Flow Meter

NivuFlow 600 WSNew

Part No. NF6-D

Flow transmitter for drinking water applications

Transmitter for accurate flow measurement using the ultrasonic transit time difference method with non-contact clamp-on sensors. Especially for drinking water applications.


The NivuFlow 600 WS measurement system was specially developed for drinking water applications. Using the transit time difference method, we are setting new standards for the measurement and monitoring of drinking water flows.

Thanks to our clamp-on sensors, the process does not have to be interrupted. Operations can continue smoothly while the measurement is set up within a few minutes. We also guarantee absolute hygiene, as our sensors have no direct contact with drinking water.

With the NivuFlow 600 WS, not only the flow rate, but also the flow velocity and water temperature can be reliably measured, even at very low flow velocities of up to 3 cm/s. Structural modifications to the cross-section to generate higher flow velocities are therefore no longer necessary.

The compact enclosure for DIN rail mounting is suitable for space-saving installation in control cabinets. Special field enclosures are available for use in harsh environmental conditions. A large, easy-to-read daylight display enables the flow meter to be set up quickly and easily. It also offers extended diagnostic options for detailed analysis of running processes directly in the field.


Your Benefits

  • Easy installation without interrupting the supply, no need to cut the pipeline or flush the pipe
  • Absolute hygiene, as it does not come into contact with the medium
  • Easy commissioning thanks to menu-supported sensor alignment
  • Intuitive, modern operating concept for quick and easy commissioning and diagnostics on site
  • IP68 field enclosure available
  • IoT-ready with global 4G connection for maximum availability and digital services
  • IP68 Sensors
  • High measurement accuracies even at lowest flow velocities 
  • Calculation of the water temperature based on the speed of sound
  • For all common pipe materials and pipe linings in the water industry
  • Direct installation in the ground, no shaft construction required
  • Monitoring of all system-relevant parameters (flow rate, flow velocity and temperature)
  • Bidirectional measurement possible

Typical Applications

  • Flow measurement in drinking water tanks, pumping stations, treatment plants, pressure boosting systems
  • Flow measurement in the drinking water network, buried applications 
  • Hygiene monitoring in drinking water networks based on temperature
  • Flow measurement of springs
  • Transfer shafts between water suppliers
  • Control of flow rates (pumping stations, treatment plants)
Technical Data
Number of paths


  • Modbus TCP via network (LAN/WAN, Internet)
  • Modbus RTU via RS485 or RS232
  • Ethernet TCP/IP
Data memory

1.0 GB internal memory, readout on faceplate via USB stick

  • 1x (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 10 mA
  • 1x (Type T2) 4-20 mA, with 12 Bit resolution for storage of data from external units, load 91 Ohm,
  • 1x (Type T2) digital input

plug with spring cage terminal blocks


rotary pushbutton, 2 function keys, menus in English, German, French, and others


240 x 320 Pixel, 65536 colours

Max. humidity

80 %, non-condensing

Storage temperature

−30 C to +80 °C

Operating temperature
  • DC: −20 °C to +70 °C
  • AC: −20 °C to +65 °C

approx. 1150 g

Enclosure material:

Aluminium, Plastic

Power consumption

1 relay energised, 230 V AC: (rounded) 14 W

Measurement range

DN 50 – DN 800

Power supply

100 - 240 V AC, -15 % / +10 %, 47 to 63 Hz or 10 - 35 V DC

Specifications subject to change.


Manual Instruction "NivuFlow 600 / NivuFlow 600 WS" (Rev. 04)

System Products
Related Products

Haven't found the appropriate product?

You haven’t found the right product? Then use our application configurator – it will get you to the right product step by step.

Also for your individual measurement spot we support you gladly. Please fill in our questionnaire.

Product Consultation

You want to have best information about our products? Our experts will gladly develop together with you the best system solution for your application.


You have questions about your NIVUS products in use? Our service hotline will readily support you.

We are glad to have you here! For any question regarding water or digitisation we are happy to answer you call or your email message.
Im Täle 2
75031 Eppingen