Continuous level measurement with NR 3 & NR 8 radar sensors

Continuous Level Measurement with 80 GHz FMCW Radar for the Most Demanding Applications

Non-contact radar sensors continuously and reliably detect fill levels. The basis is the FMCW radar measurement principle (Frequency Modulated Continuous Wave), in which a signal is varied over a defined frequency range. The difference between the transmitted and echo signals provides the travel time, which is then used to calculate the distance and thus the exact fill level.

This technology is equally effective for monitoring bulk solids and liquids, even in tough conditions such as dust, steam, condensation, buildup, or fluctuating temperatures. With very high sensitivity, it is also perfect for challenging materials. Internal installations, such as agitators, are automatically compensated, ensuring accurate and stable measurement results at all times.

Versatile Designs for Accurate Results
in Challenging Media

NivoRadar® NR 3000 | Solids

The NR 3000 series provides versatile configuration options and durable designs for solids in silos, hoppers, and process vessels. The radar technology penetrates dust and buildup, delivering reliable results even in challenging conditions.

Key Benefits of the NR 3000 Series

  • Narrow 3° beam angle – ideal for slim or tall vessels
  • Measuring range up to 120 m / 394 ft with high accuracy
  • Antenna options include: plastic horn, threaded antenna, lens antenna
  • Allround-Pro version with stainless steel adjustable flange (316L), automatic lens cleaning, and optional 10° angle adjustment
  • Temperature range: –55 °C up to +250 °C / –67 °F up to +482 °F (with standpipe up to +1200 °C / +2192 °F)
  • Easy commissioning via display, UWT LevelApp, or PACTware
  • Digital communication using HART and Modbus for remote access

NivoRadar® - NR 3100 | Plastic horn antenna

Plastic horn antenna, cost-effective version with optional adapter flange

NivoRadar® - NR 3200 | Threaded antenna

Threaded antenna, standard version with 1 ½" process connection

NivoRadar® - NR 3300 | Lens antenna

Lens antenna, Allround-Pro version with stainless steel adjustable flange (316L) and automatic cleaning

 

 

NivoRadar® - NR 3300 | Lens antenna with high-temperature standpipe
Lens antenna with high-temperature standpipe for processes up to +1200 °C / +2192 °F (on the right)


NivoRadar® NR 8000 | Liquids

The NR 8000 series is designed to handle a wide variety of liquids – from water, beverages, oils, chemicals and media critical to hygiene. It can also operate under extreme process conditions with pressures up to 160 bar / 2,320 psi and temperatures up to +450 °C / +842 °F. 

Key Benefits of the NR 8000 Series

  • Narrow 3° beam angle for precise results in narrow tanks and pipes
  • Measuring range up to 120 m / 394 ft with high accuracy
  • Antenna options: plastic horn, threaded antenna, hygiene antenna, PTFE-encapsulated antenna for chemical resistance
  • Encapsulated electronics for enhanced operational safety
  • Wide temperature range: –196 °C up to +450 °C / –321 °F up to +842 °F
  • Pressure-resistant up to 160 bar / 2,320 psi
  • Easy commissioning via display, UWT LevelApp, or PACTware 
  • Compatible with CIP/SIP for hygienic processes
  • Simple setup up via display, UWT LevelApp, or PACTware

NivoRadar® - NR 8100 | Plastic horn antenna

Plastic horn antenna, cost-effective basic model with optional pressure flange

NivoRadar® - NR 8200 | Threaded antenna

Threaded antenna, standard version with ¾" process connection

NivoRadar® - NR 8300 | PTFE Antenna System

PTFE antenna, Allround-Pro version – chemical resistant with flange

NivoRadar® - NR 8400 | Hygienic antenna

Hygiene antenna with optional stainless steel housing and hygienic process connections

NivoRadar® - NR 8500 | Horn antenna high-temperature

Horn antenna, high-temperature pressure-resistant version for extreme conditions (–196 … +450 °C / –321 … +842 °F)


With the new NivoRadar® NR 3000 and NR 8000 series, UWT provides radar technology in a versatile product portfolio – from affordable basic models to Allround-Pro versions designed for extreme process conditions. Customers benefit from precise measurement, a variety of designs, and straightforward integration – even when working with challenging media and harsh process environments.

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