Flow Process Control Trainer
(CT-022)

1.Tank, 2.Pump, 3.Rotameter, 4.Flowmeter sensor, 5.Propotional valve, 6.Schematic diagram, 7.ON/OFF trainer switch, 8.Emeregncy button, 9.Pump indication LED, 10.Valve indication LED.

  • Familiarization with types and functions of different control systems
  • Investigation of open loop circuit
  • Investigation of closed loop circuit
  • Demonstration of different types of PID controllers used to control liquid flow:
    • P-controller
    • PI- controller
    • PID- controller
  • Tank
    • Volume: 7 liters
    • Material: acrylic
  • Pump
    • Voltage: 12-volt, DC
    • Flowrate: 10 L/min
    • Pressure: 0.5 bar
  • Turbine Flowmeter sensor
    • Flow range: 0.3-6 L/min
  • Proportional valve
    • Flow rate: 1.1 m3/h
    • Port size: ½ inch
  • Rotameter
    • Flow range: 25-250 L/h
  • Flow process control trainer - (CT - 022)
  • BEDO Software + USB cable
  • Hard copy user manual
  • Laboratory PC

Flow 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 flow control. The trainer allows trainees to regulate and control the stream flow 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 flow 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 features 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 a tank, a pump, two flow measuring elements and a proportional valve.
  • The tank is made of transparent material to provide a better observation of the process.
  • The pump is mainly used to deliver water from and to the tank in a closed loop system.
  • The pump can also be used to introduce disturbances to the system by varying the speed of the pump.
  • The unit is supplied with turbine flowmeter sensor in order to measure the flowrate and convert this measurement into a signal that can be transmitted back to the PID controller as a feedback.
  • The unit is also aided with flow sensor (Rotameter) in order to ensure the turbine sensor readings are accurate.
  • The proportional valve included in the system works as an actuator that varies the size of flow passage according to the received signal from the PID controller.
  • 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.
  • Software allows trainees 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 PC (not included) using USB socket and data acquisition software.
  • The unit is supplied with two LEDs indicating the operation state of the pump and the valve, in addition to the ON/OFF switch and emergency button.
  • The unit is equipped with two handles for easier mobility.