Chapter 2 Hardware features
Page 2-12 MAN 0386
Scirocco 2000 with hopper
The hopper instrument is a modified version of the Scirocco 2000, specifically
designed for the needs of customers in the cement and bulk chemical industries. Its
features are shown below:
ill 7397
Changes from the standard Scirocco 2000 are:
New lid assembly
This has an integral hopper assembly and an auxiliary vacuum exit.
Hopper assembly
The hopper assembly is in the sample lid that sits above the sample tray. This com-
prises a sample funnel and a cascade assembly:
Sample funnel – two sample funnels which fit into the hopper assembly are
available, with fine or coarse meshes suitable for use with different sizes of
sample.
The sample is placed on a mesh inside the funnel and vibrated by a motor fitted
under the lid, so a steady stream of sample is deposited on the sample tray.
Cascade assembly – this is fitted beneath the funnel. It controls the rate at
which sample is delivered to the sample tray.
As with the sample tray feed rate, the vibration rate of the hopper can be set from
the SOP, allowing different feed rates to be used for different samples.
Auxiliary vacuum port
The auxiliary vacuum port allows a secondary vacuum cleaner to be attached to the
unit in order to remove any excess sample from the sample tray at the end of the
measurement.
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MAN0386-1.0 Scirocco 2000.book Page 12 Friday, March 16, 2007 4:15 PM
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