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.

Applications

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

Specifications

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