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OMEGA FD400 SERIES ULTRASONIC FLOW METER

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01 / 12 / 2019
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Detail OMEGA FD400 SERIES ULTRASONIC FLOW METER

The FD-400 Series ultrasonic doppler flowmeters measure the flow of liquids that contain sound reflectors, suspended solids, or gas bubbles larger than 100 microns. These sophisticated instruments automatically adjust filtering and gain settings to produce reliable readings in a wide range of liquid and reflector conditions. The FD-400 flowmeter transmits ultrasonic sound through the pipe wall or from the probe tip into the flowing liquid by using piezoelectric crystals contained in the transducer and probe tip. The sound is then reflected by sonic reflectors suspended in the liquid and recorded by the receiver. If the sonic reflectors are moving within the sound transmission path, sound waves will be reflected at a frequency shifted ( Doppler frequency) from the transmitted frequency. The difference between the 2 frequencies is directly proportional to the speed of the sonic reflectors, resulting in a liquid flow rate that is converted to various user-defined units. Configuration of the FD-400 is accomplished via the front-panel keypad. A 2-line backlit LCD displays rate and total in user-selected units. Power supply options include AC and DC. Optional outputs include 4 to 20 mA, relays, and rate pulse. Two transducer styles are available. The FD-400C clamp-on, non-intrusive transducer is recommended for most metal or plastic pipes. The FD-400C has a NEMA 6P ( IP68) rating and is available in a high-temperature version, “ HT” . The user can place these clamp-on transducers up to 305 m ( 1000' ) from the display enclosure. The FD-400I insertion probe transducer should be used on piping systems that do not permit ultrasonic penetration. The FD-400I inserts into the pipe wall and comes into direct contact with the flowing liquid. Features: Non-Intrusive, Clamp-On Transducer for Most Pipes from 6 to 3050 mm ( ¹ Dƒ to 120" ) Insertion Probe Transducer Also Available Wide Measuring Range of 0.05 to 9 mps ( 0.15 to 30 fps) Accuracy: ± 2% of Calibrated Span Configuration and Total Stored in Non-Volatile Flash ROM NEMA 4X ( IP66) Outdoor Enclosure Provisions for Up to 4 Meters in a Single Piping System NIST Certificate Specifications: General: Measuring Principle: Doppler ultrasonic Flow Velocity Range: 0.05 to 9 mps ( 0.15 to 30 fps) Accuracy: ± 2% FS over calibrated span Liquid Types: Liquids containing 100 ppm of useful sonic-suspended reflectors greater than 100 microns Monitor: Enclosure: NEMA 4X ( IP66) , polycarbonate, stainless steel, brass, plated-steel mounting brackets Dimensions: 178 H x 146 W x 99 mm D ( 7.00 x 5.75 x 3.88" ) Power Supply: 115/ 230 Vac, 50/ 60 Hz ± 15% @ 5 VA max; 12 to 28 Vdc @ 2.5 VA max Display: 2-line x 8-character LCD; LED backlighting; top row, 7-segment 18 mm ( 0.7" ) ; bottom row, 14-segment 9 mm ( 0.35" ) ; 8-digit rate, 8-digit total ( resettable) Units: User configured— feet, gallons, ft3, mil-gal, meters, liters, mil ft3, m3, mil-liters, acre-feet, oil barrels ( 42 gallon) , liquor barrels ( 32.5 gallons) , lb, kg Rate: Interval— second, minute, hour, day Totalizer exponent: E-2 to E+ 6 Response Time: User selectable, 1 to 60 seconds Outputs: 4 to 20 mA, 800 © max; internal or external power supply; 12-bit resolution; optically isolated Dual Relay: Independently configured; form “ C” , 200 Vac @ 0.5 A resistive; rate alarm, totalizer pulse, error Rate Pulse: 2 output types— 500 mVac or open collector; 2500 Hz max; 12-bit resolution; 500 mV AC into 2 k© min; open collector 1 A at 100 V max Multiple Meters: Synchronization provision included— used for multiple meter/ single pipe system; up to 4 meters may be interconnected to 30 m ( 100' ) apart Keypad: 4 pushbutton keys Operating Temperature: General purpose, 40 to 85° C ( 40 to 185° F) Transducers: Type: Compression-mode ultrasonic, 625 kHz Housing Material: Standard Clamp-On: NEMA 6P ( IP68) , -40 to 100° C ( -40 to 210° F) , CPVC, Ultem® , nylon, PVC ( cable jacket) , aluminum ( small pipe) . High-Temp lamp-On: NEMA 4 ( IP65) , -40 to 200° C ( -40 to 400° F) , Vespel® , anodized aluminum, nickel-plated brass, PFA ( cable jacket) . Doppler Probe: NEMA 6 ( IP67) -40 to 100° C ( -40 to 210° F) ; 700 psi ( 48 bar) max, 316 SS, Ultem® , FKM, nylon, PVC ( cable jacket) .Optional Flexible Armored Conduit: Zinc-plated steel, PVC.Cable Length: Standard Lengths: 6 m ( 20' ) standard
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