Aerosol Instrumentation >> Droplet Measurement Technologies

Single Particle Soot Photometer (SP2)

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    Droplet Measurement Technologies Single Particle Soot Photometer SP2
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      Detailed Specs

      • 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 RH: 0 – 100% RH non-condensing
      Droplet Measurement Technologies Single Particle Soot Photometer SP2