New Zetasizer Advance – DLS for every application – meet the new Zetasizer Family!. Find out more

Find out more

Zetasizer Pro

The new Zetasizer Pro is your go-to instrument to measure a wide range of sample types and concentrations. It offers wide dynamic concentration capability and high sensitivity due to the Non-Invasive Back Scatter (NIBS) optical design. Measurement of particle size, molecular size, electrophoretic mobility, zeta potential and molecular weight can all be performed with ease. 

The Adaptive Correlation feature enhances sample throughput by reducing measurement duration and providing greater sample knowledge. The deep learning-based data quality system gives you the confidence to know your data is the best it can be.  

The optical filter wheel allows measurement of fluorescent samples without impacting overall instrument sensitivity.

Om_logo.png   Works with OmniTrust: Malvern Panalytical's compliance solution for the regulated environment

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To request a quote, more information or download a brochure select an option below.

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User manuals

Software downloads

04 June 2025

4.1.0

ZS Xplorer 4.1.0 release further extends Zetasizer Sample Assistant integration with additional features and quality of life improvements. 

ZS Xplorer 4.1.0 introduces support for sample storage thermoblocks.  


General improvements to Sample Assistant robustness and ability to pause running sessions added. 

4.1.0

24 September 2024

4.0.0

ZS Xplorer 4.0.0 is the first version to support the new Zetasizer Sample Assistant automated particle size and Zeta potential sample changer.  Small updates to Smart Manager components are also included.


Please Note: OmniTrust (regulated environment) users will not be able to access Sample Assistant as the feature does not currently support OmniTrust. 


See SUN for full details.

 

4.0.0

08 December 2023

3.31

Maintenance release, updates to key services and addition of Titration summary data logs.


See SUN for full details.

 

3.31

02 August 2023

3.30

ZS Xplorer version 3.3 extends OmniTrust support to the Studies features of the main application. Previously OmniTrust users were prevented from accessing Studies to prevent un-audited events. From 3.3 OmniTrust users can now access Studies for Molecular Weight and associated parameters with permissions and auditing of events within the Studies features.  


Note that Studies by their nature are intended for advanced users and to be flexible in their analysis. Users not requiring Studies features can still prevent access to these features using permissions in OmniAccess.


Version 3.3 also addresses a few minor bug fixes.


See SUN for full details.

 

3.30

02 May 2023

3.22

ZS Xplorer 3.2.2 has the following updates: 

 

Software re-branded to Malvern Panalytical brand

Minor bug fixes - one of which may have prevented instrument connection

Bug fix for OmniTrust users that meant editing of records was possible, even when user permission for this action was disabled (recommended update for OmniTrust users currently on ZS Xplorer 3.2.1.)

Updated Toluene calibration routine to prevent incorrect reporting of issues with calibration.


See SUN for full details.

3.22

19 December 2022

3.21

ZS Xplorer 3.2.1 adds Smart Instrument enrollment - the first step in bringing Zetasizer into Malvern Panalytical's Smart Manager services.

Several installer improvements have been made to reduce ZS Xplorer requirements around .NET and WebView2 components.

We have also added ability to edit peak thresholds for size measurements and refinements on CSV exporting from parameter tables.


See SUN for full details.

3.21

04 October 2022

3.20

ZS Xplorer version 3.2.0 adds upper and lower display range configuration for Size/MADLS & Particle Concentration measurements.

Introduces Data Quality Advice for MADLS & Particle Concentration measurements.  

Adds further Trend analysis improvements and bug fixes.

Extends Japanese and Chinese localization to Studies and Data Quality Advice.

Adds speed and robustness improvements to Scattering standard measurements.

Other improvements and bug fixes.  

See SUN for full details.

3.20

11 July 2022

3.10

ZS Xplorer version 3.1.0 extends studies and concentration trend measurements to support the Zetasizer Advance Lab models and also adds the capability to perform concentration trends in either back or side scatter on Zetasizer Advance Ultra models.   Concentration trends also now supports setting of measurement temperature and adds display of R2 value to tables and graphs.

Exporting of data to CSV file from graphs and tables in Concentration trends and from Parameter and Statistic tables in Analyze views has been introduced.

Data quality advice for Zeta potential measurements has been further refined to provide users with better diagnosis of sample/measurement issues. 

