Streamlining Sample Analysis with the Zetasizer Sample Assistant

Enhance your system efficiency with the Sample Assistant, a revolutionary addition to every Zetasizer Advance system. This accessory eliminates the need for manual sample changes, freeing up the operator.

Users can expect the same high-quality data and adaptability from their Zetasizer Advance but with increased efficiency.

Features and Benefits

Zetasizer Sample Assistant is beneficial in the following ways:

  • Enhances system efficiency by reducing the amount of time lost between samples.
  • More effective sample management without sacrificing the accuracy of the data.
  • The Sample Assistant seamlessly integrates with any existing methods to simplify method transfer. If you need a new method, you can create it as usual in the Method Builder.
  • Use different procedures, even on the same sample tray.
  • The straightforward procedure helps users through maintenance with ease.


  • Baseboard: Everything has its place on the baseboard: the instrument, co-bot, and storage.
  • Bespoke grippers: Nimble and precise: allows the Assistant to hold your samples securely.
  • Co-bot: Works safely around people. Changes samples autonomously with smooth and precise movements.
  • Sample trays: Three types of trays are available, all of which support Standard and Universal sizing cells and Zeta cells.
  • Space for your Zetasizer: Holds your Zetasizer in the correct position for the co‑bot, allowing walk-up use as and when it is needed.
  • Tool holder: Stores datum tools and cell adapters securely; ready for when the Assistant requires them.
  • Tray bays: Hold any tray in a configuration that works for you. Trays can be held in up to six different positions.

Tray Bay Options

  • Standard Tray: Up to 24 cuvettes can be held on the standard tray when samples are supplied in 10×10 mm cuvettes, such as the disposable DTS0012 cuvettes.
  • Zeta Cell Tray: Up to 12 Zeta capillary cells, such as DTS1070, can be placed in the proper orientation on the zeta cell tray.
  • Universal Cell Tray: The universal cell tray preserves the plan geometry of ANSI/SLAS 96-well plates and can accommodate up to 96 of our universal disposable sizing cells, improving compatibility with multi-pipettes and fluid handling systems.

Providing Operator Flexibility

The Zetasizer stands out for its comprehensive design. Every component, from the instrument to the sample cells, is engineered to deliver superior data quality. But what was missing?

Up until now, operating the device and achieving that unmatched data quality required users to be there at all times. Thanks to the Sample Assistant, users can now obtain the same high-quality data without the need to attend the instrument, having the chance to do other tasks while the Assistant is dealing with the samples.

The Sample Assistant addresses two key issues: it ensures reliable, high-quality sample data and eliminates the need to physically monitor the equipment. Moreover, it is simple to implement, requiring no changes to the instrument, no downtime for cleaning between samples, and no risk of cross-contamination.

Improve Utilization

  • Reduces the time taken between samples. Sample Assistant is always prepared.
  • Extends the week or workday. Users can always leave their Zetasizer with Sample Assistant running unattended.
  • Minimizes the amount of time spent cleaning flow cells between samples.

Operates Safely

  • Works around the user, detecting obstacles and stopping safely.
  • It makes it easy to recover from a system failure: the data is protected, and the last known state is retained.


General Specification. Source: Malvern Panalytical Ltd

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Weight Without Zetasizer: 45 kg
With Zetasizer: 65 kg
Dimensions (L x W x H) 600 x 900 x 734 mm
Power 110 – 240 V AC, 50/60 Hz
Via Ethernet
(USB – Ethernet converter supplied)


Configuration and Accessories. Source: Malvern Panalytical Ltd

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Zetasizer Sample Assistant includes: baseboard, stands, 2 x tray holders, 1 x standard tray, 1 x Zeta cell tray, tool holder with datum tool, tray datum tool and all fixings
Universal Sizing
Cell kit
1 x tray holder, 1 x Universal Cell Tray, 2 x Universal Cells, Cell Sealing Jig, 1 x pack cell sealing film (25 sheets)
Zeta cell tray Cell tray to hold DTS1070 cells
Standard Cell tray Cell tray to hold standard 10x10 mm cuvettes
Universal Cell Tray 96-position cell tray
Tray holder Additional tray holder with fixings

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