Read By Categories

Next Event :

Rheonik RHE21 Coriolis Mass Flow Transmitter

Rheonik RHE21 Coriolis Mass Flow Transmitter

Table of Contents

Rheonik RHE21 Coriolis Mass Flow Transmitter is an advanced function, explosion-proof, field mount transmitter. With a corrosion-resistant stainless steel enclosure and through-glass operation capability, the RHE21 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®
Rheonik RHE21 Coriolis Mass Flow Transmitter
Rheonik RHE21 Coriolis Mass Flow Transmitter

Rheonik RHE21 Flow Transmitter Features

  • Wall or Pipe Bracket Mounting
  • Corrosion resistant housing in SS316 available
  • Selectable Units for Mass, Volume, Density and Temperature
  • Positive, negative and net totalizers for both volume and mass flow
  • Two configurable pulse/frequency/status outputs – double pulse available
  • Two analog outputs
  • Two configurable digital status outputs
  • Outputs are also available as intrinsically safe version
  • Configurable digital input
  • Analog input configurable for pressure or density
  • Advanced functions: Net Oil, Baume/Brix, % Solids, Standard Density and Standard Volume (API MPMS Ch. 11)
  • Modbus RTU and HART
  • Custody transfer lockout switch and seal point
  • Backlit Color LCD display and 3 behind-glass buttons with intuitive menu design
  • USB connection for PC running Rheonik RHECom software
  • Built-in Assurance View® Advanced Diagnostic Set – clear publication of measurement status with Assurance Factor® and/or color changing display
  • Password Protected Setup
  • Upload and download of configuration files
  • Power consumption typical 3-4 W

Read More : Fakta Tentang Orifice Flow Meter


  • General and critical process flows
  • Feed stocks and transfers
  • Custody transfer
  • Well head production
  • Offshore


  • 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®

Read More : Cara Kerja, Aplikasi, dan Keuntungan Orifice Flow Meter

General Specifications


Stainless steel. Optionally all 316 stainless steel

Enclosure Rating:

IP66 / NEMA 7X

Ambient Temperature:

-40 to +60°C / -40 to +140°F (reduced visibility below -20°C / -4°F)


Depending upon construction type, please see Dimensions page

(approx. 255 x 200 x 100 mm / 10 x 8 x 4 in)


Backlit color LCD.  Screen changes color to indicate warning or error


8 kg (17.5 lb)


3 x behind-window capacitive sensors for menu navigation / settings

Sensor Connection:

Integral sensor cable with 3m or 10m length or optional IS terminal box for separate custom length sensor cable connection

Analog Outputs:

Up to 2 x 4-20mA outputs, active or passive

Intrinsically safe versions available

Uncertainty of analog outputs +/- 0.1% of reading, +/- 10µA

Digital Outputs:

Up to 2 x configurable status outputs (IEC60946)

Intrinsically safe versions available

Pulse/Frequency Outputs:

Up to 2 x configurable pulse/freq. outputs (IEC60946), max 10 kHz

Digital Inputs:

Up to 2 x configurable control inputs (IEC60946)

Analog Input (optional):

1 x 4 – 20 mA analog input (active) for two-wire external sensor

Power Supply:

100-240 VAC (48 to 62 Hz) or 12-24 VDC +/- 10%, max. 6W

Digital Data Communications:

Modbus RTU (RS485)
Connection to a PC (USB) with Rheonik RHEComPro software
HART over analog output

Cable Entries for

Power and I/O:

Type E* two M16 x 1.5 entries with Ex e glands 4-11mm (standard)
Type E3, E4, E5, EP optional ½” NPT, ¾” NPT, M20 x 1.5, M25 x 1.5

Type H* two ½” NPT

Hazardous Area Approvals:

For ATEX / IEC Ex and cCSAus please see Part Number Code page

Others available on request

Read More : Prinsip Kerja, dan Aplikasi Laminar Flow Meter

RHECom Software

The RHE21 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!

Read More : Komponen Dasar Sistem HVAC

Source :