Configure your
Thermocouple RTD Cable
Thermocouple Wire Tolerance
Thermocouple and Compensating Wire
X = Extension Grade
C = Compensating Grade
Color code and limits of error for thermocouple and compensating wire as per ANSI
MC 96.1 - 1975
|
Type
|
Conductor
|
Color Code
|
Temperature Range
|
Limits of error
|
|
Positive
|
Negative
|
Sheath
|
Positive
|
Negative
|
Standard
|
Special
|
|
TX
|
Copper
|
Constantan
|
Blue
|
Blue
|
Red
|
-60 to +100°C
|
± 1.0°C
|
± 0.5°C
|
|
JX
|
Iron
|
Constantan
|
Black
|
White
|
Red
|
0 to +200°C
|
± 2.2°C
|
± 1.1°C
|
|
EX
|
Chromel
|
Constantan
|
Purple
|
Purple
|
Red
|
0 to +200°C
|
± 1.7°C
|
--
|
|
KX
|
Chromel
|
Alumel
|
Yellow
|
Yellow
|
Red
|
0 to +200°C
|
± 2.2°C
|
--
|
|
WX*
|
Iron
|
Cu/Nickel
|
White
|
Green
|
Red
|
+24 to +200°C
|
± 3.33°C
|
--
|
|
VX**
|
Copper
|
Constantan
|
Red
|
Brown
|
Red
|
+24 to +200°C
|
± 3.33°C
|
--
|
|
SX
|
Copper
|
Cu/Ni alloy
|
Green
|
Black
|
Red
|
0 to +200°C
|
± .057mV
|
--
|
|
BX
|
Copper
|
Cu/Ni alloy
|
Grey
|
Grey
|
Red
|
0 to +50°C & +50...+200°C
|
3.7°C
|
--
|
Ÿ The compensating cable WX for K thermocouple included in previous ASA C 96.1 964
rules, has been excluded from ANSI MC 96.1 1975 rules.
Ÿ The compensating cable VX for K thermocouples included in previous ISA RP1, has
been excluded from up-to-date ASA and ANSI rules
Color code for thermocouple grade wires as per ANSI MC 96.1 - 1975
|
Type
|
Conductor
|
Color Code
|
Temperature Range
|
|
Positive
|
Negative
|
Jacket
|
Positive
|
Negative
|
|
T
|
Copper
|
Constantan
|
White
|
Blue
|
Red
|
(-)200 to 0°C & 0 to (+)370°C
|
|
J
|
Iron
|
Constantan
|
Black
|
White
|
Red
|
0...+760°C
|
|
E
|
Chromel
|
Constantan
|
Purple
|
Purple
|
Red
|
(-)200 to 0°C & 0 to (+)870°C
|
|
K
|
Chromel
|
Alumel
|
Yellow
|
Yellow
|
Red
|
0 to (+)1260°C
|