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

8 Set up
Instructions
Installation for gases
66
Open valve 4: Connect minus side
Now:
Valve 3, 6 and 7 are closed
Valve 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 bilateral
isolating diaphragm 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 isolating
diaphragm or with bilateral isolating diaphragm CSB is used.
VEGADIF 65 with bilateral isolating diaphragm CSB is immediately
ready for operation.
Before adjusting VEGADIF 65 without isolating diaphragm, the
effective pressure lines must be cleaned and the instrument filled with
medium.
Fig. 49: Preferred installation 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, B Block valves
6
7
I
+ –
3
II
2 4
+
A B
VEGADIF 65 • 4 ... 20 mA/HART