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This bench allows understanding the different components of a pressure control loop (sensor, actuator, controller) and understanding the PID controller’s actions to attain the static state as a function of a disturbance.


Teaching objectives

- Study of air pressure control
- Study of a closed loop.
- Setting of a PID controller.
- Balancing the pressure of an air tank subjected to disturbances by air injection through a solenoid valve.


Technical specifications

- A tank under pressure , 4 bars maxi
- A proportional pneumatic valve
- 1 manometer 0-10 bars
- 1 disturbance valve with micrometric setting
- 1 setting valve 12 bars
- Universal input controller, output 4/20 mA, control algorithm P, PI,PID, PD+, MR. Automatic or manual operation – autoadaptive
- A pressure sensor, output 4-20 mA, 0-10 bars.
- Supplied with technical documentation

- Data acquisition module ref MAC composed with :
- A regulator with a RS485 communication card. In this case the reference number of the equipment equipped with the regulator with card become MP114VE
- A converter RS485/RS232
- A data acquisition software under Windows allowing :

- Reading PID parameters,
- The drawing of the curves,
- The remote control of the regulator parameters
- The storage of the values

- PC computer type Pentium IV



1 700 x 1 200 x 600 mm.


Essential requirements

- Power supply : 220 V mono 50 Hz

- Air supply : 4 bars