Met One Instruments (USA)
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| Brand | Met One Instruments (USA) |
|---|---|
| Origin | USA |
| Model | BAM-1020 |
| Certification | EPA EQPM-0798-122 |
| Measurement Principle | Beta Ray Attenuation |
| Range | 0–50 mg/m³ |
| Sampling Method | Impaction with Rotating Glass Impactor |
| Filter Tape | Circular, 30-sample capacity |
| Calibration | Automated zero & span drift correction using reference membrane |
| Data Storage | 182 days internal memory |
| Humidity Control | Integrated heater for RH conditioning |
| Connectivity | RS-232 serial interface |
| Compliance | EPA Reference Method for PM2.5 and PM10 |
| Brand | Met One Instruments (USA) |
|---|---|
| Origin | USA |
| Model | MetOne 804 |
| Instrument Type | Handheld |
| Flow Rate | 0.1 cfm (2.83 L/min) |
| Flow Accuracy | ±5% |
| Timing Accuracy | ±0 s |
| Repeatability | ±5% |
| Size Distribution Error | ±10% |
| Indication Error | ±10% |
| Particle Size Channels | 0.3, 0.5, 0.7, 1.0, 2.5, 5.0, 10.0 µm (user-selectable, 4 active simultaneously) |
| Concentration Limit | 1,000,000 particles/ft³ (105,900 particles/L) |
| Light Source | 780 nm laser diode, 30 mW |
| Power Supply | 7.2 V Li-ion rechargeable battery (30 h intermittent / 8 h continuous) |
| Dimensions | 9.5 × 17.2 × 5.1 cm (W × H × D) |
| Weight | 0.60 kg |
| Operating Temperature | 0–50 °C |
| Storage Temperature | −20–60 °C |
| Data Storage | 2,500 records |
| Display | 2-line × 16-character LCD |
| Interface | USB 2.0 |
| Compliance | ASTM F50, ISO 21501-4, ISO 14644-1, CE, JIS B 9921 |