The present disclosure is directed to systems and methods for a multiport connector assembly, used in telecommunication systems, that is designed to reduce electrical port to port crosstalk noise. Measurement data are processed to get a data curve for measuring a concentration of at least one reaction product. The system is preferably implemented within a search engine used to locate items that are available for electronic purchase, but may be implemented within other types of search engines. A control chamber within the valve body contains pressurized fluid from the pilot supply and is in fluid communication with the flow metering operator.