Liquid conductivity measuring device
Electrolytic conductance meter
ApplicationNo. 06/315737 filed on 10/28/1981
US Classes:324/439, Using a conductivity determining device324/133, Nonquantitative (e.g., hot-line indicator, polarity tester)324/450Which includes particular cell container structure
ExaminersPrimary: Levy, Stuart S.
Assistant: O'Shea, Kevin D.
Attorney, Agent or Firm
International ClassesG01R 27/22 (20060101)
G01N 27/07 (20060101)
G01N 27/06 (20060101)
AbstractA 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 predetermined 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 unacceptable conductivity levels to the user.
Field of SearchHaving conductance probe structure
With axially arranged electrodes
Which includes particular cell container structure
Using a conductivity determining device
Nonquantitative (e.g., hot-line indicator, polarity tester)
With concentric electrodes
Having particular meter scale or indicator