K-Type Thermocouple - (AD76928)

Description:

The types of thermocouples refer to the differences in the composition of the wires that make up the temperature sensors. A thermocouple is assembled by joining two wires, each of which has a different connection, resulting in different types of thermocouples.

Thermocouples are designated by capital letters that uniquely correspond to the composition of their elements.

The K-type thermocouple is the most widely used sensor for instrumentation in high-temperature systems. The alloys present in this type of thermocouple facilitate measurements, using appropriate gauges and materials, up to 1250°C.

The elements that make up the K-type thermocouple are:

- Positive element: Chromel®, Nickel 90%, Chromium 10%

- Negative element: Alumel®, 95% Nickel, 2% Manganese, 2% Aluminum, 1% Silicon

The positive element of the K-type thermocouple is sensitive to the action of a magnet, allowing Chromel® to be identified during field testing.

This thermocouple can measure temperatures from -200°C to +1350°C.