489 Sullivan Avenue,
South Windsor, CT 06074
Phone: 800-878-1551
or 860-289-1551
Fax: 860-289-3526

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Thermocouples

Thermocouple Applications

   

 
ANSI
Type		 Wire Alloys Temperature
Range F		 Limits of Error
Standard Special
J   Iron (+) vs Constantan (-)   32 to 1382 +/-0.75% +/-0.4%
K   Chromel (+) vs. Alumel (-)   32 to 2282 +/-0.75% +/-0.4%
T   Copper (+) vs. Constantan (-)   32 to 662 +/-0.75% +/-0.4%
E   Chromel (+) vs. Constantan (-)   32 to 1652 +/-0.5% +/-0.4%
R   Platinum (-) vs. Pt. 13% Rhodium (+)   32 to 2642 +/-0.25% +/-0.1%
S   Platinum (-) vs. Pt. 10% Rhodium (+)   32 to 2642 +/-0.25% +/-0.1%
B   Pt. 6% Rhodium (-) vs. Pt. 30% Rh (+)   1598 to 3092 +/-0.5%     ---
N   Nicrosil (+) vs. Nisil (-)   32 to 2282 +/-0.75% +/-0.4%


 

Type J (Iron vs. Constantan)
Can be used protected or unprotected. Reducing atmosphere recommended. Iron wire oxidizes rapidly above 1000 F.

Type K (Chromel-Alumel*)
Recommended for ixidizing atmospheres. Should be used in suitable protection tube when in a reducing or sulfurous atmosphere.

Type T (Copper-Constantan)
Useable in oxidizing, reducing or inert atmospheres.

Type E (Chromel*-Constantan)
Oxidizing atmospheres recommended. Highest EMF of common base metal thermocouples.

 Type R (Platinum vs. Platinum 13% Rhodium)
Oxidizning atmosphere recommended. Should be protected with ceramic protection tube. Higher EMF output than Type S.

Type S (Platinum vs. Platinum 10% Rhodium)
Same general conditions as Type R

Type B (Platinum 6% Rodium vs. Platinum 13% Rhodium)
Same general conditions as Type R adn S. EMF output is lower than Type R and S.

Type N (Nicrosil vs. Nisil)
For general use, better resistance to oxidation and sulfur than Type K.

Although some of the thermocouples listed above can be used at higher temperatures than those shown, these are generally considered to be maximum reliable operating temperatures.

*Tradename - Hoskins Mfg. Co.

 

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Industronics Service Company is one of the leading suppliers of Thermocouples and RTD's in North America.

Our reputation has been built on high quality, fast delivery , and reliability.

          

 

Call us for information concerning your heating and furnace needs at t

1-800-878-1551

 
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