The Charge Aerosol Measurement System (CHARME), offered by CH Technologies and manufactured by Palas GmbH, is an aerosol electrometer capable of measuring particles that are between 2nm and 100 um in size. This device gives concentration information based on the subtle electric charges present around a particle.

It is especially useful with very high number concentrations of nanoparticles because it measures the macroscopic effects of the individual charge on nanoparticles.

  • Reliable current measurement (charge/time) for aerosols
  • Fast measurement (10 Hz) of particle concentration
  • Intuitive operation via touch screen
  • Graphical measured value display of particle concentration and of electrometer current
  • Replaceable gravimetric filter for the on-site correlation of the measured current to the mass concentration
  • Integrated pump
  • Integrated data logger
  • Aerosol research
  • Environmental measurements (high concentrations)
  • Workplace measurements
  • Emission studies
  • Process monitoring
  • Calibration of condensation particle counters (CPC)


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