Rheonik Mass Flowmeter Range Flo lowmeter Over view Coriolis Mass F lowmeter Over view Index CORIOLIS MASS FLOWMETERING GENERAL INTRODUCTION CORIOLIS FORCE AND RHEONIK RANGE OPERATING PRINCIPLES SENSOR CONSTRUCTION DETAIL OMEGA FORM ADVANTAGES TECHNICAL SPECIFICATIONS REFERENCE LIST FLOW APPLICATION QUESTIONNAIRE Page 2 3 4 6 7 8 10 11 REFERENCE LISTS APPLICATION QUESTIONNAIRE LITERATURE REQUEST ADDITIONAL PRODUCT LITERATURE REQUEST 12 General Introduction ABLE Instruments & Controls was founded in 1985 with the vision of providing instrumentation and control solutions for both the Process and Research Industries by applying the most suitable available technology for any given application. During this time ABLE have been involved in solving some of the worlds most difficult applications and in doing so have assembled a comprehensive portfolio of contact and non-contact flow measurement technologies including clamp-on and insertion ultrasonic, coriolis, turbine, magnetic, venturi, vortex, variable area, pitot tube and positive displacement meters. ABLE have dedicated calibration, repair and manufacturing facilities plus application engineers committed solely to the development of improved flow metering techniques. As such ABLE have developed specialised systems for the requirements of specific industries including, but not limited to the pharmaceutical, semiconductor, food, power, oil and gas sectors. Experience gained in one industrial sector has in many instances lead to the development of a breakthrough measurement technique in another area. A project management team ensures that all requirements from specification, through to installation, support and maintenance are met in full. Use of an extensive software suite including CAD design facilities and an electronic documentation hub, allows the ABLE project department to ensure documentation; fabrication and design requirements are supplied to specification. A dedicated service department of specialist safety and offshore certified service engineers, allows ABLE to offer a complete service from best-fit technology identification right through to commissioning. Factory trained field and workshop based engineers provide comprehensive telephone and world-wide coverage support. p2 Coriolis For ce and For orce the Rheonik Range The coriolis effect was initially discovered by Gustave Gaspard Coriolis in the 1830’s, and can be explained as the inertial force exerted on an object as a result of movement relative to a rotating frame of reference. Since its discovery it has been applied to ballistic missile trajectories, hydraulics, machine performance, ergonomics, ocean and atmospheric circulations. The use of coriolis force as a technique for liquid and gas mass flow measurement has been firmly established for over 20 years. During this time a number of different configurations and technological signal processing advances have been made, ABLE are at the forefront of these with the Rheonik range. It is worth noting that only the Rheonik range has all of the capabilities listed below: - • • • • • • • Temperature from -200°C to +400°C Fiscal approval (OIML R117) EEx ia IIC & EEx de IIC approvals Measurement of multiphase flow and erratic flow profiles Unaffected by viscosity, density and pressure pulsations Density measurement Available in stainless steel, hastelloy, monel and tantalum • • • • Measurement of liquids, sludges, suspensions and gases Flow rates from 0.03 kg/h to 1,500,000 kg/h Diameters up to 12 inch / DN300 Pressure over 890 bar The Rheonik range is characterised by its unique and patented omega tube element, which allows the most challenging of applications to be solved. The omega tube has a torsional or swinging movement, rather than the bending motion traditionally associated with coriolis, this allows increased tube wall thickness, which means