UWT
  • Offer Profile
  • UWT GmbH is one of the world's leading manufacturers of measurement technology for the detection and monitoring of levels, limit levels in any kind of bulk materials and solids. We have successfully demonstrated that over the decades a family owned business can, with with clear principles, dedicated employees and innovative thinking, make a difference.

    Reliability, quality and flexibility - these are the core values which underpin the UWT ethos.
Product Portfolio
  • Point Level Measurement

  • Limit detection is required in most silos and containers to avoid overfilling or unnecessary downtime. This means that the sensor needs to handle a variety of process conditions within a wide range of industries. This, for example, can be high temperatures and aggressive media in filters or reactors, or very light materials such as styrofoam in the processing or storage stages, and in the promotion of silica.
    So in meeting all the conditions that are presented we are able to offer an appropriate sensor for each application.
      • Rotonivo®

      • Rotary Paddle Level Switch
        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.
          • RN 3001

          • Full, demand, empty detector
            Short version
            • Vertical, horizontal and oblique installation.
            • Compact boom length, from 70mm.
            • Particularly suitable for small process vessels.
          • RN 4001

          • Full, Demand, Empty Detector
            Short version
            • Vertical, horizontal and oblique installation.
            • Ideal detector for process vessels or small storage containers.
          • RN 6001

          • Full, Demand, Empty Detector
            Short version
            • Vertical, horizontal and oblique installation.
            • Compact boom length, from 70mm.
            • Particularly suitable for small process vessels.
            • Increased space within housing allows for ease of access for wiring.
            • Flameproof version available for use within potentially explosive atmospheres (gas).
            • SIL 2 certified.
        • Vibranivo® - Vibrating fork

        • Vibration Level Limit Switch
          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).
            • VN 1020

            • Full, Demand, Empty Detector
              Short version
              • Vertical, horizontal and oblique Installation.
              • Compact from 165mm shaft length.
              • Ideal for small process vessels and large sized silos.
              • Mechanically highly durable due to short shaft length.
              • Also suitable for interface measurement of solids and liquids.
            • VN 2020

            • Full, Demand, Empty Detector
              Short version
              • Vertical, horizontal and oblique installation.
              • Compact extension length: 235mm.
              • High sensitivity from 5g/l.
            • VN 4020

            • Full, Demand, Empty Detector
              Short version
              • Vertical, horizontal and oblique installation.
              • Cost competitive detector.
              • Compact extension length: 170mm.
              • Ideal for small process vessels and large silos.
              • Able to withstand high mechanical loads due to short extension length.
            • VN 5020

            • Full, Demand, Empty Detector
              Short version
              • Vertical, horizontal and oblique installation.
              • Compact extension length: 165mm.
              • Easy access for wiring via larger electronics housing.
              • Flameproof versions available for use in potentially explosive atmospheres (gas)
              • Suitable for small process vessels or large silos.
              • Suitable for solids measurement within liquids (interface measurement).
            • VN 6020

            • Full, Demand, Empty Detector
              Short version
              • Vertical, horizontal and oblique installation.
              • Compact extension length: 235mm.
              • High sensitivity from 5g/l.
              • Easy access for wiring via larger electronics housing.
              • Flameproof versions available for use in potentially explosive atmospheres (gas).
            • Vibrasil 70

            • Full, Demand, Empty Detector
              Short version, pipe or cable extension shaft from series VN2000 / VN6000 series
              • Ideal for extremely light or pneumatically conveyed bulk solids.
              • Verz high senstivity <5gl.
              • Shaft with Aluminium fork.
            • Vibrasil 90

            • Full, Demand, Empty Detector
              Short version, pipe or cable extension shaft from series VN2000 / VN6000 series
              • Ideal for extremely light or pneumatically conveyed bulk solids.
              • Very high senstivity <5gl.
              • Shaft with aluminium fork.
          • Capanivo®

          • Capacitive Level Limit Switch
            The Capanivo® level limit switch can be used in many solids and liquids 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 (Dest Ex) and is therefore suitable for use in most industries as a limit switch.
                • CN 4020

                • Full, Demand, Empty Detector
                  Short version
                  • Vertical, horizontal, oblique installation.
                  • Very short shaft length available...from 155mm.
                  • No calibration required.
                  • Active coat compensation
            • RFnivo®

            • Capacitive Limit Switch
              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.
                  • RF 3100

                  • RF3100 Standard Version
                    Full, Demand, Empty Indicator

                    Shaft is selectable as
                    • Rod version (verticaly, horizontaly and oblique installation)
                    • Cable version (vertical installation)

                    Both versions are available as remote versions with remote electronics housings available (for example, for use in applications/processes with heavy vibration)
              • Flexinivo®

