hello, I have the same need to measure water height in a tank except my water tank is an above ground galvanized steel tank about 8 feet tall by 7 feet in diameter holding about 3000 gallons water. Basically I want to know what percent the tank is filled. It has an inlet/outlet valve at the bottom which feeds a 1" PVC pipe. Water passes in both directions through the pipe according to whether the wells are pumping or not.
I have the phidget SBC board. It is about 100 feet from the tank to the SBC.
Is your recommendation the same?
What about this device: http://www.meas-spec.com/downloads/LM_Series.pdf
Could either of these pressure transducer devices be installed with the same PVC pipe by using a T fitting and having the transducer off to the side? I don't want to go inside the tank and install it at the bottom and have to maintain it there.
Does this transducer feed directly into the SBC sensor input, I mean there is not an additional phidget sensor I need, right?
I have 12 V DC available and the PDF link you gave says this should work.
How many wires do I run to the tank for the sensor and electrical needs and what kind of wire should I use?