PHOTO-ACOUSTIC SOOT SPECTROMETER,
SINGLE-WAVELENGTH (PASS-1)

SPECIFICATIONS:

• Direct measurement of aerosol light absorption and scattering
• In situ measurement, no filters, unattended, continuous operation
• Absorption measurement is highly specific for black carbon (soot)
• Scattering measurement responds to all particle types
• 781 nm laser wavelength, other wavelengths by special order
• Real-time readout of aerosol mass loading
• Very wide dynamic range, good for ambient or source sampling
• Sensitivity to 50 ng/m3, 1 sec integration, as black carbon in diesel exhaust. Longer integration times for improved sensitivity
• Suitable for fixed site, mobile and airborne sampling
• Power: 115/60 or 220/50, 50W instrument, 250W pump
• Weight: 25 kg excluding pump
• Multiple wavelength instrument under development
• Joint development of Desert Research Institute and DMT
• System includes analytical spectrometer, internal data system computer, real-time recording and playback software, shipping case, one day of training at DMT's facility, operations manual, and one-year warranty. Installation and training at customer's site available