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Engine Exhaust Condensation Particle Counter 3790A

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Counting particles emitted from engines is valuable in engine emissions research, and is a critical component in engine type certification according to the Particle Measurement Programme (PMP). The TSI Engine Exhaust Condensation Particle Counter (EECPC) Model 3790A is designed specifically for these needs and satisfies UNECE R83 requirements and is a very valuable tool for any customer who needs to measure particles in engine exhaust.


Product Details

The EECPC 3790A fully meets all proposed PMP requirements for Euro 5 and Euro 6 (VI) regulations for light and heavy-duty vehicles. It builds upon the proven rugged, reliable, and highly repeatable performance of TSI's butanol CPC technology. The full-flow design incorporates new improvement and performance features, such as anti-spill/anti-flooding design, condensate removal system, and removable saturator for easy maintenance. EECPC 3790A has a lower particle size detection limit (D 50 ) of 23 nm to meet the PMP's requirement for eliminating measurement of volatile and semi-volatile nanoparticles formed by nucleation of gaseous compounds.

The TSI Models 379020A Rotating Disk Thermodiluter and 379030 Thermal Conditioner can be used with the EECPC to eliminate nanoparticles formed by condensation of volatile compounds found in engine exhaust, as required in GRPE/PMP regulations.


 Features and Benefits  

  • Meets the PMP lower particle size detection limit at the defined D 10 , D 25 , D 50 and D 90  particle sizes
  • Achieves a linear response to particle concentration from 1 to 10,000 particles/ cm 3 with R 2 >0.95
  • Achieves a counting accuracy of ± 10% against a traceable standard
  • Operates under full flow conditions using single particle counting
  • Calibration is in full compliance with PMP
  • Achieves readability of 0.1 particles/cm 3
  • Internal pulse-height monitor to indicate measurement quality
  • 10 Hz data rate for modal analysis


  • Diesel and gasoline engine emissions testing

Included Items  

  • Aerosol Instrument Manager® software

Resource Center

  • Can the CPC be operated with different carrier gases?
    Yes, but only inert gases.
  • Is the counting efficiency for each CPC determined individually?
    No. The CPC efficiency curve has been determined by testing a statistically valid number of CPCs and averaging the results to obtain the curve published in the product literature. Variation between units is very small. 

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