Metal Tube Rotameter :
It is basically a variable area flow meter. The differential
pressure across the annulus area is constant and the flow
rate is measured as a function of the annulus area created
by ‘Float’ position. The position of the float is sensed by
a magnet and indicated on the dial in terms of flow rate.
Operating Principle : Metal Tube
Rotameter is basically a variable area flowmeter. The
diffrential Pressure across the annulus area is constant and
the Flowrate is measured as a function of the position of
annulus area created by float position.