Level Measurement - Vega VEGADIF 65 Operating Instructions Manual

Instructions
VEGADIF 65 • Foundation Fieldbus
4
Carry out a position correction if the following conditions apply. If
the conditions are not fulfilled, then carry out the position
correction after step 6.
Conditions:
The process cannot be sealed off.
The pressure extraction points (A and B) are at the same geodesic
height.
5
Put measurement loop into operation:
Close valve 3: Separate plus and minus side
Open valve 4: Connect minus side
Now:
Valves 1, 3, 5, 6 and 7 are closed
Valves 2 and 4 open
Valves A and B open (if available)
6
Carry out position correction, if flow can be blocked. In this case,
step 5 is deleted.
Then carry out adjustment, see chapter "Set parameters".

8.3 Level measurement

For level measurements, the VEGADIF 65 in all versions is used.
VEGADIF 65 with double chemical seal CSB is immediately ready for
operation.
The VEGADIF 65 without chemical seal or with single chemical seal
CSS is ready for operation after opening a blocking valve, in case one
is present.
Before you adjust VEGADIF 65 without chemical seal or with single
chemical seal, the effective pressure lines must be cleaned and the
instrument filled with the medium.
Valves 1, 3, 5: Configuration with 5 valves.
4)
4)
8 Setup
65