exceptional resistance to abrasion, operation under high pressures, plus it eliminates the requirement for the secondary containment associated with other element designs. Characteristic T orsional Oscillation Custody Transfer Truckloading Metering Oxygen p3 Operating Principle: The patented meter design is the key to the flexibility of the Rheonik range in terms of applicability and accuracy. Each flowmeter has two measuring tubes, which are parallel to one another and are formed into the unique omega shape. The oscillating system is completed by the two high mass cross bars and the vertically mounted torsion rods: Excitation of the oscillating system is via a pair of electromagnetic drive coils, which have a controlled amplitude. The system is symmetrical which means that the internal acceleration forces of the media are counterbalanced. When liquid or gas flows through the oscillating omega tubes a corresponding coriolis force is generated, this causes a phase shift between the two omega tubes. The degree of this phase shift is proportional to the mass flow and is detected by a pair of pick-up coils located at the top of the omega tube, where there is the greatest tube movement. This can be better understood by envisaging the oscillation of the measuring tubes, the upper semi circle of the omega tube, as it were taking place upon an imaginary disc, where point “a” and “b” are positioned on the circumference. Media starting at point “a”, moving along the imaginary disc toward “b” passes through orbits of differing velocities. The additional Coriolis force “FC” acting in the plane of the disc, perpendicular to the movement of mass on the disc (a-b), is directly proportional to mass flow. This force causes an additional deflection of the tubes and is sensed as a phase difference between the outputs of the two pick-off coils. i) The high mass bars stabilise the torsional movement, help to eliminate any effects from external vibration and allows continuous operation even in the presence of damping factors such as gas bubbles or non-homogenous media and vibration. ii) The torsion rods which are connected together at both ends, minimise stress, guide tube movement and help “energise” the torsional motion. This carefully balanced, but essentially rugged configuration has extremely low power consumption typically below 300mW. Fundamentally the system is so well balanced that once energised the system approaches perpetual motion. The natural frequency of the oscillating system largely depends on the mass of the cross bars and the modulus of elasticity of the torsion rods. real massflow FC torsion rod measuring tube FC b effective massflow a oscillating movement cross bar imaginary disc p4 Operating Principle : Meter Output During Flow Fundamentally sound operating principle allows accurate flow measurement without advanced diagnostics and ‘interpretation’ of data. P ic k o ff c oi ls a t z er o flow c o ndi on 1. 5 1 0. 5 Output 0 -0.5 -1 -1.5 1 4 2 3 4 2 3 4 5 6 • During zero flow output from the pick up coils is 180 o out of phase Ti me P ick o ff 1 P ick o ff 2 C or io lis F orc e I nduc e d by Fl ow 4 3 .5 3 2 .5 2 1 .5 1 0 .5 0 - 0.5 -1 - 1.5 -2 - 2.5 -3 - 3.5 -4 • 1 2 3 4 5 6 As flow is introduced coriolis forces begin to act effecting the torsion movement of the omega tube For ce Ti me E ffe ct on pi ck off coi ls due to fl ow 1.5 1 Output 0.5 0 - 0.5 -1 - 1.5 1 4 2 3 4 2 3 4 5 6 • Coriolis forces cause a shift in the signals from the pick off coils this Delta t is proportional to flow Tim e P ick of f 1 Pick off 2 p5 Construction Sensor Constr uction Detail The performance of the Rheonik mass flow meter lies in the unique construction of the sensor and the strict quality procedures that are adhered to during manufacture. All parts of the Omega tube including the base plate are vacuum soldered. Where applicable