Advantech VariSifter VS1000, Operation/Setup Manual

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Performing the Analysis
The following steps constitute a typical analysis with the VariSifter™
Sonic Separator:
Weighing the Parts
Weigh and record the tare weights of the diaphragm, top cone,
spacers, sieves, and fines collector.
Installing the Fines Collector
Install the fines collector in the fines collector holder. Fasten the
round metal plate at the bottom of the fines collector to the fines
collector holder by sliding the keyhole slot in the fines collector over
the fastener mounted in the fines collector holder base.
Assembling the Sieve Stack
Assemble the sieve stack with the coarsest sieve on the top of the
stack and finest sieve at the bottom. If fewer than six (6) standard
series or three (3) precision electroformed sieves are used, add
spacers to the top of the stack to fill out the proper stack height as
described in the Selecting the Sieves for Analysis section above.
Introducing the Powder
Discussion of the proper methods of extracting gross samples and
preparing test samples for analysis is far too complex to be dealt with
here. For more information on sample extraction and preparation,
please refer to the publication, Test Sieving: Principles and Procedures,
toward the back of this manual.
A good rule of thumb is to use the smallest sample size possible that is
still representative of the lot from which it was extracted. Sample
sizes of 1 gram are a good starting point for VariSifter™
determinations. The sample size can be increased until the optimal
combination of sample size, time, sift amplitude and frequency are
determined.
Select a proper mass of powder to be tested. When sieving materials
larger than 38 µm; do not exceed 20g. When sieving materials
smaller than 38µm, do not exceed 10g. Weigh and record the mass of
the powder sample. Place the powder sample on the top sieve in the
stack.
Installing the Diaphragm
Place the diaphragm on top cone with the metal ring protruding
downward. When properly orientated, the word “TOP” will show on
the latex material.