Thanks to ultrasonic cross-correlation technology with flow profile detection, the NivuFlow Mobile 750 offers an extremely accurate flow measurement system for slightly to heavily polluted media, in partially filled or full channels and pipes, even under difficult hydraulic conditions.
Totally autonomous thanks to its internal battery, it can also be operated remotely thanks to an integrated cellular telemetry module (optional).
Based on the same measurement technology and algorithms, it complements the standard NivuFlow 750 offering by providing the flexibility required for sites without a power supply, for permanent installations or temporary measurement campaigns (portable system).
On-site implementation is simple, fast and very user-friendly, thanks to WiFi communication and a web server, from a simple cell phone, tablet or PC.
Applications
- Slightly to heavily charged fluids in open channels or full or partially filled pipes
- Sewerage systems, pumping stations
- Wastewater treatment plants: inlet, outlet, aeration tank outlet, sludge recirculation, sludge treatment, fermentation outlet, flocculant dosing
- Diagnosis, infiltration or capacity studies
- Control of discharges, parasitic waters, search for leakage flows
- Sewage Overflow momitoring
- Stationary measures in rainfall retention structures such as stormwater, retention or pollution control basins
- Industrial water networks
- Metering for billing purposes
- Drainage pipes
- Recycling sludge lines
Main benefits
- High-accuracy measurement thanks to cross-correlation velocity profiling technology, with no need for calibration, even under changing and difficult hydraulic conditions
- 3D visualization of flow profiles in real time
- Flexible range of velocity sensors (see Velocity Profiling Sensors) and level sensors (integrated with velocity sensors or external, hydrostatic, ultrasonic, radar)
- Multi-sensor capability for large-diameter pipes or wide channels, or for system redundancy (up to 3 velocity sensors)
- Sensors can be installed without stopping the flow, without intervention in the environment, and without additional mounting equipment such as string rings or mounting plates (cylindrical insertion sensors).
- Wireless local operation (WiFi) via web browser on laptop, tablet or phone, for configuration, commissioning and data retrieval (no additional software required)
- Diagnosis, analysis and simulation functions integrated in the converter-transmitter
- Can be operated remotely via cellular telemetry
- Energy-saving cyclic operation to optimize battery life
- 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 SENSORS
- Bidirectional speed measurement using ultrasonic cross-correlation technology; see details in Velocity Profiling Sensors)
- Level measurement by sensor integrated in the speed sensor or external (ultrasonic, radar or hydrostatic); see Sensors section (consult us for third-party sensor validation).
- Measurement accuracy
— Velocity:< 0.5 % +5mm/s (v<1m/s), < 1 % (v>1m/s)
— Level: depending on sensor
— Flow rate: depending on operating conditions (consult us for case studies)
POWER SUPPLY
- 1 or 2 rechargeable 12V/15 Ah lead-acid batteries (charger supplied)
- Autonomy: 40 days to over a year (depending on number of batteries, measurement cycle, transmission cycle)
- Alternative power supply via junction box (optional)
ENCLOSURE - ENVIRONMENT
- Material: High-strength HPX resin (converter)
- Degree of Protection: submersible IP 67 (open housing) / IP68 (closed housing)
- Operating Temperature: -20°C to +50°C, i.e. -4°F to 122°F (-15°C to +50°C, i.e. 5°F to 122°F, for Ex version)
- Storage Temperature: -20°C to +70°C (-4°F to 158°F)
- Max. humidity: 90%
OPERATION
- Configuration, Visualization, Diagnostics via wireless connection (WiFi), from laptop, tablet or phone (Web browser)
- Integrated datalogger (frequency 5 seconds to 60 min, cyclic or event-driven)
- Internal memory: autonomy depending on measurement cycle (e.g. 1.5 years of measurements every 5 mns)
- Measurement retrieval via USB key or WiFi wireless link
- Status LEDs (RGB)
INPUTS-OUTPUTS
- Inputs :
— Cross-correlation velocity sensors (CSM, CSP ranges)
— Nivus series I digital ultrasonic level sensor
— 0/4 - 20 mA active/passive inputs (2)
— Passive 0/4 - 20 mA input (1)
— Active digital input (1)
— Additional inputs and outputs available, via connection box (option) - Outputs:
— Digital output (1)
— Analog output 0-10V (1)
COMMUNICATION
- WiFi wireless link for local operation
- Optional integrated cellular telemetry for transmission of measurements and alerts (can be disabled)
Related products
- Cross-correlation velocity sensors
- Ultrasonic level sensors Series i
- Various installation accessories (consult us)
- NivuFlow 750
- NivuFlow 7550 (hybrid radar+cross-correlation velocity measurement system)
- Velocimeters and profilers (see NivuFlow Stick, Fluvia, FloStick)
- SCADA software (see Topkapi)
- Nivus Web portal
- Autonomous power supply systems for isolated sites (consult us)
