RHM 02, 03 & 04 Compact Low Flow Coriolis Flow Sensors
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Compact Low Flow Coriolis Flow Sensors Pressure ratings up to 20000 psi/1379 bar Temperature ratings from -196 to 350°C (-320 to 662°F) Mass flow uncertainty down to 0.10 % Density uncertainty down to 0.005 kg/liter Repeatability better than 0.05 % Ranges between 25 g/min to 10 kg/min Dual path (parallel) and single path (serial) internal pipe configurations available Omega Coriolis Design: unique torsion driven oscillation system Rheonik AnyPipeFit Commitment brings you the possibility to get any custom process connection type and size for savings on installation costs. Compact design with minimal footprint Extremely compact design with minimal footprint Approved for use in hazardous areas Entire enclosure / external parts in stainless steel 316Ti available Removable connection manifold version available for easy maintenance Remote and integral transmitter versions available Specifications and features subject to change Version no: 1.6 JUNE-2021 General Flow Control High Pressure Gas Dispensing Additive Dosing Mixing and Batching Chemical Injection Package and Container Filling Polyurethane, Paint, Adhesives Rheonik Sensor Benefits • • • • • • • 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 Long sensor life guaranteed due to low mechanical stresses of torsional movement No moving parts to wear or fa

General Specification Overview RHM 02 Nominal Flow (Qnom)* Minimum Flow (Qmin)* Serial Tube/ Single Path Versions Flow rates Qnom, Qmin will be 50 % of the above listed parallel/dual tube version of the same size Operating Temperature Fluid from -196 °C to 350 °C (-320 °F to 662 °F), see options in Part Number Code Ambient from -50 °C to 80 °C (-58 °F to 176 °F), optional up to 210 °C (410 °F) Pressure Ratings Up to 1379 bar/20000 psi - dependent upon material Electrical Connection Cable entry M20 x 1.5 (standard), M25 x 1.5, ½” NPT, ¾” NPT (optional) Max. cable length to remote RHE...

Measurement Performance Standard Calibration A or B 0.5 % Uncertainty ±0.5 % uncertainty between Qnom and Qmin 0.2 % Uncertainty ±0.2 % uncertainty between Qnom and Q0.2 Mass Flow Rate Q0.2 Goldline (Selected Sensor) Calibration G or P 0.1 % Uncertainty ±0.1 % uncertainty between Qnom and (Qnom/10) 0.12 % Uncertainty ±0.12 % uncertainty between Qnom and (Qnom/20) Mass Flow Rate Qnom/20 Only for sensors with standard temperature and pressure range Customized calibration services are available – consult factory Low Flow (Selected Sensor) Calibration C or 1 Low Flow Optimized Calibration* ±0.2...

Measurement Tube Pressure Ratings The maximum pressure (Pmax) of a sensor is determined by its lowest rated part. The lowest rated part can be either the measurement tube (Pmax indicated below), the construction type (Pmax indicated in the Part Number Code section, last page) or the process connection (for Pmax see published standards or manufacturer information). RHM 02 P1 Super Duplex Other Materials Other wetted materials (e.g. Alloy C22, Inconel, Monel, 304 stainless steel, others) may be possible for chemical compatibility, lower pressure drop, abrasion allowance, other application...

Mechanical Construction Sensors are manufactured with two internal measurement tubes arranged side by side. In parallel or dual path sensors (order code Pxx), these tubes are connected in parallel and the flowing fluid is split equally between them. In serial or single path sensors (order code Sxx), the tubes are connected end to end, creating a single path through which all fluid flows. Manifold designs have a removable inlet/outlet manifold block and utilize seals between the manifold and sensor body. In seal-less designs, the measurement tubes are continuous between the process...

Mechanical Construction (continued) Seal-less design with flange/hub connections PF0: parallel/dual path, SF0: serial/single path Process Connection Order Code ANSI ½" 150#RF ANSI ½" 300#RF ANSI ½" 600#RF ANSI ½" 1500#RF ANSI ½" 1500#RTJ ANSI ½" 2500#RF DIN DN15/PN40 DIN DN15/PN100 DIN DN15/PN160 Grayloc® Hub 1" GR4 JIS RF10K 15A (½") JIS RF20K 15A (½") Sanitary ½" Triclamp DIN 32676 - only with SF0 - only with PF0 Meter will be supplied with a wetted material facing disc and 1.4571 (316Ti) stainless steel backing flange for some material selections (e.g. Tantalum) Seal-less design with...

RHM 04 Version For Hydrogen Dispensers (M04S) Mechanical Construction Sealless design with Autoclave thread connections PMT: parallel/dual path Face to Face (L) mm in Process Connection Autoclave ⅜" MP (⁹⁄₁₆"-18 UNF female thread) Order Code Optional SS 316 box, size = 100 x 100 x 61 mm (3.94 x 3.94 x 2.40 in) Terminal boxes are supplied with M20 x 1.5 cable entries as standard A Standard blue terminal box in Aluminum, size = 125 x 80 x 57 mm (4.92 x 3.15 x 2.24 in) Specifications and features subject to change Version no: Flow Tube Pressure Rating bar

ORHMS-M ORHMS-MF ORHMS-MG Options Codes Terminal Box and entire enclosure in SS 316 Housing Purge ¼" NPT (2 pcs) Housing Purge ¼” NPT, with Integrated Rupture Disk Rupture Disk on Housing FFKM Manifold O-Ring Seals instead of Standard FVMQ Manifold O-Ring Seals instead of Standard Options (order separately) ½" NPT Terminal Box Cable Entry M25 x 1.5 Terminal Box Cable Entry (only with SM Electrical Connection) ¾" NPT Terminal Box Cable Entry Accessories Wall mounting bracket (highly recommended for low flow installations) Floor mounting bracket standard Floor mounting bracket upside down...

Options and Accessories (continued) Mounting Brackets for special Installation requirements M Wall Mount, all Types except PMT M Wall Mount, Type M04S_PMT Standard / Usual Installation Without Mounting Brackets Pipe supports Specifications and features subject to change Version no: 1.6 JUNE-2021