As particulate emission legislation gets stricter, the weighing process is getting more and more complex. Many parameters like electrostatic charge, temperature, humidity, pressure, and the resulting buoyancy correction play an important role and operators are challenged with reproducible measurements in the tenth microgram range. Furthermore, both unloaded and loaded filters have to be weighed several times in order to obtain a mean value, so numerous weighing operations are required. This task places a considerable burden on laboratory technicians and entails a relatively high risk of incorrect values being recorded during weighing and when results are being manually transferred.

Efficiency Through Automation
The Filter Weighing Management Software AVL Particle Scale supports the operator during the whole weighing process and automatically transfers data to an emission automation software.
Optimal Climatic Conditions
A Filter Weighing Chamber provides the required climatic conditions for pre- and post-conditioning as well as weighing of filters for particulate sampling as defined by emission regulations.
Ensuring Legislation Compliance
Incorrect readings are ruled out and the reproducibility of the weighing process is maximized, which means that compliance with emission regulations is ensured.
Reliable and Precise Results
Automation of the weighing process helps obtaining a very high reliability and precision of both the weighing itself and provides a traceable documentation.
- Space saving solution for clean room standard 5
- Precise control of constant climatic conditions to comply with current legislations
- Fully automated, movement path and time-optimized weighing process via Filter Weighing Robot
- Intelligent storage management with four filter magazine towers
- Sample filter identification via RFID code with freely configurable information
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HIGHLY PRECISE
Ensure precise results with maximized reproducibility of the weighing process.
FULL TRACEABILITY
Fully traceable filter weighing process thanks to the innovative RFID technology.
MAXIMUM EFFICIENCY
Higher throughput and improved data quality with minimized workload for lab technicians.
AVL Filter Weighing Chamber Compact
The AVL FWC™ Filter Weighing Chamber Compact is a cost-effective and space-saving alternative to a fully air-conditioned cleanroom. It offers the conditions required by legislation for conditioning and weighing filter plates for particle measurement. An optional dew point mirror for moisture determination rounds off the existing functionalities for legally compliant measurement in accordance with EPA 1065.
AVL Filter Weighing Chamber Advanced / EPA 1065
The AVL FWC™ Filter Weighing Chamber Advanced provides the optimal climatic conditions for legally compliant particle measurement in a confined space. It is therefore a cost-effective alternative to an air-conditioned clean room.
The AVL FWC EPA 1065 variant with laminar flow workstation for monitoring temperature, pressure and dew point in the weighing area ensures legally compliant measurement in accordance with EPA 40 CFR Part 1065.
AVL Filter Weighing Robot
The AVL FWR™ Filter Weighing Robot offers the most reliable and precise particulate matter (PM) weighing results via a fully automated filter weighing process. These results are then recorded in a database along with relevant ancillary data, such as temperature and relative humidity.
AVL ParticleScale
AVL ParticleScale fits ideally into the existing AVL automation system environment and leads the operator through the whole particle weighing process. Every filter runs through different states controlled by the AVL Particle Scale, beginning with preconditioning, and ending with the weighing of the loaded filters and its disposal.
Whitepaper Upcoming Emissions Challenges
New vehicle emissions legislations in EU, China, and USA