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Standard Thermocouple Alloy Conductor Combinations :

Code Conductor Combination Recommended Operating Temperature Range for Conductor Combinations*
Continuous C               Short Term C
K
Nickel Chromium vs Nickel Aluminium
 0 to +1100 -180 to +1350
T
Copper vs Constantan
 -185 to +300 -250 to +400
J
Iron vs Constantan
 +20 to +700 -180 to +750
E
Nickel Chromium vs Constantan
 0 to +800 --
N
Nickel-Chromium-Silicon vs Nickel-Silicon-Magnesium
 0 to =1100 0 to +1300
R
Platinum - 13% Rhodium vs Platinum
 0 to 1600 -50 to +1700
S
Platium - 10% Rhodium vs Platinum
 0 to +1550 -50 to +1820
B
Plantinum - 30% Rhodium vs Platinum - 6% Rhodium
 +100 to +1600 +50 to +1820


* These figures should be read in conjunction with maximum operating temperature figures for metal sheath materials.
Unless otherwise requested thermocouple units are supplied with nominal EMF / Temperature characteristics meeting the current international thermocouple reference tables.
Tolerances on the thermocouple units supplied are to IEC 584.2:1982 Class 2 (Bs4937 Part 20:1983 Class 2). Assemblies to class 1 are available on request.
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