Malvern Zetasizer Nano ZS Zen 3600

Uses Brownian motion to measure particle size between 0.3nm to 10μm, as well as zeta potential and molecular weight

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The Malvern Zetasizer Nano ZS Zen 3600 uses dynamic light scattering (DLS) to measure the particle size of dispersed systems. It has a range from sub-nanometre to several milometers in diameter. The Zetasizer system determines the size by first measuring the Brownian motion of the particles in a sample using DLS, then interpreting a size using established theories. For a more in depth explanation of the science behind the method, see pages 20-24 of the user manual.

The instrument is intuitive to use. Samples are placed into a suitable cuvette, or cell, which is then placed into the cell area at the top of the machine. Pressing the illuminated cell access button will open the lid. This will also activate safety interlocks on the laser and electrode to protect the user. The lid is then pushed closed before the measurements take place.

Features of the Malvern Zetasizer Nano ZS Zen 3600:

  • Measurement types: Particle size, molecular weight and zeta potential
  • Size range (diameter): 0.3nm to 10μm
  • Size range for zeta potential (diameter): 3.8nm to 100μm
  • Molecular weight range: 342 Da to 2 x 10^7 Da
  • 4mW 632.8nm ‘red’ laser
  • Includes the Zetasizer Nano optical unit, cells (see video in image gallery), and PC with software.
  • Accessory compatibility (Not included. May be available from the manufacturer. See manual for full details): Narrow band filter, universal dip cell, high concentration cell, MPT-2 titrator and vacuum degasser, high temperature, flow mode option, microheology
  • Simple on/off button with straightforward USB PC connection
  • Illuminated cell access button
  • RS 232 port for easy connection to a range of Malvern accessories (not included)
  • Rear cuvette holder for storage of up to 12 cuvettes


Download User Manual for Malvern Zetasizer Nano ZS Zen 3600

Additional information

Weight20 kg
Dimensions57 × 30 × 24 cm


Zen 3600

Lead Time

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30 days (Richmond Promise)

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