SHD 200

Control unit for 4…20 mA/HART® field devices

  • Second 4…20 mA output for any HART® variable
  • 2 configurable relays for status output, system alarm or limit switch
  • Status signalisation by 5 LEDs according to NAMUR NE 107
  • User-configurable measurement pages for all 4…20 mA and HART® signals incl. trend graph and summary page

SHD 200 – Plastic version

SHD 200 plastic version

The SHD 200 is a unit for control and monitoring of process parameters in various industry applications. It is suitable for connecting to all loop-powered field devices with 4…20 mA output and/or HART® communication. The SHD 200 exceeds the functionality of an ordinary display. It features different customer-specific measurement pages displaying up to 4 different values for detailed process monitoring (incl. trend graph and summary page).

For improved process control, the control unit comes with two freely programmable relays for status, system alarm and limit switch as well as a second current output for any HART® variable (e.g. temperature in pH and conductivity measurements). Connecting a HART® handheld, the SHD 200 provides access to all sensor functions including calibration.

Product highlights

  • 2-wire, loop-powered device
  • Full access to all sensor functions including calibration possible by connecting a HART® handheld
  • Mapping of any HART variable via second current output
  • System alarm: Indication of any system relevant failure possible (e.g. loss of HART® communication)
  • Robust plastic or aluminium housing (IP66/67)
  • Various operating languages available
  • For wall-mount installation
  • Approved for hazardous areas (e.g. ATEX/IECEx Ex ia)

Typical applications


  • Process control and monitoring of various parameters such as pH/ORP, conductivity, level, pressure and temperature measurements transmitted via 4…20 mA and/or HART® protocol

Pharmaceutical, Life Sciences

  • Alert functionality for conductivity measurements of purified water or water for injection (WFI): process control to perform conductivity measurements in accordance with USP (United States Pharmacopeia) Chapter <645> ("Water Conductivity")