초록 ▼

Apparatus and process are provided for measuring and monitoring the free active chlorine content of an aqueous solution. Regulation of the addition of chlorinating substances to maintain a desired chlorine level in drinking or bathing water is further provided. The apparatus preferably utilizes a me

Apparatus and process are provided for measuring and monitoring the free active chlorine content of an aqueous solution. Regulation of the addition of chlorinating substances to maintain a desired chlorine level in drinking or bathing water is further provided. The apparatus preferably utilizes a measuring cell having electrodes comprised of a gold-nickel metallic alloy wherein gold is contained in an amount 90-97% by weight and nickel in an amount of 10-3% by weight. The measuring cell is connected to an electrical comparison circuit which controls a regulator or magnetic valve, in order to control the flow of active chlorine into the system.

대표청구항 ▼

A process for measuring and monitoring the free chlorine content of an aqueous solution comprising: (a) providing a direct current source to at least two electrodes housed in a sample sell, at least one electrode being of the composition, comprising an alloy of gold and a metal selected from the gro

A process for measuring and monitoring the free chlorine content of an aqueous solution comprising: (a) providing a direct current source to at least two electrodes housed in a sample sell, at least one electrode being of the composition, comprising an alloy of gold and a metal selected from the group consisting of nickel, copper or iron, wherein gold is contained in an amount of about 90% to about 97% by weight and said nickel, copper or iron is contained in an amount of about 10% to about 3% by weight, (b) flushing said electrodes in said cell with a sample of said aqueous solution, (c) amplifying the output signal from said electrodes, this signal being proportional to the free chlorine content of said aqueous solution; (d) comparing said amplified signal to an adjustable reference signal, the difference in value of the measured signal and reference value being proportional to the free chlorine content of said aqueous system, (e) utilizing said difference to regulate a valve adjusting the flow of additional chlorine to said aqueous solution.