SmartMeasurement – Doppler Open Channel Flow Meter [ALSONIC-DAVM]

The Doppler Open Channel Flow Meter area velocity flow meter is designed for applications in full or partially full pipes 150 – 6000 mm (6-240 inches) in diameter, or open channels with flow widths 200-10000mm (8-400 inches) and depths of 20-10000 mm (3/4-400 inches). lt uses advanced Doppler profiling technology to directly measure velocity profiles making it the best choice for sites with nonuniform, rapidly changing, backwatered, near-zero, negative or reverse flow conditions.

This eliminates the need for onsite calibration, thereby reducing significantly the cost of installation. Used in conjunction with an integral upward-looking ultrasonic or a secondary external pressure sensor (optional) for determining the depth, the meter uses a numerical model for averaged velocity in the entire cross-section and the continuity equation to calculate flow. Information on the level, velocity, flow, temperature, conductivity, and position offset can be taken from the transmitter/flow computer or directly from the sensor. This meter will log up to 16GB of data. In addition, the flow meter can control a sampler in a flow-proportional sampling mode by means of pulse output.