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UWT Delivers Hygienic Level Measurement for Ice Cream Production

Trays of ice cream in a dairy production facility, where UWT provides hygienic level measurement for raw milk
19 Oct 2026  |
Level Control and Measurement
Hygiene, process reliability and precise level control are essential in ice cream production, particularly when handling raw milk. In a dairy processing facility, UWT combines 80 GHz radar technology with vibrating fork sensors to ensure accurate level measurement, prevent overfilling and support controlled tank emptying. The hygienic sensor designs are suitable for regular CIP/SIP cleaning, while reliable measurement performance is maintained even in tanks equipped with agitators.
Medium: Raw milkDairy processing facilityMeasuring range: up to 5 mProcess temperature: < 80 °C80 GHz radarAccuracy ± 1 mm
In short

Reliable raw milk monitoring with precise continuous level measurement, dependable overfill protection and hygienic sensor design.

Process Challenges

  • Strict Hygiene StandardsStrict hygiene standards for handling raw milk
  • CIP/SIP ProcessesRegular cleaning using chemically demanding CIP/SIP processes
  • Agitators in the TankAgitators in the tank that may influence measurement
  • Limited SpaceLimited space in the outlet pipe

UWT Solution Concept with Radar and Vibration Technology

NR 8400 and VN 7120 for precise level measurement and reliable point level detection in the tank and outlet pipe. Image: UWT

As the solution for this application, a NivoRadar® 8400 monitors the continuous level inside the tank. Additionally, a Vibranivo® VN 7120 with extension detects the maximum fill level, while another VN 7120 in compact design secures the outlet pipe to ensure controlled emptying.

The NivoRadar® 8400 is designed to meet the stringent standards of the food industry and complies with all relevant regulations such as EC 1935/2004 and FDA. Thanks to its hygienic design, it is also widely used in pharmaceutical applications. With a measuring accuracy of ± 1 mm, it provides precise and stable results, even with agitated surfaces caused by mixers.

Based on 80 GHz free-radiating radar technology, the sensor is perfectly suited for liquids such as milk. Agitator compensation can be easily configured via the UWT LevelApp, or alternatively through PACTware or the integrated display. The hygienic design with wetted parts made of stainless steel 1.4404 (316L), PEEK, and PTFE prevents buildup and allows efficient cleaning. The radar sensor operates reliably at process temperatures up to 150 °C, pressures up to +16 bar, and is protected up to IP68/Type 6P, making it ideal for CIP/SIP cleaning as well as high-pressure washdowns. A wide range of hygienic process connections such as Triclamp, Varinline, or DRD are available, and the device can be supplied with either aluminum or stainless steel housing.

Reliable Point Level Detection

NR 8400: Hygienic design, CIP/SIP-compatible, easy to clean, and absolutely reliable. Image: UWT

Two Vibranivo® VN 7120 sensors are used for point level detection. In their hygienic stainless steel design with high surface finish, they are ideally suited for dairy processes.

  • Short Version with 64 mm ExtensionIn the short version with 64 mm extension, the vibrating fork detects the maximum level in the tank and reliably prevents overfilling.
  • Compact Version in the Outlet PipeIn the compact version, the VN 7120 is installed in the outlet pipe, ensuring controlled emptying as well as protection of valves and pumps.
VN 7: ultra-compact, robust, and easy to clean. Image: UWT

Especially in hygienic environments, the VN 7120 proves its strength with a robust, cleaning-friendly design:

  • Stainless Steel 1.4404Housing and wetted parts made of stainless steel 1.4404
  • High Surface FinishHigh surface finish of Ra 3.2 µm (<0.8 µm) prevents buildup and ensures efficient cleaning
  • Hygienic AdaptersHygienic adapters such as Triclamp or flush-welded nozzles allow flexible integration into tanks and pipelines
  • Protection Classes up to IP69Protection classes up to IP69 guarantee resistance to moisture and high-pressure cleaning
  • Reliable DetectionReliable detection – unaffected by turbulence, foam, air bubbles, or buildup

Benefits for the Operator

  • Precise MeasurementContinuous and reliable level and point level detection
  • Process ReliabilityPrevents overfilling, works consistently with agitators and turbulence, ensures controlled emptying, and protects valves and pumps
  • Hygienic DesignStainless steel, PEEK, PTFE – compliant with EC 1935/2004 and FDA
  • Cleaning-FriendlyCompatible with CIP- and SIP for efficient processes
  • Easy CommissioningSimple configuration via LevelApp, display, or PACTware
  • FlexibleMultiple hygienic process connections for tanks and pipelines
  • Maintenance-FreeNo calibration or readjustment needed for the medium

Project Data

  • MediumRaw milk
  • Measuring Rangeup to 5 m
  • Process Temperature< 80 °C

Sensors:

  • NivoRadar® NR 8400NivoRadar® NR 8400 featuring a hygienic antenna
  • Vibranivo® VN 7120Vibranivo® VN 7120 in compact and extended versions

Customized Sensor Solutions for Maximum Process Safety

With this combination of radar and vibration technology, UWT meets the high standards of food production: hygienic, reliable, and efficient. At the same time, UWT customizes solutions to fit individual customer needs – whether through a wide range of configuration options for standard sensors or with custom-made special designs.

UWT GmbH
More in Level Control and Measurement / Beverage Processing / Case Studies / Food Processing

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