ULTRASONIC FLOWMETER < S (Standard Type)> DATA SHEET

Transcription

1 SERIES ULTRASONIC FLOWMETER < S (Standard Type)> DATA EET This flowmeter is a clamp-on type ultrasonic flowmeter based on transit-time measuring method. Thanks to microprocessor based electronics, the flowmeter can be easily configured from the front keyboard to specific applications. The flowmeter is suitable for liquid flow measurements for pipe size 3mm to 6mm diameter. The Flowmeter is a compact and light-weight instrument incoporating the latest electronics and high speed digital signal processing technologies (3bit MPU), realizing high performance and easy operation. FEATURES. Compact and light-weight The adoption of the latest electronics and digital signal processing technologies has reduced the size and weight of the converter to almost half, in comparison with traditional model.. Full variety of sensors including explosion-proof type The flowmeter can be used with various types of sensors applicable for wide range of pipe size (ø3 to ø6mm) and fluid temperature (-4 to + C). Explosion-proof type per CENELEC Std. can be also available. 3. High accuracy The flowmeter is designed for high accurary (better than ±.% of rate) by dynamic correction of fully-developed flow profile. Reynolds Number is calculated and a meter factor (K) is automatically applied for best accuracy at all flow velocities. Further, the adoption of new sound velocity measurement system permits measurements of fluids of unknown sound velocity. Moreover, affection from fluid temperature and pressure is negligible (Auto-Temp./Press. compensation). 4. Excellent resistance against aerated flow Fuji's unique ABM feature improves measurement reliability for different flow like slurries, sludge, raw sewage and bubble-contained flow (acceptable up to air bubble of % volume at m/s velocity). 5. Quick response With the use of high-speed micro-processor suited for digital signal processing, the fast response time is realized. 6. Multi-lingual The following languages are supported for display: Japanese (Katakana), English, German and French 7. Excellent performance and easy operation Large LCD and function keys are allowing easy configuration and trouble shooting. LCD with back light Easy mounting of sensor Trouble shooting SPECIFICATIONS Small sensor (FLW) Converter (FLV) Operational specifications System configuration: The system is composed of a sensor (Model FLW or FLD ) and a converter (Model FLV 3) As for explosion-proof type, the converter should be located in safe area. Application: Liquid flow through which ultrasonic signal can be transmitted (Water, sea water, oil and fluid of unknown sound velocity) Turbidity; deg(mg/l) or less Fluid temperature; 4 to +8 C for small (FLW), middle (FLW4) and large sensor (FLW5) 4 to +6 C for explosionproof sensors (FLW, 4 & 5) 4 to + C for small diameter sensor (FLD) 4 to + C for high temperature sensor (FLD3) Type of flow; Well-developed turbulent or laminar flow in a full-filled pipe EDSX6-7e Date Jul. 5,

2 Measurable flow pipe: Size; 3mm to mm dia. with small diameter sensor (FLD) 5mm to 4mm dia. with small sensor (FLW) and high temp. sensor (FLD3) mm to mm dia. with middle sensor (FLW4) mm to 6mm dia. with large sensor (FLW5) Material; Carbon steel, SS, cast iron, PVC, FRP, asbestos, copper, aluminum, etc. Lining; Tar epoxy, mortar, rubber, or others Straight pipe length (min); x D upstream and 5 x D down stream required (D: Pipe diameter) Refer to JEMIS-3 for details. JEMIS: Japan Electric Measuring Instruments Manufactures Associ-ation s standard. Velocity: to ±3m/s (bidirectional flow) Power supply: Two models are availble to 4V AC ±% 5/6Hz, or to 3V DC Power consumption: Approx. VA Maximum cable length for sensor: 5m Ambient Temperature: Converter; to +6 C Sensor; to +6 C Ambient humidity: 9%RH or less. Hazardous condition: Nemko ATEX54X Ex. G, EExmT6, Tamb=6 C per CENELEC Std. EN54 & EN58 for explosion-proof sensors FLW, 4 & 5 combined with the converter FLV specific to them. Grounding: Class D (less than ohm) in case of need As for explosion-proof type, groundings of sensors and converter should be done. Function/performance specifications Analog output signal: One 4 to ma DC current output Max. load resistance kω Digital status output: transistor outputs available Open collector output; 3V DC,.A Configurable to provide following information selected. Total pulse Flow switch Over flow Range change-over Flow direction Range over Memory alarm Receiving signal abnormal Measuring accuracy: Pipe size/3mm to under 5mm ±.3m/s for flow rate: under m/s ±.75% to ±.5% of rate for flow rate: m/s to 3m/s Pipe size/5mm to under 3mm ±.m/s for flow rate: under m/s ±.5% to ±.% of rate for flow rate: m/s to 3m/s Pipe size/3mm up to 6mm ±.m/s for flow rate: under m/s ±.5% to ±.% of rate for flow rate: m/s to 3m/s (Note) Reference conditions are based on JEMIS-3. Response time:.5s or less Communication interface: RS3 C equivalent Baud rate: 4 to 96bps Distance: 5m max. Following information can be sent. Velocity Flow rate Total Alarm output status Indicator display: LCD with back light, 6 letters lines Display language: Japanese (Katakana), English, German or French, selectable Flow rate display function: Display of velocity and flow rate (with flow direction) are selectable, Max: 8 digits Unit; Metric/Inch system selectable Velocity Flow rate Metric system m/s L/s, L/min, L/h, ML/d, m 3 /s m 3 /min, m 3 /h, Mm 3 /d, BBL/s, BBL/min, BBL/h, MBBL/d Inch system Note : The "gal" means US gal. Total value display function: Display of forward or reverse total, are selectable, Max: 9 digits Unit; Metric/Inch system, selectable Metric system Total ml, L, m 3, km 3, Mm 3, mbbl, BBL, kbbl ft/s gal/s, gal/min, gal/h, Mgal/d, ft 3 /s, ft 3 /min, ft 3 /h, Mft 3 /d, BBL/s, BBL/min, BBL/h, MBBL/d Inch system gal, kgal, ft 3, kft 3, Mft 3, mbbl, BBL, kbbl Configuration: The flowmeter is fully configurable from front keyboard by menu-driven software Zero adjustment: Two methods are available Set zero/manual zero adjustment for zero flow Damping for analog output and indication: to s, configurable Low flow cut-off: to 5m/s, configurable

