VEGA D85 Hydrostatic pressure transmitter - Manual (Page 37)

Pressure transmitter D85 37
You can choose four linearisation curves:
linear, horiz. cylindrical tank, spherical tank
and user programmable curve.
Under " User programmable curve" you can
enter your own linearisation curve as a corre-
lation between the level in % or pressure in %
(percentage value) and the volume
(linearised).
• Choose "
User programmable curve" and
then "
Edit".
First of all, a linear correlation is displayed
(the function is a straight line).
Setup
Note:
The menu item "
Real value correction" ena-
bles the correction of the actual pressure by
means of a reference value. This corrects the
measuring characteristics in a way similar to
the offset correction.
Conditioning/Linearisation
In the menu " Instrument data/Parameter
adjustment/Conditioning/Linearisation" you
allocated a filling quantity (volume) to the level
(filling height). The correlation between level
and volume is described with so called
linearisation curves.
• Click to "
Instrument data/Parameter adjust-
ment", then to "Conditioning" and finally to
"
Linearisation".
Again choose the menu " Offset correction"
and you see the corrected zero value.