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S3500 Particle Size Analyzer

S3500 Particle Size Analyzer

Microtrac | Particle Size Analysis

The Microtrac S3500 is the first particle size analyzer that uses three precisely placed red laser diodes to accurately characterize particles like never before.

The patented Tri-Laser System provides accurate, reliable and repeatable particle size analysis for a diverse range of applications by utilizing the proven theory of Mie compensation for spherical particles and the proprietary principle of Modified Mie calculations for non-spherical particles. The S3500 measures particle size from 0.02 to 2800 microns.


  • Tri–laser, red, multi-detector, multi-angle optical system
  • Algorithms that utilize Mie compensation and Modified Mie calculations for non-spherical particles
  • Measurement capability from 0.02 to 2800 microns
  • Wet and dry measurements
  • Enclosed optical path ensures complete protection of the optical components leading to little or no operator intervention


  • Utilizing three red lasers, increases the range of measurement, giving you the flexibility to conduct analysis on a wide range of samples
  • Proprietary Modified Mie calculations allow users to accurately measure complex particles that other particle analyzer struggle to accurately characterize
  • Seamless transition from wet to dry measurement reduces down time
  • Fixed detectors provide rugged durability and assure proper positioning
  • Small bench footprint reduces demand on valuable laboratory space

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