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MantaRay Portable Area-Velocity Flow Meter

Brand: Greyline

The Greyline MantaRay is a portable area-velocity meter and measures flow in open channels, partially filled, and surcharged pipes using a submerged ultrasonic sensor. 

The unit is designed for flow surveys in open channels, partially full sewer pipes, and surcharged pipes - making the portable open channel flow meter suitable for sewer monitoring, industrial flow monitoring, irrigation flow, and natural streams.

The Greyline MantaRay displays and logs flow rate and total flow, as well as being able to connect to samplers, SCADA, and telemetry systems, making site integration simple and easy. 

The submerged ultrasonic sensor continuously measures flow or reverse flow in partially filled or surcharged pipes and is a completely sealed unit with no orifices or ports. 

The ultrasonic sensor is hydrodynamically shaped and designed to shed deposits and stringers for reliable operation in sewage, stormwater, and stream flow applications.
Features
  • Measures flow in partially filled pipes and open channels
  • No flume or weir required
  • 4-20mA and Relay outputs for connection to Samplers and SCADA
  • Powered with built-in rechargeable NiMH batteries
  • 2 million point data logger with USB output to Flash drives
  • Backlit LCD display for flow rate, totalizer and menu system

Specifications

Brand

Channel Types

  • Round Pipe
  • Or Custom Shapes
  • Egg
  • Trapezoid
  • Rectangular

Electronics Enclosure

  • IP67 Polycarbonate

Accuracy

  • Repeatability & Linearity ± 0.1 %
  • Velocity: ± 2 % of Reading
  • Level: ± 0.25 % of Range or 1 mm (0.04 in)

Display

  • White, Back-Lit 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, 12 Vdc, 10,000 mAh

Battery Charger

  • 6 A (1000 W Max.), 100-240 Vac 50/60 Hz Input, UL and CE Listed

Outputs / Communications

  • 2 Solid-State Relays, 40 Vac/dc Max., Rated 250 mA, Programmable for Flow and/or Level Alarm or Flow Proportional Pulse (Sampler/Totalizer, Max. Frequency 0.4 Hz)
  • 4-20 mA, 500 ohms or 0-5 Vdc (100 mA) by Menu Selection

Breakout Box

  • Connections for Charger Input, External Battery Input, 2 Relays, 4-20 mA (0-5 V)

Electrical Surge Protection

  • Sensor, 4-20 mA Outputs, and AC Power Input

Data Logger

  • Programmable 2 Million Point Data Capacity, Time and Date Stamped Plus Formatted Flow Reports Including Total, Average, Min., Max., and Times of Occurrence. Includes USB Output to Flash Drives

Logger Intervals

  • Programmable 10 sec, 30 sec, 1 min, 2 min, 5 min, 10 min, 15 min, 30 min, 60 min

Software

  • Greyline Logger for Windows®. Graph and Data Table Presentation, Level/Velocity to Flow Conversion, Exports Data to Excel, Exports Graphs

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