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4 Mounting
VEGABAR 86 • Secondary Device for electronic differential pressure
48048-EN-220817
1
2
h
Fig. 13: Measurement setup for density-compensated level measurement, h =
distance between the two measuring points
1 VEGABAR 86
2 VEGABAR 86 - Secondary Device
The length distance h of the two sensors should be at least 10 %,
better 20 %, of the final value of the sensor measuring range. A bigger
difference increases the accuracy of the density compensation.
The density-compensated level measurement starts with the stored
density 1 kg/dm
3
. As soon as both sensors are covered, this value will
be replaced by the calculated distance.
The density-compensated level measurement is only possible in
open, i.e. unpressurized vessels.