DDI 209
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Very reliable even for pumping rates as low as 0.005 l/h

Instead of having to convert the required litre capacity per hour into the corresponding stroke frequency (strokes per minute) of the pump, all you now need to do with DDI is enter the litres per hour. You no longer need either knowledge of equations or a pocket calculator. The stroke adjustment button is thus consigned to history.

The pump can, be adapted quickly and easily to the user’s own specific process requirements. The calibration process is also particularly straightforward. The integrated microelectronics calculate the correction factor that is needed and within a few moments the pump is ready for high-precision operation. Even inexperienced operators require only a few minutes to learn the most important steps.

DDI 209 – compelling benefits:

  • Very consistent, finely tuned and, consequently, virtually continuous dosing
  • The gentle suction motion reduces gassing of the medium and, in conjunction with the consistently high suction volume, ensures that the processes involved remain highly reliable even when difficult substances are concerned.
  • Slow-Mode particularly for viscous media with low vapour pressure: This is an operating function where the suction stroke can be decelerated specifically.
  • User-friendly batch programming with timer function. Simply enter batch start, batch duration and dosing flow, the pump will regulate the necessary dosing speed.
  • Contact signal control : Input in ml per contact with ingeniously regulated continuous dosing.
  • Current signal control: 0(4) – 20 mA with display of the current dosing capacity.
  • Total service-hours counter and total dosing flow counter.
  • Code function for protection against non-authorised access.
  • Memory function : Saves non-processed contact signals so that the pump can process them later.

DDI 209 P3 – the unique priming principle:

  • Highly effective deaeration: Drawing in small quantities of liquid is no longer problematical.
  • A large quantity of the medium is drawn into the primary chamber of the dosing head and, following precise calibration, is dosed in the quantity actually required for the process.
  • Added financial benefit: the medium permanently remaining in the integrated priming chamber allows the container exchange without system stop.

DDI 209 and DDI 209 P3 FM – the pioneering system for across-the-board flow and pressure monitoring in the dosing head.

  • Dosing malfunctions are detected and reported immediately and reliably, even with very low volumetric flows.
  • The system is monitored for excess pressure on the pressure side: simply set the maximum permissible pressure in the dosing head and the pump will stop if it is exceeded.
  • The prevailing pressure is measured continually
  • and can be queried at any time at the touch of a button.
  • With the FM there is no longer any need for a separate pressure switch or an overflow valve. That means no more time-consuming, expensive installations.

DDI 209 – pump remote control via Profibus DP V0:

The DDI pump family with optional Profibus DP V0 can easily be integrated into automated dosing processes. From a central control station, operators can monitor their digital PLC-networked digital dosing™ pumps using remote diagnosis and easily control all the main functions remotely. This includes, for example, remote deaeration of the dosing head.