Product Code : 04
Thermocouple Extension / Compensating Cable
These cables can also be termed as instrumentation cables, since they are used for process temperature measurement. The construction is similar to paired instrumentation cable but the conductor material is different. Thermocouples are used in processes to sense temperature and is connected to the pyrometers for indication and control.
The thermocouple and pyrometers are electrically conducted by thermocouple extension/compensating cables. The conductors used for these cables are required to have similar thermo-electric (emf) properties as that of the thermocouple used for sensing the temperature. The cables are manu-factured as per IS:8784, ANSI-MC 96. 1, B.S., ENI, DIN and customers specification.
Range of Thermocouple Extension/Compensation Cables
EXTENSION CABLES
CONDUCTOR MATERIAL
Positive
Negative
KX(NiCr/Nia)
Chromel
Iron
Copper
Alumel
Constantan
JX(Fe/CuNi)
EX(NiCr/CuNi)
TX(Cu/CuNi)
COMPENSATING CABLES
KX (A)/VX (NiCr/NiAI)
SX/RX (PtRh-Pt)
COLOUR CODES as per various standard specifications
STANDARDS REFERRED
ANSI MC-96.1
ENI-163.00
IS : 8784
B.S.
+ve
-ve
overall
KX
Yellow
Red
Green
Brown
Blue
JX
White
Black
TX
EX
Purple
Violet
COMPESATING CABLES
KX(A)VX
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SX/RX