Structure

• conductor

  Stranded bare copper conductor

• Insulation 1

  PVC

• Insulation 2

  XLPE

• Core wire color

  standard

• Shielding material

  Aluminum foil + tinned copper braided shield

• Outer sheath

  PVC

• Color of outer sheath

  Orange (customized according to customer requirements)

• 特性阻抗

  100 Ohm ± 20 Ohm

• 互电容

  65,0 nF/km nom. 

• 温度范围

  固定应用：

  PVC： -20°C ~105°C

• 阻燃标准

  FT4

• 外径

  7.9±0.3mm

Technical Parameters

• characteristic impedance 

  100 Ohm ± 20 Ohm

• Mutual capacitance

  65,0 nF/km nom. 

• temperature range 

  Fixed applications:

  PVC： -20°C ~105°C

• Flame retardant standard

  FT4

• external diameter

  7.9±0.3mm