Buhler Bunox

Buhler Bunox
Buhler Bunox

The BUNOx gas converter allows easy and cost effective detection of nitrogen oxides (NOx) components in the flue gas (NO and NO2). BunOx converts almost 100% of the NO2 content of a sample gas to NO by means of a replaceable reactor cartridge. The resulting NO gas in measurable by any commercially available IR-analyzer. The BUNOX cartridge, designed in cooperation with Research Institutes, enables the conversion of high NO2 concentrations at a comparatively low temperature. Interferences on other typical components present in the flue gases such as CO, CO2, NO and SO2, are generally not observed. Moreover, a lifetime of over 12 months is possible under normal conditions. This leads to reduced maintenance costs. The maintenance effort is further minimized through the special reactor fastener on the front panel allowing rapid replacement of the cartridge without tools. The temperature pf the converter is adjustable at the front panel through an easy-to-handle micro-controller.


  • High conversion rate at low temperature
  • High NO2 conversion-capability (up to 300 ppm)
  • Long lifetime
  • Easy replacement of converter cartridge without tools
  • Temperature control by microcontroller
  • Adjustable temperature
  • Temperature alarm contact
  • 4-20 mA temperature output
  • Status- LEDs
  • Bypass solenoid valve (optional)
  • 19″ housing

Buhler Bunox PDF

Buhler Bunox
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