Siemens SITRANS T Series - Calibration Examples; Accuracy Calculation Examples

Calibration examples
C
C.1 Accuracy calculation examples
Description
The ambient temperature calibrated at the factory is accepted for the sample accuracy
calculations. Other potential sources of errors to be taken into consideration, such as power
supply e󹪜ects, 󹪞uctuations of ambient temperature, etc. were not taken into account.
Example: Sensor Pt100, con󹪝gured from –200 °C to +850 °C
Pt100
Basic accuracy
= 0.04 °C
Output
Analog accuracy
= 0.0016 mA
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Example: Thermocouple type K, internal CJC, measured value at 400 °C, con󹪝gured from
0 °C to 400 °C
Thermocouple type K
Basic accuracy
= 0.25 °C
Output
Analog accuracy
= 0.0016 mA
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Example: Thermocouple type K, external CJC Pt1000, measured value at 400 °C,
con󹪝gured from 0 °C to 400 °C
Thermocouple type K
Basic accuracy
= 0.25 °C
SITRANS TH100/TH320/TH420/TR320/TR420/TF320/TF420 with 4 to 20 mA/HART
Operating Instructions, 05/2020, A5E41864807-AB 225