How should a thermocouple be stored before installation?

Storing a thermocouple flat and without kinks is essential because this practice helps maintain the integrity and accuracy of the sensor. A thermocouple is designed to measure temperature through its junction, and any bends or kinks can create stress or strain on the connection points, potentially leading to inaccurate readings or damage to the thermocouple itself. When stored flat, the thermocouple can remain in its optimal condition, ensuring reliable performance once it is installed and put into use.

In contrast, storing it in a humid environment, coiled tightly, or on a hot surface could jeopardize its functionality. Humidity can lead to corrosion or short-circuiting, while a tight coil may create pressure points that could break the wires. Placing it on a hot surface can subject the thermocouple to extreme temperatures before installation, affecting its calibration and accuracy when eventually used. Therefore, flat storage without kinks is the recommended practice for ensuring proper functionality and longevity of the thermocouple.