Mass Flow

The damping makes it possible to damp the fluctuations of the measured values of the mass flow rate:

on the display,
on the totalizers,
on the PLC input.

The damping set for an analog output comes in addition to the damping of the mass flow rate.

The damping is not applied to the new measured value if the 2 following conditions are met:

a Low, Medium or High damping level is active,
and the variation between 2 values that are measured one after the other is higher than 30 % (for example when charging the pipe or stopping the flow).

By default, the measured mass flow rate values are damped with the level Medium.

The Low damping level or no damping at all (None) are suited for applications/processes that need fast response times.

If the absolute (and possibly damped) measured mass flow rate is less than the cut-off value plus a hysteresis value, the mass flow rate value is set to 0:

the display then shows a mass flow rate = 0.
the outputs and the totalizers react as if the actual mass flow rate were equal to 0.

By default, the cut-off function is enabled.