Engine Exhaust Particle Counters

High-Concentration Nanoparticle Emission Tester 3795-HC

Model Number: 3795-HC

Designed to measure total solid particle number concentrations directly from the tailpipe, whether in the field or during in-use testing.

Product Details

Building on the proven, regulatory-compliant Nanoparticle Emission Tester (NPET 3795), the High-Concentration NPET supports a wide range of emission sources, including internal combustion engines, gasoline- and diesel-powered vehicles, and biomass power plants. Its robust, user-friendly design makes it ideal for use by researchers, regulatory inspectors, and maintenance personnel.

Equipped with a built-in catalytic stripper that removes volatile particles, the High-Concentration NPET enables accurate measurement of solid particle emissions only. Based on the same unique design principles as certification-grade instruments, it delivers laboratory-quality particle counting in real-world environments — and is capable of handling emission levels beyond certification limits, such as those upstream of after-treatment systems, upstream and downstream of Diesel or Gasoline Particle Filters, cold start emissions or biomass combustion emissions.

Applications

The High-Concentration Nanoparticle Emission Tester is suitable for a variety of applications, including:

  • In-use diesel machinery compliance certification
  • Exhaust after treatment inspection and maintenance programs
  • Diesel Particulate Filter (DPF) retrofit programs
  • Gasoline Particle Filter (GPF) characterization
  • Fleet emissions profiling
  • DPF/GPF regeneration studies
  • Cold start emission measurements
  • Combustion emissions research (biomass, wood burning) 

Features and Benefits

  • Direct measurement of particle number concentration using proven Condensation Particle Counter (CPC) technology
  • Sampling probe with integrated dilution to measure concentration up to 100,000,000 particles/cm³
  • Selectable measurement modes:
    • Real-time data logging for research
    • User-defined protocols for reporting test cycle results
  • Sampling probe with integrated dilution
  • Wide environmental operating range
    • -10°C to 40°C
    • 0 - 3,000 m