Study of P.I.D. Controller Trainer, Model – CPID – 101.


Today in the fast track of development. Proportional–Integral–Derivative (PID) Control action is the most widely used in industrial process like sugar, paper, chemical, food and any other manufacturing industries. These manufacturing process systems are usually slow, complex and are characterized by relatively incomplete or uncertain mathematical description. Therefore, PID Controller is used in such situations, because of  the  parameters  the  PID Controller may be adjusted experimentally.

The complete unit is housed inside a metallic cabinet having the simulated building blocks like error detector, delay, integrator, time constants, amplifier, etc. on the front panel. All the necessary switches. potentiometers and test points are  provided on the front panel. Fig. 1 show the diagrams of the system.


  • This  unit  is  inside  a  metallic  cabinet  with  front  panel  block  diagram. 
  • All  the  necessary  switches,  potentiometer  and  test  points  are  on  the  front  panel.
  • All  the  waveforms  can  be  measured  on  a  C.R.O.
  • Simulated  blocks  for  integrator,  time  constants,  error  detector,  delay  and  gain.
  •  PID  Controller,  Configurable  as  P, PI, PD  or  PID.
  • Proportional  Band  :  5%  to  50%  (Gain  2 – 20)
  • Integral  Time  :     10 – 100 Milli second.
  • Derivative  Time   :   2 – 20 Milli second.
  • Builtin  Signal  Source,  1 Vp-p (min)  at  40 Hz  (typical), 
  • Triangular  Wave  :  1 Vp-p (Min.)  at  40 Hz  (typical).
  • Builtin  3 ½  Digit  Digital  Voltmeter  for  DC  Measurement.
  • Builtin  Regulated  Power  Supply  :  230 Volt,  ± 10%,  50 Hz   mains  operated.
  • Detailed  literature  and  patch  cords.


  • To  study  the  open  loop  response  of  various  process  configuration.
  • To  study  the  closed  loop  response  of  various  process  configuration.
  • To  study  the  performance  characteristics  of  an  analog  PID  Controller  using  simulated     blocks.


  1.  A  general  purpose  Dual  Trace,  Oscilloscope.