Aerosol Instrumentation >> Brechtel

Scanning Electrical Mobility Spectrometer (SEMS)

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    Brechtel Scanning Electrical Mobility Spectrometer SEMS
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      Detailed Specs

      • Broad operating pressure range allows use on aircraft – tested to 200 mb
      • Fully automated, unattended operation
      • Monodisperse particle selection and scanning software with on-line inversion
      • Off-line inversion software for data re-processing when needed
      • Configuration, calibration, and characteristic time software utilities

       

      • Selectable particle diameter size range: 0.005—1.0 or 0.01 – 2.0 μm NOTE¹
      • Size resolution (set by Qaer/Qsheath): Variable (28:1 typical)
      • Scan time range: 5 secs to > 1 hour
      • Sheath flow range: 2.5-12 lpm
      • Aerosol sample flow range: 0.1 to 2.0 lpm
      • Particle concentration range: 1-10⁸ /cm³
      • Range of high voltage: 0-6,000 Volts
      • Pre-impactor cut size diameter: 0.5 or 1.0 μm
      • Communications: Ethernet and RS-232
      • CPC working fluid: 1-Butanol
      • Operating Temperature: 15-35°C
      • Operating Pressure: 200-1,000 mb NOTE²
      • Physical size: 48 x 33 x 56 cm
      • Weight : 16 kg
      • Power usage: 80 watts (85 to 230 VAC)

      Notes:

      1. 2 micron sizing with SEMS-DMA-UG option.
      2. Only with SEMS-ExP options.
      Brechtel Scanning Electrical Mobility Spectrometer SEMS