3 Physical specifications Enclosure protection: Small, middle and large sensor/ip67 Small diameter and high temp. sensor/ IP5 Converter/IP65 Mounting: Sensor/Clamped on pipe wall Converter/Wall or pipe mount Acoustic coupler: Silicone grease for high temperature sensor, silicon rubber for others Material: Sensor: Kind Sensor case Guide rail Small diameter Plastic Aluminum+Plastic Small sensor Plastic 34SS+Plastic Middle sensor Large sensor Plastic Plastic High-temperature 34SS Aluminum+34SS Enclosure of converter : Aluminum alloy Sensor cable: Radio frequency co-axial cable RG-58A/U Dimensions and mass of sensors: Kind Dimensions(H W D) Mass Small diameter mm approx..6kg Small sensor 5 8 4mm approx..kg Middle sensor 7 4 6mm approx..4kg Large sensor mm High-temperature mm approx..4kg approx..6kg Dimensions of converter: H77 x W44 x D95mm Mass of converter: approx, 4.5kg DESCRIPTION OF OUTPUT FUNCTION The FLV converter is standard-equipped with the following output functions which can be programmed through key operation. Total pulse output: The measured flow rate is integrated, and upon reaching a predetermined unit rate a single pulse is output. In the case of a forward/reverse flowmeter, the flow rate in each direction is independently integrated and transmitted. Low flow rate cutoff: arbitrarily settable between and 5m/s The integration pulse cycle is settable in a range of 5 pulses/second to pulse /day. Auto multirange output: When the flow rate largely varies between low and high flow rates, output can be done with large output width for the whole flow range by adding the auto multirange function. Either two ranges are selectable, and the minimum range is settable within the measurable range. The measuring range signal is transmitted from the DO terminal. Up to Output % [ma] Q3 Q Basic range Forward/reverse flow rate output: When the flow direction of the fluid changes, then the flow rate can be measured in either direction by adding this function. When the flow of fluid reverses, measurement is done at an arbitrary range set differently from for the forward direction. The flow direction is discriminated by means of the LCD display and DO terminal signal. Ultrasonic pulses are propagated in turn between upstream and downstream sides, and the time difference produced according to the flow is detected whereby the flow rate is measured. Output [ma] 4 Low flow rate cutoff setting QR -Q +Q QF 3

4 MEASURING PRINCIPLE θ Flow velocity V Sensor Upstream-side sensor t t Downstream-side sensor D Converter Output signal Contact signal SCOPE OF DELIVER Converter FLV: Converter Manual Sensor FLW, FLD: Sensor unit Signal cable Mounting chain/ belt/ wire Silicone rubber/ grease (gr) Signal cable FL: Orignal cable ( wires) The transit-time technique uses a pair of sensors with each sensor sending and receiving ultrasonic signals through the fluid. When the fluid is flowing, signal transit-time in the down stream direction is shorter than one in the upstrream direction. As the difference between these transit-time is proportional to the velocity, the flow rate and direction can be measured properly by detecting such time difference. CONFIGURATION () Single-path system (V method) Cable The product conforms to the requirements of the Electromagnetic compatibility Directive 89/336/EEC as detailed within the technical construction file number TN543. The applicable standards used to demonstrate compliance are : EN 55 : 99 Conducted and Radiated emissions CLASSA EN 58- : 99 Radiated immunity, ESD and FBT Detector Converter DC 4 to ma Contact signal up to points () Single-path system (Z method) Cable Detector Converter DC 4 to ma Contact signal up to points DETECTER SELECTION GUIDE Fluid temperature ( C) High-temperature sensor (FLD3) 8 Small diameter sensor (FLD) Small sensor (FLW) Middle sensor (FLW4) Large sensor (FLW5) Pipe size (mm)

