Products Our motto "Technology for Environmental Protection" has long been an inherent part of our product development philosophy and product range. We strive to improve the environment, to make processes which work with greater environmental compatibility and to avoid putting a strain on the environment. We offer you a multitude of innovative solutions, new products and smart concepts. More Informations Industries & Topics Industries & Topics Overview Fuel oil components Fuel oil components Overview Fast and clean oil filter change Avoiding fungal attacks in biofuel More performance with the sintered plastic sieve AFRISO Smart Home AFRISO Smart Home Overview Gateway HG 02 Products Products Overview AFRISOhome App Alexa Smart home applications Smart home applications Overview Leakage security Security Stand-alone applications Stand-alone applications Overview Getting started with AFRIShome Smart Home Craft 4.0 Craft 4.0 Overview OEM-Manifold systems Hydraulic Balancing Hydraulic Balancing Overview VarioQ Vario-DP Tank conversion Hygienic processes AFRISO Smart Home AFRISO Smart Home offers innovative solutions for intelligent home automation. With modern sensors and actuators, you can easily and conveniently control your home. More Informations Service-Center Service-Center Overview Service Contact persons Data exchange formats Catalogs Service-Center Flexible, cost-aware, on schedule, solution-oriented and fast – the AFRISO team always provides the decisive added value. More Informations Training & Events Training & Events Overview Exhibitions Exhibitions Overview SHK+E 2026, Essen IFH Intherm 2026, Nuremberg GET Nord 2026, Hamburg Schulungen & Trainings Schulungen & Trainings Overview Heizen mit flüssigen Brennstoffen Inhouse-Schulung - Heizen mit flüssigen Brennstoffen Inhouse-Schulung Heizölverbraucheranlagen Smart Home Experte Search ... SonarFox® UST 20 5622021O01 SonarFox UST 20-21 Images 3 Back SonarFox® UST 20 | 33559 ultrasonic level indicator manufactured goods Documents Benefits non-contact level measurementeasy adjustment even without mediumrobust housing for rough ambient conditionsSuppression of interference signalsOptional Ex version Application For continuous, non-contact level measurement in open or closed containers, tanks or silos. Suitable for liquid, mushy and pasty media. Ideal for sludge, adhesives, resins and waste water. The device can be easily adjusted even without a medium by means of the programming display with user-friendly menus. It also serves as a local display. Description The SonarFox® UST 20 level indicator uses the physical properties of ultrasonic waves to determine the level. An ultrasonic wave is emitted which is reflected by objects in the sound cone. The time up to the reception of the reflected echo is a measure of the distance. Since the mounting position is defined, it is possible to calculate the filling level of the medium. Type, density and temperature of the medium have no effect on the measurement – the only prerequisite is a reflecting surface. Acoustically diffuse surfaces such as foam or uneven surfaces of bulk solids are to be tested with regard to the application. An optional, additional alignment horn adapter can be used for such media. Installations or stirrers above the surface of the medium can be masked during empty setup. Technical data Downloads Accessories Technical data Measuring rangeUST 20-21: 0.4/10 mResolutionUST 20-21: < 1 mmMeasuring accuracy± 0.15 % FSTemperature errormax. 0.04 %/KMeasuring frequencyUST 20-21: 50 kHzMeasuring interval0–4 sOperating temperature rangeUST 20-21: -30/+60 °Cat process connection up to 90 °C (short-term up to 60 minutes)Process pressuremax. 1 barProcess connectionUST 20-21: PP, G2¼B, with lock nutSupply voltageDC 18 − 36 VOutput signal4–20 mA/HART, 2-wireLoadRmax = 270 Ω at U = 24 VRmax = 180 Ω bei U = 22 VRmax = 90 Ω at U = 20 VRmax = 45 Ω bei U = 19 VCurrent inputmax. 22 mASignal dampingadjustable from 0 to 99 sHousingaluminium die castUltrasonic transducerPVDFDegree of protectionIP 67 (EN 60529)Electrical connectionCable gland M16 x 1.5WeightUST 20-21: 0.6 kgOptionsOutput RS-485 Modbus RTUEx-Ausführung Downloads Ultraschall-Füllstandmessgerät SonarFox® UST 20 Manuals PDF English German Professionelle Fuellstandloesungen Prospekt PDF German English Italian Accessories Accessories and spare parts for level indicators and level controllers Abb. Bezeichnung Programmierdisplays/Vorortanzeigen PD | 56225 Related products
