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Malvern Mastersizer Mastersizer

MANUFACTURER Malvern Instruments (manufacturer's website)
MODEL Malvern Mastersizer
AVAILABILITY Official workshop hours are: 9:30 to 12.30 and 13.30 to 16:30 (in practice technicians are often available outside of these times)
CONTACT 1 External enquiries: Martine Dobson - Funding, Development & Support
CONTACT 2 Internal enquiries: Tony Dickson - Principal Technician
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SITE Harris Site

Description

Malvern Mastersizer Mastersizer

The Mastersizer 3000 laser diffraction particle size analyzer delivers rapid, accurate particle size distributions for both wet and dry dispersions with the minimum of effort. Measuring over the nanometer to millimeter particle size ranges, it packs exceptional performance into the smallest of footprints, bringing operator-independent measurements that every user can rely on.

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.

How it works

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.

Images and text courtesy of www.malvern.com

Specification

General

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

Optics

  • 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: 300mm

Detector

  • Arrangement: Log-spaced array
  • Angular range: 0.015 - 144 degrees
  • Alignment: Automatic

Size

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

Software

  • 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

System

  • Power: 100/240 v, 50/60 Hz 50W (no dispersion units connected) 200W maximum (2 dispersion units connected)
  • Humidity: 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: IP41B

Item ID #1508.

Last Updated: 9th November, 2016