5 CODE SMBOLS <Converter> F L V S 3 - S F L <Signal cable> T E F Description Enclosure (4th digit code) Outdoor immersion-proof case Power supply (5th digit code) to 4V AC±%, 5/6Hz to 3V DC Transistor output (6th digit code) Points Analog output (7th digit code) system Synchronism (9th digit code) Conduit connections (th digit code) G/(Female screw) with water-proof connection Option (th digit code) Tag name plate Use for explosion-proof sensors Use for explosion-proof sensors with Tag name plate Description Type of sensor (4th digit code) Small, middle and large sensor (FLW/4/5) Small dia. and high temp. sensor (FLD /3) Cable length (5, 6 and 7th digit) 5m m 5 m m 5 m 3 m 35 m 4 m 45 m 5 m 55 m 6 m 65 m 7 m 75 m 8 m 85 m 9 m 95 m m m m 3 m 4 m 5 m Note: No need to order signal cable of FL when your ordering submergence-proof or explosion-proof type sensor. A pair of cables is provided as one unit. <DETECTOR> Standard type F L W Description A Moulded type F L W A Type Small sensor (φ5 to φ4) Middle sensor (φ to φ) Large sensor (φ to φ6) Large sensor (φ to φ6) Option Tag name plate Mounting method Standard Z method (Note) Signal cables are not provided with detector. Signal cable FL should be ordered separately. B C D E F G H J K L M N P Q R Description Type Small sensor (φ5 to φ4) Middle sensor (φ to φ) Large sensor (φ to φ6) Large sensor (φ to φ6) Use Submergence-proof type Explosion-proof type per EN58 Option Tag name plate Special cable m Mounting method Standard Z method (Note). High turbid fluid or scales sticking on the internal wall of pipes may interrupt the ultrasonic propagations. Previous check with a portable type ultrasonic flowmeter is recommended.. In case of cast iron pipes or pipes with lining, the Large sensor is recommended rather than the Middle sensor. 3. If the pipe has poor inside surface conditions or highly attenuating fluids, you may not be able to a reliable signal, therefore you should use the FLW5 sensor. Small diameter and high-temperature sensor F L D S - 3 S Description Type Small diameter sensor (φ3 to φ) High-temparature sensor (φ5 to φ4) Belt and Coupler Fixed type Special cable 5

6 CONNECTION DIAGRAM <CONVERTER> AC power supply <DETECTOR> G G 3 L N G + Analog signal Control signal DC power supply 3 + to converter to upstream-side sensor to downstream-side sensor OUTLINE DIAGRAM (Unit:mm) - ø 9 7 Mounting size ( 5) (5A 5A) Sensor Name plate Pipe Frame end Ground terminal CONVERTER : FLV Saddle Scale(inch) Scale(mm) Chain & spring Mounting device: SS chain & SS spring DETECTOR : FLW (Small sensor) BNC connector Distance between two sensors ~8 Lock nut 3 Cursor Element holder 36 9 max 5.5 Mounting device: SS belt 6 DETECTOR : FLD (Small diameter sensor)

7 Detector 7 4 Scale (inch) Scale (mm) Saddle Ground terminal 6 Wire rope 4 Mtg.spring BNC connector ø 9 DETECTOR : FLW4 (Middle sensor) Distance between two elements Lock nut 53 Element holder 4 4 Cursor DETECTOR Wire rope DETECTOR : FLW5 (Large sensor) DETECTOR Detector Ground terminal Wire rope Mtg.spring 93 Ground terminal Wire rope Mtg.spring B 6 A 6 4 Mtg.spring ø max 5max Mounting device: SS belt 5 ø 9 DETECTOR : FLD3 (High-temperature sensor) DETECTOR : FLW 4 (Small/Middle explosion-proof sensor) Type FLW FLW4 A 68 4 B 9 DETECTOR : FLW5 (Large explosion-proof sensor) ø 9 7

8 INSTALLATION INSTRUCTION FOR EXPROSION-PROOF TPE SENSORS Pipe fullfilled with liquid Coax Cable ( RG58A/U or equivallent ) Ci nf Li 5 µh Operating voltage:max. V to Conveter Model FLV Sensors Model FLW 5VAC/5VDC L N Entity Parameters Ci 8nF Li = Hazardous area Note : All groundings are in accordance with class D (less than ohm) Safe area System certification: EEx m ll T6 Ambient temperature: - to +6 C for all units Liquid temperature: -4 to +6 C Pipe fullfilled with liquid Coax Cable ( RG58A/U or equivallent ) Ci nf(total) Li 5 µh(total) Conveter Model FLV Sensors Model FLW CENELEC Certified Junction Box 5VAC/5VDC L N Entity Parameters Ci 8nF Li = Hazardous area Safe area Note : Any certified junction box conforming to the types of protection listed in EN54 can be used to relay the co-axial signal cables. Caution on Safety *Before using this product, be sure to read its instruction manual in advance. Head office -, Osaki -chome, Shinagawa-ku, Tokyo, 4-3 Japan Sales Div. International Sales Dept. No., Fuji-machi, Hino-city, Tokyo, 9-85 Japan Phone: , 6 Fax: , Information in this catalog is subject to change without notice. Printed in Japan