PID Temperature Controller System

TC (PID) - 5

Temperature control is an important application of control theory to industrial processes. This experiment has been designed to expose the students to such a practical control system, its various stages for control, and the tuning of a PID controller. The process consists of a small and fast responding oven which can be controlled in the temperature range from ambient to about 90°C. Temperature readings may be taken manually on a 3½ digit meter, mounted on the main unit, at regular intervals. A built-in digital timer having ‘START’, ‘STOP’ and ‘PAUSE’ switches on the panel makes the conduct of an experiment very simple. This design of the oven avoids expensive accessories like an X-Y recorder for conducting the experiment. A forced cooling arrangement has been provided to bring the oven temperature down to room temperature after every experiment.

  • Identification of the oven parameters.
  • Study of ON-OFF temperature control (with adjustable relay characteristics).
  • Study of P, PI, PD and PID controls having adjustable coefficients.
  • Temperature controller with facilities for P, I, D and relay control blocks.
  • Operating temperature: Ambient to 90°C.
  • Separate controls for P, I, D channel gains.
  • Two settings for relay hysteresis.
  • Fast 25W oven fitted with IC temperature sensor.
  • Forced cooling option to ready oven for next experiment
  • Digital display of set and measured temperature on a 3½ digit built-in DVM,
  • 0-9999 sec, timer on panel for a convenient temperature response experiment.
  • Buffered output for recorder.
  • IC regulation in controller circuit power supplies.
  • 220V±10%, 50Hz mains operation.
  • Supporting literature and patch cords included.
  • No accessories required.
  • Fast compact oven upto 90°C.
  • Forced cooling option.
  • Variety of control actions.
  • Digital temperature readout.
  • Built-in timer, 0-9999 sec.
  • Solid state temperature sensor.



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