VEGA Capacitive electrodes EL Profibus PA - Manual (Page 33)

Capacitive electrodes EL - Profibus PA 33
Setup
Key Display
Adjust-
ment
Para-
meter
adjust-
ment
Sensor
m(d)
4.700
OK
OK
with
medium
Min.
adjust
at %
-------
(Min. adjustment)
OK
OK
3. Conditioning
Under the menu item " Signal conditioning" you
can scale the display, set an integration time
and choose a linearisation curve.
Scaling
Here, you can scale the digital display of the
electrode.
0 % correspond
Here, you enter the value which should be
displayed when 0 % level is reached, e.g.
20 l.
100 % correspond
Here, you enter the value which should be
displayed when 100 % level is reached, e.g.
1200 l.
If you need for the max. possible value a
number with more than four digits, then you
should choose the next higher unit, e.g.
14000 l = 140 hl.
Decimal point
If necessary, set the position of the decimal
point. Keep in mind that max. 4 digits can be
displayed.
Unit
In the menu " Unit", you choose the physical
unit (%, t, ft 3 , in 3 , gal, in, lb, pF, m, cm, mm, ft,
yd, m 3 , kg, l, hl).
Linearisation curve
In the menu " Lin. curve", you can choose
between three standard linearisation curves.
Preadjusted is a linear depedency between
percentage value of the level and the per-
centage value of the filling volume.
You can choose between linear, cylindrical
tank, spherical tank and user-programmable
linearisation curve. Programming your own
linearisation curve is only possible with the
PC and the adjustment program VVO. A
user-programmable curve, however, can be
transferred from the PC to the electronics of
the instrument and called up under this menu
item.
Integration time
In the menu item " Integration time", you can
set a delay (in seconds) for the signal output.
4. Outputs
Under the menu " Outputs", you can scale the
display and determine which parameter
should be outputted by the sensor display
and the PA output.