Configurable Level Sensors

Level Measurement

The range of SNA submersible sensors is perfectly adapted to water level measurements in natural environments (rivers, canals, etc...) or in loaded effluent structures (pumping stations, storm overflows, ...).

Its full scale, which can be set by the user between 50 cm and 10 m, enables the sensors to be standardized on all sites.

The SND model specifically allows flow measurement due to the possibility to parameterize it using area-velocity conversion tables. The output signal of the sensor then gives the flow measurement directly.


Water level measurements:

  • in natural environments (rivers, canals, etc.)
  • in sewerage networks (pumping stations, storm overflows, etc.)

Flow measurement by integrated area-velocity conversion (SND model).

Main benefits

  • Parameterizable probes (measurement scales, area/velocity conversions)
  • Robust Design
  • High metrological reliability
  • Guaranteed watertightness
  • Venting of the pressure sensor through the cable (double-skinned cable without capillary)
  • Low risk of fouling (sludge, sludge, etc.) due to the flush ceramic membrane (smooth surface) and the absence of a pressure tap hole


  • Installation/Fixing: Suspended by the cable or screwed on pressure tap 1' 1/4 G
  • Materials:
    — 316L passivated stainless steel body
    — PEEK (Polyetheretherketone/PolyEtherEtherKetone) cap
    — Ceramic membrane
  • Cable:
    — Double skin, without capillary
    — Electrical shielding, 2 conductors 0.60 mm² (60mΩ/m cable)
    — Max. length 500m
  • Dimensions: diameter 44 mm, length 90 mm
  • Weight: 560g + 50g per meter of cable
  • Measuring ranges (configurable): 0 - 0.05 Bar to 0 -1 Bar
  • Overall accuracy from 0 to 40°C (includes linearity, hysteresis, repeatability and temperature drift): +/- 0.1% FS max (+/- 1mbar)
  • Long-term drift / constancy (at 25°C): +/- 2 mBar non-cumulative
  • Storage / use temperature: - 20°C to + 80°C / - 20°C to + 60°C in liquid phase
  • Power supply: 8V to 35VDC, limited to 1A
  • Output signal: 4-20 mA

Related products

  • Parameter setting tools: USB ADP converter and Paratronic sensor HMI software
  • PLCs, Data loggers, Telemetry systems


IHM SNA Screen
USB Adapters / Sensors
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