the IP65 housing covering the transmitter is screwed and sealed by an Oring against the base plate with hydraulic connectors being screwed against the base plate where the O-ring seals against the tube. Flanges may be directly welded onto the tube ends to help avoid any sealing problems, which can be a concern for applications involving toxic or lethal medias. The pick off coils for sensing tube movement and the drive coils which energise the tube are constructed of polyimidisolated wiring moulded in epoxy resin. The PT100 temperature sensor is mounted via a connection board directly into the terminal box. Systems for high temperature applications of up to 400o C have ceramic isolated wiring and adhesive, with terminals and all other connectors being of stainless steel construction. For convenience the Rheonik sensor can be divided into three separate parts, each of which has a distinct function. Combining to mass flow accurately, reliably and safely. (see facing page) Unique features Omeg For orm Ome g a For m • Design permits increased tube wall thickness Pickup coils Tube loops Drive coils Mass bar Torsion rod Electrical junction box • • • Active measurementsection is entire top half of omega tube Acts as part of the torsion swing system Requirement for secondary containment is eliminated! Patented orsion Rod Tor sion Rod • Helps energise torsion oscillation Flange connections • • Guides tube movement Minimises stress Dual Cross Support Bar Suppor t • Reduces susceptibility to external vibrations Stabilises torsion movement Works in conjunction with torsion rods to generate harmonic oscillation – tuning fork perpetual motion Removal flange manifold (also sealless available) • • p6 Process connection block The Rheonik sensor is designed to adapt to existing piping. Connection flexibility is achieved through the use of a detachable connection block that is independent from the rest of the sensor. As such it may be easily modified to suit individual specifications and safety requirements. The connection block has two general variants designed to ensure the omega tube is used in either a parallel (lower pressure drop) or serial (continuous) tube configuration. The serial configuration is suitable for nonhomogeneous, sanitary applications or for medias where there is a chance of plugging. In addition this configuration has a minimum of crevices and is compatible with most CIP procedures. Product Supply Product Suppl y Tubes After the fluid has passed the connection back, it flows through the product supply tubes. This portion of the sensor helps to condition the flow from the connection block into the measuring tubes. The length and shape of the product supply tubes are designed specifically to ensure maximum sensor stability and minimum stress. Measuring Tubes Only the lower half circle (the measuring tube) of the omega is used in the mass flow measurement these are driven in a rotary motion by the oscillation system. A characteristic feature of the Rheonik range is that the measuring tubes are stationary in relation to the oscillating motion of the sensor. Thus the measuring tubes are solely dedicated to measuring the mass flow, free from the influence of ambient factors or process conditions. Omeg For orm Adv antag Ome g a For m Adv antages Increased Wall Thickness The omega tube and consequent torsional movement allow the Rheonik range to have the thickest tube walls of any coriolis meter currently available. This has advantages in applications where corrosion or the effects of abrasion are a cause for concern. The rotary motion ensures that the bending forces required by other designs are eliminated, and it is these bending forces that are the limiting factor on the wall thickness of alternative tube designs. Consequently there is no requirement for secondary containment as the omega tube has a wall