U2781A Datasheet, PDF (43/76 Pages) Keysight Technologies – USB Modular Products

Table 3. Measurement accuracy of the U2356A at 0 to 18 °C and 28 to 45 °C
Thermocouple measurement accuracy (U2356A @ 0 to 18 °C and 28 to 45 °C)
ITS-90 Temperature range (°C) Optimum measurement range (°C)
T/C type
Low
High
Low
High
Without
averaging
(± °C)
50 points
averaging
(± °C)
B
0
1820
1100
1820
6.1
3.1
400
1100
14.4
6.3
E
–270
1000
–150
1000
3.0
2.6
–200
–150
4.2
3.7
J
–210
1200
–150
1200
2.9
2.5
–210
–150
4.9
4.1
K
–270
1372
–100
1200
3.3
2.9
–200
–100
5.3
4.2
N
–270
1300
–100
1300
3.4
2.7
–200
–100
6.8
4.6
R
–50
1768
300
1760
6.2
3.7
–50
300
15.7
7.2
S
–50
1768
400
1760
6.4
4.0
–50
400
14.2
6.6
T
–270
400
–100
400
3.0
2.4
–200
–100
5.3
4.2
500 points
averaging
(± °C)
2.4
2.7
2.6
3.6
2.5
4.0
2.9
4.0
2.6
4.1
3.2
3.8
3.4
3.4
2.2
3.9
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