초록 ▼

Apparatus and methods for supplying a portion of a fluid stream and, alternately, a fluid of known composition and concentration to an analyzer are provided. The fluid stream is directed through a series of connected chambers formed in an integral housing. A sampling needle has an inlet in one of th

Apparatus and methods for supplying a portion of a fluid stream and, alternately, a fluid of known composition and concentration to an analyzer are provided. The fluid stream is directed through a series of connected chambers formed in an integral housing. A sampling needle has an inlet in one of the chambers and an outlet in fluid communication with the analyzer. When desired, a tube or vial containing a known fluid may be inserted into a chamber containing the sampling needle, so that the known fluid will be supplied to the analyzer. A second needle provides ventilation to the vial to prevent the formation of a vacuum as the known fluid is drained from the vial.

대표청구항 ▼

[ What is claimed is:] [1.] Analysis apparatus for analyzing a fluid in a fluid stream flowing between a fluid inlet and a drain, said apparatus comprising:(a) a header assembly adjacent to a fluid region defined in part by said header assembly, said header assembly including an input port fluidical

[ What is claimed is:] [1.] Analysis apparatus for analyzing a fluid in a fluid stream flowing between a fluid inlet and a drain, said apparatus comprising:(a) a header assembly adjacent to a fluid region defined in part by said header assembly, said header assembly including an input port fluidically coupled to said fluid inlet, to said fluid region, and to an output port, the output port being defined by a first needle having a hollow interior, an inlet end in said fluid region, and an outlet end external to said fluid region; and,(b) an analyzer linked in-line with said fluid stream, said analyzer including an analyzer inlet fluidically coupled to said outlet end of said first needle and an analyzer outlet fluidically coupled to said drain, whereby an analysis fluid flow path is defined from said fluid inlet seriatim through said input port, a portion of said fluid region, said inlet end of said first needle, said hollow interior of said first needle, said outlet end of said first needle, said analyzer inlet, said analyzer, said analyzer outlet, to said drain.