À Sample area cover
Protective cover over the sample area. Designed to protect the operator from laser
radiation and to keep the amount of background light to a minimum during a
measurement.
#
Warning!
Unless you are performing spray measurements do not attempt to remove the
sample area cover.
Á Beam expander
The beam expander is used to increase the diameter of the laser beam. Once the
laser beam has been expanded it is known as the analyser beam.
'
Note
.
The beam expander is actually part of the transmitter optics but has
been included here for clarity.
 Range lens
The purpose of the range lens is to collect the laser light that has been scattered
from the sample and focus it onto the detector electronics.
Both the Mastersizer X and Mastersizer S have a number of range lenses available,
with each lens covering a different size range of particles. A list of lenses available
and their corresponding size range is given below.
Mastersizer X Mastersizer S
Lens Size range Lens Size range
45mm 0.1 - 80µm 300RF 0.05 - 880µm
100mm 0.5 - 180µm 300mm 0.5 - 880µm
300mm 1.2 - 600µm 1000mm* 4.2 - 3480µm
1000mm* 4.2 - 2000µm
* The 1000mm range lens are available on long bench versions only.
The sample area coremoved for spray measurements. Read the safety manual
before removing the sample area cover.
CHAPTER 2
GETTING STARTED
Page 2.5
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