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Greyline Instruments Portable Area-Velocity Flow Meter - Manta Ray Get Quote
 
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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 MantaRay displays and datalogs flow rate 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.

Hydrodynamic Ultrasonic Sensor

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.

Key Features

  • External battery input
  • Sleep mode for extended battery life
  • Built-in 2-million data logger
  • Works with water level from 1 inch to 15 feet
  • Measures reverse adn surcharged flow
  • Sealed, hydrodynamic sensor resists fouling
  • Ideal where flumes or weirs are difficult to install
  • Measure flow in pipes or channels of any shape
  • Easy to use

Applications

  • External battery input
  • Sleep mode for extended battery life
  • Works with water level from 1 inch to 15 feet
  • Measures reverse adn surcharged flow
  • Sealed, hydrodynamic sensor resists fouling
  • Ideal where flumes or weirs are difficult to install
  • Measure flow in pipes or channels of any shape
  • Easy to use
  • Built-in 2-million data logger

Technical Specifications

Channel Type: Round pipe, Rectangular, trapezoid egg, or custom shapes
Electronics Enclosure: Watertight, airtight, dust proof ( 67) polycarbonate
Operating Temperature (Electronics): -5° to 140°F (-20° to 60°C)
Accuracy: Level: ±0.25% of Range . Velocity: ±2% of Reading or 1 mm (0.04”)\nRepeatability and Linearity: ±0.1%
Display: White, backlit matrix - displays flow rate, totalizer, relay states, operating mode and calibration menu
Programming: Built-in 5-key calibrator with English, French or Spanish language selection
Battery: Internal rechargeable NiMH, 12VDC, 10,000 mAh
Battery Charger: 6A (100W Max), 100-240VAC 50/60Hz input, UL and CE listed
Outputs/Communications: 4-20mA, 00 ohm5 or 0-5VDC (100 mA) by menu selection\n2 solid-state 40V AC/DC max., 250mA Relays, rated ; programmable for flow and/or level
Breakout Box: Connections for charger input, external battery input, 2 relays, 4-20mA (0-5V)
Sensor, 4-20mA and AC power input Sensor, 4-20mA and AC power input
Data Logger: Programmable 2-million point data capacity, time and date stamped plus formatted flow reports including Total, Average, Minimum, Maximum and
Logger Intervals: Programmable 10, 30 sec, 1, 2, 5, 10, 15, 30, 60 min
Software: Greyline Logger for Windows. Graph and data table presentation, level/velocity to flow conversion, exports data to Excel , exports graphs
Approximate Shipping Weight: 15 lbs.