Coriolis Mass Flow Transmitter

The RHE45 is an extremely compact Coriolis transmitter.  The multifunction capability provides real-time mass and volumetric flow plus density and temperature indication. The Rheonik Any Interface Commitment provides a wide variety of communication options for seamless connection to control or SCADA systems.

Options include Ethernet, Modbus, ProfiNet, EtherCat, PowerLink, Profibus, CAN, and others. The RHE45 can be supplied integral to any of the wide range of RHM series of mass flow sensors.

A tamperproof switch for critical applications is available optionally. When the unique Rheonik Assurance Factor® advanced diagnostics package is included, the RHE45 gives headache-free operation and provides deep insight into measurement conditions for precise process control.

Features :

  • Extremely compact Fully Digital Coriolis Transmitter
  • The excellent signal-to-noise ratio for ultimate performance
  • Selectable outputs for mass flow, volumetric flow, density, and temperature positive, negative, and net totalizers for both volumetric and mass flow
  • Discrete I/O includes 4-20mA, pulse, frequency, and status plus analog and digital inputs for remote control and measurement packages
  • The Rheonik AnyInterfaceCommitment– a wide variety of communication options for a seamless connection to your control or SCADA system. Options include Ethernet, Modbus, ProfiNet, EtherCat, PowerLink, Profibus, CAN, and others!
  • The fast and easy electrical installation with plug-in connectors
  • An optional color back-lit display including 3 button keypad for local configuration and operation through an intuitive user menu
  • Zone 2 / Class 1, Div. 2 hazardous areas certification in preparation

Applications :

  • High pressure, low flow chemical injection measurements – sensors up to 1400 bar / 20000 psi available
  • Filling and batching
  • Robot-mounted flow measurement
  • Mixing and blending of chemicals
  • PU and Paint
  • Compact flow measurement for OEMs and skid manufacturers

Benefits :

  • Very compact highly accurate multifunctional flow measurement
  • IoT/ Industry 4.0 ready
  • Compatible with various Ethernet standards
  • Fast and easy setup using RHEComsoftware incl. data logging
  • Highly reliable thanks to self-diagnostic and Assurance Factor®

Specification :

Enclosure Material

Epoxy-coated aluminum enclosure

Enclosure Rating

IP66 / NEMA 4

Ambient Temperature

-40 to +60°C (-40 to +140°F)
Reduced display visibility at temperatures below -10°C (14°F)


Aluminum enclosure: 125 x 80 x 57 mm / 4.92 x 3.15 x 2.24 in


Optional high contrast backlit LCD color display available


Via RHECom configuration software
3 x front panel operator buttons with optional LCD display

Electrical Connection

Via 12-pin and 8 pins A-coded plug-in connectors
USB for PC connection


Forward, reverse, and net flow totalizers for both mass and volume

Analog Outputs

Up to 2 x 4-20 mA (active/passive) for flow, density, or temperature

Pulse/Freq/Status Outputs

Up to 2 x configurable pulse/frequency/status outputs (IEC60946). Max. frequency 10kHzv

Digital Inputs

Up to 2 x configurable control inputs (to IEC60946)

Digital Data Communications

Modbus RTU/TCP, Ethernet IP, Profinet, EtherCAT, PowerLink, Profibus D P, DeviceNet, CAN. Others on request

Power Supply

12-24 VDC +/- 10%, 4W

Hazardous Area Approvals

AT E X / IECEx: Zone 2 – scheduled for Q1 2020
CSA: Class 1, Div. 2 – scheduled for Q1 2020

Download Datasheet : Rheonik_Coriolis_RHE45