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Mobile PM & SVC monitor AirQualifier EDM 264-SVC

AirQualifier EDM 264-SVC
Mobile PM & SVC monitor

This mobile aerosol spectrometer determines dust mass fractions and particle number size distribution without semi-volatile compounds. It is designed for both short and long-term continuous monitoring of dust pollution and enables real-time data analysis of particle number, dust mass and meteorological data.


Functionality: Light scattering at single particles

  • Sampling probe (SVC) with switchable catalytic stripper for SVC elimination
  • Unique measurement range in one device: TSP, PM10, PM4, PM2.5, PM1, PMcoarse and total counts, inhalable, thoracic, respirable, pm10, pm2.5 and pm1
  • 31 equidistant size channels; PSL traceable particle size distribution
  • High-class data logger; data transmission, remote access and real-time data analysis via mobile radio (LTE)
  • Long term stability and very low zero drift due to purge air for protecting laser and detector
  • Meteorological sensor for P, T, RH, wind speed & direction and precipitation
  • GPS position
  • Suitable for versatile applications
  • All in one solution, ready to use, rugged design
  • Aerodynamic aerosol focusing, total inlet flow (1.2 l/min) analyzed in the optical cell, no border zone error
  • Cost saving, low maintenance
  • Mobile PM monitoring
  • Aerosol science
  • Source apportionment
  • Secondary PM formation by gaseous precursors 
  • VOC and SVOC contribution in dust mass fractions 
  • Technical data
Sampling probe (SVC)µ-Sigma-2 inlet and heated sampling pipe with switchable catalytic stripper for SVC elimination
Detection principleLight scattering at single particles with diode laser
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 range0.25 … 32 μm
Size channels31 equidistant
Particle number concentration0 … 5,300,000 particles/l
Dust mass concentration0 μg/m³ … 100 mg/m³
Reproducibility> 95% at 500 nm meets ISO 21501-1
Time resolution6 s, 31 channels (selectable storage intervals: 6 s, 1 min, 5 min, 10 min, 15 min, 30 min, 1 h)
Sample volume flow rate1.2 l/min ±3% due to self regulation according to ISO 21501-1Automatic altitude correction up to 5,000 m
Internal purge air0.4 l/minProtects laser opticsReference air for self-test
Power supplyIn: 100 … 240 VAC, 47 … 63 Hz, 1.1 A/230 VAC
Power consumptionDepending on version and configuration, Pmax = 200 WEDM 264 SVC Eco: 92 WEDM 264 SVC Pro: 147 W
Data interfacesPro version: Data logger for mobile radio transmission (LTE); USB (type B), Ethernet (TCP-IP), USB flash drive with GRIMM software Eco version: USB (type B), Ethernet (TCP-IP), 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: 85 x 51 x 23 cm (33.5 x 20.0 x 9.1 in)
WeightHousing only: 20 kg (44.1 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%
  • Real-time monitoring of 12 dust mass fractions simultaneously plus particle number size distribution with and without SVC
  • "Full flow analysis" of the entire sample volume
  • No consumables
  • Optional
264-DL: High-class data logger to upgrade Eco version for mobile radio transmission (LTE)
157L: Sensor for humidity, temperature and air pressure
158L: Sensor for humidity, temperature, air pressure, wind speed and direction, requires data logger
159L: Sensor for humidity, temperature, air pressure, wind speed and direction, and precipitation