Weidmuller PT 100/3 sig conditioners for current output - Manual (Page 6)

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2. Professionally install module.
3. Add 1 % of the temperature span to the selected "minimum"
temperature and set this value on a PT 100 simulator (when
using a precision resistance decade, where necessary ob-
serve DIN IEC 751 conversion table from °C to
Ω
!) and cali-
brate the signal conditioner output signal to 0.200 mA using
the null potentiometer. (The potentiometers are located be-
hind the hinged cover).
4. Set the "maximum" selected temperature on a PT 100 simu-
lator (or precision resistance decade) and calibrate the signal
output to 20.000 mA using the Span potentiometer.
5. Repeat steps 3 and 4 (approx. 2-3 times), until the required
accuracy is achieved.