Density And Interface Measurement; Differential Pressure Measurement - Vega VEGADIF 65 Operating Instructions Manual

Instructions
Measurement setup for
gases
VEGADIF 65 • Foundation Fieldbus
Now:
Valve 3, 6 and 7 are closed
Valves 2, 4, A and B are open.
Then carry out adjustment, see chapter "Set parameters".

8.4 Density and interface measurement

For density and interface measurements, VEGADIF 65 with double
chemical seal CSB is used.
VEGADIF 65 in this version is immediately ready for operation.
8.5 Differential pressure measurement
For differential pressure measurements, VEGADIF 65 without chem-
ical seal or with double chemical seal CSB is used.
VEGADIF 65 with double chemical seal CSB is immediately ready for
operation.
Before adjusting VEGADIF 65 without chemical seal, the effective
pressure lines must be cleaned and the instrument filled with medium.
Fig. 50: Preferred measurment setup for gases
VEGADIF 65
I
II Three-fold valve block
2, 4 Inlet valves
3
Breather valve
6, 7 Vent valves on VEGADIF 65
A, BBlocking valves
6 7
I
+
–
3
II
2 4
+
A B
8 Setup
69