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Water

Surface Water

Flow Measuring Devices

VADCP

The Vertical Acoustic Doppler Current Profiler (Vertical ADCP) is designed for the high-accuracy measurement of water flow, level and velocity profile in open channels, rivers, streams, and irrigation channels. The Vertical ADCP can be deployed as a self-contained instrument recording data for later use; as a real-time instrument for real-time measurements; or as a portable flow meter, with the option to move from station to station. Key Features: Teledyne RDI’s Broadband technology , which allows for small cells and/or short averaging/sampling intervals and highly accurate velocity data. Range of 3–150 user-selectable velocity measurement cells, with cell sizes from 3cm–20cm and profiling range from 0.2m–5m. Small transducer mounted to bottom of open channel allows for less flow disturbance. Accurate acoustic water level sensor. No calibration required, providing a cost-effective solution.

Water Velocity Profiling Profiling range 0.2m1 to 5m2 (Broadband mode) Velocity range ±5m/s default, ±20m/s maximum Accuracy ±0.5%, ±2mm/s Resolution 1mm/s Number of cells 3–150 Cell size 3cm to 10cm Blanking distance 3cm Data output rate User-programmable, 1Hz maximum Flow measurement accuracy 2-5%3 Transducer and Hardware Frequency 2.4mHz Configuration Three beams (velocity measurement) Beam angle 20°, ±25° Beam width 0.95° Internal memory 4MB Communications Interface: RS-232 Baud rate: 1200 to 115,200bps Standard Sensors Sensor Temperature Acoustic Stage Range -5°C to 45°C 0.1-10m (default) Accuracy ±0.5°C ±0.1%, ±3mm Resolution 0.01°C 0.1mm Software WindowsTM-based: • PlanCV: Deployment planning • Q-Monitor-V: System set-up, data acquisition, playback, and flow calculation Power Input 10–28VDC Internal battery 3@6VDC alkaline lantern batteries, 570wh Consumption 0.11w @ 10% duty cycle Environmental Operating temperature -5°C to 40°C Storage temperature -25°C to 60°C Vibration meets IEC 60721-3-2 standard Housing weight 5.2kg (with internal battery) Dimensions Housing Length 340mm; width 180mm; depth 140mm Transducer Length 202mm; width 92mm; depth 39mm 1Q94;Assume one good cell (minimum cell size); range measured from the transducer surface. 2Q94;Assume fresh water; actual range depends on temperature and suspended solids concentration. 3Q94;Assume narrow channels.

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