UWT GmbH
About us
LEVEL. UP TO THE MAX.
UWT GmbH in Betzigau is the expert in level measurement technology and a reliable, world leading solution provider for the safe and accurate detection of levels and limit values
in silos and material processing across a wide variety of industries. Whether for bulk goods, liquids, pastes or foams - UWT, with their product lines is synonymous with the perfect measurement technology solution for almost every application.
The UWT products are well known under the names:
Rotonivo® - Rotary paddle switch incl. SIL2 version
Vibranivo® - Vibrating fork
Mononivo® - Vibrating rod probe
RFnivo® - Capacitive level switch also with anti-corrosive Teflon® coating for flue gas cleaning
Capanivo® / NivoCapa® - Capacitive level switches
NivoBob® - Electro-mechanical Plumb Bob as well for Interface
NivoRadar® - Radar sensors
NivoGuide® - TDR guided radar
NivoTec® - Level monitoring and visualisation
NivoLED® - Signallamp
With production sites in Betzigau and in Malta, as well as further locations in the USA, Great Britain, China, India, Brazil, Mexico, Spain and Poland more than a million applications have now been put into practice.
UWT stands for level measurement at the highest level worldwide.
The whole enterprise is based on the three strong pillars of technology, performance and partnership together with collaboration at eye level - with customers, suppliers, partners and close to 200 employees.
We have carved out an outstanding and strategic position in the market within the area of limit levels for bulk solids, and set new standards with the rotary paddle switch.
In addition, we offer end-to-end digitalisation: from the latest E-tools, which enable quick and easy product selection, configuration and commissioning, through easy and intuitive operation to innovative device communication, all of which ensure smooth operation.
The high quality and reliability of the UWT products, the robust design, the easy handling and the longevity of the sensors ensure low downtimes, high levels of system availability and thus a high degree of operational security. All made in Germany.
The range of products and services has been continuously developed and now also includes monitoring and visualisation systems as well as complete system configuration. Further proof of how unswervingly UWT GmbH is geared towards growth.
As an owner-managed, German, medium-sized company, UWT is ideally positioned with an international sales network in over 90 countries with personal contacts on site, available locally.
Open and honest communication with customers and partners alike characterise UWT together with its loyal and satisfied employees.
The notable great team spirit ensures that UWT feels like one big family – and that’s what counts.
Products
NivoRadar® NR 8000
The NivoRadar® 8300 offers precise continuous level measurement of liquids, even under the most demanding process conditions. Equipped with a PTFE-encapsulated antenna and a robust flange connection, this radar sensor is the ideal solution for use with aggressive materials. All materials used are chemically resistant, ensuring long-lasting durability and reliable performance. Additionally, the sensor complies with strict SIL 2/3 guidelines and can be supplied in an intrinsically safe manner. Your benefit: * Time-saving and easy commissioning via the UWT LevelApp, the integrated display, or PACTware * Reliable and precise level measurement thanks to 80 GHz radar technology * High durability through the use of chemically resistant materials for maximum resilience
NivoLED®- NL 9000 Signal Lamp – Maximum Safety for Hazardous Areas
The optical visualization of switching states in hazardous areas requires the highest level of safety and reliability. With the NivoLED® NL 9000, UWT offers an innovative and compact LED indicator light specifically designed for dust and gas hazardous areas. The NL 9000 is certified with the ignition protection type "Increased Safety (ec)" for explosive gas atmospheres (Zone 2) and "Protection by Enclosure (tb)" for explosive dust atmospheres (Zone 21). A robust, light-transmitting housing made of non-metallic material and standardized connection threads make the NivoLED® NL 9000 the perfect solution for color-coded switching state indication in green or red. The NivoLED® NL 9000 offers versatile application possibilities: it can be mounted directly on the sensor, on control cabinets, in process installations, or on other electrical equipment to reliably visualize the switching state. In addition to comprehensive explosion protection, the NivoLED® NL 9000 impresses with its strong luminous intensity, 360° visibility, and flexible usability – making it ideal for a wide range of applications.
NivoRadar® NR 3000 - The free-radiating radar sensor NivoRadar® 3200 is mainly used in storage silos for level measurement of bulk solids.
