IFS Electromagnetic flow sensor

Transcription

1 Technical Datasheet Electromagnetic flow sensor Flow sensor for the process industry Special flow sensor for harsh media and slurries For demanding applications: High temperatures, high pressures, low conductivity, corrosive liquids, hazardous areas Robust and reliable

2 Product Features Standard Protection class IP 67 (NEMA 6) (IP 68 / NEMA 6P on request for Permanent underground burial) Modular Design Separate version, With connection box, signal converter in field hosing Compact version Various signal converters for direct mounting on the primary head Fully welded housing, rugged, resistant to corrosion Highlights Standard device in the process industry Robust and reliable Works reliably under demanding conditions: High temperatures (up to 180 C / 356 F) and low conductivity Quick and easy to install and operate Chemically resistant to alkaline solutions and acids Industries and Applications Chemicals Measurement of aggressive acids and alkalies etc Pulp and Paper Measurement of pulps and pastes etc Minerals and Mining Measurement of abrasive slurries, liquors etc Iron, Steel and Metals Measurement of abrasive slurries, water etc Pharmaceuticals Measurement of various chemicals etc Water and Wastewater Water and Effluent etc Petrochemicals / Oil and Gas Measurement of Water, effluent etc The IFS 4000 has been designed for measuring any application in any industry. Further more the modular concept allows tailor-made solutions for challenging applications. Every meter that leaves our factory is first wet-calibrated on our calibration rigs (ISO/IEC standards) 2

3 Construction The measuring tube of the sensor has a smooth, cylindrical shape. This design, consisting of a circular cross section (no moving parts) and a homogeneous magnetic field, forms the basis for a flowoptimized pipe cross section, thereby providing reliable measurements that are largely independent of the flow profile. This design allows the sensor to measure the flow bi-directional. As an additional benefit, there is no possibility for product to build up and the free cross section sized to the customer pipeline creates no pressure drop. In addition, the required straight inlet and outlet runs are only 5D and 2D. The liner of the measuring tube is made of PTFE / PFA or Soft Rubber and is resistant to vacuum, corrosion, aging and abrasion. The surface and shape of the measuring tube also minimize mineral deposits, resulting in exemplary measurement quality - even over the long term. Electromagnetic flowmeters have many important advantages over mechanical flowmeters like outstanding longterm stability, maximum process reliability, no maintenance - to name just a few. As a result, these meters can deliver precise and reliable measurements for many years. Measuring Principle Faraday s law An electrically conductive fluid flows inside an electrically insulated pipe through a magnetic field. This magnetic field is generated by a current, flowing through a pair of field coils. Inside of the fluid, a voltage U is generated: U = V * K* B * D Where V = Mean flow velocity K = Meter constant / correction factor for geometry B = Magnetic field strength D = Inner diameter of flowmeter The signal voltage U is picked up by electrodes and is directly proportional to the mean flow velocity V and thus the flow rate Q. The generated signal voltage is very low. Signal converter is used to amplify this signal voltage, filter it (separate from noise) and convert it into signals for totalising, recording and output processing. 1. Voltage (Induced voltage is directly proportional to flow velocity) 2. Electrodes 3. Magnetic field 4. Field coils 3

4 Technical Data Measuring System Measuring principle Application range Measured value Faraday s law of electromagnetic induction Electrically conductive fluids Volumetric flow, Mass flow, Velocity etc Design Features Flange version and SMS union Standard as well as higher pressure rating (300#, 600#) Broad range of nominal bore sizes Modular construction The measurement system, consisting of a flow sensor and a signal converter, is available in compact or separate version. More information about the signal converter can be found in the documentation of the signal converter. Nominal diameter 3/8. 24 / DN 10. DN 600 Higher sizes available on request Measurement range m/s / ft/s Measuring accuracy Measuring error IFC 100 converter DN 10 DN 600 / 3/8 24 ±0.3% of mv + 1mm/s Optional Repeatability Operating conditions Temperature Process temperature IFC 021 converter DN 10 DN 500 / 3/8 20 : ±0.5% of mv IFC 300 converter DN 10 DN 600 / 3/8 24 ±0.2% of mv + 1mm/s IFC 011 converter DN 10 DN 600 / 3/8 24 : ±0.5% of mv + 1mm/s Higher accuracy available on request ±0.1% of mv Separate system: PTFE / PFA : C / F Compact system: PTFE / PFA: C / F Separate / Compact system: Soft rubber: C / F Separate / Compact system: Polyurethane: C / F Pressure ASME B16.5 Standard: 150 lbs RF for ASME / 3/8. 24 Option: Higher pressure 300 lbs / 600 lbs DIN (EN ) Standard: PN 40 for DN 10. DN 50 and DN 80 PN 16 for DN 65 and DN 100 DN 150 PN 10 for DN 200. DN 600 Option: Higher pressure rating available on request. JIS Available on request Hygienic connection SMS union available on request for 1. 6 / DN 25. DN 150 4

