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Aplisens - SGE-25 Level Sensor


  • 1..500mH2O range
  • 4-20mA
  • ATEX option
  • Marine certification (DNV) option

Product description

The SGE-25 hydrostatic level probe measures liquid levels, based on a simple relationship between the height of the liquid column and the resulting hydrostatic pressure. The pressure measurement is carried out on the level of the separating diaphragm of the immersed probe and is related to atmospheric pressure through a capillary in the cable. The active sensing element is a piezoresistant silicon sensor separated from the medium by an isolating diaphragm. The electronic amplifier, which works in combination with the sensor, and is meant to standardize the signal, is additionally equipped with an overvoltage protection circuit, which protects the probe from damage caused by induced interference from atmospheric discharges or from associated heavy current engineering appliances.


If there is a possibility of turbulence in the tank (for example, because of the mixer operating mixers or a turbulent inflow), the probe should be installed inside a screening tube (e.g. made of PVC). If the probe is to be lowered deeper than 100m, the cable should be hanged at steel lifting rope. Cleaning the probe diaphragm by mechanical means is strictly prohibited.


Options include Exia, DNV approval, cable options, output options and Pt100 sensor.


Applications include tanks, deep wells, waste water, oil/fuel etc

Part numbers

Parts Price Cable length Deviation max Manufacturer part no. Pressure range max
10 m 0,6 % 1 mH2O
5 m 0,6 % 1 mH2O
10 m 0,6 % SGE-25//0-2[m]//PU/L=10 2 mH2O
10 m 0,6 % 2,5 mH2O
10 m 0,3 % 4 mH2O
10 m 0,3 % 6 mH2O
10 m 0,2 % 10 mH2O
20 m 0,2 % 10 mH2O


Aplisens SGE-25 industrial level sensor

0..1mH2O, 4-20mA, 10m PU cable

Technical data

Cable length 10 m
Deviation max 0,6 %
IP class IP68
Material cable PUR
Material of body Stainless steel 316L
Material of wetted parts Hastelloy C, Stainless Steel SIS2350 (316L)
Pressure range max 1 mH2O
Pressure range min 0 mH2O
Signal type 4-20 mA
Supply voltage dc max 36 V DC
Supply voltage dc min 8 V DC
Temperature of media from -25 °C
Temperature of media to 40 °C


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