Appendices

Specifications A

Temperature Measurements (Thermocouples)

Accuracy

See Table A-5.

Table A-5. Temperature Measurements - Accuracy (Thermocouples) (IPTS-68)

Thermocouple

 

 

Accuracy (±°C)*

 

 

 

18°C to 28°C

 

 

Type

Temperature

90 Days

1 Year

 

1 Year

 

(C°)

Slow

Slow

 

Fast

0°C TO 60°C

1 Year

1 Year

Slow

Fast

 

-100 to -30

0.42

J

-30 to 150

0.37

 

150 to 760

 

 

 

 

0.44

 

-100 to -25

0.51

K

-25 to 120

 

0.43

 

120 to 1000

0.81

 

1000 to 1372

 

1.05

 

-100 to -25

0.61

N

-25 to 120

0.53

 

120 to 410

 

 

0.50

 

410 to 1300

 

 

 

1.00

 

-100 to -25

0.43

E

-25 to 350

0.38

 

350 to 650

0.41

 

650 to 1000

 

0.67

 

-150 to 0

0.69

T

0 to 120

 

0.45

 

120 to 400

 

 

 

0.41

 

250 to 400

0.89

R

400 to 1000

0.93

 

1000 to 1767

 

1.39

 

250 to 1000

1.02

S

1000 to 1400

1.23

 

1400 to 1767

 

 

1.56

 

600 to 1200

1.22

B

1200 to 1550

1.18

 

1550 to 1820

 

1.42

 

0 to 150

0.73

 

150 to 650

0.70

C

650 to 1000

 

0.90

 

1000 to 1800

 

 

1.74

 

1800 to 2316

 

2.81

*Sensor inaccuracies are not included

0.43

0.38

0.48

0.52

0.44

0.87

1.15

0.62

0.54

0.52

1.08

0.44

0.41

0.45

0.73

0.71

0.46

0.43

0.91

0.98

1.48

1.07

1.29

1.65

1.23

1.23

1.48

0.75

0.74

0.96

1.86

3.03

0.90

0.80

0.93

1.12

0.94

1.57

2.03

1.42

1.21

1.11

1.82

0.89

0.77

0.84

1.22

1.51

0.95

0.82

2.53

2.35

2.98

2.69

2.75

3.38

3.64

2.61

2.95

1.92

1.66

2.01

3.48

5.56

0.541.08

0.571.01

0.881.37

0.641.30

0.621.15

1.472.22

2.012.95

0.731.60

0.681.39

0.741.31

1.752.53

0.561.08

0.641.02

0.821.24

1.281.81

0.831.72

0.591.13

0.661.06

1.072.71

1.372.67

2.263.78

1.492.96

1.873.34

2.484.24

1.383.81

1.643.03

2.023.49

0.872.10

1.092.04

1.492.58

3.004.66

5.007.60

A-5

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Fluke 2635A user manual Temperature Measurements Thermocouples, Type Temperature Days Year Slow Fast 0C to 60C

2635A specifications

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