Portable Open Channel Flow Meter: MantaRay | MICRONICS

The MantaRay portable open channel flow meter can operate on partially filled pipes or open channels thanks to its hydrodynamic ultrasonic sensor.
This ultrasonic sensor will be submerged to measure both the velocity and the level of the channel, and it is resistant to fouling, corrosion, and abrasion.
The MantaRay is equipped with a large LCD screen for real-time viewing of instantaneous flow.
It can be connected to samplers, SCADA, or telemetry systems via its 4-20 mA or relay outputs.
Flow data log files are transferable to a USB drive.

Advantages:

• Flow measurement for all types of pipelines
• Ideal for channels and weirs that are difficult to install
• Sealed hydrodynamic sensor resistant to fouling
• Reverse and surcharge flow measurement
• Works with water levels from 25.4 mm to 4.5 m

General technical characteristics:

• Channel types: Round, rectangular, trapezoidal, ovoid, or custom shapes
• Electronic housing: Polycarbonate, waterproof, airtight, and dustproof (IP 67)
• Operating temperature: -20°C to 60°C
• Accuracy:
  • Level: ±1 mm
  • Velocity: ±2% of the displayed value
• Repeatability and linearity: ± 0.1%
• Display: White backlit matrix
• Battery: Rechargeable NiMH 100-240 VAC 50/60 Hz CE certified
• Charger: 4.2 A (70 W max), input 100-240 V AC 50/60 Hz, CE certified
• Outputs/Communications: 4-20 mA, 500 ohms or 0-5VDC (100 mA) selectable via menu
• 2 static relays, 40 V AC/DC max, rated at 250 mA; programmable for flow and/or level alarm or flow proportional pulse (sampler/totalizer, max frequency 0.4 Hz)
• Junction box: Connections for charger input, external battery input, 2 relays, 4-20 mA (0-5 V)
• Surge protection: Sensor, 4-20 mA outputs, and AC power input
• Data logger: Programmable data capacity of 2 million points, timestamped and formatted flow reports including total, average, minimum, maximum, and occurrence times. Includes USB output.
• Logger intervals: Programmable 10, 30 sec, 1, 2, 5, 10, 15, 30, 60 min
• Software: Greyline Logger for Windows. Data graph and table presentation, level/velocity to flow conversion, exports data to Excel™, exports graphs
• Weight: 6.8 kg

Sensor characteristics:

• Velocity measurement range: 0.03 to 6.2 m/sec and -1.5 m/sec in reverse flow
• Level measurement range: 25.4 mm – 4.57 m
• Operating temperature: -15°C to 65°C
• Exposed materials: PVC, epoxy resin, polyurethane
• Sensor cable: 7.6 m, submersible polyurethane sheath, shielded, 3-coaxial
• Sensor mounting: Includes MB-QZ stainless steel mounting bracket
• Temperature compensation: Automatic or continuous

Typical applications:

• Sewer flow monitoring and reporting
• Industrial effluents
• Stormwater monitoring
• Natural stream monitoring
• Irrigation water