RADAR SENSOR The multifunctional 80 GHz radar sensor, available in two-wire and four-wire technology, provides continuous, non-contact level measurement for bulk solids and works very precisely, even in difficult media. • 3° narrow beam angle • High precision measurement, up to 120 m • Easy configuration via plug-on display, UWT LevelApp, and PACTware • Plastic horn antenna, threaded antenna, lens antenna • Integrated lens cleaner Due to the narrow beam angle, there are virtually no interference signals at the mounting nozzle, and bulk materials with material cones are optimally reflected. The alignment unit allows the beam to be fixed on the desired point, e. g., the silo discharge point. Measuring range/ 120 m (393.7 ft.) tolerance ± 1 mm (± 0.04 in) Pressure range 40 bar g (580.2 psi g) Supply voltage 12 … 35V DC 90 … 253V AC Process connection Thread > 1 1/2" (G | NPT) Compression- / Adapter flange DN80 | 3" Fixed flange DN80 | 3" Adjustable flange DN100 | 4" Process temperaturerange -55 °C .. +250 °C / +1,200 °C with standpipe (-67 °F .. +482 °F / +2,192 °F with standpipe)
RFnivo® 3000 - capacitive level limit switch for solids
The RFnivo® level limit switch is universally applicable in solids and liquids as a full, demand or empty detector in silos and containers. The different device versions withstand extreme process conditions and due to their stainless steel components, are very robust. The RFnivo® measures the capacitance between the probe and container wall. If the probe is covered by the product, the measured capacitance changes and a switching signal is activated. Since each container is different in geometry, the RFnivo® must be calibrated after installation. This is done automatically once the supply voltage has been connected or by pressing the calibration button on the unit. All versions of this device are complete with "Active Shield Technology" which ensures the probe is insensitive to any material build up or caking. This ensures complete reliability of the probe. International certifications for Hazardous Locations (gas and Dust Ex) ensure the device is suitable for a wide range of applications in all industries.
Rotonivo® - The rotary paddle level switch from UWT operates reliably and maintenance-free and offers a compatible solution for plants for safe level detection in bulk solids.
Depending on the requirements, the Rotonivo® rotary paddle switch is used as a full, demand or empty detector in storage silos or process vessels and is suitable for use in almost all solids. With its simple electromechanical measuring principle it can also be adapted for extreme process conditions. A motor driven shaft causes the vane to rotate. Once the material level reaches the vane, thereby preventing further rotation, this creates a torque, which is converted via a switch to an electric signal. Once the vane is free again of the material, the output signal is reset and the motor driven shaft rotates again. This reliable and maintenance-free limit switch for safe level detection in bulk solids has international approvals for use in gas and dust hazardous areas and is also certified to SIL 2. A motor driven shaft causes the vane to rotate. Once the material level reaches the vane, thereby preventing further rotation, this creates a torque, which is converted via a switch to an electric signal. Once the vane is free again of the material, the output signal is reset and the motor driven shaft rotates again. This reliable and maintenance-free limit switch for safe level detection in bulk solids has international approvals for use in gas and dust hazardous areas and is also certified to SIL 2.
Vibranivo® - Vibrating fork for point level measurement, with its robust stainless steel extension and high sensitivity, is widely used in storage silos and process vessels.
The Vibranivo® - vibrating fork, with its robust stainless steel extension and high sensitivity, is widely used in storage silos and process vessels. The Vibranivo® is robust, easy to operate and can, via its series range, be precisely configured for each application. Electronically stimulated piezos cause the fork to vibrate. As soon as the sensor is covered with material, the vibration is dampened and the resulting electrical current change causes the output signal to switch. Once the material level falls below the sensor, it is free to vibrate again and the output signal is reset. International approvals for use in hazardous locations (gas and dust).
Mononivo® - Vibrating rod
It has often been the case that a single rod probe, using the vibrating principle and having universal design capabilities, is required. This measurement principle has become well-established on the international market. Due to its high compatibility (even with the standard version), it is much favored by plant operators. UWT has responded to the wishes of their customers with a product series that uses this vibration measurement principle in the form of a single rod probe called Mononivo® MN 4000. The Mononivo® MN 4000 vibrating single rod • is a point level detector • that can be used in silos and tanks • as a full, demand or empty detector Electronically stimulated piezos cause the single rod probe to vibrate. When the material covers the sensor, this causes the vibration to stop and a voltage change is caused within the piezo elements. This is electronically registered and causes the output signal to switch. The Mononivo® is an All-rounder: • Various changing factors • Threads from 1" • Appropriate as an overfill detector within pipes and shafts • Explosive environments • Adjustable sensitivity • Very light material > 20g/l • Easy installation and commissioning • Maintenance free The Mononivo® offers a measurement solution that can be quickly and easily realized. Focus is on a particularly high compatibility for different container vessels and conditions, what means more flexibility for users and plant operators.
