Ultrasonic velocity water level meter, ultrasonic flow meter Xiao Bian: Mil Albert - Dong an overview of ultrasonic flow rate of water level measuring instrument using ultrasonic Doppler principle to measure the flow rate of water in rivers, streams, Nullah and large pipes, water depth and water temperature. The instrument is suitable for use in emissions and waste water, clean streams, drinking water or even seawater measuring relevant parameters. Second, the ultrasonic flow rate of the water level measuring instrument working principle of the ultrasonic flow rate of the water level meter (Average, thereby reducing flow disturbances), and the signal processing circuit comprises an ultrasonic assembly. The instrument is placed at or near the bottom of the water area, measuring the water depth to the water level of the instrument, a 12V DC power cable connected to the instrument and power up. The use of ultrasound Doppler principle to measure the flow rate, which requires the suspended particles in the water or small bubbles reflect the ultrasonic detector signal. The hydrostatic sensor measuring the water level, power supply signal cable ventilation effect, the atmospheric pressure on the surface of the water as the water static pressure sensor measuring the reference pressure. , Ultrasonic flow rate of water level measuring instrument parameter name parameter flow rate range :21-4500mm / S, bi-directional accuracy: measurement value ± 2%; resolution: 1MM / S water level accuracy: ± 0.25% (after calibration) communication RS- 232 control output trigger cable 15M, ventilation power external battery 12V DC Operating temperature water temperature 0-60 ° C Case Material PVC length × width × high 290 × 70 × 25MM Weight 850G (with 15M cable 2KG)