I am designing a water level monitor for a holding tank and would like to use the Bar02 sensor for some high accuracy readings, with a raspberry pi reading it. My only concern is calibration, the tank is long and wide but only 4-5 ft deep and I’m at around 7000ft in elevation. To get accurate depth readings should I use a second sensor above the surface or is there a way I can calibrate it? if I can calibrate it how frequently should I calibrate it? I know these are usually used in submersible vehicles, but this design will be stationary, so it won’t be able to know the pressure when it enters the water.
I was debating using 2 sensors so I wouldn’t have to re-calibrate the sensor ever and it could just stay submerged indefinitely. When I was looking at the code there didn’t appear to be a way to distinguish between 2 sensors on python, am I missing something?
Thanks all for your input!