Type R Thermocouple
(Platinum Rhodium -13% / Platinum): The Type R is used in very high temperature applications. It has a higher percentage of Rhodium than the Type S, which makes it more expensive. The Type R is very similar to the Type S in terms of performance. It is sometimes used in lower temperature applications because of its high accuracy and stability. Type R has a slightly higher output and improved stability over the type S. Accuracy (whichever is greater):
- Standard: +/- 1.5C or +/- .25%
- Special Limits of Error: +/- 0.6C or 0.1%
Technical Details:
Type: R
Protection TUBES: Ceramic RECRYSTALISED, 310 SS, Inconel, Silicon carbide, etc.
ELEMENTS: Simplex / Duplex / Multipoints
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Type S Thermocouple
Type S Thermocouple (Platinum Rhodium - 10% / Platinum): The Type S is used in very high temperature applications. It is commonly found in the BioTech and Pharmaceutical industries. It is sometimes used in lower temperature applications because of its high accuracy and stability. The type S is often used with a ceramic protection tube.
Accuracy (whichever is greater):
- Standard: +/- 1.5C or +/- .25%
- Special Limits of Error: +/- 0.6C or 0.1%
Technical Details:
Type: S
Protection TUBES: Ceramic RECRYSTALISED, 310 SS, Inconel, Silicon carbide, etc.
ELEMENTS: Simplex / Duplex / Multipoints
Type B Thermocouple
(Platinum Rhodium 30% / Platinum Rhodium 6%): The Type B thermocouple is used in extremely high temperature applications. It has the highest temperature limit of all of the thermocouples listed above. It maintains a high level of accuracy and stability at very high temperatures. The type B has a lower output than the other noble metals (type R & type S) at temperatures below 1,112F (600C).
Accuracy (whichever is greater):
- Standard: +/- 0.5%
- Special Limits of Error: +/- 0.25%
Technical Details:
Type: B
Protection TUBES: Ceramic RECRYSTALISED, 310 SS, Inconel, Silicon carbide, etc.
ELEMENTS: Simplex / Duplex / Multipoints
Type C Thermocouple
![Type C Thermocouple]()
(Tungsten 5% Rhenium / Tungsten 26% Rhenium): The Type C thermocouple Tungsten rhenium alloy combinations offer highly reliable linear EMF FOR HIGH TEMPERATURE MEASURMENTS UPTO 2500 DEGREE CENTIGRADE. It also offers good stability at high temperatures in hydrogen inert gasatmospheres. They are not practicable for use below 400 c. Not recommended for use in oxidation conditions.
Accuracy (whichever is greater):
- Standard: +/- 1%.
- Special Limits of Error: +/- 4.5 C
Technical Details:
Type: C
Protection TUBES: Ceramic RECRYSTALISED, 310 SS, Inconel, Silicon carbide, etc.
ELEMENTS: Simplex / Duplex / Multipoints