AndyWatson
New Member
I'm trying to build a water level sensor using a differential pressure sensor, which you can see here:
https://www.newark.com/NewarkWebCommerce/newark/en_US/endecaSearch/partDetail.jsp?SKU=78H2274&N=0
I've seen a few designs on the web about how other people have used these sensors to measure water level. The sensor gets placed in a watertight container and submerged to the bottom of the volume of water you're trying to measure. Using some fittings and some tubing, one pressure port on the sensor is connected to the ambient air atmosphere via a long tube that rises up and out of the water. The other port simply gets ported to the surrounding water. However, I'm unsure about using this sensor in direct contact with water. The datasheets say "These sensors are intended for use with non-corrosive,non-ionic working fluids;such as air and dry gases." Would water mess it up? I've found a few other "wet/wet" sensors, but they don't have the right pressure ratings, temperature compensation, or voltage requirements for my circuit.
So can I use this sensor with one port in direct contact with the water? Or is there some kind of diaphram I could use to keep a little air in between the water and the actual sensor?
Thanks for any advice.
https://www.newark.com/NewarkWebCommerce/newark/en_US/endecaSearch/partDetail.jsp?SKU=78H2274&N=0
I've seen a few designs on the web about how other people have used these sensors to measure water level. The sensor gets placed in a watertight container and submerged to the bottom of the volume of water you're trying to measure. Using some fittings and some tubing, one pressure port on the sensor is connected to the ambient air atmosphere via a long tube that rises up and out of the water. The other port simply gets ported to the surrounding water. However, I'm unsure about using this sensor in direct contact with water. The datasheets say "These sensors are intended for use with non-corrosive,non-ionic working fluids;such as air and dry gases." Would water mess it up? I've found a few other "wet/wet" sensors, but they don't have the right pressure ratings, temperature compensation, or voltage requirements for my circuit.
So can I use this sensor with one port in direct contact with the water? Or is there some kind of diaphram I could use to keep a little air in between the water and the actual sensor?
Thanks for any advice.