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MANTARAY PORTABLE AREA-VELOCITY METER PULSAR



Mantaray Portable Area-Velocity Meter

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
  • 4-20 mA 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

Technical Specifications

General Specifications
Spec name: Description:
Channel Types Round pipe, rectangular, trapezoid, egg, or custom shapes
Electronics Enclosure IP 67 polycarbonate
Accuracy Level: ±0.25% of range or 1 mm (0.04 in).
Velocity: ±2% of Reading
Repeatability & Linearity ±0.1%
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 V DC, 10,000 mAh
Battery Charger 6 A (1000 W Max), 100-240 V AC 50/60 Hz input, UL and CE listed
Outputs/Communications 4-20mA, 500 ohms or 0-5 V DC (100mA) by menu selection
2 solid-state Relays, 40 V AC/DC max., rated 250 mA; programmable for flow and/or level alarm or flow proportional pulse (sampler/totalizer, Max frequency 0.4 Hz)
Breakout Box Connections for charger input, external battery input, 2 relays, 4-20mA (0-5 V)
Electrical Surge Protection Sensor, 4-20mA outputs, 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 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
Approximate Shipping Weight 6.8 kg (15 lbs)


 

QZ02L Sensor Specifications
Spec name: Description:
Velocity Measurement Range 0.031 m/s to 6.2 m/s (0.1 ft/s to 20 ft/s) and reverse flow to -1.5 m/s (-5 ft/s)
Level Measurement Range Minimum Head: 25.4 mm (1 in). Maximum Head: 4.57 m (15 ft)
Operating Temperature -15 °C to 80 °C (5 °F to 175 °F)
Exposed Materials 316 stainless steel, epoxy resin, polyurethane
Sensor Cable 7.6 m (25 ft) submersible polyurethane jacket, shielded, 3-coaxial
Sensor Mounting Includes MB-QZ stainless steel mounting bracket
Temperature Compensation Automatic, continuous

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