RT 532 Pressure control trainer

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.

  • experimental introduction to control engineering using an example of pressure control
  • construction of the system with components commonly used in industry
  • digital controller with freely selectable parameters: P, I, D and all combinations
  • integrated 2-channel line recorder
  • optional process control software RT 650.50 available
  • construction of a complete networked system via Profibus interface possible

2 pressure tanks

  • capacity: each 10L
  • max. pressure: 10bar
  • operating pressure: 6bar

Pressure sensor: 0…6bar
Pneumatically operated control valve

  • connecting flanges: DN15
  • Kvs: 0,1m3/h
  • reference variable: 4…20mA
  • stroke: 15mm
  • characteristic curve equal-percentage

Line recorder

  • 2x 4…20mA
  • feed rate 0…7200mm/h, stepped

Controller

  • process variables X, Y as analogue signals: 4…20mA

 

230V, 50Hz, 1 phase
230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase
UL/CSA optional

  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
  • fundamentals of control engineering
  • real industrial control engineering components: 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)

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Product number

RT 532

RT-532

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