U-SMPS

The Palas® Universal Scanning Mobility Particle Sizer (U-SMPS) systems, offered by CH Technologies, consist of a classifier, defined in ISO 15900 as Differential Electrical Mobility Classifier (DEMC), or Differential Mobility Analyzer (DMA), in which aerosol particles are selected according to their electrical mobility and passed to the classifier’s exit.

The selected particles are then counted by a condensation particle counter (for instance, the Palas® UF-CPC or aerosol electrometer, CHARME). The different UF-CPC models available enable optimized single particle counting in various concentration ranges. A well-known and optimized algorithm converts the measured data to yield the particle size distribution.

The U-SMPS is operated through a graphical user interface on a large touch screen. A scan of the particle size distribution can be performed in as few as 30 seconds or in as many as 64 size channels per decade. During a scan, the voltage in the DEMC is varied continuously, not in steps; this results in higher count statistics per size channel. The integrated data logger enables linear and logarithmic display of measurement values and data management on the device itself. The enclosed evaluation software provides sophisticated data evaluation (extensive statistics and averaging) and export possibilities.

  • Aerosol particle size distributions from 4 nm to 1.2 µm
  • Continuous and fast‐scanning operation principle
  • High resolution of up to 64 size channels/decade
  • Can be used for concentrations up to 108 particles/cm3 particles per milliliter
  • Universally connects to DMAs and nanoparticle counters from other manufacturers
  • Easy to read display of measurement values 
  • Graphical User Interface (GUI) with 7‘‘ touch screen
  • Integrated data logger
  • Supports multiple interfaces and remote operation
  • Filter testing
  • Aerosol research
  • Environmental & climate studies
  • Inhalation exposure studies
  • Indoor & workplace air quality measurements
  • U-SMPS 1050
  • U-SMPS 1100 
  • U-SMPS 1200 
  • U-SMPS 2050 
  • U-SMPS 2100 
  • U-SMPS 2200

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