In industrial applications it is quite essential to maintain and control the temperature of furnaces at certain predetermined Value for the sake of proper functioning of the system. Failing which may lead to loss of huge amount of capital. So this project basically deals with the temperature control of the furnace for which a digital temperature controller has been used which is actually a PID controller. Thermo – emf generated by the thermocouple acts as an input to the PID controller & the temperature of the furnace is maintained according to the pre-set value by increasing or decreasing the amount of electrical input given to the heater of the furnace. Keywords: PID, controller, furnace, heater, em
