PEMS for Particle Number Measurement

Your fast track to RDE success



Every segment in the automotive industry is subject to increasingly stringent emission legislation. Regulators have introduced new or revised limits regarding particle emissions and a solid PN (particle number) measurement methodology with a cut-off size approximately down to 10 nm is on the horizon. These regulatory limits have led to greater complexity and increased test effort for powertrain and aftertreatment system development. OEMs need well-engineered portable emission measurement systems (PEMS) to manage this complexity. These systems need to feature a compact, modular and robust design that is also easy to install. Such equipment must also function reliably and precisely, even under the harshest environmental conditions. 

Vehicle development must keep pace with continually evolving emission legislation. Our devices are fully compliant with the latest RDE/ISC requirements regarding hardware, functionality, calibration and PMP correlation. High standards govern technical competency in most countries and industries. Thanks to our commitment to quality, the AVL M.O.V.E PN PEMS product line has secured its place as the market leader for PEMS solutions. 


Electrical Particle Counter Sensor

The AVL M.O.V.E PN PEMS product line employs AVL Electrical Particle Counter (EPC) technology which is AVL’s interpretation of the advanced diffusion charger principle. Our deep understanding of this in-house technology enables us to simplify device operation thus ensuring precise and reproducible testing with several key device features. The state-of-the-art sensor technology enables a continuous zero balance of the electrometer signal and thus the highest possible measured value stability. 

The AVL M.O.V.E PN Advanced product line employs AVL Electrical Particle Counter Advanced (EPCAdvanced) technology which is AVL’s 2nd generation of the EPC Technology. In addition to the known EPC features, the measurement range has been extended both in the saturation and in the noise level, a new advanced signal process algorithm has been implemented to improve TB/CD correlation so as a new state-of-the-art neutralization technology for small highly charged particles.

Technical Details EPC and EPCAdvanced
Measurement range Up to ~ 3 x 107 [#/cm3]

EPCAdvanced: Up to ~ 7 x 107 [#/cm3]
                       Down to ~ 800 [#/cm3]

Measurement rate Up to 10 Hz
Dilution rate EPC: 10:1 fix (LD) or 6:1 fix (HD)
EPCAdvanced: 6:1 fix (LD or HD)
Operating temperature - 10 … + 45 °C
Operating altitude Up to 3,000 m
EPCAdvanced  Cut Off: Selectable (23 nm or 10 nm)



The device is AVL’s all-in-one solution for RDE/ISC requirements and has been designed to be a “black box”. It ensures precise and reproducible emission measurements under real driving conditions. 


Advanced one-click “10 or 23 nm” testing flexibility to cover all possible LD or HD emission market needs 


Outstanding robustness in extended environmental conditions (- 10 °C … + 45 °C, up to 3,000 m) 


Highest long-term sensor stability based on a unique and continuous zero-point monitoring 

Measurement Range 

Wide linear sensor measurement range and low dilution rate 

Low Maintenance

The fluid-free operating measurement principle reduces maintenance effort

ISO 17025 Certification

Top calibration quality standards ensured thanks to ISO 17025 (legislative 23 nm metric)

PN PEMS iS (Light Duty, 23 nm)

Rugged and reliable, the AVL M.O.V.E PN PEMS iS features outstanding robustness against shocks, tilting, vehicle acceleration and extended environmental conditions. Thanks to its wide sensor measurement range and low dilution rate, it delivers the highest level of accuracy and repeatability for 23 nm PN concentration measurements.

PN PEMS iS+ (Heavy Duty, 23 nm)

The AVL M.O.V.E PN PEMS iS+ builds on the success of the industry standard, light-duty PN PEMS iS device. A pre-charger module neutralizes any charged particles that can be produced by heavy-duty diesel engines with high exhaust temperatures and urea injection. The AVL M.O.V.E PN PEMS iS+ ensures the highest reproducibility with a minimum loss of particles. 

PN Advanced LDSel (Light Duty) & PN Advanced HDSel (Heavy Duty)

The new versions of both PN Advanced LDSel and PN Advanced HDSel extend the well-known AVL M.O.V.E platform with a 10 nm particle number measurement system. Tools such as the PN Advanced Selectable product line ensure that our customers meet their obligations worldwide while maintaining their flexibility.

Solution Sheet AVL M.O.V.E PN PEMS iS

RDE-compliant portable emission measurement system for particle number testing light duty.

Solution Sheet AVL M.O.V.E PN PEMS iS+

ISC-compliant portable emission measurement system for particle number testing heavy duty.

Solution Sheet AVL M.O.V.E PN Advanced

Portable emission measurement systems for 10 nm particle number testing light and heavy duty.


Customer Success Story AVL M.O.V.E HMC

Hyundai placed the largest order ever of AVL’s M.O.V.E iS RDE systems.


The in-vehicle measurement platform supporting all global Real Driving Emission (RDE) test requirements. It is a single platform for every on-road application worldwide.


The AVL Particle Counter (APC) product family measures the concentration of solid particles even under severe conditions. The “x” in the name “xApp” refers to the multiple number of extreme applications. 


With built-in and ready to use domain know-how, CONCERTO empowers data-driven engineers to become a strong development influencer.

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