Fill level sensor HYDROCONT® M

Delivery Time: not specified

Level sensor for water and waste water Ø 22mm

4-20 mA – output, optional temperature measurement Pt100, dry capacitive measurement system + over voltage protection

  • Small housing, 22mm radius
  • Food and drink water approved
  • No elongation due to a special cable with integrated steel rope



The fill level sensor Hydrocont M with integrated analogue evaluation electronic is a compact transmitter for continuous measuring of fill levels and temperatures in liquid media. This includes e.g. the measurement of levels in reservoirs, clarification basins, deep wells etc., but also the fill level measurement in closed containers.

For applications, where food or drink water suitability is necessary, a corresponding variant can be ordered.


  • highest strength against pressure and pressure blows
  • high resistance against chemicals and corrosion
  • very good insensitiveness against temperature shocks and EM interference
  • highest accuracy and long term stability
  • also low influence of temperature makes

It is possible to use the fill level sensor Hydrocont M in various applications with liquid media like:

  • water
  • waste water
  • solvents
  • oil
  • sludge
  • grease
  • cleaning agents, etc.

Besides the level measurement it is possible to get the temperature of the medium by an integrated Pt100 resistor in parallel with this sensor.


The fill level sensor Hydrocont M is put into the medium by the carrying cable by using a suitable fixing e.g. cable clamp fixing, screw plug or connection housing.
The liquid medium contacts directly without using a pressure transferring liquid the ceramic membrane. There the liquid causes a deflection of the membrane because of the hydrostatic pressure of the medium. At the maximum deflection the membrane contacts a robust ceramic carrier. Because of this, the membrane come through over pressure of e.g. 25-times of nominal load at a sensor with a pressure range of 0…100 mbar without damage.
The filling level proportional hydrostatic pressure signal of the ceramic membrane is measured by the integrated analogue electronic and converted in a output current signal of 4 to 20mA.
The measurement signal range is adjusted by factory in many standard measurement ranges. A factory provided adjustment by customer specification is also possible.
Optionally a temperature dependent resistor Pt100 in 3-wire-technic can be integrated in the sensor. By this temperature measurement resistor a temperature measurement of the filling medium with removing the lead resistance can be realized in parallel to the filling level measurement. When using a wall mounting connection housing a Pt100 transmitter that is adjusted by customer specification can be integrated.
Integrated over voltage protection components prevents the filling level sensor from destruction by atmospheric influences like e.g. thunderstrike.

Ueberlast_40 Temperaturmessung_integriert 4_20mA_2_Draht Blitzschutz Genauigkeit_0_1 Bauform_schlank
Ausgang 4 bis 20 mA, 2-Draht
Zulässige Speisespannung
Ausgangssignal Strom 4…20mA 11 V bis 45 V DC
Ausgangssignal Strom 0…10V 14 V bis 30 V DC
Ex-Variante 12,5 V bis 25,2 V DC
Restwelligkeit ≤ 2 Vss
Verzögerungszeit Ausgang T90 < 5ms
Zulässige Füllguttemperatur -20°C bis +70°C
Max. Signalspannung 30V (Scheitelwert; gegen Erde)
Nennableitstoßstrom 2 500A (Welle 8/20µS)
Temperaturabweichung ≤ 0,15% / 10 K der Nennmessspanne
Kennlinienabweichung ≤ 0,1% / 0,25%  der Nennmessspanne
Kalibrier-Abweichung ≤ 0,05%  der Nennmessspanne
Langzeitdrift ≤ 0,15% / Jahr der Nennmessspanne
Speisespannungseinfluss ≤ 0,02% / 10V  der Nennmessspanne
Auflösung Unendlich, da analoge Messelektronik
Membran Keramik Standard AL2O3 96%
Abhängesensor Stahl 1.4404
Verschlussschraube Stahl 1.4404
Dichtungen FPM (Viton®) / EPDM / Neopren®
Anschlussgehäuse Polyacetal POM (Delrin)
Einschraubgewinde aus Stahl 1.4404
Tragkabel PE / PUR
Abhängesensor IP68
Verschlussschraube / Anschlussgehäuse IP67
Wandaufbaugehäuse IP65

Dokumentation deutsch


Dokumentation Englisch


Product configurator

    inkl. Prozessanschluss, Maß in mm