Malvern Mastersizer 3000 User Manual

Chapter 2 Introducing the Mastersizer 3000
Page 2-8 MAN 0474
Optical unit (as described in the next section)
Measures the sample using red light detection.
Dry dispersion unit (in this case the Aero S)
Disperses the sample and transports it to the measurement cell.
Dry cell
Sample flows through the air cell so that it passes through the instrument’s laser
path.
Vacuum unit
Removes the sample from the cell exhaust once it has been measured.
Ancillary switching unit
An external control accessory that is used to switch on the vacuum unit required
for the sample extraction during each measurement.
Computer running the Mastersizer application software (not shown)
Controls both the optical unit and the attached dispersion unit, as well as process-
ing and presenting the measured data.

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