VEGA VEGAFLEX 83 Modbus and Levelmaster protocol PFA insulated User Manual

Page 34

Advertising
background image

34

6 Set up with the display and adjustment module

VEGAFLEX 83 • Modbus and Levelmaster protocol

41838-EN-130314

Enter the respective distance value in m for the empty vessel cor-

responding to the percentage value.

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".

Caution:

Note the following, if the respective sensor is used as part of an over-

fill protection system according to WHG:
If a linearization curve is selected, the measuring signal is no longer

linearly proportional to the level. This must be taken into consideration

by the user, particularly when setting the switching point on the limit

signal indicator.

Since the scaling is very comprehensive, the scaling of the level value

was divided into two menu items.

Setup - Damping

Setup - Linearization

Setup - Scaling Level

Advertising