The NivuFlow 550 is a non-contact radar flowmeter for open channels or partially filled pipes.
Based on the OFR radar speed sensor, the NivuFlow 550 can be used for all types of fluids, including corrosive or high-temperature fluids.
The absence of contact with the medium simplifies installation and considerably reduces maintenance requirements as compared to submerged area-velocity meters.
The NivuFlow 550 is also available in a battery-operated version with integrated telemetry (see NivuFlow Mobile 550).
Applications
- Sewer systems, treatment plant inlets and outlets
- Diagnosis, infiltration or capacity studies
- Overflow events monitoring
- Watercourses, flood monitoring
- Irrigation canals
- Industrial process water, cooling water
- Measuring points with high pollution loads and sedimentation
- Load-bearing measuring points
- Channel installation not possible
- Torrential or low-level flows
Main benefits
- Advantages due to the absence of contact with the environment (installation, maintenance, types of fluids, etc.); see OFR radar sensor for details.
- Measurement possible at low levels and high velocities
- Accurate measurement of actual flow using hydraulic algorithms for various channel shapes and levels
- Diagnostic, analysis, and simulation functions integrated into the transmitter-converter (no need for additional software)
- Flexibility in the choice of level sensor and the various inputs/outputs available on the transmitter-converter
- Energy-saving cyclic operation for stand-alone systems
- Approval for potentially explosive areas Class I/Division 1 (optional)
- Can be connected to an existing SCADA system or Cloud platform, or to Topkapi software, or to the Nivus Web portal.
Specifications
VELOCITY AND LEVEL
- Bi-directional velocity measurement using Doppler Radar technology (24 GHz); see details in OFR radar sensor
- Level measurement using ultrasonic, radar or hydrostatic sensors; see Sensors section.
- Measurement accuracy
— Velocity (OFR): ± 0.5% (± 0.01 m/s, surface speed)
— Level: depending on sensor
— Flow: ± 5% typical; ± 2% under reference conditions
POWER SUPPLY
- Supply voltage:
— 100 to 240 V AC, 47 to 63 Hz
— 9 to 36 V DC - Power consumption: 14 VA typical
- Can be powered by solar panel for isolated sites (or stand-alone battery-powered solution; see NivuFlow Mobile 550)
ENCLOSURE - ENVIRONMENT
- Material: aluminum, PVC (converter)
- PVC field housing available (option)
- Degree of protection: IP 20 (IP 68 with optional field housing)
- Operating temperature: -20°C to +70°C
- Max. humidity: 80%, non-condensing
OPERATION
- Configuration, visualization, diagnostics directly on the converter
- TFT color graphic display: 240 x 320 pixels, 65536 colors
- Trend graphs, channel profiles, etc.
- Intuitive wheel and function key navigation
- 1.0 GB internal memory, download via USB key
INPUTS-OUTPUTS
- Inputs:
— OFR velocity sensor
— 4-20mA level sensor
— Digital level sensor Nivus
— Additional 0/4-20mA sensor (12-bit resolution)
— Digital inputs (2) - Outputs:
— 0/4-20mA outputs (2, 12-bit resolution)
— Relay outputs (2) - Additional inputs and outputs available (optional)
COMMUNICATION
- Modbus TCP, Modbus Serial RTU, HART®, TCP/IP
- Integrated cellular telemetry (optional)
Related products
- OFR radar velocity sensor
- Ultrasonic level sensors Series i
- Various installation accessories (contact us)
- NivuFlow Mobile 550
- NivuFlow 7550
- Velocimeters and profilers (see NivuFlow Stick, Fluvia, FloStick)
- PLCs, dataloggers, telemetry systems (see REDY, FLEXY, Multilog...)
- SCADA software (see Topkapi)
- Nivus Web portal
- Autonomous power supply systems for isolated sites (contact us)