Electricity: measuring and testing – Conductor identification or location – Inaccessible
Patent
1976-11-18
1977-12-20
Krawczewicz, Stanley T.
Electricity: measuring and testing
Conductor identification or location
Inaccessible
324 73R, 340 20D, 364554, G01R 2726
Patent
active
040644553
ABSTRACT:
A system for monitoring the condition of a plurality of fluids as determined from measured electrical characteristics of samples of the fluids which are successively applied to a sensor. The system includes a remote test terminal having a remote controller and associated memory, a data entry device and display, and a test module. The test module includes the sensor and a coupled electrical circuit for generating a test signal representative of the electrical characteristics of a fluid sample applied to the sensor. The remote controller is responsive to a user operation at the data entry device to generate and store sample identification and period of use signals in the memory for each sample applied to a sensor, and to also control the test module to generate the test signal for the sample and to store that signal in the memory in conjunction with the sample identification and period of use signals.
REFERENCES:
patent: 3182255 (1965-05-01), Hopkins et al.
patent: 3330159 (1967-07-01), Ongaro
patent: 3331019 (1967-07-01), Irwin
patent: 3984766 (1976-10-01), Thornton
Hopkins Evan Lloyd
Wedel Jerry Leslie
Hopkins Manufacturing Corporation
Krawczewicz Stanley T.
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