Liquid conductivity monitor

Details Liquid conductivity monitor Liquid conductivity monitor

G - Physics

01

N

324/45

G01N 27/06 (2006.01) G01N 27/07 (2006.01) G01R 27/22 (2006.01)

Patent

CA 1201480

LIQUID CONDUCTIVITY MONITOR Robert A. Clack Abstract of the Disclosure A liquid conductivity monitoring device includes an elongated cylindrical housing having parallel-spaced electrodes at one end for insertion into a liquid carrying conduit, and a transparent user-viewable lens at its other end. The electrodes are connected within the housing to a differential amplifier which provides a change in output signal level when the liquid conductivity exceeds a predeter- mined threshold level. A pair of oppositely-poled LED's of different colors connected between respective unidirectional current sources and the output of the differential amplifier and viewable through the lens indicate acceptable and un- acceptable conductivity levels to the user.

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