AFRISO Smart Home AFRISO Smart Home offers innovative solutions for intelligent home automation. With modern sensors and actuators, you can easily and conveniently control your home. More Informations Service-Center Service-Center Overview Service Contact persons Data exchange formats Catalogs Service-Center Flexible, cost-aware, on schedule, solution-oriented and fast – the AFRISO team always provides the decisive added value. More Informations Training & Events Training & Events Overview Exhibitions Exhibitions Overview SHK+E 2026, Essen IFH Intherm 2026, Nuremberg GET Nord 2026, Hamburg Schulungen & Trainings Schulungen & Trainings Overview Heizen mit flüssigen Brennstoffen Inhouse-Schulung - Heizen mit flüssigen Brennstoffen Inhouse-Schulung Heizölverbraucheranlagen Smart Home Experte Search
Service-Center Flexible, cost-aware, on schedule, solution-oriented and fast – the AFRISO team always provides the decisive added value. More Informations Training & Events Training & Events Overview Exhibitions Exhibitions Overview SHK+E 2026, Essen IFH Intherm 2026, Nuremberg GET Nord 2026, Hamburg Schulungen & Trainings Schulungen & Trainings Overview Heizen mit flüssigen Brennstoffen Inhouse-Schulung - Heizen mit flüssigen Brennstoffen Inhouse-Schulung Heizölverbraucheranlagen Smart Home Experte Search
Images 3 Back SonarFox® UST 20 | 33559 ultrasonic level indicator manufactured goods Documents Benefits non-contact level measurementeasy adjustment even without mediumrobust housing for rough ambient conditionsSuppression of interference signalsOptional Ex version Application For continuous, non-contact level measurement in open or closed containers, tanks or silos. Suitable for liquid, mushy and pasty media. Ideal for sludge, adhesives, resins and waste water. The device can be easily adjusted even without a medium by means of the programming display with user-friendly menus. It also serves as a local display. Description The SonarFox® UST 20 level indicator uses the physical properties of ultrasonic waves to determine the level. An ultrasonic wave is emitted which is reflected by objects in the sound cone. The time up to the reception of the reflected echo is a measure of the distance. Since the mounting position is defined, it is possible to calculate the filling level of the medium. Type, density and temperature of the medium have no effect on the measurement – the only prerequisite is a reflecting surface. Acoustically diffuse surfaces such as foam or uneven surfaces of bulk solids are to be tested with regard to the application. An optional, additional alignment horn adapter can be used for such media. Installations or stirrers above the surface of the medium can be masked during empty setup. Technical data Downloads Accessories Technical data Measuring rangeUST 20-21: 0.4/10 mResolutionUST 20-21: < 1 mmMeasuring accuracy± 0.15 % FSTemperature errormax. 0.04 %/KMeasuring frequencyUST 20-21: 50 kHzMeasuring interval0–4 sOperating temperature rangeUST 20-21: -30/+60 °Cat process connection up to 90 °C (short-term up to 60 minutes)Process pressuremax. 1 barProcess connectionUST 20-21: PP, G2¼B, with lock nutSupply voltageDC 18 − 36 VOutput signal4–20 mA/HART, 2-wireLoadRmax = 270 Ω at U = 24 VRmax = 180 Ω bei U = 22 VRmax = 90 Ω at U = 20 VRmax = 45 Ω bei U = 19 VCurrent inputmax. 22 mASignal dampingadjustable from 0 to 99 sHousingaluminium die castUltrasonic transducerPVDFDegree of protectionIP 67 (EN 60529)Electrical connectionCable gland M16 x 1.5WeightUST 20-21: 0.6 kgOptionsOutput RS-485 Modbus RTUEx-Ausführung Downloads Ultraschall-Füllstandmessgerät SonarFox® UST 20 Manuals PDF English German Professionelle Fuellstandloesungen Prospekt PDF German English Italian Accessories Accessories and spare parts for level indicators and level controllers Abb. Bezeichnung Programmierdisplays/Vorortanzeigen PD | 56225
