How it works
The GRIMM Aerosol Technik Wide Range Aerosol Spectrometer System (EDM-665) is an Outdoor Wide Range Aerosol Spectrometer System that covers particle sizes ranging from 5 nm to 32 μm. This weather-protected instrument is designed especially for atmospheric monitoring and combines two technologies: SMPS+C for nanoparticles and EDM 180 for micron-sized aerosols.
Applications include atmospheric monitoring of ultrafine particles and dust, source identification, traffic emission monitoring, environmental and climate studies, studies on atmospheric nucleation, and studies on nanoparticle growth, coagulation and transport.
Servicing
Datasheet
Wide Range Aerosol Spectrometer System (Model EDM-665)
Technical Specifications
- Measurement principle: Electrostatic classification with subsequent detection by condensational growth
- Particle size range: Selectable
- M–DMA: 5 – 350 nm
- L–DMA: 10 – 1,094 nm
- Particle size resolution: Stepping mode: 45 – 255 channels
- Scanning mode: 64 channels per decade
- Logarithmic spacing
- Minimum scan time: 150 s
- Max. concentration single count mode: 150,000 particles/cm3
- Max. concentration photometric mode: 107 particles/cm3
- Reproducibility > 95% for single count mode, > 90% for photometric mode
- Working fluid: n-butanol (n-butyl alcohol)
