HOME > 필드버스기술 > Fieldbus Products News   Ultrasonic Liquid Flow meter MULF100 series, suitable for liquid measurement and Heat/Energy measurement 관리자 2020.01.24 790 SMART TYPE ULTRASONIC LIQUID FLOW METER MULF100 SERIES , TIME TRANSIT CLAMP-ON TYPE WALL MOUNT, LOW COST AND COMPACT DESIGN <<<<< Features >>>>> *  Compact and light weight *  Economical price *  Parameter setting and verificatiob by 4-push buttons *  Input power DC 8~36 V or AC 10~30 V................... *  ....... (AC110~220V optional) *  Low consumption power , less than 1.5 Watt   *  High Accuracy : ±1.0% FS *  Wide measuring range : DN15~DN6000 *  High reliability , applied with low voltage, multiple pulse, *  long life cycle *  Dual balance signal differential receiver/driver circuit *  to avoid interference of         *  converter, TV tower, high voltage line etc. *  Automatical record : totalizer 512 days / 128 months * / 10 years * Far transmission distance, RS485 support wireless * network, GPRS module * Support for heat/energy measurement * by temperature sensor <<<<<  General Description >>>>> * MULF100 series is an advanced wall mount type ultrasonic liquid flow meter by the * technology of time transit signal transmission and receiving using the clamp-on onto * outer pipe while not cutting the pipe. It measures flow velocity of 0 to 10 meter per * second of liquids. * The module of ultrasonic flow meter is full-digitally designed to measure flow and * heat/energy long-term on the line. <<<<<  Measuring Principle >>>>> * While the ultrasonic is transmitted into the pipe the fluid being flown, ultrasonic, which * is rapidly transmitted by flow of fluid (tab Up-stream→Down-stream),  is proportional * as sound speed plus amount of fluid velocity.   * On the other hand  the ultrasonic, which is transmitted reversely (tba Down-stream→ * Up-stream), is slowly transmitted by the difference of sonic and speed and fluid * velocity, therefore there is a time difference Δt (tab-tba) generated. As delta time (Δt) * generated here is a relative coefficient of fluid velocity, while considering this as a * basic, estimating of averaged velocity (V), cross-sectional area of pipe (d), and then *  the processing to make flow rate (Q) again. Here ultrasonic has a sonic's property, * and then pass through inside pipe depending on fluid's inherent velocity. Ｑ = A x Vb <<<<< Technical Specification >>>>> * Principle : Ultrasonic Time Difference Transit Relative Coefficient * Accuracy : ± 1.0% FS * Repeatability : ± 0.25% * Operation : 4-key Push Buttons   * Output : 4-20 mA DC * Communication Protocol : Mosdbus RS484 RTU * Auxillary Output : OCT 1ea, Relay Output 1 ea * Power Supply :  DC 8~36 V or AC 10~30 V ( AC110-220V option) * Consumption Power :  ＜1.5 Watt * Velocity Range :  0.01 ~10.0 mps bi-directional * Resolution : 0.25 mm/s * Sensitivity : 0.003 m/s * Measuring Liquid : Clean Liquid, or Somewhat turbidity Liquid (Turbidity <10000 ppm) * Enclosure : Wall Mounting * Display :  Alphanumeric Character LCD * Ingress Protection :  IP66 * Enclosure Material : ABS Engineered Plactic / Others on option * Working Temperature  : -40~+90 ℃  Standard (-40~160 ℃ On Special Option) * Data Logger : Totalize 412 days/ 128 months / 10 years.   Last 64 times when * power-off * Long Distance Transmission :  Wireless Network by RS485에, Support  GPRS Module * Dual balance signal differential receiver/driver circuit to avoid interference of converter,   * TV tower, high voltage line * Heat/Energy Measurement Function : Support for heat/energy measurement by * temperature sensor * Line Size :: DN15~DN6000 * Pipe Material : Steel, Stainless Steel, Cast Iron, Coper, PVC, Aluminunm,  and all other * dense pipes ///////////////////////////////////////////////////////////////////////////////////// CATALOG-MULF100-EN-1910-1.pdf

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