Mastersizer 2000

Years of proven performance.

An instrument with a proven history over more than a decade as the world’s most widely used particle sizing instrument, the Mastersizer 2000 is still regarded as one of the most flexible and user friendly particle sizing instruments available.

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Overview
How it works
Specification
Accessories

Overview

The Mastersizer 2000 particle size analyzer has set the standard for simple, straightforward operation. Modular in design, it has a wide range of automated sample dispersion units for the measurement of wet and dry samples. These are controlled through SOPs, providing ease of method development and transfer.

Broad particle size range suitable for many different applications.
Wide range of sample dispersion options for emulsions, suspensions and dry powders.
Fully automated simple SOP operation for ease of use and method transfer.
Full validation documentation available including compliance with 21 CFR Part 11.
Backed up by extensive applications knowledge across many different industries.

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How it works

The Mastersizer 2000 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 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 2000 software controls the system during the measurement process and analyzes the scattering data to calculate a particle size distribution.

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Specification

General
Principle:: Laser light scattering.
Analysis:: Mie and Fraunhofer scattering.
Data acquisition rate:: 1 kHz
Optics
Red light source:: Max. 4mW He-Ne, 632.8nm
Blue light source:: Max. 0.3mW LED, 470nm
Lens arrangement:: Reverse Fourier (convergent beam)
Particle size
Size range:: 0.02 - 2000 µm *
Accuracy:: Better than 1% (polydisperse standard) **
Reproducibility:: Better than 1% variation (polydisperse standard)
Software
21 CFR part 11:: Enables an operating mode that assists
with ER/ES compliance
System
Dimensions:: 1293mm x 255mm x 375mm (LxWxH)
Mass:: 31 kg
Supply voltage:: 100/240 v, 50/60 Hz
Computer
Computer interface:: At least 1 RS232 port required
Operating system:: Windows 7 Professional (32 bit), Windows VISTA
Business Edition, Windows XP Professional (Service
Pack 2 or higher). Although the software has been
tested using Windows 2000, Windows Vista Business
Edition, and Windows 7 Professional, Windows XP
Professional is still the preferred operating system.
Minimum hardware specification:: IBM compatible P4 1.8GHz, 512MB RAM
(1GB recommended for Windows XP and 2GB for
Windows VISTA / Windows 7), 80GB hard drive,
CD-ROM, 1024 x 768 resolution SVGA screen,
1 free Serial RS232 Port (9 pin D-type).
150MB of free hard disk space is required to
operate the software.
Notes
: * Sample and sample preparation dependent.
: ** Accuracy defined for the recovery of the mean size
of a narrow log-normal distribution. Sample and
sample preparation dependant.