Gesellschaft zur Förderung von Medizin-,
Bio- und Umwelttechnologien e. V.

Felsbachstraße 7 trenner 07745 Jena
Tel: 03641 366710 trenner Fax: 03641 366777
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Application field: Opto-chemical Ammonia sensor

Sensing of gaseous ammonia is of great interest in many fields. Conventional electrochemical sensors can’t often achieve the standards of long term stability, detection sensitivity and signal stability during continuous ammonia contact.

The new opto-chemical ammonia sensor of the GMBU works according the principle of a two-beam-photometer. The sensor offers a series of advantages as:

  • deposition of the sensitive opto-chemical layer with modern sol-gel-technology
  • detection of ammonia in the concentration range between 0 (1) ppm and 150 ppm with high sensitivity in the range up to 60 ppm
  • no ammonia consumption and therefore long-term stable sensitive layers
  • possibility of continuous measurement with high signal stability
  • low operating costs
  • internal storage of 500 measuring values and RS 232 – interface
  • self lighting gas supply (o,5 – 5 l/min); optional

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