MU-Thermocouple1 CAN FD – User Manual
17
4.4
Example for Determining the Total
Accuracy
The following data is assumed for the example:
Thermocouple type
= J, class 1
Ambient temperature
= 40 °C
Measured temperature = 100 °C
Measurement Errors due to Measurement Electronics
The measurement error due to measurement electronics is
1 K or 0.2 % of the measured value.
Temperature difference = 100 °C – 40 °C
= 60 K
Measurement error
= 60 K x 0.2 %
=
0.12 K
The larger measurement error applies. In this case, the resulting
measurement error is
1 K
.
Measurement Errors due to Reference Temperature
Sensors
A maximum measurement error of
1 K
results from the ambient
temperature of 40 °C.
Measurement Errors due to Thermocouples
The measurement error for a thermocouple type J class 1 is
1.5 K
or
0.4 %
.
Measurement error
= 100 °C x 0.4 %
=
0.4 K
