Rheonik RHE45 Coriolis Mass Flow Transmitter

Rheonik RHE45 Compact Mount Coriolis Mass Flow Transmitter

Table of Contents

Rheonik RHE45 Flow Transmitter is an extremely compact Coriolis transmitter.  The multifunction capability provides real-time mass and volumetric flow plus density and temperature indication.  The Rheonik AnyInterface 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.

Rheonik RHE45 Flow Transmitter 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

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  • 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


  • 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®

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Rheonik RHE45 Flow Transmitter 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 pin 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 10kHz

Digital Inputs

Up to 2 x configurable control inputs (to IEC60946)

Digital Data Communications

Modbus RTU/TCP, Ethernet IP, Profinet, EtherCAT, PowerLink,
Profibus DP, DeviceNet, CANopen.  Others on request

Power Supply

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

Hazardous Area Approvals

ATEX/IECEx: Zone 2 – scheduled for Q1 2020

CSA: Class 1, Div. 2 – scheduled for Q1 2020

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RHECom Software

The RHE45 transmitter is a fully featured device with many sophisticated functions and configuration is necessary for proper performance of these functions. RHECom software is available in three versions – Free, Pro and Pro+. RHEComFree is available for download at no extra cost or on USB flash drive. RHEComFree allows full setup of transmitter parameters and includes a useful datalogging function for monitoring performance of the meter.

For a small one-time license fee, RHEComPro and RHEComPro+ offer additional insight and setup convenience menus. RHEComPro includes data logging, trending and broad diagnostic capabilities. RHEComPro+ takes flow meter management one step further with a revolutionary fully functioning simulator application. With the simulator, you can trial run your application from the convenience of your office, adjusting transmitter settings, setting alarms and filters, and creating transmitter configuration files for upload into the actual unit. The simulator is also ideal for training – it exactly mimics the front panel of the instrument display and buttons when clicked and includes controls for adjusting flow, density and temperature readings just like the unit was in line!

RHECom software is designed to ensure simple and expedient setup of Rheonik transmitter features and functions – a real time saver and a valuable tool.

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Transmitter Range

Any Rheonik Mass Flow Transmitter model can be combined with any Rheonik Mass Flow Sensor to provide an overall mass flow measurement system to suit any requirement. Rheonik Coriolis Transmitters are available in versions specifically designed for process, industrial and OEM applications. Economical blind front versions of some transmitters are available where displays and keypads are not required. The wide range of sensors and transmitters provide tremendous options for system designers and end users alike

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