Thermocouple Calibrator
Measure Temperature
17
Table 6. Thermocouple Types Accepted
Type
Positive Lead
Material
Specified Range
(°C)
Positive Lead (H)
Color
Negative Lead
Material
ANSI* IEC**
E Chromel -250 to 1000 Purple Violet Constantan
N Ni-Cr-Si -200 to 1300 Orange Pink Ni-Si-Mg
J Iron -210 to 1200 White Black Constantan
K Chromel -200 to 1372 Yellow Green Alumel
T Copper -250 to 400 Blue Brown Constantan
B Platinum - 30 % Rhodium 600 to 1820 Gray Platinum - 6 % Rhodium
R Platinum - 13 % Rhodium -20 to 1767 Black Orange Platinum
S Platinum - 10 % Rhodium -20 to 1767 Black Orange Platinum
C
Tungsten - 5% Rhenium 0 to 2316 White None Tungsten - 26 % Rhenium
L Iron -200 to 900 Constantan
U Copper -200 to 400 Constantan
BP 90.5 % Ni - 9.5 % Cr 0 to 2500
GOST
56 % Cu - 44 % Ni
Violet or Black
XK 95 % W - 5 % Re -200 to 800 Red or Pink 80 % W - 20 % Re
G Tungsten 100 to 2315 White Tungsten - 26 % Rhenium
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