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Photo-Acoustic Soot Spectrometer, Three Wavelength (PASS-3)
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The PASS-3 is a sensitive, high-resolution, fast-response instrument for measuring the absorption coefficient of aerosol particles. It uses three wavelengths (red, green, and blue) to enhance measurement capabilities.
Download Sales Brochure for Photo-Acoustic Soot Spectrometer, Three Wavelength (PASS-3)
Frequently Asked Questions about the PASS and SP2 instruments
DMT SPECIFICATIONS:
Direct measurement of aerosol light absorption and scattering In situ measurement without filters, continuous and autonomous operation 405, 532 and 781 nm laser wavelengths, simultaneous measurement Absorption measurement at 781 nm is highly specific for black carbon (soot) Scattering measurement responds to all particle types Real-time readout of aerosol mass loading Wide dynamic range, good for ambient or source sampling With 2-second integration, absorption sensitivity to 3.0 Mm-1 (@781nm), 10.0 Mm-1 (@ 532nm and 405nm). Longer integration times yield improved sensitivity Suitable for fixed site, mobile and airborne sampling Power: 115/60 or 220/50, 100 W instrument, 250 W pump Joint development of DMT and Desert Research Institute U.S. Patent # 6,662,627 B2 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 |
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