Weidmüller PT 100/4 Notice D'utilisation page 28

Example
Chosen measurement
range:
Set minimum temperature -50 °C + 2 K = -48 °C
on the PT 100 simulator and calibrate the signal conditioner
output signal to 0.200 mA using the null potentiometer.
Mean temperature
Set the 50 °C value on a PT 100 simulator
Then determine ΔI:
Then calibrate the output signal to (10.000 mA - ΔI) using the
span potentiometer i.e. here an example.
Then set the maximum temperature on the PT 100 simulator
(150 °C) and calibrate the output signal to 20.000 mA using the
lin potentiometer.
28
-50 ... +150 °C → 200 K span
1 % from 200 K span = 2 K
= (ϑ
max
= (150 °C + (-50 °C))/2
= 50 °C
ΔI = measured value from measuring
instrument - 10.000 mA
→ ΔI = 9.940 mA - 10.000 mA
= -0.060 mA
"10.000 mA - (-0.060 mA) = 10.060 mA"
+ ϑ )/2
min