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    • Main Office
      Burkert Contromatic (Proprietary). Ltd.
      Visitors address:

      233 Albert Amon Road
      Millennium Business Park
      Meadowdale / Germiston

      Mailing address:

      P.O. Box 26260
      East Rand
      1462
      Phone +27 11 574 6000
      Fax +27 11 454 1477
      E-Mail fnyrf.mn@ohexreg.pbz
    • Office
      Durban Branch
      32 Grays-Inn Crescent
      Westville

      Phone +27 31 266 1600
      Fax +27 31 266 1495
      E-Mail fnyrf.mn@ohexreg.pbz
    • Office
      Cape Town Branch
      Unit 26, Northgate Business Park
      Northgate Estate

      Phone +27 21 510 7137
      Fax +27 21 510 7135
      E-Mail fnyrf.mn@ohexreg.pbz
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Continuous (PI-) controllers

Continuous controllers are used for demanding closed-loop control tasks.

There is a whole series of continuous controllers, with the main ones in use being P, PI, PD and PID controllers. These controller types differ from each other in terms of their dynamics, in other words the speed with which they move the actual value towards the set-point value depending on the level of control deviation. These controllers are characterized by their step response, or to be more precise, by the speed with which they react after a sudden change in the input variable, the control deviation xw.