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Working Principle The Transit Time Flowmeter utilises two transducers that function as both ultrasonic transmitters and receivers. The transducers are clamped on the outside of a closed pipe or inserted in the pipeline by use of isolating ball valve assembly at a specific distance from each other. Transit Time Flowmeters measure the time it takes for an ultrasonic signal transmitted from one sensor, to cross a pipe and be received by a second sensor. Upstream and downstream time measurements are compared. With no flow, the transit time would be equal in both directions. With flow, sound will travel faster in the direction of flow and slower against the flow. The liquid velocity (V) inside the pipe can be related to the difference in time of flight (rt) through the following equation: V = KxDxrt where V : Liquid velocity K : Constant D : Distance between the two transducers rt : Difference in time of flight UFM 6710 UFM 6720 UFM 6730 2
Ultrasonic Flowmeter Series 6700 Technical Specifications : Series 6700 Parameters UFM 6710 UFM 6720 UFM 6730 Transmitter Power supply Velocity Display Units Totaliser Accuracy Repeatability Dimensions Weight Security Suited temp. - Std. Suited temp. - High Pipe size Dimensions Weight Cable length Flexible belts Portable case S Transducer M Transducer L Transducer S Transducer M Transducer L Transducer S Transducer M Transducer L Transducer 24 V DC ±20% 110 V AC ±15% 240 V AC ±15% ±12 m/sec. Bidirectional 2 lines, 16 characters, LCD with back light, flow rate, velocity, totaliser User configurable English/Metric FWD, NET, REV, BATCH 3 3 (Gallons, ft, Barrels, lbs, m ) 4-20 ma DC Std.* ±1% of reading @ rate >0.5 m/sec. 0.2% of Span 251x190x96 mm <2.5 kg Keypad lockout, access code enabled -40 C to 120 C -40 C to 250 C 15-80 mm 50-700 mm 400-4570 mm 45x30x30 mm 60x45x45 mm 80x70x55 mm < 0.3 kg < 0.5 kg < 1.0 kg 6 m Std. Can be extended up to 300 m SS belt according to pipe size NA * Please refer to order code for options. Transducer 3 AAA NiMH built-in battery (12 hours of operation) & 100-240 V AC for the charger ±12 m/sec. Bidirectional 4 lines, 16 characters, LCD with back light, flow rate, velocity, totaliser User configurable English/Metric FWD, NET, REV, BATCH 3 3 (Gallons, ft, Barrels, lbs, m ) RS 232 ±1% of reading @ rate >0.5 m/sec. 0.2% of Span 204x90x30 mm <0.5 kg Keypad lockout, access code enabled -40 C to 120 C -40 C to 250 C 15-80 mm 50-700 mm 400-4570 mm 45x30x30 mm 60x45x45 mm 80x70x55 mm < 0.3 kg < 0.5 kg < 1.0 kg 6 m Std. Can be extended up to 25 m SS belt according to pipe size Size - 463x383x103 mm 24 V DC ±20% 110 V AC ±15% 240 V AC ±15 % ±12 m/sec. Bidirectional 2 lines, 16 characters, LCD with back light, flow rate, velocity, totaliser User configurable English/Metric FWD, NET, REV, BATCH 3 3 (Gallons, ft, Barrels, lbs, m ) 4-20 ma DC Std.* ±1% of reading @ rate >0.5 m/sec. 0.2% of Span 251x190x96 mm <2.5 kg Keypad lockout, access code enabled -40 C to 120 C -40 C to 250 C >65 mm (Note : Long sensors available on request for thick pipelines) 186 mm with 20 mm bore size < 1.5 kg 6 m Std. Can be extended up to 300 m NA NA 3
Ordering Code : UFM 6710/6730 M1 - UFM 6710 M2 - UFM 6730 Power supply P1-24 V DC P2-110 AC P3-240 V AC P4 - Solar powered P5 - Any other (Pl. Specify) View Software Y - Required (select communication interface) N - Not required For UFM 6710 Sensor (Standard) S - Small 15-80 mm M - Medium 50-700 mm L - Large 400-4570 mm OR Sensor (High Temp.) HS - Small 15-80 mm HM - Medium 50-700 mm HL - Large 400-4570 mm For UFM 6730 Sensor R - Regular pipelines E - Extended Data Logging 1 - Required (Pl. specify) 2 - Not required Sensor Cable 6-6 m (Std.) 10-10 m M - Any other length (Pl. specify) Communication Interface G1 - Not required G2 - GSM G3 - GPRS G4 - HART OP1-4 - 20 ma DC OP2 - Pulse OP3 - Relay OP4 - RS 232 (Modbus RTU) OP5 - RS 485 (Modbus RTU) OP6 - Combinations of above (Pl. specify) Ordering Code : UFM 6720 Sensor (Standard) S - Small 15-80 mm M - Medium 50-700 mm L - Large 400-4570 mm N - None C - RS 232 Data Logging 0 - Not required 1 - Required (Pl. specify) Sensor Cable 6-6 m (Std.) 10-10 m M - Any other length (Pl. specify) OR Sensor (High Temp.) HS - Small 15-80 mm HM - Medium 50-700 mm HL - Large 400-4570 mm 4
