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The common beneficiary features of the thermocouple cables or thermocouple wires are detailed as follows:
The below given chart will help you understand different thermocouple wires and their properties better. This information will be of great help in your selection process.
Thermocouple Wire Specifications | |||||||
T/C Type | Single color | Ansi Color Coding Overall Extension | Overall thermocouple | Conductor Alloys | Temperature Range °F (°C) Thermocouple Grade Extension Grade | Tolerance(standard) / whichever is Greater | Tolerance(Special) / whichever is Greater |
E | Purple Red | Purple | Brown | EP/EN Chromel/Constantan | -328 to 1652 (-200 to 900) 32 to 392 (0 to 200) | +-1.7 °C or +-0.5% | +-1.0 °C or +-0.4% |
J | White Red | Black | Brown | JP/JN Iron/Constantan | 32 to 1382 (0 to 750) 32 to 392 (0 to 200) | +-2.2 °C or +-0.75% | +-1.1 °C or +-0.4% |
K | Yellow Red | Yellow | Brown | KP/KN Chromel/Alumel | -328 to 2282 (-200 to 1250) 32 to 392 (0 to 200) | +-2.2 °C or +-0.75% | +-1.1 °C or +-0.4% |
N | Orange Red | Orange | Brown | NP/NN Nicrosil/Nisil | -450 to 2372 (-270 to 1300) 32 to 392 (0 to 200) | +-2.2 °C or +-0.75% (2% below 0 °C) | +-1.1 °C or +-0.4% |
T | Blue Red | Blue | Brown | TP/TN Copper/Constantan | -328 to 662 (-270 to 350) 32 to 392 (0 to 200) | +-2.2 °C or +-0.75% (1.5% below 0 °C) | +-0.5 °C or +-0.4% |
B | Grey Red | Grey | None | BP/BN Platinum 30% Rhodium Platinum 6% Rhodium | 32 to 3092 (0 to 1700) 32 to 212 (0 to 100) | +-3.7 °C or +-0.5% over 800 °C | NOT ESTABLISHED |
C | White Red | White Red Trace | None | CP/CN Tungsten 5% Rhenium Tungsten 26% Rhenium | 32 to 4208 (0 to 2320) 32 to 1600 (0 to 870) | +-4.5 °C to or 425 °C 1% to 2320 °C | NOT ESTABLISHED |
R/S | Black Red | Green | None | RP/RN R=Platinum/13% Rhodium S=10% Rhodium/Pure Platinum | 32 to 2462 (0 to 1450) 32 to 300 (0 to 150) | 1.5 °C or 0.25% | 0.6 °C or 0.1% |
Thermocouples wires and cables used in applications where thermocouples are used to extend the signal to the controller or readout instrument. Following are the areas of application for our thermocouple wires