Particle counter for MOT centers: choosing the right equipment

What is an automotive exhaust particle counter?
The measurement equipment for exhaust particles from diesel vehicles with particulate filters is very different from a simple dust counter or an air quality analyzer.
The automotive exhaust particle analyzer is designed to:
- ↦ monitor the efficiency of the particulate filter (DPF)
- ↦ count the number of nanoparticles (PN) per cm³ (#/cm³) emitted by diesel engines
- ↦ assess the vehicle’s actual pollution level.
Choosing a particle analyzer for use in MOT centers
Unlike consumer particle counters, the PN counter – Particle Number – must meet specific requirements to measure exhaust particles and must comply with automotive standards.
Points to check:
- ↦ equipment compliance
- ↦ results expressed in #/cm³
- ↦ Euro 5 / Euro 6 compatibility
- ↦ technology adapted to exhaust particles
Also make sure that the PN counter:
- ↦ is simple and quick to use
- ↦ can connect to the existing gas analyzer / opacimeter
- ↦ provides a PASS/FAIL result
- ↦ is calibrated according to local standards
CAPELEC solution: the CAP3070 exhaust particle analyzer
Consumables, maintenance, and daily ease of use: impacts on operating costs and productivity
The CAP3070 is designed for productivity and ease of daily use:
- ↦ Fast measurement in about 30 seconds
- ↦ Simple interface and guided procedure
- ↦ Bluetooth communication and control via PC or tablet
- ↦ Integration with existing equipment or standalone use
The CAP3070 PN design keeps the sensor clean and extends its service life :
- ↦ exhaust particles are drawn in by Venturi effect using a clean airflow
- ↦ they are electrostatically charged at the sensor inlet
- ↦ particle concentration is measured as they pass through the sensor

CAPELEC patented direct-flow design
The CAPELEC particle analyzer is also recognized for its reliability:
- ↦ High accuracy and repeatability of the Extended DC Technology
- ↦ Wide dynamic measurement range for more precise results
- ↦ No measurement deviations caused by dilution (CPC Technology)
- ↦ New generation particle sensor

New generation CAPELEC particle sensor
Regulatory compliance
The CAP3070 Particle counter for MOT inspection is used for PN tests in several European countries and approved by METAS, PTB, and NMI.



