The MantaRay Portable Area-Velocity Flow Meter measures flow in open channels, partially filled and surcharged pipes using an ultrasonic sensor. It's designed for monitoring stormwater, sewage, industrial effluent, irrigation water and natural streams. The ManataRay displays and datalogs flowrate and total flow and connects to samplers, SCADA and telemetry systems.
Calibration is simple: enter the pipe diameter or channel dimensions and the MantaRay automatically computes and displays the flow rate and total on its backlit LCD display. Mount the sensor at the bottom of the pipe or channel and hang the IP67 electronics case above the high water level.
The MantaRay uses a submerged ultrasonic sensor to continuously measure flow or reverse flow in open channels, partially filled or surcharged pipes. The sensor is a completely sealed ultrasonic unit with no orifices or ports. It is hydrodynamically shaped and designed to shed deposits and stringers for reliable operation in sewage, stormwater and stream flow applications.
The QZ02L sensor mounts inside the pipe or at the bottom of an open channel. No special compounds, tools or hardware are required. A stainless steel mounting bracket is included and a size range of optional pipe bands are available for sensor installation in manholes.
The MantaRay stores up to 2-million data points including level, velocity and water temperature. For reduced power consumption during flow surveys you can activate the MantaRay's "sleep mode" to conserve energy for extended operation.
The MantaRay's built-in, rechargeable batteries power the flow meter. You can also connect external 12 or 24VDC batteries to extend the MantaRay's operating time indefinately. Or connect the battery charger (supplied) for continuous operation with 4-20mA and relay operation.