Tenn Tech Automation Controls Inc.

Thermocouple Types / Ranges*

Tips: Assure you are using the proper wire for the type of thermocouple you are using.

Type ---Make-up Approx Range -US Color Code

B

Platinum/Rhodium (+) Platinum around 30 %

Platinum/ Rhodium (-) usually around 5%

2500 -3100F 1370-1700C
+ Gray
- Red

C

Tungsten /Rhenium (+) tungsten around 5%

Tungsten /Rhenium (-) tungsten around 25%

3000-4200F 1650-2315C
+ Varies
-Red

E

Chromel (+)

Constantan (-)

200-1650F 95-900C

+ Black
- Red

J

Iron (+)

Constantan (-)

200-1400F 95-760C

+ White
- Red

K

Chromel (+)

Alumel (-)

200-2300F 95-1260C
+ Yellow
-Red

N

Nicrosil (+)

Nisil (-)

1200-2300F 650-1260C
+ usually black
- Red

R

Platinum/Rhodium (+)

Platinum (-)

1600-2640F 870-1450C
+ Black
- Red

S

Platinum 10% Rhodium (+)

Platinum (-)

1800-2640F 980-1450C
+ Black
- Red

T

Copper (+)

Constantan (-)

-330-660F -200-350C
+ Blue
-Red

*Tenn Tech Automation Controls bears no responsibilities associated with the use of the information on this page. Information is believed to be correct but is not warranted.

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