Experiments Included:

  • Study of the Level Sensor
  • Study of the Characteristics of the Pump and of the Solenoid Valve
  • Study of the characteristics of the static process and of the time constants
  • ON-OFF, P, PI, PD and PID Closed Loop Control of the Level

Level Control Trainer contains an educational board with vessels and a set of sensors and actuators for level and flow. A control module, containing the interface circuits for the sensors and the actuators and the ON/OFF, proportional, integral and derivative control circuits (PID).


  • Sensors installed on-board
  • Control Circuits Installed
  • Drivers Installed
  • Protection Circuits Installed

Technical Features:

  • Fixed Supply DC: +15V, -15V
  • Vessel: Dual 5 Liter approx.
  • Water Circulation Pump: 10 l/min
  • Piping: Plastic
  • Level Sensor: LVDT, Float Switch
  • Flow Sensor: Direct Reading
  • Valves: Drain, Solenoid, Needle
  • Level Sensor Interface: Precision Rectifier and DC Amplifier with Offset and Gain Control
  • ON/OFF Control: Comparator with Hysteresis Control
  • Analog Source: 0 ~ +10V, 0 ~ ±10V
  • PID Controller: Proportional, Integral & Differential
  • Control with Feedback
  • Pump Driver: DC to PWM Driver with DC Level Offset Control
  • Solenoid Valve Driver: ON/OF Control with Driver

Accessories: Power Cords, 2mm Patch Cords, Experimental Manual


  • IT-5204SW Digital PID Controller with Data Acquisition Unit / Interface Software
  • IT-5204P Programable Logic Controller Unit

Features of Interface Software:

Level Control

  • User can maintain level of liquid manually, through ON/OFF control or through software PID control algorithm.


  • PID parameters are controllable and graph plotting is also available.