The ORAKEL Submerged AV (Area Velocity) Flow meter uses a robust, doppler velocity sensor that uses ultrasonic technology to measure wastewater flow with improved accuracy and reliability.
The Area Velocity Sensor is installed within the open channel. A bespoke ultrasonic sensor measures a frequency shift from particles within the moving liquid in order to provide an accurate velocity value.
An integrated pressure sensor is used to measure the depth. Liquid temperature compensation improves accuracy of the calculated flow. On-board flow calculation caters for multiple pipe and channel types.
Designed to measure raw sewage, industrial effluents and storm waters. Due to its robust construction, the ORAKEL Submerged AV Flow Sensor can be used in open channels, combined sewers and storm sewers pipes.
A rugged design allows for depth and velocity measurements in the most hazardous of circumstance, whilst the velocity profiled sensor reduces the fouling/ragging risk.
| Sensors | Velocity Sensor, Depth Sensor, Integrated Temperature Sensor |
| Channels | Connects up to 2 sensors as standard; expandable up to 16 sensors |
| Velocity range | 0.03m/s to 4.00m/s (resolution 1mm/s) |
| Velocity Sensor Linearity | ±1% |
| Velocity Sensor Accuracy | ±2.5% FS |
| Range | 0.0m to 6.0m |
| Depth Sensor Linearity | 0.1% BSL |
| Depth Sensor Accuracy | ±0.2% FS |
| Outputs | 4-20mA and Modbus outputs available |
| Operating Temperature | -20°C to +60°C |
| Approvals | CE approved |
› Market-leading accuracy
› Resists fouling and corrosion
› Cost effective, requiring little maintenance
› Versatile sensor installation – easy to place in the channel
› The ORAKEL control unit allows up to 15 additional sensors to be included