Level Sensors

NivuBar Plus II


Hang-in probe with capacitive ceramic measurement cell

Submersible probe with 4 - 20 mA transmitter for hydrostatic level measurement in water and wastewater. Oil-free capacitive ceramic measurement cell

  • Capacitive ceramic measurement cell
  • Large front-flush diaphragm
  • 2-wire probe
  • High overpressure resistance
  • Integrated overvoltage protection

This hydrostatic level probe has been developed to meet the high demands of industry and environmental protection.
The stainless steel (1.4571) probe body is locked by a capacitive ceramic measuring cell at the bottom and is held by the self-supporting cable on the top.
The probe can be suspended by using a straining clamp.

The non-corrosive enclosure featuring protection IP68 permits universal use for reliable determination of levels in containers, basins, shafts and tanks. The large diaphragm has proven as very reliable, particularly in the wastewater sector.

NivuBar Plus II features ex approval II 1G Ex ia IIC/IIB T4 for Zone 0 as standard and can be installed in any explosive area.

Utilising the widely used 2-wire technology, the installation costs are very low.

Typical applications for NivuBar Plus II

  • Pump shafts
  • Channels
  • Stormwater treatment plants, storage sewers, retention tanks and discharge constructions
  • WWTPs (screening control, tank levels, sludge tanks, levels in open channels)
  • Industrial wastewater networks
  • and many more
Technical Data

600 Ohm / 24 V

1000 Ohm / 32 V



4 - 20 mA, 2-wire

Cable lengths

10, 20, 30, 50, 100 m

special lengths upon request



ø9 mm Polyurethane

Storage temperature

-25 °C to +70 °C

Operating temperature

-10 °C to +70 °C


II 1G Ex ia IIC/IIB T4 IBEx U05 ATEX 1193X

Long-term stability

± 0.1 % FSO / year

Accuracy according to IEC 60770

0,25 % / 0,35 % FSO

Measurement range

1, 2, 4, 6, and 10 mH2O

special measurement ranges upon request


Measurement principle



IP 68


Stainless steel 1.4571

diaphragm: ceramics (AL2O3)


Power supply

12 to 36 V DC

Ex: 12 to 28 V DC


Specifications subject to change.


Data Sheet NivuBar Plus II

Submersible probe with 4 – 20 mA transmitter for hydrostatic level measurement

Overview Pressure Probes

Overview on submersible and screw-in probes for hydrostatic level measurement

Technical Description Rev.10 "NivuBar Plus II, NivuBar G II, HydroBar G II"


Tender Specification Hanging Pressure Probes

Declaration of Conformity "Pressure Probe"

Declaration of Conformity "Pressure Probe" Ex

EC type examination certificate pressure measuring devices

EC type examination certificate pressure measuring devices incl. supplement

System Products
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