NivoBob® NB 3000 - Electromechanical Sensor
Continuous Level Measurement The NivoBob® - series of plumb bob sensors is used for continuous level measurement within bulk storage silos and for interface measurement. The simple electromechanical measurement principle is a truly reliable all-rounder in most bulk materials. The sensor weight, made of a suitable material, attached to either a tape or rope is electromechanically lowered from the top into the vessel. Once the sensor weight rests on the material, the winding direction of the motor changes and the sensor weight is rewound to the upper stop position. For interface measurements, the sensor weight can be adjusted according to the density of the sediment. The distance is electronically measured and together with the programmed silo geometry information the microprocessors convert this distance into a volumetric output signal. The NivoBob® generates an analog 4-20 mA signal and a Modbus RTU or Profibus DP interface for the evaluation systems. As the system is immune to dust, dielectricity, conductivity, humidity and caking, the NivoBob® always delivers a reliable level signal. The system is simple to operate and extremely durable which keeps service and operating costs to an absolute minimum. UWT can offer a 5 year warranty on this product.
NivoBob® NB 4000 - microprocessor controlled measuring system
The challenge was an animal feed plant in Russia, required a reliable, maintenance free and economically priced content measurement for many of their storage silos (raw materials and granular). They were trying several technologies before approaching UWT for a solution. The difficulty in this application surely is the dusty environments as well as aggressive physical properties of some of the materials. The ideal solution from UWT is the NB 4200 electromechanical level measurement system which is well proven in this kind of applications around the globe. The big advantage is the easy operational set up as well as the long life time and the trouble free operation of this instrument. The electromechanical technology is insensitive of the physical material properties and is available in a tape version with an integrated tape cleaner that prevents the dust to enter into the mechanical chamber of the unit. This feature increases the life time of the units as it minimizes wear & tear. Another strong point for this instrument is the economical pricing of the instrument.
RFnivo® 8000 - Capacitive sensor for point level measurement in liquids
RFnivo® 8100 - Standard Version • Full, Demand, Empty Detector • Shaft is selectable as - Rod version (vertically, horizontally and oblique installation) - Rope version (vertical installation) • Wide range of applications in liquids and solids. • Suitable for use in applications with high pressure - up to 35bar and process temperatures up to 200°C. • Measurement of low DK values (from 1.5). • Active Shield Technology against material build-up. • Electronics housing made of die-cast aluminum, protection class IP 68/NEMA 4. • Approvals for hazardous locations (gas and dust-Ex). • High chemical resistance on probes. • No maintenance RFnivo®8200 - High Temperature Version • Full, Demand, Empty Detector • Suitable for process temperatures of up to 400°C • Rod version (vertical, horizontal, oblique installation) • Wide range of applications in liquids and solids. • Suitable for use in applications with high pressure - up to 35bar and process temperatures up to 400°C. • Measurement of low DK values (from 1.5). • Active Shield Technology against material build-up. • Electronics housing made of die-cast aluminum, protection class IP 68/NEMA 4. • Approvals for hazardous locations (gas and dust-Ex). • High chemical resistance on probes. • No maintenance
NivoCapa® NC 8000 - Continuous level measurement in nearly all applications.
UWT NivoCapa® NC8000 capacitive sensors are used for continuous level measurement in liquid and bulk solids applications. The rod version of the NivoCapa® has a measuring range of up to 5m and in the rope version up to 25m. Its high sensitivity starting at a DK value of 1.5 brings functional reliability and makes it flexible to use in many media. The NC8000 is a 2-wire instrument that combines easy-to-set electronics with field-proven probes. The probe measures the electrical capacity in the process, which is proportional to the level in the tank. The Active Shield technology protects the measurement against malfunctions because of cacking. Even at high process temperatures and pressures, the NC8000 capacitive sensor delivers reliable measurement results.
NivoGuide® NG 3000 Continuous Level Measurement in solids
UWT NivoGuide® radar sensors are used for continuous level measurement in bulk solids applications. The measuring range of up to 75m (246ft) and its high sensitivity from a DK value of 1.5 make it usable in almost all bulk solids. The measuring signal is guided on a rod or rope and is reflected by the medium, received again at the sensor and converted into a level signal. This makes it possible to measure reliably even in narrow and tall containers, regardless of the formation of dust or condensation. The NivoGuide® can also be used in high process pressures and temperatures. A menu-driven quick start wizard makes commissioning easy and safe. • TDR-sensor for level measurement in solids • Automatic probe end tracking makes it suitable for use in almost all solids • High flexibility by shortenable probe length • Measuring range up to 75m • Easy commissioning by quick setup guide • Works in applications with buildup, dust or condensation. • Easy setting and diagnosis with control module and display. • Process temperature up to 200 ° C. • A variety of approvals available. • Rod and rope version. • High chemical resistance of the probe. • High pressure and high temperature versions.
