| 摘要 |
The object of the invention is a process for treating, in particular softening water by ion exchange in a regenerable medium, with exhaustion of the medium being measure in a bypass provided parallel to the main flow of the medium to the water sampling point and a suitable system in which the bypass line includes a measuring cell. It is therefore the aim of the invention to secure a flow through the measuring cell irrespective of that of the medium. In order to achieve this aim, control of the main flow and a suitable increase of the pressure gradient in the bypass, irrespective of the flow, is effected by means of a control unit (40), increasing the pressure reduction in the measuring cell irrespective of the flow. The throttling of the main flow results in a relative reduction of the bypass resistance and therefore all increased flow to the measuring cell.
|
