UB-Flow AV : the average flow velocity monitoring sensor
The UB-Flow AV is a Doppler sensor which aims to monitor average velocity in sewer networks.
- compact and hydrodynamic
- low power consumption
- quality indicators
- high accuracy
- fast measurement
The UB-Flow AV is a Doppler sensor which aims to monitor average velocity in sewer networks (between -1 and 4m/s). This sensor measures precisely very low velocities and starting from 30mm water depth, including in low particle laden water. In addition to the average velocity, other information are given to guide the user in the flow rate estimation, such as standard deviation, minimal and maximal measured velocities, and to estimate the measurement quality, such as Doppler quality and echo quality indicators.
The fast booting time and fast measurement acquisition time allows to reach an autonomy on battery of more than a year.
An accelerometer gives pitch and roll angles to check the right orientation of the device (+/-1°). A temperature sensor gives a value in °C (+/- 1°C) of the environment temperature around the sensor.
|Measurement principle||Acoustic, pulsed Doppler|
|Velocity range||between -1 and 4m/s|
|Velocity measurement resolution||± 0.001 m/s|
|Operating temperature||5°C to 60°C|
|Single measurement duration||1.2s|
|Number of transducers||1|
|Dimensions||161 x 28.4 x 26.6 mm|
|Weight||sensor head about 160g (670g with 10m cable)|
|Cable||10m long (6.5mm section)|
|Fixation||Screws through 3 inserts beneath|
|Communication||Modbus RTU protocol, RS-485|
|Communication speed||57600 Baud (custom on request)|
|Internal data logger||NA|
|Velocity||Average velocity, Standard deviation, Maximal velocity, Minimal velocity, Doppler quality indicator, Echo quality indicator, Number of good values, Velocity distribution, Serial number, Firmware version|
|Input||8V to 28V, Inverted voltage protection|
|Power/Activity/Connexion LED indicator|
|Power up||0.9 s|
|Norms and security|
|Emissions||Class B (EN 61326-1 and EN 55011)|