HORIBA - Model MEXA-ONE-QL-NX -Laser Spectroscopic Motor Exhaust Gas Analyzer

• Simultaneous real-time measurement of four nitrogen compounds (NO, NO₂, N₂O and NH₃)
• Using Quantum Cascade Laser Mid-infrared Spectroscopy
• Wide dynamic range (e.g. NH₃: 0.6 ppm to 2000 ppm)
• Fast response measurement with the analyzer installed
  near the engine^*1
  NO / NO₂ / N₂O : Less than 2 seconds t_10-90 response
  NH₃ : Less than 5 seconds t_10-90 response

*1 For details of verification condition, refer to the specification table.

• Development of new NOx after-treatment systems, such as urea-SCR, CRTs and LNTs
• As an R&D tool for new regulations - Certification or reporting of GHG*2 emissions (EPA)
• Direct measurement of N2O from Heavy-duty and non-road engines - R&D related to Euro VI
• Direct measurement of NO2・NH3 from Heavy-duty engines

*2: GHG = Greenhouse Gas

1. Mid-IR laser with long optical path provides ultra high sensitivity
2. Dual path in a single cell gives wide dynamic measurement range
3. Minimum interference from co-existing components : High resolution spectrum (up to 0.001cm-1)
4. Ease of use : No liquid N2 required for detector

• Sample Line Temperature: 113 ± 6℃
• Response Time( t10-90):
• NO・NO2・N2O ： 2 seconds or less
• NH3 ： 5 seconds or less*
• Dimensions / Mass
• Main unit： W440×D660×H877 (mm)
• Approx. 120 kg (excluding protruding objects)

* Verification condition: Flow NH3 gas (50 ppm) from sample gas inlet at flow rate 8 L/min;

Using a sample probe of 0.3 m, a heated filter and a heated line of 6 m.