Capanivo® CN 4000 - Capacitive Level Limit Switch for solids
The Capanivo® level limit switch can be used in many solids as a full, demand or empty detector. The robust, glass reinforced PPS (Polyphenylene Sulfide) sensor is even suitable for food applications whilst also resistant to many forms of aggressive material. The Capanivo® can be used in storage and process vessels, or in pipes, as a limit switch and spillage detector. The electrodes in the sensor make up a condensator. As the level of the material changes, the capacitance changes as well. The integrated electronics evaluate the change in capacity and convert it to a switching signal. The Capanivo® has approvals for hazardous Locations (Dust Ex) and is therefore suitable for use in most industries as a limit switch. • Price competitive level control device. • Simple installation and set up, no calibration required. • Maintenance free, corrosion resistant, suitable for a wide range of applications. • Reliable and easy to operate measurement principle. • Plastic or die-cast aluminium electronics housing. • Protection class IP 66. • Certification for use in dust-Ex Areas. • High sensitivity from a DK range of 1.6.
The Capanivo® CN 7000 Capacitive level limit switch for liquids
Capanivo® capacitive level switches are universally applicable in bulk solids, granulates, powders, liquids, highly viscous oils, slurries and pastes as full detectors, overfill protection, demand or empty detectors, as level switches or for interface measurement in mixers, silos, tanks, process vessels, hoppers, troughs as well as channels and pipelines. Due to different device versions, installation situations from above, below, the side or with little space requirement can be realized. Further the capacitive sensors of the Capanivo® CN 7000 and CN 8000 series can be used for single media detection (e.g. when foaming) or as sensors for leakage detection. The robust sensor tip made of fiberglass-reinforced plastic is suitable for use in foodstuffs as well as being resistant to aggressive chemical media. The Capanivo® can be used in storage tanks, silos and process vessels or also in pipes as a level switch, back pressure detector, as dry run protection or as a valve control. As a capacitively measuring sensor it reacts with a change in capacitance when the sensor tip is touched by a solid, liquid or foaming medium and then switches a signal output (relay or transistor). The versions for solids additionally have active lug compensation due to the built-in Active Shield technology ensures reliable functionality within applications with foam, bridging, material deposits, caking or other types of buildup properties. In addition to WHG or SIL 2 approval, the various sensors in the Capanivo® series also have international approvals for gas and dust explosion hazardous areas. This makes them the ideal solution for most industries when it comes to level monitoring.
NivoGuide® NG8000 - Guided Radar TDR
• TDR-sensor for level measurement in liquids • High flexibility by shortenable probe length • Measuring range up to 75m • Easy commissioning by quick setup guide • Maintenance free • Standard rod version. • Works in applications with vapour, buildup, foam generation and condensation. • Easy setting and diagnosis with control module and display. • Process temperature up to 200°C. • Process pressure up to 40bar. • A variety of approvals available. • High chemical resistance of the probe
Interface measurement - specific solutions
Continuous level measurement The plumb bob series NivoBob® NB 3300/3400 meets the requirements of many interface measurements and are very reliable due to the simple measuring principle. A 4-20mA analog signal as well as a Modbus RTU/Profibus DP interface are available for level evaluation. Level limit measurement Vibration forks of the Vibranivo® series VN 1000 or VN 5000 can be used to measure limit levels of slurries and solids in liquids. The wetted parts are made of resistant stainless steel. With the VN 1030 and VN 5030 versions, even depths of approx. 4m can be realized when installed from above in a tank or basin. The high sensitivity required for the respective solids detection can be easily set on the electronics. Continuous level measurement With the capacitive sensor NivoCapa® and the guided radar NivoGuide® NG 8000 series, UWT offers two reliable sensor families that meet all expectations of various media, which have to be measured, different requirements as well as installation positions. The capacitive measuring method perfectly suits interface measurements where an emulsion layer developed. Guided radar technology allows concurrent detection of the interface and the total level with only one sensor. The capacitive measurement method is ideal for precisely detecting or measuring the interface between two liquids or between a liquid and foam. Sensors for interface measurement must often have a correspondingly high sensitivity, a high chemical resistance and a robust construction against mechanical stress and deposits or buildup. With the capacitive sensor Capanivo® 7000 and Capanivo® 8000 series and the RFnivo® 8000 series, cable or rod sensor versions.
