Electricity: measuring and testing – Electrolyte properties – Using a conductivity determining device
Patent
1980-02-05
1982-05-11
Tokar, Michael J.
Electricity: measuring and testing
Electrolyte properties
Using a conductivity determining device
324449, G01N 2742
Patent
active
043296505
ABSTRACT:
A simplified clean conductivity or pH cell assembly comprising a solid plastic cell body and a test fluid conduit comprising a clean pipe fitting, affixed to the forward face of the solid body by means of an external clamp and a seal such as an O-ring. The clean pipe fitting is preferably formed of stainless steel and the internal surface thereof which comes in contact with the test fluid is plane and has no crevices or the like which could cause contamination of the fluid.
Pencil shaped electrodes are fixed in said solid body and extend therefrom into the test fluid in the conduit to be measured. The face of the solid body which is in contact with the test fluid is plane with no cavities, crevices, holes, projections, restricted channels, or the like. The electrodes for conductivity or pH measurement are cleanly formed of glass or stainless steel or other suitable material and have no surfaces which might result in contamination or the collection therein of dirt and the like. A temperature compensating network is in the solid body and an electrical connection from one electrode extends to this temperature compensating network, and an insulated feed-through is provided which contains electrical connections from the electrodes and the temperature compensating network and leads to a measuring or indicating instrument.
REFERENCES:
patent: 2780773 (1957-02-01), Channon, Jr.
McKernan Patrick F.
Teass, Jr. Horace A.
McNab Incorporated
Tokar Michael J.
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