VEGA VEGADIF 65 Foundation Fieldbus - Manual (Page 10)

10
3 Product description
VEGADIF 65 • Foundation Fieldbus
36130-EN-130417
Differential pressure measurement
+
2
1
Fig. 5: Differential pressure measurement with VEGADIF 65
1 Filter
2 VEGADIF 65
Density measurement
= ∆p
h g
+
–
h
1
Fig. 6: Density measurement with VEGADIF 65, h = defined mounting distance,
Δp = differential pressure, ρ = density of the medium, g = acceleration of gravity
1 VEGADIF 65
Interface measurement
1
+
–
h
2
3
Fig. 7: Interface measurement with VEGADIF 65
1 VEGADIF 65
2 Liquid with higher density
3 Liquid with lower density