thickness at least equal to that of the surrounding pipework. No loss of accuracy is observed under changing pressure conditions and very high static pressure applications can be solved without any modification to the process. present any problems. Its spherical shape is also highly resistant to deformation, and thus the process pressure does not affect the system amplitude which is a source of inaccuracy with other tube shapes. Integ Par art orsional Integ r al P ar t of Tor sional Mo v ement Mov The torsional movement associated with the Rheonik range is clearly what distinguishes it from other coriolis designs, with the patented omega providing the basis for this measurement technique. Any external vibration has a tendency to be in the horizontal or vertical plane but generally not of a torsional nature thus the use of torsion measurement ensures virtually no effect from vibration and a stable output. Large Active Measurement Section The entire top half of the omega tube is used for measurement. The relatively large movement in the measurement plane and consequent high signal amplitude results in unrivaled sensitivity with low flows down to 0.03Kg/hr and high accuracy of up to +/-0.2%. As the active measurement section is located away from the process connection heat dissipation and vibration do not Density A number of models within the Rheonik range have the option of a density output. Calculation of density is relatively simple, as density equals mass divided by volume. As the volume of the meter is predetermined at manufacture the change in the base frequency as aresult of the mass of media contained allows a reliable and accurate output of density. p7 echnical specifications Tec hnical specifications Sensors: Type Typical measuring range (2) parallel [kg/min.] RHM015 RHM03 RHM04 RHM06 RHM08 RHM12 RHM15 RHM20 RHM30 RHM40 RHM60 RHM80 RHM100 RHM160 (1) (2) (3) (4) Nominal rate parallel (kg/min) 0,6 5 10 20 50 75 150 300 500 1250 2500 5000 10000 23000 Pressure rating(7) for temp up to 120o C 300 (400) (150) 300 150 (190) 380 290 190 (290) 150 (300) 110 (225) 150 (225) 40 (250(6)) 40 (200 ) 40 (100 ) 40 40 (6) (6) Standard Process Connections threaded (1/3) G 1/4” G 1/4” G 1/4” G 1/2” G 1/2” G 3/4” G 3/4” G 1” G 11/2” -----(7) flanged [mm.] DN15/1/2” DN15/1/2” DN15/1/2” DN25/1” DN25/1” DN25/1” DN25/1” DN50/2” DN50/2” DN80/3” DN100/4” DN150/6” DN300/8” DN300/12” serial [kg/min.] 0,002-0.3 (5) 0,004-0.6 0,1-5 0,2-10 0,5-25 1-50 2-100 4-200 6-300 12-600 (5) 0,05-2,5 0,1-5 0,25-12,5 0,5-25 1-50 2-100 3-150 8-375 15-750 30-1500 80-4000 --(4) (5) (6) 30-1500 60-3000 160-8000 240-12000 500-25000 NPT available on request Onyl standard meters Special range available on request Standard version with PTFE sealing up to RHM30, different sizes available Types RHM 007 and 01 are replaced by RHM 015 With extra calibration: (option on request) parallel serial 0,002 - 0,6 [kg/min] 0,001 - 0,3 [kg/min] Pressure rating in (...) refers to heavy duty or special versions Max. pressure rating of tube (fitting to be clarified) * Only selected models available as Gold Line - check with us For the selection of suitable meter size, considering the relevant pressure drop etc., please contact us. * Accuracy Range 1:20 Range 1:50 Repeatability ± 0,2% of rate and better* ± 0,5% of rate and better* better than ± 0,1% of rate* Gold Line Models fine tuned for your application: Range 1:5 Range 1:10 Repeatability ± 0,10% of rate and better* ± 0,15% of rate and better* better than ± 0,05% of rate* * Accuracy, Repeatability refers to reference conditions incl. zero drift (Reference conditions: H20, 1 bar, 20oC - regarding accuracy, range is turn down from nominal flow rate) Special calibration and fine tuning to customer flow range possible General technical specifications Pressure rating According to above table (for normal temperature