EE23

基础型工业用温湿度变送器

EE23系列是专为工业和气候控制室行业应用而研发的一款成本低、可靠性高的温湿度变送器,测量范围高达-40...180℃。 其不仅可以精密测量相对湿度(RH)和温度(T),还可计算露点温度(Td)和霜点温度(Tf)。

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EE23系列温湿度变送器有墙面型、管道型、分体探头型以及微型分体探头型多种安装方式可选择,模块化的设计结构便于现场安装、接线、更换探头及维护。

测量数据可通过两路模拟信号或报警信号输出,并可在显示屏显示出来。E+E公司先进的薄膜技术工艺制造的高端湿敏元件使变送器获得了优越的测量性能。

用户可通过电路板上的按钮或者校准软件对变送器的相对湿度和温度进行快速的两点校准。

典型应用

  • 工业过程控制
  • 高端气候控制室

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Key Features EE23

  • 温度范围 -40 ... 180°C 
  • 模拟输出和报警输出
  • IP65 / NEMA 4 
  • LCD显示屏
  • 内置供电模块100...240V AC, 50/60Hz
  • 敏感元件镀膜保护,可有效地避免灰尘污染
  • 多种过滤帽可选
  • 用户组态和校准

技术资料 EE23

  • 0...100% RH
    -40...180 °C

    测量范围
  • ±1.3% RH
    ±0.2 °C

    精度
  • 0-5/10 V, 0/4-20mA

    输出
  • 24 V DC

    供电电源

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EE23 配件

  • HA010101

    Membrane filter

    Construction

    Material: PC
    Filter: PTFE membrane
    Pores size: 1 µm
    Length: 34mm (1.34")

    Features

    Very good protection against fine dust

    T range: -40...80°C (-40...176°F)
    Response time t10/90: 15s

    Typical applications

    Building automation
    Dusty environment

     

    Suitable for Products:

EE23 FAQ

  • How can I clean the humidity sensing element?

  • How can I clean the filter cap of a humidity measuring device?

    How can I clean the filter cap of a humidity measuring device?

     

  • When does coating help?

    The E+E propritary Coating helps in dirty, dusty and corrosive environment. salts, off-shore applications). It improves the sensor’s long term stability in dusty, dirty or oily applications by preventing stray impedances caused by deposits on the active sensor surface and on its connecting leads.

     

  • When does coating not help?

    Coating does not help again chemicals in gazeous form. Contact an E+E sales representative for details on the influence of certain chemicals onto the humidity sensing elements.

     

  • What is the influence of coating on the response time?

    Response time of a humidity sensor protected by the E+E proprietary coating is slightly longer than the response time without coating. Please see the data sheet of the specific sensor.

     

  • The probe of the RH sensor is installed into separation wall and seems to be out of specs. Why?

    Temperature gradients along the sensing probes lead to relevant measurement errors. Whenever possible, install the entire probe inside the space to be monitored. If the probe is installed into a separation wall, make sure to isolate thermally the part of the probe looking out of the wall at the cable side.

     

  • Can E+E supply an accredited calibration certificate together with the measurement device?

    The product data sheet indicates if and what type of inspection certificate is included in to standard scope of supply. Most of the E+E measurement devices feature an inspection certificate according to DIN EN 10204-3.1 or DIN EN 10204-2.2. An accredited calibration certificate is available on request, see the E+E scope of accreditation at our calibration website

     

  • How often should I calibrate or readjust my E+E RH measuring device?

    The calibration / adjustement interval depend from the application and from the requirements of the specific industry. See also "Princibles of Humidity measurement".

     

  • What is the difference between a 2 wire and a 3 wire current output?

    Transmitter with "two-wires" technology receive the power from the process, and the signal is carry on return wire (closed current loop). With technology "three-wires" the power supply is separate from current output: 2 wires are the power supply and third carry the signal.

     

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