5 Chemical properties Physical condition Electrical conductivity Liquids Water 20 µs/cm Process fluids 5 µs/cm Permissible gas content 5% by volume Permissible solid content 70% by volume Recommended flow velocity m/s / ft/s Approvals and Certifications Protection category acc. to IEC Standard: IP 67 / NEMA / EN Optional: IP 68 / NEMA 6P Hazardous area CCOE, CMRI - Class I, Gr. IIA / IIB Operating conditions Inlet straight run Outlet straight run Materials 5DN (without disturbing flow, after a single 90 bend) 10DN (after 2 x 90 bends) 10DN (behind a control valve) 2DN Measuring tube Standard: SS 304 Optional: SS 316, SS 316L, SS 304L Liner Standard: PTFE for 3/8 24 / DN 10 DN 600 PFA: Optional for 1. 8 / DN 25. DN 200 Soft Rubber: Optional / DN 50. DN 600 Polyurethane: Optional for 1. 1 ½ / DN 25. DN 40 Other liners (ETFE etc) available on request Sensor housing Standard: SS 316, PU coated for 3/8. 6 / DN 10. DN 150 Standard: Sheet Steel, PU coated for / DN 200. DN 600 Optional: SS 304, SS 316, SS 304L, SS 316L Flanges Standard: Carbon Steel PU coated Optional: SS 304, SS 316, SS 304L, SS 316L Process connection size Meter size: 3/8 / DN 10 Connection size: ¾ / DN 20 Meter size: ½ / DN 15 Connection size: 1 / DN 25 Meter size: ¾. 24 / DN 20. DN 600 Connection size same as meter size Measuring electrodes Standard: Hastelloy C Optional: Platinum, Tantalum, Nickel, Titanium, Monel, SS 316, SS 316L etc Grounding rings Standard: SS 316 Optional: SS 316L, Hastelloy C, Titanium, Tantalum, Nickel, Graphite etc Optional: Grounding rings with neck for slurry applications Grounding electrodes Available optionally in above material Cable glands Standard: ½ NPT Single compression Nickel plated Brass Optional: Double compression on request in Nickel plated Brass, SS 304, SS 316 Optional: ¾ ET Double compression Nickel plated Brass, SS 304, SS 316 Electrical Connections Signal Cable Signal cable A Only for remote systems Standard cable: Double shielded Standard length: 10 m Maximum: 600 m / 1950 ft (depending on electrical conductivity) 5

6 Technical Information Selection of meter size Full scale range Meter size Q 100% in m³/h DN inch v = 1 m/s 2.5 1/ / / / / / ½ The optimum flow velocity should be 2-3 m/s or 6-9 ft/s, for products with solids contents between 3 and 5 m/s or 9 and 15 ft/s. The exact flow velocity can be determined from the columns in the tables for v=1m/s as shown in the following examples Example for m³/h Meter size: DN 80 Desired measuring range: 55m³/h From the table obtain for v = 1 m/s the flow rate of m³/h at DN 80. v = 55m³/h x 1 m/s 18.10m³/h Preferred locations Suggestions for installation Horizontal pipe run Install in slightly ascending pipe section Open feed or discharge Install in low section of pipe Highest point of pipe run (Air bubbles collect in measuring tube, faulty measurements!) Downpipe "zero" flow, velocity, pipe drained, faulty measurements! Grounding rings The instrument must be grounded for proper functioning as well as to provide safety against electric shocks. Such a grounding system is lacking in the pipes with internal lining / coating or plastic pipes. In such cases, grounding rings must be fitted on both sides of the primary head. Grounding rings also function as liner protectors and available below types in various material of construction. 1. Grounding ring type 1 2. Grounding ring type 2: Prevents damage to liner during transportation and installation 3. Grounding ring type 3: With cylindrical neck, prevents damage to liner when handling abrasive media 6

