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MantaRay

Portable Area Velocity Flow Meter

The MantaRay is a portable area velocity meter that measures flow using a submersible 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.

Easy to Use

The MantaRay Portable Area-Velocity Flow Meter measures both level and velocity to calculate flow in an open channel or pipe. 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.

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, making it resistant to build-up and fouling.

 

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 (100 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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