[Idalina]

I am currently involved in a calibration process of a bubbler flowmeter (ISCO 4230). I am having a big problem because I dont´t know the expression used by the flowmeter to determine the flow, only with the level...I only know that it has a transducer...I tied to use the maning formula and some basic expressions of flow measurement...If anyone could help me, I would be very grateful because this is my graduation final project...