Advantech L3P Series, Operation/Setup Manual, Page: 9 / 47

the Selecting the Sieves for Analysis section above. If spacers are
necessary for operation, they should be placed at the top of the stack.
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,
contact your Advantech Manufacturing representative for the
publication, Test Sieving: Principles and Procedures.
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 Sonic Sifter Separator
determinations. The sample size can be increased until the optimal
combination of sample size, time, and sift amplitude are determined.
Our Customer Service Laboratory can be consulted at no charge for
suggestions on test parameters for powder samples.
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
The diaphragm is placed on top of the top cone with the metal ring
protruding downward. The proper orientation of the diaphragm can be
determined by the word “TOP” stamped on the latex material.
Replacing the Column Lock
Place the column lock onto the sieve stack and press straight down
until the locking arms snap onto the fines collector holder.
Check the Control Panel
As a safeguard, make sure the amplitude control is set at “0” and the
timer is in the “CLOCK” mode or the display is blank before placing the
stack assembly into the test chamber. This is necessary to prevent
damage to the sieves and the integrity of the test sample in the
chamber. If the amplitude had been inadvertently set to the
maximum setting or the timer interrupted mid-cycle, for example, the
sudden impact of the signal from the loudspeaker could damage the
sieves or compromise your test sample.