Patent ID: 9274080
Filing Date: 2016-03-01
CPC Classification: G01N

Claim Text:
1. An electrochemical measuring probe, for measuring a chemical or physical, measured variable, of a measured medium, comprises: at least one measuring half cell; and at least one reference half cell, wherein: said reference half cell includes: a housing of electrically insulating material, in which a reference electrolyte chamber containing a liquid-reference electrolyte is formed, and which has in a housing wall a diaphragm permeable for the reference electrolyte for providing electrolytic contact between said reference half cell and said measured medium; a potential indicating element extending into the reference electrolyte; a supply opening opening into said reference electrolyte chamber for supply of reference electrolyte into said reference electrolyte chamber; and a check valve blocking exit of reference electrolyte from said reference electrolyte chamber through said supply opening.