| 摘要 |
<p>The invention concerns a process for detecting scale deposit in the liquid supply means (10) of a water pump driven machine comprising at least a water tank (1), a pump (3) and a heating means (4), where water is pumped from the water tank and fed to the heating means, and where the pump is energized by a controller (5) by providing the pump with an energizing signal (8) to provide an intended water flow rate F, wherein the actual water flow rate f (7) is measured and the discrepancy ” between the actual water flow rate f and the intended water flow rate F is directly and/or indirectly compared to an operating instruction related to scale deposit.</p> |
