| Sampling probe (standard) | µ-Sigma-2 inlet and heated sampling pipe |
| Detection principle | Light scattering at single particles with diode laser |
| Output | TSP, PM10, PM4, PM2.5, PM1, PMcoarse and total counts Inhalable, thoracic, respirable, pm10, pm2.5 and pm1 Number concentration and size distribution GPS position, meteorological data |
| Particle size range | 0.25 … 32 μm |
| Size channels | 31 equidistant |
| Particle number concentration | 0 … 5,300,000 particles/liter |
| Dust mass concentration | 0 μg/m³ … 100 mg/m³ |
| Reproducibility | More than 95% at 500 nm meets ISO 21501-1 |
| Time resolution | 6 s, 31 channels (selectable storage intervals: 6 s, 1 min, 5 min, 10 min, 15 min, 30 min, 1 h) |
| Sample volume flow rate | 1.2 l/min ±3% due to self regulation according to ISO 21501-1Automatic altitude correction up to 5,000 m |
| Internal purge air | 0.4 l/minProtects laser opticsReference air for self-test |
| Power supply | In: 100 … 240 VAC, 47 … 63 Hz, 1.1 A/230 VAC |
| Power consumption | Depending on version and configuration, Pmax = 200 WEDM 264 Eco: 42 WEDM 264 Pro: 97 W |
| Data interfaces | Pro version: Data logger for radio transmission (LTE); USB (type B), Ethernet (TCP-IP), Modbus, USB flash drive with GRIMM softwareEco version: USB (type B), Ethernet (TCP-IP), Modbus, USB flash drive with GRIMM software |
| Dimensions (H x W x D) | Housing only: 44 x 45 x 21 (17.3 x 17.7 x 8.3 in)With meteo sensor and sampling probe: 73 x 51 x 23 cm (28.7 x 20.0 x 9.1 in) |
| Weight | Housing only: 10 kg (22.0 lbs)With meteo sensor and sampling probe: 15 kg (33.1 lbs) |
| Operating conditions | -20 … +40 °C (-4 … 104 °F)RH < 95% non condensing533 … 1133 mbar |
| Transport and storage | -20 … +50 °C (-4 … 122 °F)RH < 95% |
