Particle Characterisation
Beckman Coulter Multisizer Series Coulter Counters
Using the Coulter Principle, also known as Electrical Sensing Zone (ESZ), the Multisizer series instruments
provide size distribution in number, volume and surface area in one measurement, with versatile and
an overall sizing range of 0.4 µm to 1200/1600 µm. Its response is unaffected by particle color, shape,
composition or refractive index. The Coulter Principle is the leading technology in high resolution and
accuracy and it is enhanced even further in the Multisizer instruments by using a Digital Pulse Processor
(DPP). DPP provides ultra-high resolution, multiple channel analysis and accuracy that is unattainable by
other technologies. It all makes the Multisizer 4 indispensable for any research project involving sizing and/
or counting. An equally powerful tool for quality control, the Multisizer 4 provides analysts with an easy-to-
use system that is so technologically advanced, it can solve most particle sizing problems.
Specifications for MultisizerTM 4 COULTER COUNTER ®
- Overall Particle Size Range: 0.4 µm to 1600 µm in diameter.
- Aperture Diameter: 20 µm to 2000 µm apertures (nominal diameters)
- Aperture Range: Total range: 2% to 80% of aperture diameter.
- Standard Range: 2% to 60% of aperture diameter. Extended
- Range: 60% to 80% of aperture diameter
Specifications forMultisizerTM 3 COULTER COUNTER ®
- Overall Particle Size Range: 0.4 µm to 1600 µm in diameter.
- Aperture Diameter: 20 µm to 2000 µm apertures (nominal diameters)
- Aperture Range: Total range: 2% to 80% of aperture diameter.
- Standard Range: 2% to 60% of aperture diameter. Extended
- Range: 60% to 80% of aperture diameter
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