Ultrasonic sensor Sonicont® USN4

Delivery Time: not specified

Ultrasonic fill level sensor for liquids and solid materials

  • Logger for up to 500’000 logs
  • Highest operation comfort due to clear text indication
  • 4x switching point and analouge output



The ultrasonic sensor Sonicont USN4 is an electronic level transmitter / level switch for monitoring, control as well as continuous measurement of filling levels in liquids, pastes and coarse bulk materials. Additional application fields are volume or flow measurement.
The software was optimized and extended by a new algorithm. The Sonictrack is a better algorithm for the detection of ultrasonic signals. Thus interference signals e.g. agitators etc. can be recognized even better and thus a safe operation can be ensured.


  • measuring ranges of 2m / 5m / 8m
  • process temperatures from –40°C to +85°C
  • process materials PVDF / CrNi-steel / EPDM
  • availability of extensive equipment
  • functionality predefined vessel types for fast commissioning
  • predefined linearization curves for volume and flow measurement
  • integrated error signal suppression for adaption the installation situation
  • integrated compensation of the process temperature
  • limit value function for two-point control
  • pump control function
  • impulse output function for quantity counter
  • error indication function for error monitoring


  • for level and volume measurement and flow measurement at open channels
  • measuring weirs for water and waste water sector
  • process industry
  • environmental technology
  • storage tanks, storage bunkers, silos

The ultrasonic sensor Sonicont USN4 is suitable for demanding measuring requirements.
Due to its high accuracy and the high flexibility of configuration, the device can be suited a wide variety of applications.
The robust design and the high-quality workmanship turns the device into a very high quality product, which even the most adverse environmental conditions cannot affect, whether low temperatures when used outdoors, high shock and vibration or aggressive media.
A captive laser marking of the type label ensures the identifiability throughout the entire lifetime of the device. Obviously is the optional marking of a measurement point designation resp. TAG, a customer label or of a neutral type label, of course also per laser marking.

A LABS-free resp. silicone-free version, a factory calibration with calibration certificate and a customer specific configuration resp. preset is also optionally available like a material test certificate EN10204 3.1 or factory certifications for drink water resp. food suitability. Customer specific special versions can be realized on request, e.g. software adaption (menu navigation, special functions, etc.), changed terminal assignment resp. connector orientation, design adaption of the user surface, special designs for the process connection.


For measurements in liquids and bulk solids, non-contact level measurement with ultrasound is a proven and cost-effective method. The lack of contact with the medium ensures a long service life and thus a permanently reliable measurement.

Schuettgueter_Fluessigkeiten beruehrungslose_Messung Messbereich_8_m 4_20mA_4_PNP_en Bluetooth_rgb Datenarchivierung
(0)4…20mA 9…30 V DC (verpolungsgeschützt)
0…10V 14…30 V DC (verpolungsgeschützt)
Stromaufnahme ≤ 50mA bis ≤ 100mA (abhängig von Ausgang, Bluetooth® und Us)
Bereitschaftszeit ≤ 1s
Strom 0…20mA 0…20,5mA, max. 22mA
Strom 4…20mA 3,8…20,5mA, min. 3,6mA, max. 22mA
Spannung 0…10V 0…10,5V, max. 11V
Schaltausgang PNP S1/S2/S3/S4
Funktion PNP-schaltend auf +L
Ausgangsstrom 0 bis ≤ 200mA strombegrenzt, kurzschlussfest
Kennlinienabweichung ≤ ±2mm oder ±0,2% des eingestellten Messbereichs
Temperaturabweichung ≤ ±0,006% FS / K
Stahl 1.4404/316L
Stahl 1.4571/316Ti
EPDM – Ethylen-Propylen-Dienmonomer
FPM – Fluorelastomer (z.B. Viton®)
Anschlussgehäuse CrNi-Stahl
Bedienoberfläche PES
Elektrisches Anschlusselement Gerätestecker PUR
Umgebungstemperatur -20°C bis +70°C
Prozesstemperaturen -40°C bis +85°C
Prozessdruckbereiche -0,3bar bis +2bar
Schutzart IP65/IP67 (EN/IEC 60529)

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