Introduction To Compensating Wires

Compensating wires are specialized wires used to extend the cold junction of a thermocouple to a location far from high temperatures and with a more stable temperature. Essentially, a thermocouple is composed of two different metals. Within a certain temperature range, its thermoelectric properties are essentially the same as those of the main thermocouple. By connecting compensating wires to the cold junction of the thermocouple, the temperature signal output by the thermocouple can be transmitted to a control room tens of meters away, and sent to display or control instruments. This is equivalent to extending the thermocouple to a location with a constant temperature, solving the problem of high temperature and temperature instability caused by the cold junction being near hot equipment. They are easy to use and are frequently used in thermocouple installation. These are specialized wires; each type of compensating wire can only be used with a corresponding type of thermocouple, and the positive and negative polarities must not be reversed.