Level Measurement - Vega VEGADIF 65 Operating Instructions Manual

3 Product description
10
Flow measurement
+
p
Q ~ p
1
Q
1
Fig. 3: Flow measurement with VEGADIF 65 and DP flow element, Q = flow, Δp
= differential pressure, Δp = p
1 Orifice
2 Pitot tube

Level measurement

1
Fig. 4: Level measurement with VEGADIF 65. Δp = differential pressure, ρ =
density of the medium, g = acceleration of gravity
1 Basic version with effective pressure lines
2 Version with flange chemical seal
3 Version with capillaries and cell chemical seals
–
p
p Q ~
2
Q
- p
1 2
–
+
2
+
–
p p
1 2
2
–
p
h =
ρ g
+
3
VEGADIF 65 • 4 ... 20 mA