UFM 6740 Ultrasonic Water Meter This is a battery-powered, transit-time Flowmeter utilising advanced digital processing technology. The meter contains no moving parts and does not require any external power. It also has advantages such as ultra-low power consumption, high accuracy and reliability. The meter is designed for easy installation. It has the same conduit length with industrial mechanical water meter, but can be used just as conveniently as a mechanical water meter. Benefits Long term stability and accuracy over a wide range of conditions High reliability and minimum maintenance requirement Maintenance-free meter where no external power sources are available Communication port permits transfer of data from remote stations to central system via GSM - GPRS Modem Self-adjusting transducer receiving circuit continually adapts to changing pipe diameters due to scaling or corrosion Fast response to flow transits Available with AMR function Battery life - 5 years Unique housing design rated to IP 68 On-board self diagnostic function and fault indicator Technical Specifications : UFM 6740 Ultrasonic Water Meter Parameters Technical characteristics Accuracy Repeatability Display Communication interface Operation Sampling period Environment temp. Water temp. Power supply Enclosure class Pipe size Flange connection Specifications Low power consumption, digital process technology with stable & permanant PiezoSeal sensor Better than ±1% of reading Better than 0.2% of span Total flow, flow rate, velocity, working time & date, signal intensity, quality & battery status RS 485,4-20 ma, Pulse for total flow (All outputs need external power supply 24 V DC) GSM, GPRS (Can be battery powered) Magnetic key & inside key pad available 0.5 sec. 0 Up to 65 C 0 5 to 70 C 3.6 V Lithium battery (Up to 5 years life) IP 68 DN 20-600 DIN, ANSI 150, BS 5
Ordering Code : UFM 6740 Transmitter Type Line Size Design of Measuring Sensor I - Integral 0020-20 (¾ ) M1 - Flange DIN R - Remote 0025-25 (1 ) M2 - Flange ANSI 150 0032-32 (1.25 ) M3 - Flange IS 1538 0040-40 (1.50 ) M4 - Flange BS 10 Table D/E 0050-50 (2 ) M5 - Any other (Pl. specify) 0065-65 (2.5 ) 0080-80 (3 ) Measuring Tube View Software Y - Required (select communication interface) N - Not required 0100-100 (4 ) 0125-125 (5 ) 0150-150 (6 ) 0200-200 (8 ) 0250-250 (10 ) 0300-300 (12 ) 0350-350 (14 ) 0400-400 (16 ) 0500-500 (20 ) 0600-600 (24 ) Communication Interface C1 - Not required C2 - GSM C3 - GPRS T1 - CS / MS T2 - SS 304 T3 - SS 316 Flange Material F1 - CS / MS F2 - SS 304 F3 - SS 316 F4 - Any Other (Pl. specify) * OP1-4 - 20 ma DC OP2-0 - 20 ma DC Protection Class for Sensor A - IP 65 B - IP 68 OP3 - Pulse output OP4 - RS 232 (Modbus RTU) OP5 - RS 485 (Modbus RTU) (* All above outputs need external 24 V DC supply) Services for you Calibration We provide Flowmeter Calibration Facility at our works. The facility uses the primary method of measuring the water flow by gravimetric principle or comparison method. The facility is designed for calibration of Flowmeters under controlled and stable flow conditions. The lab is as per ISO 4185. It has a capacity from 10 mm up to 450 mm. Rent a Flowmeter Adept has a ready range of Ultrasonic Flowmeters available for rent for any line size. All rentals are calibrated, quality checked and backed by our experienced manpower. With experience of more than 15 years, we will help you in calibrating your line flow for any liquid. NABL accreditation is awaited. 6
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