Remote airborne particle counter meets ISO 21501 calibration standard

Published: 3-Sep-2008

Designed to meet requirements of the new ISO 21501 calibration standard, the MET ONE 7000 Series remote airborne particle counters offer accurate and reliable continuous particle monitoring for the life science industry.


Manufacturers using cleanrooms classified under ISO 14644 are recommended to use ISO 21501 for calibration of their optical air particle counters. Additional testing required by ISO 21501, such as counting efficiency and sizing resolution, ensures that an ISO 21501 compliant counter identifies the particle size correctly and counts the particles with accuracy and repeatability in a low particle concentration, ultra pure cleanroom environment.

Available in a sensitivity range of 0.3 - 10 µm, and flow rates of 2.83 LPM or 28.3 LPM, the MET ONE 7000 Series is designed to meet the specific needs of cleanroom operations within the pharmaceutical, vaccine, medical implant and equipment manufacturing industries using aseptic and sterile processes.

Able to integrate with a wide choice of communication options, the particle counter has a user notification indicator feature that reduces downtime. An array of mechanical quick-connect installation hardware also reduces downtime related to instrument removal and re-installation during routine calibration and preventative maintenance work.

Built with a sealed stainless-steel enclosure, sealed power, vacuum and communication connectors, and optical components made of and vaporous hydrogen peroxide-compatible material, the MET ONE 7000 series is tolerant to washdown and VHP-based disinfecting processes.

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