Submersible level sensors and level transmitters

Submersible level sensors and transmitters make it very easy to measure the depth of water such as the level of the water tank, depth of a river or level of water in a borehole. The sensor is simply suspended by its strain-relieved cable to the bottom of the tank, borehole or river and it will measure the hydrostatic pressure created by the liquid above the sensor.

As a rough guide approximately 1m of water = 100mbar of pressure. This is then converted into an electrical signal used to calibrate an accurate level measurement in the water tank/river/reservoir/borehole.