In the cables, varied EMFs are generated with different metal pairs that are further proportional to hot junction and the point where it is measured. All these cables are available in different color codes or cores and sheathing as per the international standards..
Description:- Extension leads of different metals but having similar EMF output between 0°c to 100°c connected between Thermocouple metals junction and the measuring instruments are called compensating cables which are generally recommended as solid conductor leads.
Application:- Different metal pairs generate different EMFs which is proportionate to the hot junction and the point where it is measured. Common combination of thermocouple metals.