RTD Colour Coding

Tolerances for Pt100 Resistance Thermometers

Temperature

ºC

BS EN 60751

Class A

Class B

±ºC

±W

±ºC

±W

-200

0.55

0.24

1.3

0.56

-100

0.35

0.14

0.8

0.32

0

0.15

0.06

0.3

0.12

100

0.35

0.13

0.8

0.30

200

0.55

0.20

1.3

0.48

300

0.75

0.27

1.8

0.64

400

0.95

0.33

2.3

0.79

500

1.15

0.38

2.8

0.93

600

1.35

0.43

3.3

1.06

650

1.45

0.46

3.6

1.13

700

-

-

3.8

1.17

800

-

-

4.3

1.28

850

-

-

4.6

1.34

 

Rtd tolerances graph

Temperature-Resistance Comparisons

RTD Circuit Colour Coding

RTD Circuit Colour Coding

Simplex RTD Circuit & colour code

To BS EN 60751 : 1996 Simplex RTD

Simplex RTD loop circuit & colour code

To BS EN 60751 : 1996 4 Wire Loop

'UTLs' Duplex RTD circuits & colour code

'UNIVERSAL's Colour Coding for the Duplex RTD