A Hydrogen Purity Analyzer is a gas analysis instrument used to measure the purity of hydrogen (H₂) in various industrial environments. These analyzers are essential in applications where high-purity hydrogen is critical, such as power generation (hydrogen-cooled generators), chemical manufacturing, semiconductors, and hydrogen fuel systems. They ensure operational safety, process efficiency, and compliance with industry standards. Thermal Conductivity Detector (TCD): Commonly used for H₂ due to its unique thermal properties. Electrochemical Sensors: Used in some portable or specific applications. Gas Chromatography (GC): For high-precision lab analysis (not used in online analyzers). ✅ High accuracy measurement (up to 99.999%) ✅ Fast response time and real-time display ✅ Digital and analog outputs (4-20 mA, RS485, Modbus) ✅ Compact, panel-mounted or wall-mounted design ✅ Long sensor life and low maintenance ✅ Optional sample conditioning system ✅ Compliance with safety standards (ATEX, IECEx) 🔹 Hydrogen-cooled generators (power plants) 🔹 Chemical and petrochemical industries 🔹 Hydrogen production plants (electrolysis, SMR) 🔹 Fuel cell systems 🔹 Heat treatment furnaces 🔹 Semiconductor manufacturing 🔹 Hydrogen storage and distribution In applications like hydrogen-cooled generators and fuel cells, impurities in hydrogen can reduce efficiency, cause corrosion, or lead to dangerous conditions. Most online analyzers use a Thermal Conductivity Detector (TCD), which distinguishes gases based on their heat conduction properties.