GE AIT-5202 PO, matched with OB-28118-00 sensing unit, belongs to GE legacy online gas analysis series, designed for continuous monitoring of process gas atmosphere in industrial production lines. The complete assembly includes transmitter main body and precision sensing element OB-28118-00, which converts gas concentration signals into standard electrical signals for data acquisition by host analyzer equipment.

The sensing unit OB-28118-00 adopts stable electrochemical or solid electrolyte measuring principle, featuring good selectivity against interfering gas components. It supports long-term continuous online measurement under controlled temperature and pressure sampling conditions. Each sensor undergoes factory calibration to guarantee measuring accuracy and repeatability after installation.

The AIT-5202 PO transmitter provides signal conditioning, temperature compensation and circuit driving functions for OB-28118-00. Processed measurement data can be transmitted via analog or digital interfaces to PLC, DCS and upper monitoring systems, supporting closed-loop process control, safety interlock and product quality monitoring.

The assembly adopts compact industrial structure design, adaptable to sample cabinet installation. Built-in surge protection and electromagnetic interference suppression circuits ensure reliable operation in industrial environments with vibration and electrical noise. Onboard status indicators help maintenance technicians quickly judge sensor operating status and fault information.

Typical application fields cover nitrogen generation, heat treatment furnace atmosphere control, petrochemical refining process monitoring, air separation unit and hydrogen production gas analysis. Real-time gas measurement helps operators optimize process parameters, avoid oxidation loss and ensure production safety.

This analytical hardware set has been discontinued by the original manufacturer. Currently available stock mainly serves equipment overhaul, on-site sensor replacement and spare backup of legacy gas analysis systems. Original surplus stock and fully tested refurbished assemblies can be supplied for field maintenance.

Before installation and commissioning, users must confirm matching between AIT-5202 PO host and OB-28118-00 sensing element, complete gas calibration and check sampling pipeline tightness. Regular calibration and sample filter maintenance are required to maintain long-term measuring stability. For newly built projects, modern GE Vernova / Panametrics gas analyzer series are recommended as upgraded alternative solutions.