Malvern Mastersizer 3000 Manual

Maintenanc e
74
Introduction and warnings
The topics in this section cover all the user maintenance procedures for the dispersion
units. Do not attempt any maintenance procedure not specified here.
Note: Maintenance procedures for the Mastersizer 3000 optical unit can be
found in the Mastersizer 3000 Basic Guide.
Warnings
General
!
Warning!
The dispersion unit contains no internal serviceable parts. Never attempt to
remove the covers of the optical bench or dispersion unit. Removal of the cov-
ers invalidates the warranty and may expose the user to dangerous laser radi-
ation.
!
Warning!
Failure to follow these guidelines could result in the emission of laser radiation
or exposure to hazardous voltages. Laser radiation can be harmful to the body
and can cause permanent eye damage.
The dispersion units do not contain a laser but are connected to the optical
unit that does.
Maintenance and cleaning
!
Warning!
Before carrying out any maintenance operation, read and observe the Health
and safety warnings listed in the Mastersizer 3000 Basic Guide.

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