초록 ▼

An amperometric bromine control system accurately maintains a desired concentration of bromine within a home spa or in other water features. The control system employs amperometric sensing to measure the bromine concentration in the spa water and uses this measurement to control the electrochemical

An amperometric bromine control system accurately maintains a desired concentration of bromine within a home spa or in other water features. The control system employs amperometric sensing to measure the bromine concentration in the spa water and uses this measurement to control the electrochemical production of bromine through the oxidation of aqueous bromide. The level of bromide in the spa water desirably is greater than 50 ppm in order to obtain a linear relationship between the current level sensed through the amperometic measurement and the concentration level of bromine in the water. In this manner, the control system can accurately measure the bromine concentration in the spa water and precisely maintain the bromine concentration within a desired range between about 2 ppm and 6 ppm.

대표청구항 ▼

[ What is claimed is:] [1.]1. In combination, a water feature filled with water containing a sanitizing agent and an automatic sanitizing system comprising:a sanitizing agent source communicating with the water in the water feature;an amperometric sensor including a probe positioned in contact with

[ What is claimed is:] [1.]1. In combination, a water feature filled with water containing a sanitizing agent and an automatic sanitizing system comprising:a sanitizing agent source communicating with the water in the water feature;an amperometric sensor including a probe positioned in contact with water, wherein said probe includes a plurality of electrodes, said sensor generating an output signal indicative of the concentration of sanitizing agent in the water;a control system receiving the signal from the sensor and operating the source at least between an active state and an inactive state depending on the concentration of the sanitizing agent in the water, whereby the concentration of the sanitizing agent in the water is automatically maintained within a preset range; andwherein said control system also controls a cleaning cycle by causing different voltages to be applied sequentially between a plurality of said electrodes of said probe.