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Rheonik RHM12 Coriolis Mass Flow Meter

The RHM 12 Coriolis mass flow sensor is an economical meter which has been in production for over 15 years. This meter has been optimized for applications that require extreme stability and fast response.

The RHM 12 Coriolis mass flow sensor is an economical meter which has been in production for over 15 years. This meter has been optimized for applications that require extreme stability and fast response. As with all other Rheonik meters, this model is based on the patented Omega tube design with an increased signal to noise ratio.

The RHM12 Coriolis mass flow meter can measure flow rates up to 10 kg/min (21 lb/min) with extremely fast response times and excellent repeatability. A true solution, particularly for applications such as batching where fast response times are needed, manufactured by Rheonik, the mass flowmeter experts.

This unique design, which offers excellent performance and reliability, has created the most satisfied customers worldwide. Unlike other mass flowmeters,  Rheonik uses a patented torsion swinger with the Omega shape and support bars which results in high accuracy measurement, which is independent of pressure, even at very low flow velocities. The meter has also extremely good repeatability and high stability for critical applications.

ADVANTAGES

  •     Torsion oscillator design assures a stable and drift-free measurement with excellent signal to noise ratios.
  •     Resilient to external noise and vibration
  •     Insensitive to pipe pressure changes
  •     Robust tube wall thickness provides increased operational safety in abrasive applications
  •     Corrosion-resistant
  •     Long sensor life guaranteed due to low mechanical stresses in the meter mechanism
  •     No moving parts to wear or fail

Features

  • The outstanding features include:
  •     Standard pressure rating up to 790 bar (11458 psi)
  •     Temperature rating from -196 to 350 Deg C (-320 to 662 Deg F)
  •     Mass flow uncertainty down to 0.12%
  •     Density uncertainly down to 0.5%
  •     Repeatability better than 0.05%
  •     Typical measuring ranges between 1 and 100 kg/min
  •     Accurately measure low flow rate down to 750 g/min
  •     Unique robust torsion drove oscillation system
  •     Precess Connection customization available
  •     Minimum pipe footprint versions available
  •     Approved for use in hazardous areas
  •     Stainless steel case
  •     Removable connection manifold version available for easy and efficient maintenance
  •     Remote and compact transmitter versions available

Applications

Suitable for virtually any mass flow

  •     General Flow Control
  •     Addicting Dosing
  •     Mixing
  •     Batching
  •     Package and Container Filling

Specifications

Nominal Flow (Qnom)* 75 kg/min (220.5 lb/min)
Maximum Flow (Qmax)* 100 kg/min (220.5 lb/min)
Typical Minimum Flow (Qmin)* 1 kg/min (2.2 lb/min)
Serial Tube / Single Path Flow rates Qmax, Qnom and Qmin for “serial” sensors will be 50% of the above listed parallel/dual path version.
Operating Temperature Fluid temperature range options cover applications from -196°C to +350°C (-320°F to +662°F). For integral transmitter versions please refer to transmitter datasheet
Ambient Temperature Fluid temperature range options cover from -196°C to 350°C (-320°F to 662°F) For integral transmitter versions please refer to transmitter datasheet
Pressure Ratings Up to 790 bar / 11458 psi – dependent upon material
Electrical Connection Sensor w/o Integral Transmitter M20 x 1.5 standard cable entry for JM, SM terminal box versions

Optional entries available : ½” NPT or M25 x 1.5 (only for SM) or ¾” NPT (only for SM) Max. cable length to remote RHE transmitter 100 m / 328 ft

Sensor Enclosure Materials Stainless steel 304 (standard), SS 316 (optional)

Coated aluminum terminal box, SS 316 terminal box (optional)

Enclosure Type Protection class IP66, NEMA 4X (standard), IP66/67, NEMA 4X/6 (optional)
 

Wetted Materials

Flow tubes SS 316Ti, Alloy C22, Tantalum or SuperDuplex Manifolds SS 316L; Seal material (manifold construction): PTFE Standard flanges SS 316Ti, other connections SS 316L Additional/customer specific materials available upon request
Process Connections Nearly any – the Rheonik AnyPipeFit Commitment. Consult factory for types/sizes not listed in this data sheet on the Mechanical Construction pages
Pressure Rating Compliance Europe – PED: Module A2, Module B3.1+C2 Canada – CRN: Canadian Registration Number
 

Certifications and Approvals

ATEX / IECEx Approvals for Zone 0, 1 (details see page 17)

North American Approvals Class I, Div. 1, 2, Gr. A,B,C,D, Zone 0, 1 MID custody transfer approval (OIML R117)

American Bureau of Shipping (ABS) Product Type Approval for use on marine vessels

Testing and Inspection All sensors are hydro tested, calibrated and supplied with a traceable calibration certificate. Customized calibration and testing services are available
 

Project Documentation and QA, Services

Rheonik offers a full set of services for large and complex engineering projects. Typical services offered are, but not limited to:

•      Certificates of origin and conformity, mill certificates

•      Data books including WPAR, WQS, NDT, test & quality plans, functional testing, calibration procedures, customized packing, factory acceptance etc.

•      Painting to project specification

•      Start up and commissioning services on/offshore

 

Options

Enclosure heating for high temperature applications Cleaning for oxygen service , …

For more consult factory

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Rheonik RHM12 Coriolis Mass Flow Meter

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