Process controllers use PID temperature control to improve process accuracy. PID temperature controllers work using a formula to calculate the difference between the desired temperature setpoint and current process temperature. Then predicts how much power to use in subsequent process cycles to ensure the process temperature remains as close to the setpoint as possible by eliminating the impact of process environment changes.
PID temperature controllers differ from On/Off temperature controllers. Where 100% power is applied until the setpoint is reached. At which point the power is cut to 0% until the process temperature again falls below the setpoint. This leads to regular overshoots and lag which can affect the overall quality of the product.
