| OPERATING PRINCIPLE | Counts individual particles using scattered laser light | |
| PERFORMANCE | |
| PM Range | PM1, PM2.5, PM4 and PM10 | |
| Concentration Range | 0 - 1,000 μg/m3 | |
| Resolution | 0.1μg/m3 (display / serial output) | |
| Sensitivity | 0.5 μm | |
| Accuracy | ± 10%, to calibration aerosol | |
| Flow Rate | 0.1 cfm (2.83 lpm) | |
| Sample Duration | 1 minute | |
| Data storage | 2,500 records | |
| ELECTRICAL | |
| Light Source | Laser Diode, 780 nm, 40 mW typical | |
| AC Adapter/Charger | AC to DC module, 100 – 240 VAC to 8.4 VDC | |
| Battery Type | Li-ion rechargeable Battery | |
| Battery Operating Time | 8 hours continuous operation
24 hour intermittent operation | |
| Battery Recharge Time | 2.5 hours typical | |
| Communications | USB Mini B Type | |
| Certifications | Meets or exceeds CE, ISO, ASTM, and JIS international certifications | |
| INTERFACE | |
| Display | 2-line by 16-character LCD | |
| Controls | 2 button keypad with rotary dial | |
| PHYSICAL | |
| Size | Height: 6.25" (15.9 cm) Width: 3.63" (9.22 cm) Thickness: 2.0" (5.08 cm) | |
| Weight | 1.74 lb (28 oz) (0.79 kg) | |
| ENVIRONMENTAL | |
| Operating Temperature | 0? to +50?C | |
| Storage Temperature | -20? to +60?C | |
| ACCESSORIES | |
| Supplied | Operation Manual
Battery Charger / Adapter
USB Cable
Comet Software | |
| Optional | Carrying Case (P/N 8517)
Protective Boot (P/N 80450)
Zero Filter Kit (P/N 80846)
Flow Meter Kit (P/N 80530) | |
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工作温度：0-50（℃） | 尺寸：159*92.2*50.8（mm） | 重量：0.79（kg） |
电源：100-240v | | |
加工定制：否 | 品牌：美国METONE | 型号：831 |
类型：微电脑激光粉尘仪 | 流量范围：2.83（L/min） | 测量范围：0-1000ug/m3 |
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