Mastersizer 3000, Malvern Instrument

The Malvern Mastersizer 3000 is a compact optical system that uses laser diffraction to measure particle size distribution for both wet and dry dispersions with minimum effort.

Particle size is measured using the technique of laser diffraction. Samples are dispersed in either a liquid or an air cell. A laser beam passes through the cell and the dispersed particles scatter the light creating a scattering pattern. The optics measure the angles and intensity of the scattered light from which the particle size distribution is calculated using Mie Theory.

The He-Ne 632.8nm laser and a blue solid state light source enable measurements from 10nm to 3500µm.



  • Measurement principle: Laser Diffraction
  • Application: Particle Size
  • Sample type: Dry powders, Suspensions, Colloids, Soils
  • Particle size range: 10nm - 3500µm
  • Typical measurement time: >10sec
  • Accuracy: Better than 0.6% (for polystyrene latex standard)
  • Repeatability: better than 0.5% (for polystyrene latex standard)
  • Two dispersion units: Hydro MV and Aero S
Mastersizer photo_1

Hydro MV

The Hydro MV is a medium volume automated wet dispersion unit.

  • Suitable for both aqueous and non-aqueous applications.
  • Useful when sample size is limited and/or dispersant use must be minimized.
  • 120 ml dispersant volume.
  • In-line sonication for rapid agglomerate dispersion.
  • Software control of all measurement functions, including cleaning.
Hydro MV Photo_1

Aero S:  Dry Dispersion Units

The Aero S is a dry powder disperser. The modular design ensures reproducible dispersion of the widest range of samples from cohesive powders to fragile materials.

  • Measurement of a range of sample volumes.
  • Enclosed cell minimizes user exposure to the sample.
  • Full software control of all measurement functions.
Aero S_Photo_1