Owner manual

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 curveUser programmable curve
User programmable curveUser programmable curve
User programmable curve " and
then "
EditEdit
EditEdit
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-
mentment
mentment
ment ", then to "
ConditioningConditioning
ConditioningConditioning
Conditioning " and finally to
"
LinearisationLinearisation
LinearisationLinearisation
Linearisation ".
Again choose the menu " Offset correction "
and you see the corrected zero value.