Toshniwal Thermocouples By Toshniwal Industries (P) Ltd.

Thermocouples are most common, convenient and versatile devices used to measure temperature. They are used in industries, power plants, metal melting furnaces, salt baths, industrial process control, laboratories and numerous other applications as sensing devices for measurement, control and recording of temperature from (-) 200 degree Celsius to +1800 degree Celsius. A thermocouple consists of two dissimilar metallic wires joined at one end known as hot junction. When the hot junction is heated, an emf. is produced which depends on the difference between the temperature of the hot junction and the temperature of free ends known as cold junction. This thermo emf is measured by galvanometric / potentiometer /digital instruments to display temperature.