pH Meter probe assembly

Details pH Meter probe assembly pH Meter probe assembly

1981-06-12

1983-11-15

Tokar, Michael J.

Electricity: measuring and testing

Electrolyte properties

Using a ph determining device

210793, G01N 2756

Patent

active

044158580

ABSTRACT:
An assembly for mounting a pH probe in a flowing solution, such as a sanitary sewer line, which prevents the sensitive glass portion of the probe from becoming coated with grease, oil, and other contaminants, whereby the probe gives reliable pH indication over an extended period of time. The pH probe assembly utilizes a special filter media and a timed back-rinse feature for flushing clear surface contaminants of the filter. The flushing liquid is of a known pH and is utilized to check performance of the probe.

REFERENCES:
patent: 2209487 (1940-07-01), Wagner
patent: 4187175 (1980-02-01), Roberts

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