Hitech Instruments manufactures gas analysers using a variety of sensor technologies but always focused on application specific solutions. For applications in the biogas industry, this product offering includes GIR5000 biogas analysers, available locally from AMS Instrumentation and Calibration .
While the renewable energy biogas market is still in its infancy, Hitech manufactured its first GIR5000 biogas analyser over 15 years ago, using the intervening time to improve on its overall designed by adapting and changing components to provide optimal performance characteristics.
The oxygen cell in some biogas analysers, for example, lasts only one year, whereas the cell used in GIR5000 biogas analysers can last up to five years.
Another important innovation in the ongoing development of GIR5000 gas analysers is the patented hydrogen sulphide measurement system, which permits continuous measurement (not continuous sampling) of hydrogen sulphide, with the sensor lifetime exceeding one year at constant 2,000ppm H2S levels.
The risk of explosion in the renewable energy biogas industry is very real, with three explosions reported in German biogas plants in 2010, a typical number for the past few years. In the UK this problem is less severe, as hazardous area classification is commonplace.