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WATER LEVEL measurement MP3V5050DP

Question asked by Artem Puponin on Nov 19, 2018
Latest reply on Nov 29, 2018 by JOSE ALBERTO REYES MORALES

Hi!

I just want to measure water level sensor in tank with water using mp3v5050 pressure sensor. Before i do it i have made a simle test equipment from tube diameter 32 mm and in the botom of it i made a think copper and silicone tube output to sensor. Because sensor is upper lower level of water in tube every time present air bulb. I fill my tube with water (app 1liter). The sensitivity is really awesome. The voltmeter from sensor sense 1 mililiter of water! But i have a trouble. The voltage out from sensor every day go down. First measure is - 0.745V,   1st day - 0.738V........6 day 0.705V. And this is not evaporation water.  I make a mark on water level and it does not change. I have now ideas what is it. Please give some advice about this situation. My schema of test equipment:   

 

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