Thermocouple sensors generating emf/mV and RTD sensors generating the change in resistance value with respect to the change in temperature does not have a linear characteristic, hence to indicate the temperature within the accuracy of 0.1 C or 1 C throughout the measurable range, the need arises to linearized these non-linear curves.
The Linearized indication is achieved by software linearization technique. Along with the Digital Linearized indications, single or dual setpoint control is also available. The Control action is ON/OFF type (using Relay/SSR/Triac). One of the application areas of this controller is to use it as the safety controller (or police protection or redundant control) along with the microprocessor based PID or RAMP/SOAK program controller, where the indicating accuracies of both are matched without any ambiguity.