Malvern Mastersizer 3000 User Manual

Chapter 4 Making measurements
Page 4-40 MAN 0474
Ultrasonication
(Wet dispersion
units only)
Ultrasound can reduce agglomeration, which may help fur-
ther with cleaning. Select whether to Use ultrasound during
the clean sequence or No ultrasound during clean.
Air pressure
(Dry dispersion
units only)
Use the slider bar to set the air pressure at which any
remaining sample is removed (from 0-4 bar, in 0.1 bar incre-
ments).
Feed rate
(Dry dispersion
units only)
Use the slider bar to set the rate at which the remaining sam-
ple is removed - effectively this controls the vibration speed
of the feed tray.
Section/option Description

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