MEASURING PRINCIPLE

FUNCTIONALITY

A hollow ring, free to rotate on bearings and half filled with fluid,is divided by partition wall “A” into two chambers.

Positive, and negative or differential pressure are applied to the ringbody chambers via flexible tubes “S”.

The pressure differential across the dividing wall “A” causes the ringbody to rotate until an equilibrium is reached with the counterweight “G”.

LONG-TERM-ACCURACY

The calibration of a Ringbalance is entirely determined by the mass of the counterweight “G”.

A weight cannot “age” or become “overloaded”.

THE FILLING FLUID

Since the differential pressure is ultimately balanced by the counterweight “G”, it follows that neither the quantity nor the density of the filling fluid play a role in the actual measurement or in the Ringbalance-Equation.