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Products  |  Process Engineering  |  Simple Process Engineering Control Systems  |  RT 532
RT 532 Pressure Control Trainer Show data sheet (pdf file) Print page
Technical Description

  This trainer provides a comprehensive experimental introduction to the fundamentals of control engineering using an example of pressure control.

  The air pressure control system is a 2nd order system. It comprises two in-line pressure tanks interconnected by a flow control valve. An additional valve on the second tank makes air tapping possible and so can be used to simulate a disturbance variable. A pressure sensor measures the pressure in the second vessel. The controller used is a state-of-the-art digital industrial controller. The actuator in the loop is a pneumatically operated control valve with a standardised current signal input. The controlled variable X and the manipulating variable Y are plotted directly on an integrated 2-channel line recorder. Alternatively, the variables can be tapped as analogue signals at lab jacks on the switch cabinet. This enables external recording equipment, such as an oscilloscope or a flatbed plotter, to be connected.

  A process control software (RT 650.50) is optionally available. The software permits the construction of a complete networked system comprising multiple trainers from the RT 512 - RT 552 series. The key process variables can also be represented, and control functions executed.


  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
- real industrial control engineering

  controllers, transducers, actuators
- operation and parameterisation of the local

  industrial controller  
  * manually (by keyboard)
  * using the RT 650.50 process control software
- control response to
  * 1st order controlled system
  * 2nd order controlled system
- investigation of disturbance and control response

- controller optimisation
- investigation of the properties of the open and

  closed control loops
- processing of process variables using external

  equipment, e.g. oscilloscope or plotter
- together with accessory RT 650.50 and other

  trainers (RT 512, RT 522, RT 542, RT 552):

  familiarisation with and use of process control

  software (SCADA)


* Experimental introduction to control engineering

  using an example of pressure control1
* Construction of the system with components

  commonly used in industry1 
* Digital controller with freely selectable parameters:

  P, I, D and all combinations1
* Integrated 2-channel line recorder1
* Optional process control software RT 650.50

* Construction of a complete networked system via

  Profibus interface possible

Available accessories
RT 650.50 -- Process Control Software for RT 512 - RT 552 Series
Alternative products
RT 450.03 -- Controlled System Module: Pressure
RT 512 -- Level Control Trainer
RT 522 -- Flow Control Trainer
RT 542 -- Temperature Control Trainer
RT 552 -- pH-Value Control Trainer
RT 634 -- Pressure Control Demonstration Unit
RT 512 - RT 552 Process Control Training Rigs with Process Control System

[1] trainer for control engineering experiments
[2] pressure control process, equipped with standard industrial components
[3] pressure measurement by pressure sensor 
[4] generation of disturbance variables by drain valve
[5] 2 pressure tanks with pressure relief valve and manometer for direct observation of the tank pressure
[6] valves permit investigation of a 1st order controlled system (1 tank) or 2nd order controlled system (2 in-line tanks)
[7] pneumatically operated control valve with electro-pneumatic positioner
[8] digital controller, parameterisable as a P, PI or PID controller
[9] 2-channel line recorder
[10] process variables X and Y accessible as analogue signals via lab jacks


Technical Data

Pressure tank
- capacity: 10L
- max. pressure: 10bar
- operating pressure: 6bar
Pressure sensor: 0...6bar
Pneumatically operated control valve DN 15
- Kvs: 0,1m/h
- reference variable: 4...20mA
- stroke: 15mm
- characteristic curve equal-percentage
Line recorder
- 2x 4...20mA
- feed rate 0...3.600mm/h, stepped
- process variables X, Y as analogue signals: 4...20mA


Dimensions and Weight
LxWxH: 1.000x700x1.750mm
Weight: approx. 110kg
Required for Operation

230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA, 1 phase
Compressed air: 3...8bar

Scope of Delivery

1 trainer

1 set of cables

1 hose

1 set of instructional material

Order Details
080.53200  RT 532  Pressure Control Trainer
© 2005 G.U.N.T. Gerätebau GmbH