Tempsens offers special Reference thermocouples for high temperatures upto
1500°C for highly accurate temperature measurement. These Thermocouples
are offered in platinum / Rhodium (type R, S or B) elements with a high purity
Alumina insulations and sheath materials.
Thermocouples employing platinum in combination with platinum-rhodium
alloys have been found to be the most reproducible of all the various types.
They are resistant to oxidation in air and, because of their high melting points,
can be used at very high temperatures. The best-known member of this group is
the Type S (Pt10Rh/Pt) or Type R (Pt13Rh/Pt). It was long considered more
accurate and has probably been studied more than any other thermocouple.
The performance of Type R or Type S thermocouple depends strongly on the
annealing process, materials used, and other construction techniques.