NivoTec® - Level monitoring and visualisation
NivoTec®- Level monitoring and visualization system Various technologies are available for level indication. Simple LED digital displays for the evaluation of a 4-20 mA signal for installation in control cabinets or up to wall mounted touch panels and web server modules with visualization software. These can then be configured on a project by project basis and adapted to customer requirements. UWT has standardized product versions of the NivoTec® NT 4000 series, which meet many requirements of a level indicator and monitoring at a cost effective price. The NT 2000 series includes control cabinet modules with local display and control elements, which is useful for a limited number of containers. The NivoTec® NT 3000 series can be individually adapted to the customer's project. This web server solution meets all requirements of modern silo level monitoring.
Capanivo® CN 8100 / Capacitive Sensor for point level measurement
The capacitive level detector Capanivo® 8100 is used in storage and process vessels as a full, demand and empty detector in all liquids. Due to different probe versions, a suitable solution will be found for every installation setting. A robust construction allows service at process temperatures up to +125 °C and a process overpressure up to 25 bar. Your benefit: - Simple commissioning without adjustment to the medium - Adjustable hysteresis avoids unnecessary switching and thus increases the service life of the system - Reliable measurement results even with strongly adhering material
NivoRadar® NR 4100 / The non-contact 80 GHz FMCW radar sensor NivoRadar® NR 4100 with a very narrow beam angle of 4° is used in various industrial applications.
Application area The non-contact 80 GHz FMCW radar sensor NivoRadar® NR 4100 with a very narrow beam angle of 4° is used in various industrial applications in storage silos, process tanks and IBC containers or on stockpiles for continuous level measurement. The free-radiating level transmitter has a compact design with a 1" process connection (PVDF) and a measuring range of up to 30 m as well as a very fast response time. The radar sensors are food compliant, WHG-certified and suitable for use in hazardous areas. The radar level transmitters have a high dust protection class and can be used in abrasive bulk materials as well as materials prone to caking. Your benefit - Reliable and high-precision measurement results independent of medium properties and ambient conditions for trouble-free operation - Inexpensive and at the same time durable, robust and maintenance-free measurement technology - Simple and user-friendly configuration, commissioning and diagnosis of the radar level sensor via the UWT LevelApp.
NivoRadar® NR 7100/7200 - The non-contact 80 GHz FMCW radar sensor NivoRadar® NR 7100 with a narrow beam angle of 8° is used in various industrial applications in storage silos, process tanks and IBC containers for continuous level measurement.
The free-radiating level transmitter has a compact design with a 1 1/2" process connection (PVDF) and a measuring range of up to 8 m as well as a very fast response time. The food-compliant radar devices are suitable for use in processes in the food industry. The radar level transmitters can be used in aggressive media such as acids, alkalis and solvents as well as in highly viscous liquids and oils. Your benefit: -Reliable and high-precision measurement results independent of medium properties and ambient conditions for trouble-free operation -Inexpensive and at the same time durable, robust and maintenance-free measurement technology -Simple and user-friendly configuration, commissioning and diagnosis of the radar level sensor via the UWT LevelApp.
Vibranivo® 7000 Vibrating fork for level measurement in liquids
The Vibranivo® VN 7000 is a vibration level switch specifically designed for detecting liquids. This versatile sensor operates effectively in various types of containers, pipes, or agitator tanks, making it ideal for a wide range of applications in the food industry, breweries, dairies, the chemical and petrochemical industries, as well as in the water and wastewater sectors. The Vibration Fork is also highly effective for leak detection in double-walled containers, tanks, or catch basins. Hassle-Free Setup: Save time with easy commissioning—no calibration needed Dependable Performance: Achieve accurate measurements, even with material buildup, flow variations, turbulence, or air bubbles Cost-Effective Operation: Enjoy zero maintenance and servicing costs for long-term reliability
News
Active Shield: Reliable measurement despite material build-up - With the RFnivo® Series by UWT
Even if material or condensate deposits directly on the sensor body, the measurement signal remains stable and unambiguous.
Establishment of a UWT subsidiary in Poland
Shaping the future together
Continuous Level Measurement with 80 GHz FMCW Radar for the Most Demanding Applications
Versatile Designs for Accurate Results in Challenging Media
Precise Level Measurement with Non-Contact Radar Non-Contact Radar Measurement: The Technology Behind NivoRadar® Sensors
How Does Non-Contact Radar Measurement Work?
With UWT for Greater Efficiency and Durability in the Synthetics Industry
UWT – Taking your processes to the next level.
