Met One A2408

The Met One A2408 is a laser particle counter engineered for laboratory and cleanroom monitoring. It measures airborne particle concentrations across configurable size channels from 0.5 to 10.0 microns, delivering precise contamination control data in counts/ft³ and counts/m³. The instrument combines a long-life laser diode light source with electronic flow control, internal data storage, and optional connectivity for real-time monitoring and ISO 14644-1 compliance calculations.

– Technical Specifications

• Particle Size Channels: 0.5, 1.0, 2.0, 3.0, 5.0, 10.0 microns (configurable)
• Flow Rate: 1.0 CFM (28.3 LPM) ±10%, electronically monitored and regulated
• Zero Count Rate: Less than 1 count every 5 minutes
• Coincidence Loss: Less than 5% at 400,000 counts/ft³
• Light Source: Laser diode with MTTF ≥10 years
• Display: Red LED, 7-digit readout
• Data Storage: 400 samples (internal memory)
• Sample Time: Adjustable 1 second to 24 hours
• Alarm Threshold: 0 to 9,999,999 counts (user-configurable)
• Power Input: 115 VAC, 110 W, 4 A draw
• Dimensions: 28.4 × 15.2 × 45.7 cm; Weight: 10.9 kg
• Operating Temperature: 12 to 29°C (55 to 84°F)
• Operating Humidity: 20 to 95% RH, non-condensing
• Storage Temperature: -23 to 70°C (-10 to 160°F)
• Storage Humidity: Up to 98% RH, non-condensing

– Key Features

• Electronic flow control with rear panel adjustment
• RS-232/RS-485 serial interface for remote data transmission
• Built-in thermal printer (standard configurations)
• ISO 14644-1 statistical calculations: mean, standard deviation, standard error, upper control limit
• Location labeling (0–999) for multi-point surveys
• Particle Vision® PortAll™ software support for offline analysis

– Typical Applications

• Cleanroom classification and monitoring
• Pharmaceutical and semiconductor manufacturing environments
• Filter integrity testing and validation
• Environmental and indoor air quality assessment

– Compatibility & Integration

Optional accessories include filter-scanning probe, 32-point manifold (Met One 2432), and humidity/temperature sensor. Multiple voltage configurations available (100, 115, 230 VAC variants).