JUMO AQUIS touch P 202580, Operating Manual

Page: 268 / 322

19 PC Setup Program
268
Settings for customer-specific linearizations 1 to 8
Setting item Selection/
setting option Explanation
Description up to 15 text characters Linearization name
Linearization type Basic values
Formula Way of entering linearization data
In order to display a measurement characteristic
curve, the customer-specific linearization can be
entered as a value table with discrete value pairs
or as a formula
(fourth-degree polynomial).
Start measur. range -99999 to +99999 only with "Formula" as "Linearization type":
Value range limits for the Y-column
The signal values from the sensor (X-values) are
converted by the formula to values of the process
variable (Y-values). The Y-values function as
measuring values for input at the analog inputs of
the AQUIS touch P.
End measur. range
Basic values Table with discrete value
pairs only for "Supporting values" as "Lineariza-
tion type":
Entry of discrete value pairs of a measurement
characteristic curve
The signal values from the sensor can be en-
tered in the X-column of the values table and the
associated values of the process variable in the
Y-column. The intervals between two value pairs
are calculated internally by linear interpolation.
The Y-values function as measuring values for
input at the analog inputs of the AQUIS touch P.
Formula Coefficients of a
4th degree polynomial only with "Formula" as "Linearization type":
Approximation formula for displaying a measure-
ment characteristic curve
Formula are entered as a fourth-degree polyno-
mial and used to convert the signal values from
the sensor (X-values) into the corresponding val-
ues of the process variable (Y values). The Y-val-
ues function as measuring values for input at the
analog inputs of the AQUIS touch P.
The "Generate formula" button can be used to
generate an approximation formula on the basis
of the Basic values entered in the table.