Portable, open channel flow monitor Measures Flow in Open Channels with a Hydrodynamic, Ultrasonic Sensor Portable Open Channel Flow Meter Designed for flow surveys in open channels, partially full sewer pipes, and surcharged pipes. MantaRay is ideal for stormwater, sewage, irrigation water, and natural streams. Hydrodynamic Ultrasonic Sensor The MantaRay uses a submerged ultrasonic sensor to continuously measure both velocity and level in the channel. The sensor resists fouling, corrosion, and abrasion. View real-time flow rate and total flow on the large backlit LCD display. Connect to samplers or SCADA and telemetry systems with the 4-20mA and relay outputs. Download flow log files to a USB memory stick. Portable, Flow Monitor for Partially Filled Pipes & Open Channels Easy to Use The MantaRay Portable Area-Velocity Flow Meter The Greyline MantaRay Portable Area-Velocity Flow Meter measures both level and velocity to calculate flow in an open channel or pipe. Calibration is simple: enter I N F O @ P U L S A R M E A S U R E M E N T . C O M THE RIGHT METER FOR • Sewer Flow • Natural Streams • Irrigation Water Monitoring & Reporting Effluent the pipe diameter or channel dimensions and the MantaRay automatically computes and displays the flow rate and total on its backlit LCD display. The ultrasonic sensor mounts inside the pipe or on the bottom of a channel with a stainless steel mounting bracket (included) and a single screw into the bottom of the pipe or channel. No special compounds, tools, or hardware are required. The sensor is completely sealed with no orifices or ports. PUL SAR ME A SUR EM

Recommended Pipe or Channel Conditions Careful selection of sensor mounting location results in the best performance and maintenance-free operation; avoid locations where sediment is likely to build up. The best possible accuracy will result when the water is not highly turbulent and where velocity is evenly distributed across the channel. The channel should not have drops or direction changes immediately upstream of the sensor mounting location and the pipe or channel slope should not exceed 3%. The MantaRay can measure forward flow velocity up to 6.1 m/s (20 ft/s) and reverse flow up to 1.5...

Technical Specifications GENERAL SPECIFICATIONS Channel Types: Round pipe, rectangular, trapezoid, egg, or custom shapes Electronics Enclosure: Operating Temp.(Electronics): • Level: ±0.25% of Range or 1 mm (0.04 in). Velocity: ±2% of reading • Repeatability and Linearity: ±0.1% White, backlit matrix — displays flow rate, totalizer, relay states, operating mode, and calibration menu Built-in 5-key calibrator with English, French, or Spanish language selection Internal rechargeable NiMH, 12 V DC, 10,000 mAh Battery Charger: 4-20mA, 500 Ω or 0-5 V DC (100mA) by menu selection 2 solid-state Relays,...

MantaRay Portable Area-Velocity Flow Meter • Measure flow in pipes or channels of any shape • Ideal where flumes or weirs are difficult to install • Sealed, hydrodynamic sensor resists fouling • Measures reverse and surcharged flow • Works with water level from 25.4 mm to 4.5 m (1 in to 15 ft) The Greyline MantaRay Portable Area-Velocity Flow Meter includes a submerged ultrasonic sensor that is installed at the bottom of an open pipe or channel. It has no moving parts and no orifices, ports, or electrodes. The sensor, cable, and IP67 electronics housing are designed to resist fouling and corrosion....