Overview
Today, the most common method of producing green hydrogen is water electrolysis, a process that uses electricity from renewable sources to split water into hydrogen and oxygen.
Hydrogen concentrations between 4 and 77 vol.% can produce explosive gas mixtures. Therefore, it is very important to eliminate and correct for humidity effects in catalytic combustion-based, metal oxide semiconductor-based and thermal conductivity-based hydrogen sensors during green hydrogen production. Without proper humidity compensation, water vapor in gas streams can significantly affect thermal conductivity-based hydrogen measurement, leading to hydrogen reading errors typically in the range of 1–5 vol% H₂ under normal humid conditions, and exceeding ±10% of reading under severe conditions involving high saturation, temperature fluctuations, or partial condensation.
Our new thermal conductivity H2 analyzer features MZD VaporSense™ Technology, which utilizes a hybrid compensation algorithm to dynamically correct the effects of humidity and temperature on thermal conductivity sensors, providing accurate, stable, and reliable hydrogen measurements for green hydrogen applications.
Principle
Thermal conductivity gas analyzer is an effective method to measure one of two components in a gas mixture (the thermal conductivities differ a lot). Mainly used to measure the content of hydrogen (H2), carbon dioxide (CO2), argon (Ar), etc.
When the sample gas enters the thermal conductivity cell, and a thermistor is used above the film to maintain a constant temperature. In this way, a small cavity is formed below and above the membrane, and the measurement gas can diffuse into it. In this way, the heat loss caused by the thermal conductivity of the sample gas is compensated by heating, and the power required to maintain a constant temperature of the membrane is a measurement of the thermal conductivity of the measured gas.
Advantage
★MZD VaporSense™ Technology for Temperature and Humidity Compensation
★ High-accuracy measurement
★ Low drift
★ Rugged and durable design
★ Long life
★ Fast response
Features
• Quick and convenient
The English navigation menu can be operated easily.
• Process safety
1.8" color LCD screen, magnetic button operation and debugging
LED alarm(NAMUR NE107), clearly visible from long distances and in dark areas
Alarm immediately, safe the process
• Powerful self-diagnosis function
Built-in heartbeat monitoring function and watchdog
Monitor the status of transmitter and sensors, and promptly remind customers to take necessary maintenance
High-standard hardware and software security and password protection
• ATEX / IECEx Exd II CT4 Optional
• 2 Relays (2A, 230V AC/DC freely set alarm) and 1 Relay (System alarm)
• RS485 MODBUS communication
Application
★ Water electrolysis to produce hydrogen
★ Hydrogenation unit
★ Hydrogen-cooled generator
★ University and research
★ Metal heat treatment/welding
★ Chemicals/Pharmaceuticals
Measurement components and ranges
• H2: 0 ~ 1% ~100%
Product datasheet: Hydrogen Analyzer, SMART-H2 
, if you need more information, please contact us at sales@mzdd.de.
Hydrogen Analyzer, TCD Analyzer, Green ，Hydrogen