The Mastersizer 3000 is the latest generation of the world’s most popular particle sizing instrument. Incorporating expert engineering and applications know-how into every stage of its design, it delivers:

  • Class-leading particle sizing performance in a compact footprint.
  • Intuitive software with built-in expertise to ease your workload.
  • Flexible reporting to display your data the way you want it.
  • Rapid and effective wet dispersion.
  • Fast, reliable particle size measurement of fragile and cohesive dry powders.
  • Mastersizer know-how throughout, for results you can rely on.

The Mastersizer 3000 uses the technique of laser diffraction to measure the size of particles. It does this by measuring the intensity of light scattered as a laser beam passes through a dispersed particulate sample. This data is then analyzed to calculate the size of the particles that created the scattering pattern.

A typical system is made up of three main elements:

  • Optical bench - A dispersed sample passes though the measurement area of the optical bench, where a laser beam illuminates the particles. A series of detectors then accurately measure the intensity of light scattered by the particles within the sample for both red and blue light wavelengths and over a wide range of angles.
  • Sample dispersion units (accessories). Sample dispersion is controlled by a range of wet and dry dispersion units. These ensure the particles are delivered to the measurement area of the optical bench at the correct concentration and in a suitable, stable state of dispersion.
  • Instrument software. The Mastersizer 3000 software controls the system during the measurement process and analyzes the scattering data to calculate a particle size distribution. It also provides both instant feedback during method development and expert advice on the quality of the results.


Particle size:
Suspensions, emulsions, dry powders
Laser light scattering
Mie and Fraunhofer scattering
Data acquisition rate:
10 kHz
Typical measurement time:
<10 sec
Dimensions (W, D, H):
690mm x 300mm x 450mm
30 kg


Red light source:
Max. 4mW He-Ne, 632.8nm
Blue light source:
Max. 10mW LED, 470nm
Lens arrangement:
Reverse Fourier (convergent beam)
Effective focal length:


Log-spaced array
Angular range:
0.015 - 144 degrees


Particle size:
0.01 - 3500 µm *
Number of size classes:
100 (user adjustable)
Better than 0.6% **
Precision / Repeatability:
Better than 0.5% variation *
Better than 1% variation *


21 CFR part 11:
Enables an operating mode that assists with ER/ES compliance

System compliance

Laser safety:
Class 1, IEC60825-1:2007 and CFR Chapter I: Sub-chapterJ: Part 1040 (CDRH)
Regulatory testing:
RoHS and WEEE compliant CE / FCC compliant Meets requirements of the European Low Voltage directive


100/240 v, 50/60 Hz 50W (no dispersion units connected) 200W maximum (2 dispersion units connected)
80% maximum for temperatures up to 31°C, decreasing linearly to 50% at 40°C. Non condensing.
Operating temperature (°C):
+5°C to +40°C
Product storage temperature:
-20°C to +50°C
Ingress Protection (IP) rating:


Sample and sample preparation dependent.
Accuracy defined for the measurement of monomodal latex standards. This specification accounts for the manufacturer’s uncertainty in the latex size. Sample and sample preparation dependant.
The Mastersizer 3000 optical bench is protected by patents; US6,778,271 and related filings; GB2,340,932; together with patents based on applications WO2013038161, WO2013038160 and WO2013038159. Hydro MV and LV protected by EP1167946A2 and related filings.

Sample dispersion accessories for the Mastersizer 3000

Mastersizer 3000

Wet sample dispersion accessories

Hydro Sight

See your dispersion


The Hydro Sight™ is a revolutionary accessory for the Mastersizer range of instruments providing rapid visualization and assessment of your liquid particle dispersion during a measurement.

More information

Hydro SV

Small volume wet sample dispersion


The Hydro SV is a simple, cost effective liquid dispersion unit designed to enable particle size analysis using small volumes of sample and dispersant.

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Hydro MV

Medium volume automated dispersion unit.


The Hydro MV is medium volume unit for the controlled, automated wet dispersion of samples for particle size analysis. Suitable for both aqueous and non-aqueous applications, it is especially useful when sample size is limited and/or dispersant use must be minimized.

More information

Hydro LV

Large volume wet sample dispersion.


The Hydro LV is an automated large volume unit that controls wet dispersion of materials for particle size analysis. It is especially suitable for applications where the sample size is relatively large or the size distribution is very broad.

More information

Hydro EV

Flexible volume wet dispersion


A unique dip-in wet sample dispersion unit that can be used with standard laboratory glassware. Suitable for a wide variety of dispersant volumes and particle size ranges.

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Hydro SM

Small volume entry level wet dispersion unit


The Hydro SM is a cost effective wet sample dispersion unit designed for measuring samples in non-aqueous dispersants where solvent usage needs to be minimized.

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Mastersizer 3000 Chocosizer

Effective Chocolate production quality control


The goal of chocolate production is to produce a product with a consistent taste and mouthfeel in an economical and efficient way. Control of the cocoa and milk solids particle size and particle size distribution is critical to achieving this objective. The Mastersizer 3000 Chocosizer is designed to support chocolate production and quality control by providing a simple method for fast, reliable chocolate particle size analysis.

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Dry sample dispersion accessories

Aero S

State-of-the-art dry powder dispersion


Setting new standards for dry powder dispersion, the Aero S has been designed from the ground up based upon fundamental powder dispersion theory. The modular design ensures rapid and reproducible dispersion of the widest range of samples from cohesive powders to fragile materials.

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Aero Funnel Sample Feeder

Rapid QC measurements for bulk powder samples


The Aero funnel sample feeder is designed to help users achieve rapid, reproducible bulk dry powder particle size measurements by allowing samples to be added directly to the Aero S and Aero M dry powder dispersion units without opening the dispersion unit lid. This speeds up and simplifies the process of introducing samples for analysis, decreasing the time required to obtain results.

More information

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


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
Telephone / Email Support
Priority Response
Emergency Breakdown visits*
Parts Included
Technical & Software Support
IQ/OQ (Pharma)***

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