VEGA D81 METEC Hydrostatic pressure transmitter User Manual
Page 37

Pressure transmitter D81 METEC
®
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 level in % or pressure in %
(percentage value) and volume (linearised).
• Choose "
User programmable curve
User programmable curve
User programmable curve
User programmable curve
User programmable curve" and
then "
Edit
Edit
Edit
Edit
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 ad-
justment/Conditioning/Linearisation" you allo-
cate 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-
Instrument data/Parameter adjust-
Instrument data/Parameter adjust-
Instrument data/Parameter adjust-
Instrument data/Parameter adjust-
ment
ment
ment
ment
ment", then to "Conditioning
Conditioning
Conditioning
Conditioning
Conditioning" and finally to
"
Linearisation
Linearisation
Linearisation
Linearisation
Linearisation".
Again choose the menu "
Offset correction"
and you see the corrected zero value.