Advanced features Chapter 9
Mastersizer 2000 Page 9-5
Advanced result processing
The result of an analysis can be modified by performing a result transformation or
reducing the result range before it is displayed in a graph or table.
Reducing the result range
The standard result range is:
For the Mastersizer 2000 – 0.02 to 2000 microns.
For the Mastersizer 2000E – 0.1 to 1000 microns.
By reducing the result range it may be possible to remove the effects of contami-
nants and bubbles. Contaminants form extra modes or peaks in the result after the
analysis. By reducing the result range, the characteristics of the expected result dis-
tribution are isolated.
An alternative use for reducing the result range is to isolate a mode of the distribu-
tion so that the characteristics of that mode can be obtained separately from the
complete distribution. This is particularly important for users who are also trans-
forming the result, where small modes in the volume distribution, caused by
errors, are magnified and can become dominant when transformed to a number
distribution.
To reduce the result range in an SOP:
1. In the Material tab select the Advanced button in the Result calculation
section.
2. Change the size range by altering the entries in the Include result in size
range box.
To reduce the result range in a manual measurement:
1. Select Measure-Manual.
2. Once the background measurements are complete press the Options button.
3. Select the Material tab.
4. Change the size range by altering the entries in the Include result in size
range box.
5. To remove any result range reduction press the Default button. This will
restore the box to the full range.
MAN0384-1.0 Mastersizer 2000.book Page 5 Tuesday, March 20, 2007 8:56 AM
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