Patent ID: 8658095

Claim:
A device for measuring oxidation-reduction potential (ORP) and a temperature in a hot water system, the device comprising: (a) a flow-through cell having a plurality of ports comprising: a first port and a second port; (b) a controller; (c) an integrated sensor component associated with the first port comprising: an ORP probe and a temperature detector, said integrated sensor component residing at least partially inside of the flow through cell, the ORP probe further comprising at least one electrical connection operable to relay information to said controller, wherein the ORP probe is operable to measure ORP in the hot water system at operating temperature and pressure, and the temperature detector further comprises a plurality of negative leads and a plurality of positive leads operable to relay information to said controller, wherein the controller is operable to determine whether a real-time ORP is within an ideal ORP range and further operable to cause addition of an effective amount of oxygen or an effective amount of one or more reductants to a feedwater of the hot water system, if the real-time ORP is not within the ideal ORP range; and (d) an external pressure-balanced reference electrode assembly associated with the second port comprising: a tube containing an electrolyte solution having a first end residing at least partially inside of the flow through cell and a second end, a porous frit disposed on said first end, and a multi-fitting housing comprising a seal attached to said second end, the multi-fitting housing having a silver/silver chloride half-cell reference electrode partially immersed in said electrolyte solution, and having an electrical connection operable to relay information to said controller.