AMMONIA METER

PROBLEM TO BE SOLVED: To provide a precise measurement value with keeping a flow rate always constant. SOLUTION: A flow meter 31 is arranged between an injection pump 11 for sample water and a six-way valve 12. A measurement signal of the flow rate measured with this flow meter 31 is introduced into...

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Bibliographic Details
Main Author KUSUMI MIYOKO
Format Patent
LanguageEnglish
Published 28.11.2003
Edition7
Subjects
CHEMISTRY
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
METALLURGY
PHYSICS
TESTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary:PROBLEM TO BE SOLVED: To provide a precise measurement value with keeping a flow rate always constant. SOLUTION: A flow meter 31 is arranged between an injection pump 11 for sample water and a six-way valve 12. A measurement signal of the flow rate measured with this flow meter 31 is introduced into a controller 32, and therein the measurement signal is arithmetically processed. When the measurement value lowers than a set flow rate from the result of the arithmetic process, the flow rate of the sample water is maintained constant by providing a control signal from the controller 32 to the injection pump 11 to increase the set value of the pump 11. COPYRIGHT: (C)2004,JPO
Bibliography:Application Number: JP20020145634