Coriolis Mass Flow Sensor Rheonik RHM160Indonesia Industrial Parts

The Measurement Principle

Each mass flow meter has two measuring tubes. The oscillating system is driven by two controlled electromagnetic excitation coils. As liquids or gases flow through the oscillating omega tubes, the Coriolis force is created and causes a slight deflection of the two measuring tubes from their original shape.

The opposing tubes are referenced to each other and the changes in deflection are proportional to the mass flow rate. In practice, the referencing is done by attaching small pickup coils that generate sinusoidal voltages. The degree of deviation of the phase shift is directly proportional to the mass flow.

The RHM 160 is the ultimate cargo and pipeline meter. With a combination of high accuracy and low-pressure drop, the RHM 160 is the perfect solution for rapidly transferring large fluid quantities with confidence.

Range: 250 kg/min up to 30000 kg/min
Pressure: up to 52 bar (754 psi)
Temperature: -196°C (-321°F) up to +120°C (248°F)
Accuracy: 0.1 % of rate
Materials: SS 316L / SS 316Ti, Alloy C22 – 2.4602
Process Connection: 12″ up to 12″

Features

Standard Pressure ratings up to 50bar (725 psi)
Temperature ratings from -196 to 120°C (-320 to 248°F)
Mass flow uncertainty down to 0.15%
Density uncertainty down to 0.5%
Repeatability better than 0.05%
Typical measuring ranges between 750 and 30000 kg/min
Accurately measure low flow rates down to 600 kg/min
Unique robust torsion has driven oscillation system
Approved for use in hazardous areas
Stainless steel case
Remote and compact transmitter versions are available

Applications

Typical applications include:

TerminalTransfer
Allocation Metering
Viscous Fluids
Barge, Ship, Rail Car, and Truck Filling

Benefits

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

RHM6 General Specifications

Nominal Flow (Qnom)*	30000 kg/min (66139 lb/min)
Minimum Flow (Qmin)*	750 kg/min (1653 lb/min)
Operating Temperature	Fluid from -196°C to 120°C (-320°F to 248°F), see options in Part Number Code
Operating Temperature	Ambient from -50°C to 80°C (-58°F to 176°F)
Pressure Ratings	Up to 50 bar / 725 psi – dependent upon material
Electrical Connection	Cable entry M25 x 1.5 (standard), M20 x 1.5, ½” NPT, ¾” NPT (optional)
Electrical Connection	Max. cable length to remote RHE transmitter 30m / 98ft
Sensor Enclosure Materials	Stainless steel (standard), 316 stainless steel (optional)
Sensor Enclosure Materials	Epoxy coated aluminum terminal box (standard), SS 316 terminal box (optional)
Enclosure Type	Protection class IP66 / NEMA 4X with Standard Temperature Range (Option N1/NA); IP65 / NEMA 4 for Extended Temperature Ranges (Option E3)
Wetted Materials	1.4571 (316Ti), 2.4602 (Alloy C22)
Wetted Materials	Additional/customer specific materials available upon request
Process Connections	Nearly any – the RHEONIK AnyPipeFit Commitment. Consult factory for types/sizes not listed
Pressure Rating Compliance	Europe – PED: Module B3.2+C2
Certifications and Approvals	ATEX / IECEx Approvals for zone 0, 1, 2 (suitably rated RHE transmitter required)
	North American Approvals for Class I, Div. 1, Groups ABCD (suitably rated RHE transmitter required)
	American Bureau of Shipping (ABS) Type Approval for use on marine vessels
Documentation, Testing and Inspection	All sensors are hydro tested, calibrated and supplied with a traceable calibration certificate. Customized calibration and testing services 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.
	•Start up and commissioning services on/offshore
Options	Enclosure heating for high temperature applications
	Cleaning for oxygen service
	Full service painting to project specifications – consult factory

At Qnom pressure drop will be approximately 1 bar (14 psi) for H20. Sensors can be operated at higher flow rates but pressure drop will be higher. Maximum recommended velocity (liquid) through the sensor is 15 m/s. Beyond this point, cavitation may occur. Qmin is the recommended lowest flow rate. Sensors will measure flow rates lower than Qmin, but uncertainty may increase beyond 0.5% of rate.

These flow rate and pressure drop statements relate to standard pressure tube sensor versions. Models with higher pressure ratings have increased wall thickness and will have higher pressure drops and lower Qnom values.