Monday 16 September 2019

sensor - Measuring water pressure in a tank


I am trying to build a pressure sensor ( PSI gauge ) that will be used to measure and monitor the pressure in a pool water filter. These generally have a mechanical pressure gauge like this....


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What I want to do is use this Freescale Pressure Sensor so that I can electronically monitor the water pressure in the filter. However, it is not waterproof and would mostly certainly be destroyed in little time if used to measure the pressure of a liquid.


Anybody have any idea or experience with use such a sensor in a manner that provides accurate readings while protecting the sensor from the water?


Any other methods that work well for this sort of thing?


Cost is a factor here. I can't spend a lot of money.


Edit: might something like this water pressure sender for cars work?



Answer



Omega is a good source. There are probably cheaper solutions. But in my experience Omega Stainless Steel Transducers are bullet proof. http://www.omega.com/pptst/PX309-100mv.html



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