RESIDUAL CHLORINE GAGE AND WATER PURIFYING APPARATUS

Title:

RESIDUAL CHLORINE GAGE AND WATER PURIFYING APPARATUS

Document Type and Number:

Japanese Patent JP3390154

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To prevent detection sensitivity from lowering without using a mechanical drive mechanism in a current measuring type residual chlorine gage.
SOLUTION: In this current measuring type residual chlorine gage provided with a platinum electrode and a silver-silver chloride electrode in a flow cell where sample water flows at a fixed flow velocity, the platinum electrode potential relative to the silver-silver chloride electrode is alternatively changed over between a potential V1 (0-0.2 V) suited for the measurement of free chlorine concentration and a potential V2 (approximately -1 V) for reproducing the electrode so as to hold the detection sensitivity.

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Inventors:

Akihiko Okumura
Shu Hirabayashi
Hideaki Koizumi

Application Number:

JP26598199A

Publication Date:

March 24, 2003

Filing Date:

September 20, 1999

Export Citation:

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