RHE 21

Ex d Field Mount

An advanced function, explosion proof, field mount transmitter. With a corrosion resistant stainless steel enclosure and through-glass operation capability, the RHE 21 is rated to IP67 and suitable for the most extreme of installation environments. Features such as API Standard Volume correction and Net Oil calculation are available.

  • Measure Mass Flow, Volumetric Flow, Density and Temperature
  • Outputs 2 x Analog, 2 x Frequency/Pulse, 2 x Digital Status
  • Inputs 2 x Digital, 1 x Analog
  • PC USB for RHECom, RS 485 for Modbus RTU, HART over Analog
  • Backlit Color LCD
  • ATEX/IEC Ex, CSA approved
  • Rheonik Assurance Factor®



Mechanical Construction

RHE21 Dimensions Type E1, E2



RHE21 Dimensions Type EP



RHE21 Dimensions Type H1, H2



RHE21 Dimensions Type E3, E4



RHE21 Dimensions Type E5



RHE21 Dimensions Type H3