AVFM 5.0 Area-Velocity Flow Monitor
- Sensor Protection
IP68 for continuous submersion in liquids.
- Flow Calculation
Single sensor measures velocity and level to calculate the flow.
For partially filled and surcharged pipes
Built in 2 million point datalogger
AVFM 5.0 area-velocity flow monitor flow through open channels, partially full sewer pipes and surcharged pipes without a flume or weir. Ideal for storm water, combined effluent, raw sewage, irrigation water and streams. Calibration is simple: enter the pipe diameter or channel shape and the AVFM 5.0 computes the flow volume and displays the flow rate. Measure forward and reverse flow and calibrate to channels of any shape.
The AVFM 5.0 uses a submerged ultrasonic sensor to measure both velocity and level in the channel. The sensor is completely sealed with no orifices or ports. It mounts inside a pipe or at the bottom of a channel.
The AVFM 5.0 is recommended for pipe diameters greater than 6" (150 mm). Maximum pipe diameter or channel width should not exceed 10 ft. (3 m) unless flow velocity is evenly distributed across the channel width. Avoid sensor mounting locations where sediment builds up and locations where there is an elevation drop or bend immediately upstream from the sensor. Maximum pipe or channel slope should not exceed 3%.
The AVFM 5.0 measures flow velocity from 0.1 to 20 ft./sec (0.03 to 6.2 m/sec) and reverse flow up to 5 ft./sec (1.5 m/sec).
Wall-mount, watertight NEMA4X (IP66) enclosure with hinged, clear cover
|Transmitter operating temperature:||-20°C to +60°C|
|Outputs||3 isolated 4-20mA, 1000 ohm (Flow, Level and Velocity) or 0-5 vdc by menu selection|
|Data Logging||Programmable, 2 million points|
|Accuracy||Level: ±0.25% of Range. Velocity: ±2% of Reading.|
|Repeatability and Linearity||±0.1%|
|Pipe diameters range:||
12.5 up to 4500mm
|Measuring range||0.03 to 6.2 m/s|
|Operating temperature:||-15°C to +65°C|
|Exposed material||PVC, epoxy resin, polyurethane|
|Sensor cable||25 ft. (7.6 m) submersible polyurethane jacket, shielded, 3-coaxial|
|Max. cable length||Up to 152 meter|
Sewer Flow Monitoring and Reporting
Storm water Monitoring