Thermo Scientific Orion 2110XP Ammonia Analyzer

General InformationGlossaryRefer to Figure I-3.Inlet Valve – Accepts the sample stream via 1/4 inch NPTF connector. Theoperator must supply the sample with a pressure between 14 and 100 psig.Inlet Filter – 60 micron stainless steel filter traps particulate matter insample stream.Bypass/Needle Valve – Used to redirect flow in the bypass system.Pressure Regulator – Adjusts flow on the incoming sample stream.Flow Meter – Measures the sample flow rate.Check Valve – Prevents the backflow of sample.Restrictor Tube Assembly – Used in conjunction with the pressureregulator to lower downstream pressure.Reagent Manifold – Directs sample flow in and out of the reagentbottle assembly.Reagent Bottle Adapter Assembly – Connects the reagent bottle assemblyto the manifold.Diffusion Tubing Assembly – Semi-permeable tubing through which thereagent diffuses into the sample.Reagent Bottle – Contains the reagent that lowers the sample pH tobelow 4.Flow Cell – Contains the ammonia sensing electrode, reference electrodeand ATC probe.Diverter Valve – Allows the flow cell reservoir to fill during calibration byforming a closed-loop system.Ammonia Electrode – Senses ammonia ions in the sample stream andproduces an electrical potential dependent on the sample concentration.Reference Electrode – Provides a constant reference potential andcompletes the measurement circuit.Reference Electrode Filling Solution Bottle – Provides constant flow ofelectrolyte solution through reference electrode for maximum stability.Thermo Scientific Orion 2110XP Ammonia Analyzer User GuideI-8