Ecolab Versatronic Manuel D'utilisation page 494

PC setup program
View graphic
By tapping the button "Show graph" the linearisation characteristic curve is displayed.
The display range of the measurement axis can be determined by the entry of "lower limit"
and "upper limit", followed by pressing the "Update" button.
Fig. 128: Customer-specific linearisation
Settings of customer-specific linearisation 1 to 8
setting point
Name
Linearisation type
Start of range
End of range
supporting values
Formula
417102269 Rev. 2-08.2020
Selection / option
Up to 15 characters of text
Supporting values formula
-99999 to 99999
Table with discrete value
pairs
Coefficients of a polynomial
of degree 4
222
Explanation
Linearisation name
Type of input of linearisation data
The customer-specific linearisation can be entered
as a table of values with discrete value pairs or as
a formula (4th order polynomial) to represent a
measured characteristic.
Only with "formula" as "linearisation type":
Limits of the value range of the Y-column
The sensor signal values (X) values are converted
by the formula to measured values (Y-values). In
the analogue inputs of 'Versatronic' the Y values
are considered as input readings.
only "basic value" as "kind of linearisation":
Enter discrete pairs of values of a measuring line
In the table of values, the sensor signal values are
registered in the X column and the associated
measured values in the Y column. The intervals
between two pairs of values are calculated
internally by linear interpolation. In the analogue
inputs of 'Versatronic' the Y values are
considered as input readings.
Only with "formula" as "linearisation type":
Approximation formula to produce a measurement
curve
The formula is entered as a polynomial of the 4th
degree, and is used to convert the sensor signal
values (X-values) in the respective measured
values (Y-values). In the analogue inputs of
'Versatronic' the Y values are considered as input
readings.
With the "Generate formula" button, an
approximation formula can be created based on
the entered reference values.