Digital Dosing represents state-of-the-art technology. This patented Grundfos solution sets new standards, including new principles and methods.
The operator can easily install and set the pump to discharge exactly the quantity of dosing liquid required in the application. In the display, the setting of the pump is read out directly in ml/h or l/h, pulse or batch, and the operation mode is easily identified by means of icons.
A unique drive and microprocessor control ensure that dosing liquids are discharged precisely and with low pulsation even when the pump is operating with high viscosity or degassing liquids. Instead of the conventional stroke length adjustment, the capacity of the DME is regulated by automatic adjustment of the motor speed during the discharge stroke and by fixed suction stroke speed, ensuring optimal and uniform mixing.
Fewer variants to cover all needs
The pumps feature powerful variable speed motor, a turn-down ratio of 1:1000/1:800 and a complete control interface including the following:
- full pulse control
- pulse batch control
- internal timer batch control
- analog 0/4-20 mA control
- level control
- fieldbus communication module
This ensures that the DME pumps cover the range from 0 to 940 litres per hour up to 18 bar. The switch mode power supply ensures that the same pump is working precisely, irrespective of the mains supply (100-240 V;50-60 Hz).