40
WIKA operating instructions digital indicator, model DI35-D
EN
7. Description of program numbers
140553539.03 03/2020 EN/DE
7.9 Linearising sensors
Non-linear sensors can be linearised with up to 30 interpolation points per measuring
input.
At each interpolation point, the input signal is assigned a new display value manually.
The analogue output is also linearised since it is proportional to the display values.
Each interpolation point must have a higher input signal than the previous. The corre-
sponding display values can be freely assigned.
PN
Function
Parameter
100
Number of interpolation points, measuring input 1
0 ... 30
101 ... 130 Display value for interpolation point, measuring input 1
-9999 ... 99999
140
Number of interpolation points, measuring input 2
0 ... 30
141 ... 170 Display value for interpolation point, measuring input 2
-9999 ... 99999
Procedure
1. Set the number of interpolation points under PN 100/PN 140.
2. Apply the input signal for the first interpolation point, PN 101/PN 141, at the
measuring input.
3. Set the desired display value under PN 101/PN 141.
⇒
Input signal is associated with display value.
4. Repeat steps 2 + 3 for all interpolation points.
⇒
Input signal is linearised.
