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EDM 280
Environmental dust monitor for PM monitoring in ambient air
Latest generation optical aerosol spectrometer with unique detection limit and excellent counting efficiency. Suitable for real-time PM monitoring under any environmental conditions and at all sites.
Functionality: Light scattering at single particles
Features
- Latest generation 19‑inch based optical aerosol spectrometer, unique detection limit and excellent counting efficiency
- TÜV approved according to DIN EN 16450
- Honored at the Reiner-Lemoine-Innovation-Award 2023
- Touch display for intuitive menu control with colorguided status information
- All-weather sampling system, –40 to 60 °C, 60 g/m³ absolute humidity and wind
- Output of six dust mass fractions TSP, PM10, PM4, PM2.5, PM1, PMcoarse, total particle concentration and particle number size distribution
- Aerodynamic aerosol focusing as per ISO 21501‑1, no border zone error, total inlet flow analyzed in optical cell
- PSL traceable particle sizing as per ISO 21501‑1
- Flexible data protocols: GRIMM protocol, Modbus, GESYTEC / Bayern-Hessen protocol
Benefits
- Suitable for PM monitoring under any environmental conditions and at all sites (traffic, urban, background, maritime, mountain and others)
- Robust design, energy efficient and lowest running costs
- Low maintenance due to internal particle-free purge-air circuit to protect the optical components
- Fits in all existing EDM (180, 180+) installations
- Stand-alone option with fully air-conditioned weather protection housing (construction site monitoring, port facilities, etc.)
Applications
- Approved immission measuring device for particulate matter PM10 and PM2.5 in air monitoring networks
- Source apportionment with high time resolution for air pollution control strategies
- Insensitive to vibrations, therefore also suitable for installation in measuring vehicles
Technical Data
- Technical data
| Detection principle | Light scattering at single particles with diode laser; detection volume aerodynamically focused (ISO 21501‑1), no border zone error |
|---|---|
| Measured mass fractions | TSP, PM10, PM4, PM2.5, PM1, PMcoarse |
| Particle size range | 0.178 μm < Do < 29.4 μm (Do = optical latex equivalent diameter) |
| Size channels | 72, channel boundaries equidistant, 32 channels per decade |
| Mass concentration | 0 … 12,000 μg/m³ for PM100 … 5,100 μg/m³ for PM2.5 (with 10 % coincidence error for Arizona Dust A1 ultrafine) |
| Detection limit | 0.1 μg/m³ for PM10 |
| Zero level | ≤ 0.1 μg/m³ |
| Sample volume flow | 1.2 l/min, accuracy ≤ 2 %, constant at the orifice plate by regulation |
| Internal purge air | 0.3 to 0.5 l/min, protection of laser optics, reference air for self-test |
| Storage interval | Selectable, 6 seconds, 1, 5, 10, 15, 30, 60 minutes, daily average value |
| Data interfaces | RS-232 (selectable up to 115,200 baud/s), USB-B, Ethernet, USB flash drive (USB 2.0), data logger |
| Data protocol (ASCII) | GRIMM protocol, Modbus TCP, GESYTEC / Bayern / Hessen Protocol |
| Meteo sensor | Temperature: –50 … 60 °C, ±0.2 °C (–20 … 50 °C), otherwise ±0.5 °C (> –30 °C)Relative humidity: 0 … 100 % RH, ±2 % RHAir pressure: 300 … 1,200 hPa, ±0.5 hPa (0 … 40 °C) |
| Operation | Via touch display or PC via data interface |
| Power supply | Wide range power supply 100 … 240 VAC at 50 … 60 Hz, 4 A |
| Power consumption | Typical 25 W (continental warm)Typical 40 W (tropical humid)Typical 80 W (polar cold)Typical 220 W (maximum equipment, all heaters at maximum power) |
| Conditions (sample air on site) | Temperature: –40 … 60 °CRelative humidity: 100 % (–40 °C) … 30 % (60 °C) or maximum 60 g/m³ absolute humidityAmbient pressure: 530 … 1,080 hPa |
| Conditions (measuring container) | Temperature: 5 … 40 °CRelative humidity: 5 … 90 %, non-condensing |
| Transport and storage | –20 … +50 °C, RH < 95 % (non-condensing) |
| Dimensions (H x W x D) | 19″ spectrometer: 180.5 x 434 x 320 mmSample tube holder: 88.9 x 441 x 156 mmSample tube with sampling head: 1500 (L) x Ø 45 (tube) / Ø 105 mm (Sigma-2 sample inlet) |
| Weight | Total: 20.5 kg (with meteo sensor 157L, 2.35 kg)19″ spectrometer: 10.45 kgSample tube holder: 2.4 kgSample tube with sampling head: 5.3 kg |
Accessories
- Optional
| 199: Stand-alone, fully air-conditioned weather protection housing, providing space for EDM 180+ and other 19″ rack instruments |