Malvern Mastersizer 3000 User Manual

Chapter 4 Making measurements
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 Light scattering - the light scattering panel provides a live graph
showing the energy plotted against detector number. This is available as a
live display before the measurement is initiated. Following the measure-
ment this panel contains the data recorded at the measurement time.
 Size distribution - the size distribution graph plots Volume (%)
against Particle Size (μm) - This is blank until the measurement has been
initiated. After a measurement has run, and been selected in the trend
view, the data shown is that gathered at measurement time.
 The light scattering and size distribution views can either be shown
separately or tiled next to each other by selecting the split view button.
5. Click the Start button to Initialise the instrument. If specified in the
SOP settings, the system prompts the user to enter/confirm sample documen-
tation details. Following this stage. the system automatically moves to the
Measure Background stage and measures both the red and blue light values
of the background.
Note
To stop both the SOP and the accessory during a measurement, click the
Abort button . This “all stop” command should only be used when a
problem is suspected - this is because the sample will stop circulating,
which could affect further measurements if the sample is not then refilled.
The split view button is only available with the Mastersizer 3000 /
Mastersizer 3000E with Extended software option.

Malvern Mastersizer 3000 Specifications

General

Measurement principle	Laser diffraction
Blue laser wavelength	470 nm
Sample dispersion options	Wet and dry dispersion
Data acquisition rate	10 kHz
Particle size range	0.01 to 3500 microns
Laser type	He-Ne and solid state
Accuracy	Better than 1%
Repeatability	Better than 0.5%
Technology	Mie and Fraunhofer theories
Sample dispersion units	Hydro MV, Hydro LV, Aero S
Optical model	Mie theory
Power requirements	100-240 V, 50/60 Hz
Detector arrangement	Log-spaced array