Exporting a study now provides an option to include the results data for transfer of the complete study between data repositories.

Various bug fixes, see software update notification for details.

3.10

18 May 2022

3.00

ZS Xplorer version 3.0.0 introduces studies and concentration trend measurements for the determination of molecular weight by static light scattering and kD by dynamic light scattering. Note: This first release does not support Zetasizer Lab or OmniTrust users. Auto averaging for Zeta, MADLS and Particle concentration has also been added along with other quality of life features and bug fixes. See SUN for details.

3.00

01 March 2022

2.31

ZS Xplorer version 2.3.1 introduces post-analysis averaging for Zeta, Particle Concentration and MADLS size measurements. Zeta mobility parameters and graphs have

 

been added, as well as a count rate meter and

 

localization for Chinese (Simplified) and Japanese language support.

Important: This version supports OmniTrust 1.4.0; OmniTrust users should upgrade their installation to 1.4 if upgrading to ZS Xplorer 2.3.1.

2.31

17 January 2022

2.30

ZS Xplorer version 2.3.0 introduces post analysis averaging for Zeta, Particle Concentration and MADLS size measurements. Zeta mobility parameters and graphs have also been added, as well as a count rate meter.


Important: This version supports OmniTrust 1.4.0; OmniTrust users should upgrade their installation to 1.4 if upgrading to ZS Xplorer 2.3.0.

details.

2.30

14 October 2021

2.20

  • Maintenance release see Software Update Notification for details.
2.20

08 July 2021

2.10

  • ZS Xplorer 2.1 offers improvements to OmniTrust regulated environment users by providing improved control of methods and provision of a method audit trail. This version also provides improvements by provision of major size distribution percentiles and automatic size averaging function. A critical bug that could  affect zeta potential data for very low scattering samples has also been fixed. See the Software Update Notification for more details.

2.10

25 February 2021

2.01

  • Bug fix: Changing sample details on locked methods
    • Fixed a bug around method permissions for OmniTrust regulated environment users that prevented editing of method sample details.
2.01

23 June 2025

1.7a

OmniTrust software update v1.7a

1.7a

20 July 2023

1.60

OmniAccess   

  • Flexible/configurable roles in Empyrean and Aeris (now aligns with Zetasizer) 
  • Summary of roles/permissions 
  • Default roles for instrument applications 
  • Support for complex domains 
  • Wizard for initial set up and massively improved UI to improve configuration/set up 

OmniTrail  

  • Record Audit trail events viewable in OmniTrail. 
  • Show/compare authorization files 

More information can be found in the Release and Installation Notes.

1.60

16 December 2021

1.40

OmniAccess   

  • Flexible/configurable roles in Empyrean and Aeris (now aligns with Zetasizer) 
  • Summary of roles/permissions 
  • Default roles for instrument applications 
  • Support for complex domains 
  • Wizard for initial set up and massively improved UI to improve configuration/set up 

OmniTrail  

  • Record Audit trail events viewable in OmniTrail. 
  • Show/compare authorization files 

More information can be found in the Release and Installation Notes.

1.40

Accessories

Configure the Zetasizer Pro for your applications and requirements with our range of configuration options:

Accessories

Zetasizer sample assistant

Empowering scientists, one automated test at a time

Significantly improve your system utilization with the Sample Assistant – a new accessory for every Zetasizer Advance system. It frees the operator from manually changing samples. 

The result? The same great data quality and versatility you expect from your Zetasizer Advance with even greater efficiency.

SV-10 viscometer

Viscosity measurement with speed, simplicity and accuracy.

The SV-10 measures viscosity with the accuracy required for dynamic light scattering, for the conversion of diffusion speed to size, and electrophoretic mobility to zeta potential, in an extremely simple and rapid system.

MPT-3 Autotitrator

Automate your pH titrations

The MPT-3 is a cost-effective accessory for the Zetasizer Advance range, designed to automate your Zeta and/or Size vs. pH titrations, helping you understand how your materials behave as a function of pH.    

The zeta potential and/or size of your materials with pH changes can be critical in understanding: 

  • Material stability
  • Agglomeration
  • Flocculation 
  • Point of net-zero charge (isoelectric point)
  • Storage conditions

Cell & cuvette options

Disposable folded capillary cell (DTS1070)

Eliminate sample cross contamination between zeta potential measurements using a completely disposable cell.

