Description

Gastec H2S-50EE Hydrogen Sulphide Sensor

Gastec H2S-50EE Hydrogen Sulphide Sensor Controlled potential electrolysis sensor

From the mid-1960s, controlled potential electrolysis type sensors have attracted much attention as a means for sensing and measuring air pollutants such as sulphur dioxide and nitrogen oxide right at the source where they are generated and they are increasingly being used in such contents. In the latter half of the 1970s, they came to be more widely accepted as carbon monoxide or hydrogen sulphide measuring instruments alongside other combustion type or galvanic sensors; not only for flue gas monitoring or occupational hygiene and safety applications.

Entering the 1980s, amid technical progress and development of new industries, the trend was towards enhanced sensitivity of existing sensors which was proactively pursued while the application range was also expanded greatly as sensors were developed for unusual gases, acidic gas, halogen, etc.

An extremely wide range of gases can be sensed and measured
High susceptibility to interference by similar gases, making individual measurement of gases of the same family quite difficult at times
Selectivity can be enhanced by changing the electric potential, the electrode material, and the electrolyte solution