version) Please note: pressure ratings decrease with higher temperature rating Higher pressure ratings are available on request (up to 1000 bar) RHM type NT ET1 ET2 HT VHT Temp. in oC - 20 - + 120o C - 200 - + 50o C - 45 - + 210o C 0 - + 350o C 0 - + 400o C Temp. class (for EEx ia IIC version) T4 - T6 T6 (Ex-approval for T> -45o C only) T3 - T6 T1 - T6 No EEx/only selected sizes Temperature range Normal Extended 1 Extended 2 High Very High Materials of wetted parts Standard 1.4571 (316Ti) / 1.4539 Hastelloy, Tantalum, Monel, Inconnel and others available on request Above data table covers ABLE standard program only Please specify your special requirements. p8 echnical data for remote Technical da ta for r emote units General Description: RHE 01.03 Plastic housing for wall mounting Protection class: IP54 Power supply: 230/115, 24 VDC Dimensions: 190x190x140mm Basic version is microprocessor based with free scalable pulse output via rotary switches. Outputs include flow pulse, error, flow direction (status outputs also indicated via LED). These units can be configurated for very fast response time (up to 60ms, depending on sensor type) * The RHE 06F+ has double pulse output with 90oC phase shift RHE 06/06F+ (EEx [ia] IIC) Alum. housing painted, for wall mounting Protection class: IP64 Power supply: 220, 110 VAC Dimensions: 200x200x110mm RHE06F has NMi/OIML custody tranfer approval RHE 07 (EEx [ia] IIC optional) Rack version (1/3 19” - 28TE 3HE) Protection class: IP20 Power supply: 230/115 VAC, 24 VDC Dimensions: 28TE, 3HE, 250mm RHE07F has NMi/OIML custody tranfer approval These remote transmitters are easy to program and provide selfdiagnosis of set up parameters in plain English. Features include low flow cutoff, response time, in/outputs, units etc. All settings are stored in a non-volatile memory, with all in-/ outputs being galvanically isolated (digital outputs via open collector photocoupler). RHE 07, 08 Programming: Free programmable via 3 pushbuttons, µP based remote unit 2 programmable 0/4-20 mA (Flow, density, temperature, volume) Galvanically isolated, max. load < 1000 Ohm, Accuracy + 0,05% of full scale 1 frequency- or pulse output (0-10000 Hz, max. 30V/50mA), 3 status outputs (limit, error/alarm, flow direction etc.) Analogue outputs: RHE 08 (EEx [ia] II C) Alum. housing painted, for wall mounting Protection class: IP64 Power supply: 230/115 VAC, 24 VDC Dimensions: 207x148x302mm Digital outputs: Digital inputs: 2 status inputs (zeroing, hold totalizer, tot. reset, quit error/alarm) Serial interface (as option). Remote units with RS 485 interface HART can be addressed in a 4-wire DIN-bus, ProfibusDP converter available - for RHE 07 no HART available 2 lines with each 16 digits (digit height 8mm) RHE 11 (EEx de [ia] IIC) S.S. housing for wall mounting Protection class: IP65 Power supply: 230/115 VAC, 24 VDC Dimensions: 244x225x200mm RS422/485: LCD display: RHE 11 Programming: Analogue outputs: Digital outputs: Digital RS422/485: LCD display: Via 3 photo sensors behind the glass cover 2 programmable analogue outputs 1 frequency- or pulse output inputs: 1 status output 1 status input o.R. If serial interface RS 422 (Option) will be activated, status in- and outputs cannot be used 2 lines with each 16 digits (digit height4mm) General data for all remote units: Temperature range: Power consumption: Power supply: -20 to 50o C < 15 watt 230/115 VAC +/- 10%, 50-60 Hz 24 VDC +/- 10% EEx [ia] IIC version: RHE 06, RHE 06F+, RHe07 and RHE 08 remote units have to be installed outside of hazardous area RHM can be installed in hazardous area EEx de [ia] IIC: RHE 11 can be installed in the hazardous area p9 efer erence Reference List CLIENT AMEC / BP MAGNUS PROJECT AMEC/BP E4 PROJECT/FOXBORO AMERADA HESS BAYER BP / PALPRO BRAN & LUEBBE UK CANNON VIKING CELOTEX CELTIC DALLING AUTOMATION DEVRO-TEEPAK DOW CORNING MEDIA