| 摘要 |
<p>An automatic control device for the delivery of water to rinsing baths comprises a control unit provided with an electronic stage, which continually measures the level of pollution in the rinsing water by means of a high frequency current and a pick-up. The unit controls the opening and closing of an electro-valve for the admission of pure water. The unit comprises a one-piece probe immersed in the rinsing water. The device for delivering water to rinsing baths effects an economy in water, reactants and neutralisers, and offers a reliable function which is completely safe with regard to electrical hazard, and remains unaffected by outside conditions.</p> |
