DRI 2015 Series 2

The DRI 2015 Series 2 Multiwavelength Thermal/Optical Carbon OC/EC Analyzer enhances the widely-used DRI 2001 and DRI 2015 systems for quantifying organic carbon (OC), elemental carbon (EC, also termed Black Carbon [BC]), and temperature-separated carbon fractions on aerosol filter deposits (Chow et al., 1993). The DRI 2015 Series 2 retains the consistency of OC and EC data with measurements performed on previous models; while reducing costs of supplies and maintenance compared with the DRI 2001. Additionally, it also features CE mark.

DRI 2015 Series 2 replaces the 633 nm optical monitoring that accounts for OC charring with reflected (R) and transmitted (T) intensities at wavelengths of 405, 445, 532, 635, 780, 808, and 980 nm.  The additional optical information can be used to estimate multiwavelength light absorption of the sampled particles, infer the concentration of brown carbon (BrC) in each sample, and further complement the use of carbon fractions in source apportionment studies (Chen et al., 2015; Chow et al., 2015). DRI 2015 Series 2 software includes temperature programs for commonly-used protocols such as IMPROVE_A (Chow et al., 2007; 2011), EUSAAR_2 (Cavalli et al., 2010), and NIOSH (Birch and Cary, 1996; Chow et al., 2001), and it can be programmed to emulate any other protocol. The simultaneous measurement of both R and T at all wavelengths throughout each analysis allows for reproducing any other thermal/optical method and holds potential for better characterizing additional properties of the carbonaceous aerosol.

DRI 2015 Series 2 is CE marked.

The DRI 2015 Series 2 provides laboratory quantitation, and speciation of Organic Carbon, Elemental Carbon and Brown Carbon and is the best instrument for:

• Detailed ambient air quality monitoring
• Climate research
• Public and occupational health study
• Marine and air transport pollution monitoring
• Particulate matter speciation trends
• Particulate matter source apportionment
• Carbonaceous material analysis

• 7λ, 405 - 980 nm
• Multi-wavelength measurement of transmission (T) and reflectance (R) intensities
• Brown Carbon (BrC) characterization and software
• DRI 2015 Series 2 measures reflected (R) and transmitted (T) intensities at wavelengths of 405, 445, 532, 635, 780, 808, and 980 nm. The additional optical information can be used to quantify the brown carbon (BrC) concentration in each sample.
• Autoloader for 50 samples
• High sensitivity (HS) module
• Coupling to mass spectrometer
• New chassis with improved sample and oxygen oven design
• Efficient sample oven cooling system
• New flow manifold design
• New methane heater isolation
• NDIR sensor
• Improved electronics design and additional safety features
• Updated software (improved database manipulation)