Thermocouple RRYH Thermocouple RRYH

Thermo Sensor

A thermocouple is a sensor for measuring temperature. It consists of two dissimilar metals joined together at one end. There are many types of thermocouples, type J, K, T, & E are the most common types (Base Metal), and type R, S, and B thermocouples are used in high temperature applications (Nobal Metal).

Thermocouple Types and Temperature Range

Type

Wire Material

Temp. Range

Accuracy

+

-

K

Nickel-Chromium

Nickel-Alumel

-200~1000°C

+/- 2.2°C or +/- .75%

J

Iron

Constantan

0~600°C

+/- 2.2°C or +/- .75%

T

Copper

Constantan

-200~300°C

+/- 1.0°C or +/- .75%

E

Nickel-Chromium

Constantan

-200~700°C

+/- 1.7°C or +/- 0.5%

N

Nicrosil

Nisil

-200~1200°C

+/- 2.2°C or +/- .75%

R

Platinum Rhodium – 13%

Platinum

0~1400°C

+/- 1.5°C or +/- .25%

S

Platinum Rhodium – 10%

Platinum

0~1400°C

+/- 1.5°C or +/- .25%

B

Platinum Rhodium – 30%

Platinum Rhodium – 6%

0~1500°C

+/- 0.5%

What is thermocouple extension wire?


Thermocouple extension wire is used to extend from the thermocouple probe to the control system or digital display especially when long distance involved. It is less expensive and lower grade than thermocouple wire.


Thermocouple 

Type

Extension Wire 

Type

Wire Material

 Temp. Rang

(℃)

Tolerance (µV)
+- Class 1  Class 2 
KKX Nickel-chrome  Nickel-silicon -25~200±60±100
KCANickel-chromeNickel-silicon0~150-±100
KCBIronCopper-nickel0~150±100
KCCCopperCopper-nickel0~100±100
EEXNickel-chromeCopper-nickel-25~200±120±200
JJXIronCopper-nickel-25~200±85±140
TTXCopperCopper-nickel-25~100±30±60
NNXNickel-chromeNickel-silicon-25~200±60±100
NCCopper-nickelCopper-nickel0~150±100
RRCACopperCopper-nickel0~100±30
RCBCopperCopper-nickel0~200±60
BBCCopperCopper0~100
SSCACopperCopper-nickel0~100±30
SCBCopperCopper-nickel0~200±60




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