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Temperature Process Control Trainer

1.Peltier element, 2.External fan, 3.Temperature gauge, 4.Pt100 sensors, 5.Schematic diagram, 6.Experiment tube, 7.ON/OFF trainer switch, 8.Emergency button, 9.Peltier element heating indication LED, 10.Peltier element cooling indication LED, 11.Fan indication LED

  • Demonstration of different types of PID controllers used to control air temperature:
    • P-controller
    • PI- controller
    • PID- controller
  • Familiarization with types and functions of different control systems
  • Investigation of open loop circuit
  • Investigation of closed loop circuit
  • Peltier element
    • Voltage: 12-volt, DC
    • Power: 34 watts
  • Temperature sensors
    • Type: Pt100
    • Measuring range: 0-100°C
  • Experiment tube
    • D x L = 20 x 200 mm
    • Material of construction: copper material
  • Temperature process control trainer(MPC101)
  • Hard copy user manual
  • BEDO Software
  • Laboratory PC

Temperature process control trainer is a benchtop unit that features one of the most important industrial applications of PID (proportional – integral – derivative) controllers which is the temperature control. The trainer allows trainees to regulate and control the stream temperature using PID controller. The trainer aims at demonstrating the principles and function of PID controller, effect of manipulating the controller variables on the control system, as well as the limitations of each control system (P,PI & PID).

  • The educational unit features an industrial process of temperature control using PID controller to study and investigate its operation.
  • The trainer provides wide range of experiments to study the effects of different controller parameters (P, PI, PID) and their influence on the closed loop system response.
  • Printed on the unit front panel a schematic diagram of the system process featuring the main control elements such as : the controlled variable, disturbance source, measuring element and its feedback, PID controller and the final control element (actuator).
  • The system process consists of Peltier element, external fan, copper tube, temperature gauge and three PT100 temperature sensors.
  • Disturbance can be introduced by altering the external fan “heat removal” efficiency.
  • Peltier element can be used for heating or cooling processes depending on its polarity.
  • Peltier element also works as an actuator which responds to the signals received from the PID controller to eliminate the system errors as well as maintain the system stability.
  • The included tube is made of copper material to provide a higher thermal conductivity.
  • The copper tube is insulated using Teflon and covered by a stainless steel sheet for more protection.
  • Three PT100 sensors are included in the system and the mean temperature value is calculated in order to have more precise reading.
  • Mean temperature reading is converted into a signal and transmitted back to the PID system as a feedback.
  • A temperature gauge is used to ensure readings of the Pt100 sensors are accurate.
  • The system is supplied with a S/W to monitor, record and control the process, as well as to alter process settings when experimenting with different control systems.
  • The software is used to visualize the main differences of the system response curve due to the change of control gains P, I and D and to study the effect of each gain on the system response.
  • Process parameters can be instantly displayed on a Laboratory PC (not included) using USB socket and data acquisition software.
  • The unit is supplied with three LEDs indicating the operation state of the fan, Peltier element cooling and Peltier element heating, in addition to ON/OFF switch and emergency button.
  • The unit is equipped with two handles for easier mobility.