Level Measurement - Vega VEGADIF 65 Operating Instructions Manual

8 Set up
Instructions
62
Carry out a position correction if the following conditions apply. If
4
the conditions are not fulfilled, then carry out the position
correction after step 6.
Conditions:
The process cannot be blocked.
The pressure extraction positions (A and B) are at the same
geodesic height.
Put measurement loop into operation:
5
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)
Carry out position correction, if flow can be blocked. In this case,
6
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 bilateral isolating diaphragm CSB is immediately
ready for operation.
The VEGADIF 65 without isolating diaphragm or with unilaterial
isolating diaphragm CSS is ready for operation after opening a
possibly available block valve.
Before you adjust VEGADIF 65 without isolating diaphragm or with
unilateral isolating diaphragm, the effective pressure lines must be
cleaned and the instrument filled with the medium.
Valves 1, 3, 5: Configuration with 5 valves.
3)
3)
VEGADIF 65 • 4 ... 20 mA/HART