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© National Instruments Corporation 11 SCC-TC Series Thermocouple Input Modules User Guide
Measurement Accuracy
1
1
Total system measurement error for operating temperature within ±5 °C of calibration temperature. Includes
PCI/AT-MIO-16XE-50 one-year accuracy specification of 0.01% ±412 μV. SCC-TC01/02 accuracy specification of
0.08% ±5 μV, and reference junction measurement accuracy of 0.5 °C. Assumes averaging. Non-averaged, single-point
reading has an additional uncertainty (up to ±0.1 °C for J-type thermocouple).
Thermocouple
Type
Temperature
Range (°C)
Maximum
Inaccuracy (±°C)
Typical
Inaccuracy (±°C)
B 400 to 600
600 to 1,800
2.5
2
0.31
0.13
E –200 to –100
–100 to 600
600 to 1,000
2
1
1.5
1.76
1
0.6
J –200 to –100
–100 to 500
500 to 1,100
2
1
1.5
1.6
0.9
0.72
K –200 to –100
–100 to 600
600 to 1,200
2.5
1.25
2
1.25
0.67
0.45
N –200 to –100
–100 to 1,300
2.5
2
2
0.7
R –50 to 0
0 to 100
100 to1,600
3
2
1.75
1.24
0.82
0.4
S –50 to 0
0 to 1,400
1,400 to 1,600
3
2
2.5
1.3
1
1
T –200 to –100
–100 to 400
2.5
1
2
0.9