There are many types of thermocouples, each with its own unique characteristics. You can easily identify a thermocouple type by the colors of its wire insulation. In this video we’ll be focusing on the ANSI wire color coding used by the United States and Canada. In ANSI color coding, the red wire of a thermocouple is negative, and the positive wire is color coded to the type of thermocouple.
There are many types of thermocouples, each with its own unique characteristics.
You can easily identify a thermocouple type by the colors of its wire insulation.
In this video we’ll be focusing on the ANSI wire color coding used by the United States and Canada.
In ANSI color coding, the red wire of a thermocouple is negative, and the positive wire is color coded to the type of thermocouple.
A type K thermocouple has one red wire and one yellow wire. Type K thermocouples have a useful temperature range of negative 200 to 1,250 degrees Celsius.
A type J thermocouple has one red wire and one white wire. Type J thermocouples have a useful temperature range of 0 to 750 degrees Celsius.
A type T thermocouple has one red wire and one blue wire. Type T thermocouples have a useful temperature range of negative 200 to 350 degrees Celsius.
A type N thermocouple has one red wire and one orange wire. Type N thermocouples have a useful temperature range of negative 270 to 1,300 degrees Celsius.
Finally, a type E thermocouple has one red wire and one purple wire. Type E thermocouples have a temperature range of negative 200 to 900 degrees Celsius.
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