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TDF Acoustic Doppler Point Flowmeter

Application <br /> Flow calculation of channels or rivers, suitable for various water quality ● Rivers and lakes ● Municipal sewage ● Industrial wastewater ● Irrigation water

principle

The TDF Acoustic Doppler Point Flowmeter uses the ultrasonic Doppler principle to measure the average flow velocity of a river canal. At the same time, the static pressure method is used to measure the water depth. The canal flow is automatically calculated based on the cross-section of the canal.

Features ● Ultrasonic Doppler measurement technology, accurate measurement of characteristic flow velocity;
● Integrated pressure sensor can directly measure water depth;
● Digital sensor with strong anti-interference ability, the sensor cable length can reach hundreds of meters;
● The meter can provide one isolated RS232 digital interface and one isolated RS485 digital interface, supporting standard Modbus ASCII and Modbus RTU protocols;
● Support Chinese and English languages;
● Programmable relay output: Any relay can be set to high alarm, low alarm, and timer modes;
● With the function of automatic saving of historical data, it can store and query historical data information for 10 years.

Velocity <br /> range: 0.02 ~ 5m / s
Accuracy: 2% of reading ± 1cm / s
Resolution: 0.001m / s

Water level <br /> Range: 0 ~ 5m, 0 ~ 10m
Accuracy: ± 0.5% FS
Resolution: 0.001m

Temperature <br /> Sensor: 0 ℃ ~ 60 ℃
Transmitter: -10 ℃ ~ 55 ℃;

Reliability <br /> Reliability: MTBF≥25000h

Working environment <br /> Water depth: the shallowest is not less than 0.05m
Relative humidity: ≤ 95%

Distance between measuring point and transducer: 5cm ~ 20cm

Output <br /> Digital interface: RS485 / MODBUS protocol

Power supply <br /> AC power supply: 85 ~ 265VAC, 50Hz / 60Hz
DC power supply: DC 12V, allowable fluctuation ± 15%