              • Height adjustable level limit switch
                The Flexinivo® FN6 is a height adjustable level limit switch for volumetric level measurement. For example, it is used in dosing and mixing containers or tanks, where exact aggregate volume measurement is required for example such as in the adding of Perlite.
                The FN6 operates by moving the vibrating fork in the container with millimetre precision using an external motor via a flat cable. The position measurement is served by a 4-20mA signal encoder or the millimetre impulses of an incremental encoder. The filling of the container is halted by the vibrating fork which responds to contact with the product.
                The Flexinivo® FN6 is the optimal solution for process applications, where precise level detection is required in batch control systems.
                    • FN 6

                    • Difficult product application conditions such as heavy dust, loose weight fluctuations or density fluctuations do not affect the functional safety of this device
                      • Maintenance free
                      • Highly stable flat cable - flexible and tear resistant due to integrated aramid fibres.
                      • Mechanically adjustable flow limitation
                      • Flat cable cleaner within the probe
                      • Measuring fork bracket in stainless steel
                • Kondunivo®

                • Conductive Level Limit Switch
                  Kondunivo® level limit switches are used for the measurement of liquid or sludge in open or closed containers.
                  These devices are used in process control to prevent vessel overfill or unnecessary idling or for pump control.
                  The Kondunivo® measures the conductivity between its electrodes or the vessel wall. When the electrodes are in contact with a conductive product, the electronic switches a relay as a signal output. The probe can be precisely adjusted to the material to be detected.
                  The robust construction of the probe is ideal for use within the construction industry, for example, in plastering machines, or in wastewater plants.
                      • KN 2700

                      • Full, Demand, Empty
                        1 Point Level Monitoring
                        • Standard version for metal containers.
                        • Probe measures conductivity between the electrode and the vessel`s metallic wall.
                        • Installation in vessel wall.
                        • Highly robust construction.
                  • Content Measurement

                  • In the area of continuous level measurement of bulk solids within silos, process vessels or open bunkers varying conditions need to be considered to ensure the perfect measurement solution is to be found for the application. These conditions include silo and tank geometry, installation position of the sensor, properties of the medium such as flowability, bulk density, conductivity, moisture, dust and adhesion.
                    Plus the required approvals such as explosion protection may need to be included and considered.
                    UWT will help you through the selection of sensors and will provide you with the right solution.
                      • Nivobob®

                      • 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.
                          • NB 3100 Rope Version

                          • Continuous Level Measurement
                            • Suitable for use in most granular and coarse bulk materials.
                            • Threaded or flange mounting.
                            • Measuring range up to 30m.
                            • Convenient level monitoring via Modbus interface together with price competitive Nivotec 3500/4500.
                          • NB 4100 Rope Version

                          • Continuous Level Measurement
                            • Suitable for use in most granular and coarse bulk materials.
                            • Threaded or flange mounting.
                            • Measuring range up to 30m.
                            • Convenient level monitoring via 4-20mA analog signal together with price competitive Nivotec 3500.
                          • SLB 300

                          • Continuous Level Measurement
                            • Suitable for most bulk solids
                            • Integrated tape cleaner to remove aherent materials.
                            • Mounting with threaded or flange connection.
                            • Measuring range up to 70m.
                            • Convenient level monitoring via 4-20mA signal together with Nivotec 3500.
                        • SITRANS - LR560

                        • Continuous Level Measurement
                          SITRANS LR560 radar sensors are used for continuous level measurement in bulk storage silos. This compact sensor measures distances up to 100m (328ft) and due to its high sensitivity it is suitable for measurement of almost all bulk materials.
                          The 78GHz FMCW radar uses two-wire technology and is commissioned via a local programmer with display and an easy to operate Quick Start Wizard. The high frequency signal with its small beam angle of 4° and its very short wavelength allows optimum reflection of the bulk solids material even when faced with a large material mound and can be used for continuous monitoring of solids in silos up to 100m. The fequency difference, which is directly proportional to the distance, is then processed and provided as a level signal. This makes the sensor suitable for use in narrow, tall silos and simplifies the installation and commissioning of the device.
                          The ability to withstand high process temperatures and dusty atmospheres means that this free radiating radar sensor provides accurate and reliable measurement results making it the perfect all-rounder for most types of bulk solids.
                              • SITRANS LR560

                                • SITRANS LR560
                                • SITRANS LR560
                                • Content Measurement in Solids
                                • Compact unit with aiming flange.
                          • Interface measurement

                          • Continuous Measurement
                            There are several industries where the level detection of sludge or solids within liquids is required. For example within sediment tanks/containers, filters or lamella separators within the metal industry, chemical plants, in limestone or gravel plants and within the wastewater industry. This requirement depends entirely on the accuracy and stability of the sensor. In many of these situations, the presence of pollution, chemicals and gases mean that the sensors must possess particular resistance. The Nivobob series 3300/3400 meet the needs of many interface measurements. Their simple and straightforward measuring principle ensure total reliability. The level evaluation and monitoring is via an analog signal 4-20mA and Modbus RTU / Profibus DP interface.

