Flow Meter

NivuFlow 650 Flow Meter

Part No. NF6-5

For pipes, open channels and water bodies

Allows high accurate flow measurements using the transit time method according to IEC 60041 for part filled and full pipes, open channels and water bodies. Up to 8 measurement paths.

[Translate to English:] Durchflussmessumformer NivuFlow 650

[Translate to English:] Durchflussmessung Anwendungen NivuFlow 650

[Translate to English:] Durchflussmessung Anwendungen für Messung im Rohr

[Translate to English:] Durchflussmessung offener Kanal NivuFlow 650

Proven robust ultrasonic transit time technology
Adjustable accuracy utilizing up to 32 measurement paths
Quick and easy initial start-up
Application range from partly-filled pipes to channels and rivers up to 100m width
Remote datahandling and maintenance
Easy integration into control systems
Weatherproof version available
Compliant with N ISO 6416 and ISO 748
Full overvoltage protection equipment available
IoT-ready with global 4G connectivity for highest availability and digital services
Energy-saving cycle operation for self-sufficient systems

General description

The NivuFlow 650 is compliant with ISO 6416, IEC 60041 as well as ISO 748 and has been developed for accurate flow measurement in open channels, part filled and full pipes and surface water bodies. To meet the highest possible accuracy requirements it is currently possible to utilise the NivuFlow 650 using up to 4 velocity paths, with extension modules up to 32 velocity paths.
The NivuFlow 650 operates over the full bi-directional flow range without causing obstruction or head loss where the large array of NIVUS transducer models permits flow measurement across the widest possible range of applications.

The compact transmitter design can be easily integrated into instrument cabinets using a DIN rail mounting system and is also available with a field enclosure that provides full protection under harsh environmental operating conditions. The transmitter‘s large graphic display allows quick and easy commissioning of the flow metering system.

The NivuFlow 650 provides extensive diagnostic options and allows in-depth analysis of operational function on site. The system has been developed using future-proof protocols complete with versatile choices for communication and I/O connections that open up a wide range of options for operators to integrate the instruments into SCADA or similar operating systems.

Typical NivuFlow 650 Applications

Measurement of surface waters such as rivers, channels and similar
Irrigation systems (volume distribution and billing)
Drainage systems
Hydropower plants (turbine efficiency and turbine optimisation etc.)
Inlets and outlets conducting cooling water or circulation systems
Penstock monitoring
Industrial process waters
and many more

Common
Power supply	100 - 240 V AC, -15 % / +10 %, 47 to 63 Hz or 10 - 35 V DC
Power supply connection	AC: Plug-in and screw-on spring-loaded terminal block DC/DL: Plug-in spring-loaded terminal block
Maximum power consumption	AC: 30 VA/ DC: 20 W
Typ. power consumption	1x relay energised, up to four paths with time-of-flight difference 1 MHz 230 V AC: 14 VA/ 6,8 W 24 V DC: 6,2 W
Enclosure	DIN rail Material: Aluminium and Plastic Weight: approx. 1300 g Field Enclosure Material: Polyamide (PA) / Polycarbonate PC Weight: approx. 3.900 g (incl. NF650)
Protection class (IEC 60529) / Impact resistance (IEC 62262)	DIN rail IP20 / IK08 Field enclosure IP67 (optional: IP68) / IK08
Operation conditions	Protection Class I Overvoltage Category II Pollution Degree 2
Operation altitude	AC device for use at an altitude of up to 3000 m above sea level. For relay voltages >150 V, use is restricted to altitudes up to max. 2000 m above sea level (AC and DC devices)
Operating temperature	DC: −20°C to +70°C AC: −20°C to +65°C
Storage temperature	−30°C to +80°C
Max. ambient temperature for installation and operation	+50 °C
Max. humidity	80%, non-condensing
Display	Daylight-compatible TFT colour graphic display, 240x320 pixels, 65,536 colours
Parameterisation / Programming	Menu-guided via rotary pushbutton and two function keys, in English, German, French, Italian, Spanish, Portuguese, Swedish, Danish, Finnish, Polish, Hungarian, Romanian, Czech, Russian, Korean and Chinese
Connection	General: Plug-in spring-loaded terminal block AC power supply: Plug-in and screw-on spring-loaded terminal block
Outputs	2x (Type T2) 0/4-20 mA, load 500 Ohm, 12 Bit resolution 1x (Type T2) relay SPDT, load up to 230 V AC/2 A (cos j 0.9), min. switching current 100 mA 1x (Type T2) bistable relay SPDT, load up to 230 V AC/2 A (cos j 0.9), minimum switching current 100 mA
Number of measuring points	up to 2
Data memory	1.0 GB internal memory, readout on faceplate via USB stick
Communication/data transmission	Modbus TCP via network (LAN/WAN, Internet) Modbus RTU via RS485 or RS232 Ethernet TCP/IP
Number of paths	1 up to 4 measurement paths, up to 32 measurement paths with extention modules

Specifications subject to change.

dimensions field enclosure — NivuFlow 650 field enclosure dimensions in mm

NivuFlow 650 DIN rail enclosure dimensions in mm

Brochure NivuFlow 650

download file
PDF 5 MB

Instruction Manual | NivuFlow 650 (Rev. 03)

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PDF 4 MB

Technical Description "Ex-Separator Module pXT0 - Transit Time"

download file
PDF 6 MB

EU Declaration of Conformity | Permanent flow measurement transmitter Nivuflow 6xx

Typ NF6-xT…

download file
PDF 188 KB

EU Declaration of Conformity | Extension Modules NFE-...

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PDF 198 KB

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