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GRIMM Aerosol Technik - Model EDM 280 -Approved PM10 & PM2.5 monitor

FromGRIMM Aerosol Technik GmbH & Co. KG - a member of the Durag Group

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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

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Real-time, accurate air quality monitoring
Delivers complete and precise detection without under- or overestimation. Certified for 1-minute measurement intervals – unique in its class. Aerodynamically focused detection volume compliant with ISO 21501-1, ensuring precise measurements without border zone errors; total aerosol flow analyzed in optical cell.
Certified for regulatory air quality monitoring
QAL1-certified (TÜV and MCERTS) for PM10 and PM2.5 measurements in accordance with EN 12341, EN 16450, EN 15267 and VDI 4202-3. Approved by LCSQA for use in regulatory air quality monitoring networks.
Comprehensive, optical particle measurement
Measures the widest range of particle sizes (0.178 to 29.4 μm), including TSP, PM10, PM2.5, PM4, PM1, and PMcoarse. Provides full particle size distribution in 72 size channels
High-precision laser technology
Equipped with a monochromatic laser that minimizes the influence of particle composition, ensuring consistent and reliable results.
Low maintenance, long service life
No consumables required. Durable laser with a lifespan of over 10 years. Internal particle-free purge air system reduces considerably maintenance needs.
NEW: On-site calibration without factory return
The EDM 280 requires no routine adjustments thanks to its drift-free factory-set optical system. Includes optionally a Field Verification and Calibration Kit – with a dual-size aerosol generator for two-point linearity checks – for on-site quality assurance and continuous operation without data loss.
Compact, modular design
19˝ rack design, vibrations resistant and compatible with existing AQMS cabinets or mobile monitoring laboratories, where space might be limited.
Fast and easy installation
Designed for quick setup by a single person in 30 minutes. The analyzer can be removed from the rack cabinet without dismantling the sampling system -simply unlock the connection and release the device.
High compatibility and integration
The EDM 280 offers enhanced integration compatibility with other air quality monitors or air pollution DAHS and reporting software, ensuring seamless incorporation into different AAQMS stations and air quality monitoring networks.

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

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
Certifications
TÜV and MCERTs QAL1 certified, LCSQA approved
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
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
Communication 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, UIDEP 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 % RH
- Air 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 + 24 V 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 °C
- Relative humidity: 100 % (–40 °C) … 30 % (60 °C) or maximum 60 g/m³ absolute humidity
- Ambient pressure: 530 … 1,080 hPa
Conditions (measuring container)
- Temperature: 5 … 40 °C
- Relative 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 mm
- Sampling tube holder: 88.9 x 441 x 156 mm (3.5 x 17.4 x 6.1″)
- Standard sampling tube with sampling head: 1,650 (L until sampling inlet) x Ø45 (tube) / Ø105 mm (Sigma-2-Head)
Weight
- Total: 20.5 kg (5.5 lbs); with meteo sensor 157 L, 2.35 kg (5.2 lbs)
- 19″ spectrometer: 10.45 kg (23 lbs)
- Sampling tube holder: 2.4 kg (5.3 lbs)
- Sampling tube with sampling head: 5.3 kg (11.7 lbs)

Stand-alone, fully air-conditioned weather protection housing, providing space for EDM 280 and other 19″ rack instruments
NEW: Field Calibration Kit EDM 280 for on-site calibration (see image gallery on this product page)