VEGA VEGAFLEX 83 Foundation Fieldbus PFA insulated User Manual

Page 38

6 Set up with the display and adjustment module

VEGAFLEX 83 • Foundation Fieldbus

44227-EN-130910

The instrument carries out an automatic false signal suppression

as soon as the probe is uncovered. The false signal suppression is

always updated.
The menu item "Delete" is used to completely delete an already cre-

ated false signal suppression. This is useful if the saved false signal

suppression no longer matches the metrological conditions in the

vessel.

To damp process-dependent measured value fluctuations, set an

integration time of 0 … 999 s in this menu item.
If you have selected interface measurement under the menu item

"Application", you can adjust the damping for the level and the inter-

face separately.

The default setting is a damping of 0 s.

A linearization is necessary for all vessels in which the vessel volume

does not increase linearly with the level - e.g. a horizontal cylindri-

cal or spherical tank, when the indication or output of the volume is

required. Corresponding linearization curves are preprogrammed

for these vessels. They represent the correlation between the level

percentage and vessel volume.
The linearization applies to the measured value indication and the

current output. By activating the appropriate curve, the volume per-

centage of the vessel is displayed correctly. If the volume should not

be displayed in percent but e.g. in l or kg, a scaling can be also set in

the menu item "Display".

Warning:

If a linearization curve is selected, the measuring signal is no longer

necessarily linear to the filling height. This must be considered by the

user especially when adjusting the switching point on the limit signal

transmitter.
In the following, you have to enter the values for your vessel, for

example the vessel height and the socket correction.
For non-linear vessel forms, enter the vessel height und the socket

correction.
For the vessel height, you have to enter the total height of the vessel.

Setup - Damping

Setup - Linearization