Hardware features Chapter 2
Scirocco 2000 Page 2-5
Vacuum switcher box
The vacuum switcher box is a control box used to turn on the primary vacuum unit
for the dry cell and the secondary vacuum unit used for cleaning. The switcher box
is controlled from the software. More details of its features are given below.
Vacuum unit
The vacuum unit removes the sample from the cell exhaust once it has been meas-
ured.
Sample tray area
The sample tray area holds a vibrating tray that holds the sample. Sample feeds
down the sample tray as it is vibrated. This illustration shows the main features:
ill 4942
Sample tray
The sample tray receives the sample to be measured. Three sample trays are availa-
ble for the Scirocco. Each type is individually encoded so that, when it is attached to
the dispersion unit, it is automatically detected and reported in the sample records.
The three tray types are:
General purpose tray – the standard tray provided with the Scirocco
2000, this has an adjustable slit to regulate the flow of sample. This is most
suitable for free-flowing materials and materials having broad size distribu-
tions (greater than 1 to 300 microns) where larger samples need to be
measured to obtain statistical significance.
Micro volume tray – this is designed for pharmaceutical materials where
very little material is available. The smallness of the tray removes the temp-
tation to overload it. The tray has a single slit width which is recorded in
the sample details and in the SOP.
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MAN0386-1.0 Scirocco 2000.book Page 5 Friday, March 16, 2007 4:15 PM
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