7 Dimensions and Weights DN 10 DN 40 / 3/8 1 ½ DN 50 DN 600 / 2 24 Size A D E Approximate Weights ANSI 150 DIN PN40 DIN PN16 DIN PN10 ANSI/DIN mm inch mm inch mm inch Kg lbs Kg lbs Kg lbs Kg lbs 3/8"/ /2"/ /4"/ "/ /4"/ /2"/ "/ /2"/ "/ "/ "/ "/ "/ "/ "/ "/ "/ "/ "/ "/

8 KROHNE Marshall Pvt. Ltd. A-34/35, MIDC, Industrial Estate, 'H' Block, Pimpri, Pune India. Tel.: 91(0) Fax: 91(0) ksales@forbesmarshall.com IFS 4000 Sales and Service Network Head Office: Jamshedpur A 34/35 MIDC Estate, 59, Rajendra Nagar, H Block, Pimpri, Jamshedpur , Pune , India Jharkhand. Tel: Tel : Fax: Telefax : khole@forbesmarshall.com Kolkata Ahmedabad 5A Orient Row, Forbes Marshall Kolkata Shetoor Bunglows, Tel : Opp. Drive in Petrol Pump, Fax : Near Chandandwar Hospital Mumbai T V Tower, 107, Mahatma Gandhi Road, Ahmedabad Mumbai Tel : Tel : Fax : Fax : Alibag Nagpur Pent House No.1, 50, 'Asha', 2nd floor, Bafna Baug Complex-B, Lendra Park, New Ramdaspeth, Behind Big Splash Hotel Nagpur Chendhare, Tel : Alibag Telefax : Tel : (O) Fax : (O) Navi Mumbai Tel : (R) 101/102, Building No: 4, Sector: 3, Millenium Business Park, Bangalore Mahape, Navi Mumbai No.373, HBR Layout Tel: / Stage-1, Block II, A Main, Fax: Kalyangar Post Bangalore Pune (Land Mark: Near Hennur P O Box No.29 Depot/Petrol Bunk) Mumbai-Pune Road, Tel: / Kaswarwadi, Pune Fax: Tel: Fax: Chandigarh SCO # 77, Top Floor, Surat Sector 38-C, Chandigarh 7B Ground Floor, Tel : Navchetan Society, Fax : Opp. Krushimangal Hall, Ring Road, Chennai Surat , Poonamalle High Road, Telefax : # 3B, 3rd Floor, Calve Chateau, Bldg., Kilpauk, Chennai Vadodara Tel : , , Shreeji Krupa Society, Fax : Gotri Road, B/H Kalpavruksha Complex, Coimbatore Subhanpura P.O., Flat No. 4C, Vadodara Classic Garden Apartment, Tel : Trichy Road, Direct : Coimbatore Fax : Tel : Fax : Visakhapatanam 403, Crescent Towers, Delhi Opp. Enadu, Seethammadhara, Anupama Arcade, Visakhapatnam nd Floor, Tel : Opp. Samachar Apartments, Fax: Mayur Vihar Extn., Phase I, New Delhi Tel : Area Representaives Fax: Bhopal Hyderabad Lucknow Plot No. A-19/2 andt-4/2 Madurai I.D.A. Nacharam, Pondicherry Hyderabad Kanpur Tel : 91 (0) Trichy Fax : 91 (0) BANGLADESH Forbes Marshall Pvt. Ltd. Rupsha Tower, C-3, 3rd Floor 7, Kemal Attaturk Avenue, Road#17, Behind Brac Bank, Dhaka - Bangladesh Tel: bangladesh@forbesmarshall.com SRI LANKA Forbes Marshall Lanka Pvt Ltd 12/5A, 1/1, Robert Gunawardane Mawatha Kirulapone,Colombo 06 Tel: Fax: fmlanka@forbesmarshall.com NEPAL Ekta Engineering and Marketing Pvt. Ltd. GPO Box Kathmandu Nepal Tel: / Fax: ekta@ecomail.com.np Doc#CIG/0311/3/V1.R1 8