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Hydrocont LK

Hydrocont LK

Hydrostatic fill level sensor Hydrocont® LK

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  • Level probe as a probe or suspension suitable for outdoor installation

  • Compact hydrostatic level measurement, with dry, capacitive sensor. Analog output 4 ... 20mA or 0 ... 10V

  • Pressure ranges 0...0,1 bar to 0...1 bar

  • Ceramic membrane

  • Useable as put in sensor of for outside installation

  • Suitable for wide process temperature range from – 40 °C to +100 °C

  • Suitable for wide process temperature range from – 40 °C to +100 °C

  • Integrated evaluation electronic in 2-wire-technology with current signal 4...20 mA in 3-wire-technology with voltage signal 0...10 V


Application description

The device Hydrocont® LK with integrated analogue evaluation electronic is a compact hydrostatic transmitter for continuous measuring of filling levels in liquids at hydrostatic pressures from 0 up to 1 bar within pressure less container, at process temperatures from – 40°C to +100°C.

The use of a capacitive measuring sensor with ceramic membrane, allows the use in nearly all fields of industry.

Application fields are e.g. the measurement of levels in reservoirs, clarification basins, deep wells etc., but also the filling level measurement in closed containers at liquids, like e.g. water, waste water, solvents, oil, sludge, fat, cleaning liquids, etc.

Function description

The device Hydrocont® LK is used for filling level measurement by measuring the hydrostatic pressure.

The device can be alternatively used as put in sensor that is sunken down into the liquid by the carrying cable and a suitable fastening, e.g. cable clamp fixing or screw plug or also be screwed-in from outside into the container wall.

Technichal data

2-wire 4 .. 20 mA: 10 V DC .30

3-wire 0 .. 10 V: 14 .30 V DC

Current consumption:

   2-wire4 .. 20 mA ≤ 30 mA

   3-wire 0 .. 10 V ≤ 6 mA



Accuracy: ≤ ± 0.1% / 0.25% FS

Long term drift: ≤ ± 0.15% FS year / non-cumulative

Temperature deviation: ≤ ± 0.15% FS / 10 K



Membrane: ceramic AL2O3 96% (medium contact)

Process connection: steel 1.4404 (AISI 316L) / 1.4571 (AISI 316Ti) (medium contact)

Housing tube: stainless steel

Seals: (medium contact)

   FPM - Fluor rubber (Viton®)

   EPDM - ethylene-propylene diene monomer

   NBR - Nitrile Butadiene Rubber

Cable: Cable sheath Polyethylene PE


Environmental conditions

Ambient temperature: - 20°C ... +70°C

Process temperatures: - 20°C ... +70°C

External mounting of process connection: - 40°C ... +100°C

Process pressure ranges: 0 .. 1 bar

Protection: IP68 DIN EN 60529