Glossary - Thermo Scientific Orion 2111XP Manual

Section 1 | General Information

Glossary

Refer to Figure 3.
Inlet Valve – Accepts the sample stream via 1/4 inch NPTF connector. The operator must
supply the sample with a pressure between 8 and 100 psig.
Inlet Filter – 60 micron stainless steel filter traps particulate matter in the sample stream.
Bypass/Needle Valve – Used to redirect flow in the bypass system.
Pressure Regulator – Adjusts flow on the incoming sample stream.
Flow Meter – Measures sample flow rate.
Restrictor Tube Assembly – Used in conjunction with the pressure regulator to lower
downstream pressure.
Reagent Manifold – Directs sample flow in and out of the reagent bottle assembly.
Reagent Bottle Adapter Assembly – Connects the reagent bottle assembly to the manifold.
Diffusion Tubing Assembly – Semi-permeable tubing through which reagent diffuses into the
sample.
Reagent Bottle – Contains water-soluble amine or ammonia reagent that raise the sample pH.
Flow Cell – Contains sodium sensing electrode, reference electrode and ATC probe.
Diverter Valve – Allows the flow cell reservoir to fill during calibration by forming a closed-loop
system.
Sodium Sensing Electrode – Senses sodium ions in sample stream and produce an electrical
potential dependent on sample concentration.
Reference Electrode – Provides a constant reference potential and completes the
measurement circuit.
Reference Electrode Filling Solution Bottle – Provides constant flow of electrolyte solution
through reference electrode for maximum stability.
ATC Probe – Measures sample temperature and inputs data to microprocessor for automatic
temperature compensation (ATC).
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8 Orion 2111XP Sodium Analyzer Thermo Scientific