Chemistry: analytical and immunological testing – Condition responsive control
Patent
1988-10-14
1991-02-12
Hart, Charles
Chemistry: analytical and immunological testing
Condition responsive control
422 62, 422 8202, 436147, 436150, 436164, G01N 3508
Patent
active
049923803
ABSTRACT:
The performance of a treating agent added to a body of water employed in a cooling tower is continuously monitored by real-time analysis of a spectral or chemical characteristic of an inert tracer proportioned to the treating agent, said characteristic being indicative of tracer concentration, and converted to a voltage analog. The voltage analog is compared to a monitor value representing par performance and if performance is nonstandard (nonpar) a signal is generated which alters the output of a pump which feeds the dosage of treating agent containing proportioned tracer.
REFERENCES:
patent: 3561935 (1971-02-01), Beal
patent: 4023022 (1977-05-01), Mukae et al.
patent: 4648043 (1987-03-01), O'Leary
patent: 4783314 (1988-11-01), Hooks et al.
Hickey James J.
Hoots John E.
Hoy Wayne H.
Johnson Donald A.
Moriarty Barbara E.
Hart Charles
Nalco Chemical Company
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