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RT 030 Training System: Pressure Control, HSI
Education / GUNT Hamburg / Process Engineering / Fundamentals of Control Engineering /

This compact experimental unit offers every opportunity to learn the fundamentals of control engineering through experimentation on a  pressure control system.


  The experimental set-up is mounted on a housing which accommodates all the electronics. The pressure tank is charged with compressed air by a diaphragm gas pump. The advantage of the dial-gauge manometer is that the pressure in the tank can be observed directly at any time. The pressure is measured using a pressure sensor. The sensor output signal is sent to the software controller. The output signal from the controller influences the speed of the diaphragm gas pump and hence the flow rate. An air consumer is simulated by way of a flow control valve. A solenoid valve through which air can escape can be activated by the software to investigate the influence of disturbance variables.

  The powerful state-of-the-art software is an integral part of the training system, embodying the principle of hardware/software integration (HSI). It enables the experiments to be conducted and evaluated in a user-friendly manner. The software has network capability. The link between the experimental unit and the PC is made via a USB port.

  The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.


Learning Objectives / Experiments

- fundamentals of control engineering based on the

  example of a pressure control system with PT1

- open loop control response

- effects of different controller parameters and

  methods on the response of the closed loop


- recording of step responses 
  * reference variable
  * disturbance variable
- controller optimisation
- software-based controlled system simulation
  * comparison of different controlled system


[1] experimental unit for control engineering experiments
[2] pressure control in a tank
[3] speed controlled diaphragm gas pump
[4] electronic pressure sensor
[5] solenoid valve to generate disturbance variables
[6] software-based controlled system simulation
[7] process schematic on front panel

[8] networkable LabVIEW software via USB under Windows XP or Windows Vista


Technical Data

Diaphragm gas pump 
- max. flow rate: 3L/min
- max. positive pressure: 1bar
- max. negative pressure: 250mbar abs.
Pressure tank
- capacity: 0,4L
- operating pressure: 1bar
- max. pressure: 10bar
Pressure control range: 0...1bar
Solenoid valve: Kvs: 0,11m³/h
Pressure transducer: 0...1bar
Manometer: 0...1bar
Software controller configurable as P, PI, PID and switching controller

- process schematic with controller type selection

  (manual, continuous controller, two- or three-point

  controller, programmer) 
- time functions
- simulation function
- disturbance variable input


Dimensions and Weight
LxWxH: 610x430x340mm
Weight: approx. 17kg
Required for Operation
230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA, 1 phase
Scope of Delivery

1 experimental unit
1 software package, complete with USB cable
1 handbook: fundamentals of control engineering

   (RT 010 - RT 060)
1 instruction manual for RT 030

Order Details

080.03000  RT 030  Training System: Pressure Control, HSI