HYDROCARBON WATER LNG TEST SCALE INHIBITOR, H2S SCAVANGER CORROSION INHIBITOR SCALE INHIBITOR WATER BREAKER HCL SOLUTION POLYOL MIX POLYMER CATALYST ISOCYANATE, POLYOL VEGETABLE DYE, GLUTERALDEHYDE HYDROGEN, DPR (LIQUID) CHLOROSILANES, WATER SILOXANE HC1 20% HCL/WATER GAC13L HCL/VCM/EDC, ORGANICS CRUDE EDC BROMINE LIQUID NITROGEN, LIQUID PROPANE CATALYST SLURRY HYDROCARBON COND. WATER & HCL SULFURIC ACID 58%, PHENOLIC RESIN ACETIC ACID, PARAXYLENE SLURRY METHANOL FREON 22 ISOCYANATE POLYOL DICHLOROMETHANE, ACETONE, DMSO, ETHO-ORTHO-FORMATE, HYDROGEN BROMIDE, ACETONE, DMSO SCALE INHIBITOR METHANOL WATER & ORG SOLVANT CONDENSATE MONOETHYLENE GLYCOL ALUMINIUM TRIETHYL BITUMEN CO2 SUPERCRITICA, BROMINE LIQUID COOLANT, NITROGEN HCL 20% DOW KVAERNER ENICHEM EUROPEAN VYNLS CORP GREAT LAKES CHEMICALS IMPERIAL COLLEGE, LONDON JACOBS MONTELL / SHELL JORDAN KENT METERING SYSTEM KINGSP IRELAND AN KINGSPAN UK KVAERNER / SINOPEC INT MARA THON OIL NRC BOTT OMS PHARMACIA & UPJOHN, CORK DOW PHILLIPS PETROLEUM / JADE PILKINGTON TECHNOLOGY SHELL OFFSHORE SLP TARGOR TOTAL FINA ELF UNI F. BEECHAMS p10 FLOW APPLICATION QUESTIONNAIRE FAXBACK +44 (0)118 931 2161 Name: Company: Address: Address: EMAILBACK firstname.lastname@example.org Postcode: Telephone: Fax: Email: For an IMMEDIATE quotation, fill in the appropriate details below and return to ABLE Process Fluid: Process Conditions Flowrate m3/hr Operating Temp 0C Operating Pressure Barg Viscosity cSt Density kg/M3/mw % Solids/ % gases/ % liquid Compressibility Pipework Minimum Normal Maximum Nom. Pipe Size mm : Pipe Material : No. of Straight lengths up / down : Can flow be stopped to set zero : YES / NO Display / Output Schedule / wall : Connections : Pipe Orientation : VERTICAL / HORIZONTAL / OTHER Pipe Full of Liquid : YES / NO Preferred wetted materials: Flowrate : Total : 4 – 20mA : Pulse : Alarms : Performance Requirements YES / NO YES / NO YES / NO YES / NO YES / NO Hazardous Area Classification : Distance to Safe Area : Available Power Supply : Submersible / IP68 : YES / NO Batching: Yes/No Desired Accuracy : % Full Scale / % Reading (Please delete as appropriate) p11 FAXBACK RESPONSE FORM FAXBACK +44 (0)118 931 2161 LEVEL Float Switches Nucleonic Gauges Radar EMAILBACK email@example.com ABLE's product portfolio is listed below, to receive information on any of these products please indicate your interest and return this form to us:- Ultrasonic Switches & Transmitters R.F. Admittance Magnetic Level Indicators Capacitance FLOW Open Channel Flow Turbines Thermal Mass Flow Clamp-on Ultrasonic Coriolis Pitot Tubes Mag Meters TEMPERATURE & PRESSURE Temperature & Pressure Transmitters Pressure Regulators Differential Pressure Gauges Temperature & Pressure Switches PROCESS CONTROLLERS Hybrid Control Systems Signal Loop Controllers HUMIDITY & MOISTURE RH & Dew Point Moisture in Solids Analysers Trace Moisture RADIOMETRY Ultraviolet Visible Infra-red COMPOSITION Liquid Analysis Please send me more general information about your products and services Gas Analysis I have completed the faxback form and would like to be included in your monthly prize draw What industry is your Company associated with? Mr/Ms/Other Surname: Job Title: Company: Address: Initials County: Country: Tel: Fax: Email: Website: Where did you learn of our Company? P/c.: Do you have access to the internet? Yes No ABLE Instruments & Controls Ltd. Cutbush Park, Danehill, Lower Earley, Reading, Berks., RG6 4UT UK Tel: +44 (0)118 931 1188 Fax: +44 (0)118 931 2161 Email: firstname.lastname@example.org Website: www.able.co.uk No liability can be accepted for any errors or omissions in relation to the equipment and its application. This information is copyright to ABLE Instruments and Controls Ltd. Reproduction by any means is forbidden without express permission.
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