Vega VEGADIF 65 Operating Instructions Manual page 25

In closed vessels with
single chemical seal
In closed vessels with
double chemical seal
In closed vessels with
steam layering with effec-
tive pressure line
VEGADIF 65 • 4 ... 20 mA
1. Mount VEGADIF 65 directly to the vessel
2. Connect minus side always above the max. level
3. For measurements in products with solid content such as e.g.
dirty liquids, the installation of separators and drain valves is
recommended to enable collection and removal of debris and
sediment.
max.
min.
Fig. 23: Measurement setup, level measurement in closed vessel
1 Blocking valve
2 Separator
3 Drain valve
4 VEGADIF 65
1. Mount VEGADIF 65 below the lower chemical seal
2. The ambient temperature should be the same for both capillaries
Information:
Level measurement is only ensured between the upper edge of the
lower and the lower edge of the upper chemical seal.
Fig. 24: Measurement setup, level measurement in closed vessel
1 VEGADIF 65
1. Mount VEGADIF 65 below the lower measurement connection so
that the effective pressure lines are always filled with liquid
2. Connect minus side always above the max. level
3. The condensate vessel ensures a constant pressure on the
minus side
1
–
+
–
max.
+
min.
4 Mounting
2
3
4
1
25