Issues with the installation location of pressure sensors in above-ground storage tanks
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Issues with the installation of pressure transmitters in above-ground storage tanks: For pressure transmitters operating in the 4-20 mA range, should they generally be installed at the top, bottom, or middle? I’m a beginner in automated programming and don’t understand it; the tank is 5.4 meters tall.
What pressure are you measuring outdoors?
I don’t have any storage tanks that are exposed to the outdoors here; the pressure transmitters for these tanks, whose tops are sealed, are used to measure the pressure inside the tanks, and they are all installed on the top of the tanks. For this outdoor storage tank, where does the pressure transmitter measure the pressure? Aerial storage tanks are at atmospheric pressure, right?
They are all installed on the top; there’s no point in installing them in the middle
This is a differential pressure transmitter used for measuring liquid level, right...
It is likely to measure the gas phase pressure of the storage tank; the pressure measurement point must be located at the top, and it is advisable to install the transmitter there as well.
Check the unit of the transmitter; it’s at the top of the tank
You not only don’t understand this, but you also have no foundation at all. If you want to program, start by studying the instrument manual; if you want to measure pressure, look at the relevant section, and if you want to monitor liquid level, look at another section