Portable Airborne Particle Counter - MET ONE 3400+

High-Precision Particle Counter:  Met One 3400+

The Met One 3400+ is an advanced particle counter , designed for environmental and industrial monitoring with high precision and efficiency . Complying with the standards ISO 14644 , ISO 21501-4 , EU GMP Annex 1 and FDA 21 CFR Part 11 , it ensures compliance with regulatory requirements for air quality control in cleanrooms and controlled environments.

Capacity and Precision

The Met One 3400+ performs particle counting in different size ranges, varying from 0.3 µm to 10.0 µm , with an adjustable flow rate of up to 100 LPM (3.53 CFM) [citation:5]. Its counting efficiency is 50% for particles of 0.3 µm and 0.5 µm and 100% for larger particles , ensuring high reliability in results.

Sampling Time and Coincidence Loss

The time required to sample 1,000 liters of air varies according to the flow rate, ranging from 10 to 35.3 minutes . Coincidence loss is minimal, allowing accurate measurements even in high particle concentrations .

Design and Technical Specifications of the MET ONE 3400+

Constructed in 316 stainless steel , the Met One 3400+ has compact dimensions (26.7 cm L x 26.0 cm H x 21.0 cm W) and weighs between 5.6 kg and 6.9 kg , depending on the configuration [citation:2][citation:5]. It operates in temperatures from 0 to 40 °C and relative humidity of 10% to 90% , non-condensing.

Power and Autonomy

Equipped with up to three lithium-ion batteries of 6,900 mAh , the equipment offers long autonomy , with up to 9.75 hours of operation [citation:1][citation:5]. Its main power supply is 24 VDC , enabling continuous use in critical environments.

Interface and Connectivity

The Met One 3400+ features a 10-inch touch-sensitive LCD screen , allowing intuitive operation [citation:5]. It has connectivity via USB 2.0, Ethernet 10/100 BASE-TX and Wi-Fi 802.11 b/g , enabling remote monitoring and integration with data management systems [citation:5].

Configuration and Security

It allows configuration of customized alarms and adjustment of sampling cycles as needed. With laser class 1 rating and IP20 certification, it offers operational safety and protection against dust. The noise level is below 65 dBA , ensuring comfort during use.

Why Choose the MET ONE 3400 as a Particle Counter for Cleanrooms

Accurate and Reliable Measurements:  The MET ONE 3400 ensures precise measurements of airborne particles, guaranteeing compliance with rigorous standards such as ISO 14644 and 21 CFR Part 11 [citation:1][citation:5]. Its advanced technology allows for the detection of even the smallest particles, providing total control over environmental quality.

Advanced Technology for Environmental Monitoring:  Designed for cleanrooms , the MET ONE 3400 uses high-sensitivity sensors to detect and count particles accurately. Its automated system eliminates manual errors and optimizes workflow, ensuring reliable data for audits and validations [citation:2][citation:3].

Continuous Operation without Interruptions:  With hot-swappable batteries, the MET ONE 3400 allows uninterrupted operation, with no need to shut down for battery replacement. This reduces downtime and maintains constant monitoring of the controlled environment [citation:1][citation:5].

Efficient Connectivity and Data Management:  Equipped with Wi-Fi, Ethernet, and USB, the MET ONE 3400 facilitates secure data transmission [citation:1][citation:5]. Furthermore, its Simply Paperless system eliminates paper records, ensuring data integrity as required by the FDA and other regulatory agencies.

Ease of Compliance with Standards:  The MET ONE 3400 assists in compliance with global standards by offering sampling assistants for ISO 14644 and Annex 1 of EU GMP [citation:1]. It simplifies cleanroom validation and classification, ensuring that all requirements are met efficiently.

Precision and Reproducibility in Different Environments:  With high-precision calibration and compliance with ISO 21501-4 , the MET ONE 3400 ensures that measurements are consistent between different devices, making it an essential tool for reliable environmental monitoring [citation:1][citation:2].

Applications of the Met One 3400+ – High-Precision Particle Monitoring

The Met One 3400+ is widely used for particle monitoring in controlled environments , ensuring compliance with standards ISO 14644, ISO 21501-4, EU GMP Annex 1, and FDA 21 CFR Part 11 [citation:1][citation:2][citation:5]. Its applications range from industrial cleanrooms to regulated sectors such as pharmaceutical, hospital, and electronic .

1. Cleanrooms in the Pharmaceutical Industry

The Met One 3400+ is essential for quality control in pharmaceutical production cleanrooms , ensuring that particle counts are within limits set by regulations. Its sampling capacity at high flow rates (up to 100 LPM) allows for rapid detection of air quality variations, ensuring compliance with EU GMP Annex 1 [citation:1][citation:5].

2. Monitoring in Hospitals and Medical Device Industries

Hospital environments and medical device manufacturers require rigorous air quality control to prevent contamination. The Met One 3400+ allows for continuous verification of airborne particles , aiding compliance with standards required by regulatory bodies, such as FDA 21 CFR Part 11 [citation:1][citation:2][citation:5].

3. Production of Electronic Components

The manufacturing of microchips and semiconductors requires an environment with extremely low levels of particulate contamination . The Met One 3400+ precisely monitors ultrafine particles from 0.3 µm , preventing production failures caused by air contamination [citation:1][citation:2].

4. Food and Beverage Industry

In the food sector, air quality directly impacts product safety . The Met One 3400+ assists in verifying air purity in critical processes, ensuring compliance with Good Manufacturing Practice (GMP) standards [citation:2].

5. Research and Development

Laboratories conducting research in nanomaterials, biotechnology, and chemical engineering use the Met One 3400+ to assess the presence of particles that could compromise study results. Its modern interface and advanced connectivity allow for remote monitoring and integration with data analysis software [citation:2][citation:5].

Conclusion

The Met One 3400+ is a versatile and precise piece of equipment, essential for environmental monitoring in critical environments . Its high flow rate, sensitivity for ultrafine particles, and compliance with international standards make it indispensable for industries that require rigorous air quality control [citation:1][citation:2][citation:5].