VEGA Capacitive electrodes EL Profibus PA - Manual (Page 42)

42 Capacitive electrodes EL - Profibus PA
Setup
If you have chosen pF, you can assign a
corresponding value in Picofarad to the per-
centage value.
Example
0 % = 97.2 pF
100 % = 1428.0 pF
The values for the adjustment will be ac-
cepted by pushing the button
OK.
Conditioning
The following functions are available in this
window:
- Scaling
- Linearisation
- Integration time
Scaling
With this button, a message appears telling
you that for Profibus sensors, this function
can be found in the menu window "
Instrument
data parameter adjustment" under the menu
item "
Output". Carry out the scaling there.
Linearisation
In this window, you can linearise non-linear
vessels, such as e.g. a cylindrical tank. The
following linearisation curves are available:
- linear
- cylindrical tank
- spherical tank
- user-programmable curve
Click in the window "Instrument data param-
eter adjustment" to
Conditioning .
Click in the window "Conditioning" to
Linearisation .
With oscillator CAP E34 PA Ex you can also
enter your own linearisation curve for special
vessels, e.g. cylindrical vessel with large
funnel-shaped outlet, under "user-program-
mable curve".
Push the button Edit. You can enter the value
pairs (percentage value - volume value) for
32 index markers.