Introduction
The Rheonik RHM 10 Coriolis Mass Flow Sensor is a high-precision Coriolis mass flow meter engineered for small-scale production processes, continuous low-flow measurement, and accurate small-batch dispensing applications. Designed to deliver exceptional performance across a wide range of industrial environments, the RHM 10 combines advanced sensor technology with robust mechanical construction to ensure stable and repeatable measurements even under demanding operating conditions. Its compact design, coupled with multiple construction and material options, allows seamless integration into diverse process systems, including those requiring high pressure, extreme temperatures, or corrosive media compatibility. The sensor provides reliable mass flow and density measurement with superior accuracy, making it an ideal solution for industries such as chemical processing, pharmaceuticals, specialty manufacturing, and precision dosing systems.
- Flow Range: 0.25 kg/min up to 90 kg/min
- Maximum Pressure Rating: Up to 1384 bar (20,073 psi)
- Operating Temperature Range: -196°C (-321°F) up to +350°C (+662°F)
- Measurement Accuracy: ±0.1% of rate
- Wetted Materials: SS 316L / SS 316Ti, Super Duplex (1.4410), Sandvik HP160, Alloy C22 (2.4602)
- Process Connections: ½” up to 1½”
General Specification
| Nominal Flow (Qnom)* | 60 kg/min (132 lb/min) |
| Maximum Flow (Qmax)* | 90 kg/min (198 lb/min) |
| Typical Minimum Flow (Qmin)* | 0.25 kg/min (0.55 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 from -196°C to +210°C (-320°F to +410°F) |
| Ambient Temperature | -50°C to +80°C (-60°F to +180°F). High temperature version for oven installation up to +210°C (+410°F) available |
| Pressure Ratings | Up to 1379 bar / 20000 psi – dependent upon material |
| Electrical Connection Sensor w/o Integral Transmitter |
M20 x 1.5 standard cable entry for JM, SM terminal box versions |
| Sensor Enclosure Materials |
Stainless steel 304 (standard), SS 316 (optional) |
| Enclosure Type | Protection class IP 66, NEMA 4 (standard), IP 66/67, NEMA 4X (optional) |
| Wetted Materials |
Flow tubes SS 316L, SuperDuplex or Sandvik HP160© |
| Process Connections | Nearly any – the Rheonik AnyPipeFit Commitment. Consult the factory for types/sizes not listed in this data sheet on the Mechanical Construction pages |
| Pressure Rating Compliance | PED 2014/68/EU Article 4, Section 3 (SEP) |
| Certifications and Approvals |
ATEX / IECEx Approvals Zone 0, 1, 2 (see page 19) |
| 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.
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| Options | Customization services for machine integration. Consult factory |
Pressure Drop
At Qnom, the pressure drop across a parallel tube sensor will be approximately 1-3 bar (15-44 psi) for H2O. Sensors can be operated at higher flow rates, but the pressure drop will be higher. Qmin is the recommended lowest flow rate. Sensors will measure flow rates lower than Qmin, but uncertainty will increase beyond 0.5 % of the rate.
The flow specifications above relate to standard pressure, parallel tube, and manifold sensor versions. Models with higher pressure ratings have increased wall thickness and will have higher pressure drops.
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