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I have a dp type level transmitter to measure the level of liquid nitrogen in a dustbin tank. the high level tapping is present around 2 meters below the tank in its outlet line, and the transmitter is situated around 1 meter above the tank zero which is 3 meters from the high tapping.
generally I follow the formula that differential pressure = height in mm * specific gravity of liquid MMWC.
However, since this is a cryogenic liquid and the liquid turns To gas inside impulse lines, do I need to use some different technique or the zero elevation technique I use for water level etc?
generally I follow the formula that differential pressure = height in mm * specific gravity of liquid MMWC.
However, since this is a cryogenic liquid and the liquid turns To gas inside impulse lines, do I need to use some different technique or the zero elevation technique I use for water level etc?
