The Aerocet 531S is a small, handheld, battery operated, and completely portable unit. This unit provides particle counts or mass PM measurements as stored datalogged values, real-time networked data, or printed results.
Six Mass Ranges and Four Particle Sizes
Six important mass size ranges (PM1, PM2.5, PM4, PM7, PM10, and TSP) are displayed in mass mode as well as four popular cumulative particle sizes (> 0.5, 1.0, 5.0 and10.0 microns) in count mode.
Tailored Mass Conversion
The particle counts from eight size ranges are converted to mass using a proprietary algorithm for typical-density aerosols. Accommodation for special particulate with different densities is provided through user–programmable "K-factors."
Flexible Data Interfaces
The Aerocet 531S stores up to 6,257 records. These records can be viewed on the display, or transferred to a computer via USB or RS232. Our included Comet download utility makes file transfers easy. Data files can easily be imported into an Excel® formatted output.
Temperature and Relative Humidity Option
A plug-and-play option that immediately adds ambient temperature and relative humidity capabilities to the displayed and logged data.
Specifications:
| Operating Principle | Counts individual particles using scattered laser light and calculates the equivalent mass concentration using a proprietary algorithm |
| PERFORMANCE | |
| Mass Mode | |
| Mass Concentration Range | PM1, PM2.5, PM4, PM7, PM10, and TSP |
| Concentration Range | 0-1000 μg/m3 |
| Sample Time - Mass Mode | 1 minute |
| Particle Mode | |
| Particle Size Range | Four channels - 0.5 μm, 1 μm, 5 μm and 10 μm |
| Concentration Range | 0-3,000,000 particles per cubic foot (105,900 particles/L) |
| Sample Time - Particle Mode | 1 minute |
| Accuracy | ±10%, to calibration aerosol |
| Sensitivity | 0.5 μm |
| Flow Rate | 0.1 cfm (2.83 LPM) |
| ELECTRICAL | |
| Light Source | Laser diode, 90 mW, 780 nm |
| Power | 7.4V Li-ion battery pack - provides 20 hours of typical intermittent operation, up to 10 hours continuous use |
| AC Adapter/Charger | Li-ion battery charger, 100-240 VAC, 50/60Hz, 0.2A |
| Communications | USB, RS-232 |
| Particle Certifications | Meets or exceeds CE and ISO 21501 |
| Mass Certifications | Requires proper use of appropriate K-factors for material being measured |
| INTERFACE | |
| Display | 16-character LCD x 4-line LCD |
| Keyboard | 7-key membrane type |
| PHYSICAL | |
| Size | Height=6.25" (15.9 cm) Width=4" (10.2 cm) Thickness=2.12" (5.4 cm) |
| Weight | 2 lb (32 oz) (0.9 kg) |
| ENVIRONMENTAL | |
| Operating Temperature | 0° to +50°C |
| Storage Temperature | -20° to +60°C |
| ACCESSORIES | |
| Supplied | Operation Manual Custom Serial Cable USB Cable Communication Software AC Adapter/Battery Charger Isokinetic Sample Probe Carrying Case Zero Particulate Filter |
| Optional | RH & Temperature Probe (Met One Part Number G3120) Flow Meter (Met One Part Number 9801) Portable Printer (Met One Part Number G3115) |
Datasheet