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Users Manual
34
Table 5. Thermocouple Types Accepted
TYPE POSITIVE LEAD
POSITIVE LEAD
(H) COLOR NEGATIVE LEAD SPECIFIED RANGE
MATERIAL
ANSI* IEC**
MATERIAL (°C)
E Chromel Purple Violet Constantan -250 to 1000
N Ni-Cr-Si Orange Ni-Si-Mg -270 to 1300
J Iron White Black Constantan -210 to 1200
K Chromel Yellow Green Alumel -270 to 1372
T Copper Blue Brown Constantan -250 to 400
B Platinum (30% Rhodium) Gray Platinum (6% Rhodium) 600 to 1820
R Platinum (13% Rhodium) Black Orange Platinum -20 to 1767
S Platinum (10% Rhodium) Black Orange Platinum -20 to 1767
C *** Tungsten (5% Rhenium) White Tungsten (26% Rhenium) 0 to 2316
L (DIN J) Iron Constantan -200 to 900
U (DIN T) Copper Constantan -200 to 600
*American National Standards Institute (ANSI) device negative lead (L) is always red.
**International Electrotechnical Commission (IEC) device negative lead (L) is always white.
*** Not an ANSI designation but a Hoskins Engineering Company designation.