The zeta potential of colloids and molecules is extremely sensitive to contamination from components of a previous sample used in a measurement cell. The use of a disposable cell completely eliminates this potential contamination issue.

The folded capillary cell provides the benefits of the accuracy of measurement of a capillary cell with the ease of use of a disposable cell.

Although, disposable, including the electrodes, for low conductivity samples each cell can be used for hundreds of measurements if required.

The cell can be used with the autotitrator, where multiple measurements are routinely done over a wide pH range.

Universal 'dip' cell kit

Reusable solvent resistant cell.

The dip cell is used for the measurement of zeta potential of samples in aqueous and non-aqueous dispersants, and is designed to be cleaned and reused. It is for batch measurements using standard polystyrene or glass cuvettes.

High concentration zeta potential cell kit

Save time and effort by measuring zeta potential with little or no dilution.

The high concentration cell enables the measurement of the zeta potential of samples with little or no dilution in any Zetasizer Advance system that measures zeta potential.

The cell has a flow configuration so can be used for stop-flow size and zeta potential measurements using an MPT-3 autotitrator as well as batch measurements.

12mm square glass cell (PCS8501)

12mm square glass cell (PCS8501)

Glass cuvette for batch measurements.

  • For size and molecular weight measurements
  • Compatible with aqueous and non-aqueous solvents and dispersants
12mm Glass cell (PCS1115)

12mm Glass cell (PCS1115)

Glass cuvette for use with the dip cell.

  • For size and zeta potential measurements using the ‘dip’ cell
  • Compatible with aqueous and non-aqueous solvents and dispersants
Low-volume quartz batch cuvette (ZEN2112)

Low-volume quartz batch cuvette (ZEN2112)

Low-volume quartz batch cuvette for size and molecular weight measurements.

  • Compatible with size and molecular weight measurements with aqueous and non-aqueous solvents and dispersants
  • Minimum sample volume 12 microliters
  • Maximum volume 45 microliters
12mm Square Polystyrene Cuvettes (DTS0012)

12mm Square Polystyrene Cuvettes (DTS0012)

Disposable polystyrene cuvettes.

  • 100 disposable cells complete with 100 stoppers to avoid cross-contamination
  • For size measurements using aqueous dispersants
  • Compatible with zeta potential measurements using the dip cell
Disposable Solvent Resistant Micro Cuvette (ZEN0040)

Disposable Solvent Resistant Micro Cuvette (ZEN0040)

Disposable plastic micro cuvette, for size measurement at 173° (NIBS) optics only.

  • 100 x 40µL cuvettes with 100 caps to avoid cross-contamination
  • Compatible with aqueous samples and a range of other solvents: Acetone, Benzaldehyde, Butanone, Dioxane, DMF, Ethyl acetate, Isopropanol, plus various acids and bases

Events and training

All events

Service and Support

Protect your investment and ensure optimized performance at all times with Malvern Panalytical's service plans.

When you purchase a Malvern Panalytical product we understand that this is just the first stage of a working relationship that will last for the lifetime of the instrument. Depending on your needs, Malvern Panalytical will provide the support for your business.

Help Desk

Training

  • User training events

Software downloads

Malvern Panalytical's service options- choose the right plan for you:

Malvern Panalytical Platinum Plan

For laboratories where maximizing instrument up-time is critical to its daily performance. Our highest level of response and the 'all inclusive' price plan takes care of those unexpected repair bills should the unfortunate occur.

Malvern Panalytical Gold Plan

Enhance your laboratory productivity by maintaining instrument efficiency. Still receive that priority response, combined with specialist technical and software support, we'll keep your instrument performance on track to deliver.

Malvern Panalytical Bronze Visit

For laboratories looking to optimize instrument performance, regular preventative maintenance is essential.

Platinum PlanGold PlanBronze Visit
Annual PM/PV Test
yes
yes
no
Telephone / Email Support
yes
yes
no
Priority Response
yes
yes
no
Emergency Breakdown visits*
yes
yes
no
Parts Included
yes
no
no
Technical & Software Support
yes
yes
yes
IQ/OQ (Pharma)***
yes
yes
yes

*including labour & travel costs ***available at an additional cost

Contact support