                            Point Level Measurement
                            The VN1000/5000 series are used for level limit measurement of sludges and solids in liquids. All wetted components are made of stainless steel. Via the electronics setting the sensitivity of the control can be adjusted according to the interface layer.
                              • NB 3300 Rope Version

                              • Interface Measurement
                                • Suitable for the continuous level measurement of sludges and solids in liquids
                                • Continuously reliable measurement results.
                                • Flange mounting
                                • Measuring range up to 30m.
                                • Version with improved corrosion resistance for chemical and salt applications.
                                • Sensitivity adaptable depending on sediment density.
                              • NB 3400 Tape Version

                              • Interface Measurement
                                • Suitable for the continuous level measurement of solids in liquids.
                                • Integrated tape cleaner to remove aherent materials.
                                • Continuously reliable measurement results.
                                • Flange mounting
                                • Measuring range up to 40m.
                                • Version with improved corrosion resistance for chemical and salt applications.
                              • VN 1020

                              • Full, Demand, Empty Detector
                                Short version
                                • Vertical, horizontal and oblique Installation.
                                • Compact from 165mm shaft length.
                                • Ideal for small process vessels and large sized silos.
                                • Mechanically highly durable due to short shaft length.
                                • Also suitable for interface measurement of solids and liquids.
                              • VN 1030

                              • Full, Demand, Empty Detector
                                Tube extension version
                                • Vertical, horizontal and oblique installation.
                                • Mechanically highly durable due to short vibrating forks.
                                • Shaft length up to 4000mm available.
                                • Flexible height adjustment
                                • Also suitable for Interface measurement.
                              • VN 5020

                              • Full, Demand, Empty Detector
                                Short version
                                • Vertical, horizontal and oblique installation.
                                • Compact extension length: 165mm.
                                • Easy access for wiring via larger electronics housing.
                                • Flameproof versions available for use in potentially explosive atmospheres (gas)
                                • Suitable for small process vessels or large silos.
                                • Suitable for solids measurement within liquids (interface measurement).
                              • VN 5030

                              • Full, Demand, Empty Detector
                                Tube extension version
                                • Vertical, horizontal and oblique Installation.
                                • Mechanically highly durable due to short vibrating forks.
                                • Shaft length up to 4000mm available.
                                • Flexible height adjustment
                                • Ease of access to larger electronics housing for wiring.
                                • Flameproof versions available for use in potentially explosive atmospheres (gas)
                                • Suitable for interface measurement of solids in liquids.
                            • Nivotec® - Level monitoring and visualisation

                            • Complete systems for fill level and trend display, data storage and remote fill level information.
                              Here we are able to move and communicate with flexibility between our monitoring and control systems. This is by way of the NT2000 series and NT 3500 which are specifically adapted to the needs of our customers and are modular and expandable together with our standardised and cost-effective NT 4000 series.
                                • NT 2000

                                  • For systems with up to 10 silos
                                  • Truck module for the tanker trucks to prevent overfilling of silos
                                  • Project planning undertaken with full consultation with the customer to ensure any special requirements can be met
                                  • Complete system with project specific electrical plans
                                  • Installation and commissioning can be carried out by either the customer or by the UWT Service Department
                                • NT 3500

                                • Level Visualisation via Webserver (Flexible / modular extendable)
                                  • User-friendly and flexible level visualisation configuration.
                                  • Simultaneous access to multiple computers on the Ethernet via browser software, no license cost.
                                  • Suitable for connecting all standard signal level sensors.
                                • NT 4500

                                • Level Visualisation via Webserver (Standardised solution)
                                  • Standardised, cost-effective level visualisation.
                                  • Easy to use software for up to 30 silos and bins.
                                  • Access to multiple computers simultaneously via Ethernet using the browser software. No license costs.
                                  • Nivobob sensors connected via Modbus RTU and all other level sensors using analog signal 4-20mA.
                                  • Fully wired in the control cabinet or on a DIN rail mounting module with electrical design.
                              • Consultation, Project Management and Technical Support

                              • Can we help you with the selection of a reliable measurement technology? Or perhaps you have some questions about our systems and devices?
                                The starting point is the initial contact where with professional advice we can take you from here through to a successful conclusion, where we will manage and oversee the installation and commissioning stage.
                                  • UWT Service

                                  • Good customer service does not end with the sale. This is just the beginning. The Service Team at UWT will support you with professional maintenance, installation, commissioning and and full customer care throughout.
                                    Whether it be individual services, which are charged pro rata, or an all-inclusive fixed price service package, one thing holds true for all services offered by UWT - our experts will not rest until the customer is completely happy.