Handhold Ultrasonic Flow Meter

Features High Accuracy measuring Accuracy: ±1%, linearity: 0.5%, repeatability: 0.2%Non-intrusive measuring Non-intrusive, clamp-on transducer, no pressure drop,no pipe disturbanceWide measuring range Several types transducer for selection, measuring pipe size from DN15mm to DN6000mmLight weight Size: 210×90×30mm, weight: only 0.5kgLarge capacity battery Built-in rechargeable Ni-MH battery, provide over 12 hours of continuous operationLarge LCD display Display instantaneous flow, accumulated flow (positive, negative and net), velocity, working status etcBuilt-in data logger Built-in 24K data logger, store over 2000 lines measuring dataRS-232 serial interfaceStandard configuration Main Unit Medium transducer TM-1Signal CableAdapterCarrying caseStretcherTape rulerData lineUser ManualUltrasonic coupling agent General Specifications ItemsSpecificationLinearity0.5%Repeatability0.2%AccuracyBetter than ±1% ,for velocity above 0.03m/sResponse Time0-999 second, user-configurableFlow Range±32m/sMeasuring Pipe Size15mm 6000mmUnitsEnglish (U.S.) or metricTotalizer7-digit totalizer for net, positive and negative flow respectivelyLiquid TypesAny single uniform liquid which can transmit ultrasonicSecuritySetup values Modification Lockout. Access code needs unlockingDisplay4×16 lettersCommunication InterfaceRS-232 interface. 75-57600bps, compatible with Fuji ultrasonic flowmeter and other UFM on enquiry.TransducersModelTM-1 for standard, other 4 models for optionalTransducer CableStandard 5mx2 or can be extended to10m x 2Power Supply3 AAA built-in Ni-MH batteries (for over 12 hours of operation). 100V-240VAC adapterData LoggerBuilt-in data logger can store over 2000 lines of dataManual Totalizer7 digit, calibrating by keyHousing MaterialABSSize210×90×30mmHandset Weight500g (include battery) Principle of Measurement The LRF-2000H ultrasonic flow meter is designed to measure the fluid velocity of liquid within a closed conduit. The transducers are a non-contacting, clamp-on type, which will provide benefits of non-fouling operation and easy installation. The LRF-2000H transit time flow meter utilizes two transducers that function as both ultrasonic transmitters and receivers. The transducers are clamped on the outside of a closed pipe at a specific distance from each other. The transducers can be mounted in V-method where the sound transverses the pipe twice, or W-method where the sound transverses the pipe four times, or in Z-method where the transducers are mounted on opposite sides of the pipe and the sound crosses the pipe once. This selection of the mounting method depends on pipe and liquid characteristics. The flow meter operates by alternately transmitting and receiving a frequency modulated burst of sound energy between the two transducers and measuring the transit time that it takes for sound to travel between the two transducers.