HTabsOverviewThe SP2 is Droplet’s premier instrument for direct measurement of black carbon in individual aerosol particles. The SP2 delivers unmatched detail about black carbon particles, including mass, size, heat of vaporization, and coating – critical information for characterization of pollution sources, accurate description of optical properties, and prediction of health effects. Key Features Single particle detection Enhance model effectiveness by capturing variances in black carbon make-up with single particle detection. Laser-induced particle incandescence Measure black carbon independently of particle mixing state with Nd:YAG intracavity laser-induced particle incandescence (LII). Full particle characterization Get full characterization of each individual black carbon particle (mass, size, heat of vaporization, and coating) with simultaneous measurement of incandescence and light scattering. Detections below 10ng/m3 Detect black carbon at concentrations below 10 ng/m3 with dual gain stages – enabling full characterization in the cleanest environments. Virtual instrument panel Control the instrument, display data, and log data with UI software and a user-friendly virtual instrument panel. Advanced data analysis & reports Perform advanced data analysis and create journal-quality reports with a comprehensive toolkit. SP2-D Brochure.pdf SpecificationSpecification: Parameter Specification Measured Parameters Single-particle laser incandescence Single-particle light scattering Auxiliary Parameters Temperature Pressure Derived Parameters BC mass distribution as function of particle diameter Particle number distribution as a function of particle size Maximum Data Acquisition Rate 0 – 12,500 particles/cm3 at 120 vccm (0 - 25,000 particles/sec; concentrations can basically increase until particles become coincident) Particle Size Range Scattering signal: 200 – 430 nm diameter (this range encompasses the accumulation mode of most particles, i.e. range where most mass is found). Incandescent signal: depends on particle density, but 70 – 500 nm mass-equivalent diameter assuming a black carbon density of 1.8 g/cm3 Aerosol Medium Air, 0 - 40 °C (32 - 104 °F) Lasers Nd:YAG Laser: 1064 nm, 3 MW/cm2 intracavity circulating power Pump Laser: 808 nm, 4 W Sample Flow 30 – 180 volumetric cm3/minute (typically 120) Flow Control Electronic flow control with a laminar flow element (LFE) and a solenoid valve Pump Two single-head diaphragm pumps encased in a box Minimum Black Carbon Detection Limit 10 ng/m3 0.3 fg/particle Front Panel Display System power switch 2 USB 2.0 ports 1/8 in. Swagelok® sample inlet Laser ON/OFF indicator light Rear Panel Connections Keyboard port Mouse port VGA and HDMI monitor ports Ethernet port 2 RS-232 communications ports 4 USB 2.0 ports eSATA port ¼ in. Swagelok® purge line ¼ in. Swagelok® exhaust line Exhaust vents System and pump power connections Computer System On-board Intel®Core™ i7 CPU 8 GB RAM 750 GB hard drive for data storage NI PCI-6133 DAQ interface card NI PCI-6259 housekeeping data card User interface via standard keyboard, mouse, and 19” monitor (included) Data Storage Capacity Depends on number of particles; at a concentration of 1,000 #/cm3 and a standard flow rate of 120 volumetric cm3 /minute, the SP2 computer has the capacity to store 56 hours of continuous data Communications Output Gigabyte Ethernet interfaced through an Intel® PC82573V PCIe GbE controller Power Requirements SP2: Universal Voltage External Pump: 30 W Dimensions SP2: 48 cm W x 61 cm L x 26 cm H Pump: 20 cm W x 25 cm L x 10 cm H 19" Monitor: 37 cm W x 22 cm L x 39 cm H Weight SP2: 26.1 kg Pump: 3.4 kg 19" Monitor: 3 kg Environmental Operating Conditions Temperature: 0 – 40°C (32 – 104 °F) RH: 0 – 100% RH non-condensing Further InfoDocuments: SP2-D Brochure.pdf
