Advertisement
For specific sieving procedures, please refer to
Manual.
1.
Can I use one sieve and fill the rest of the stack with spacers?
Yes, a single sieve can be used at a time. Be sure to add spacers at the top of the stack and place the
sieve at the bottom. Please note when using precision mesh sieves, only one sieve may be used at a
time while performing separations of 30 microns and finer.
2.
When would I need a Horizontal Pulse Accessory
While sifting media 45 microns and finer, it may be beneficial to incorporate the
Pulse
Accessory. This accessory replaces one of the standard spacers and adds a horizontal tap from
alternate sides of the sieve stack, aiding in elimination of particle agglomeration. It may also help
with the effects of electrostatic charge.
3.
How do I determine the best amplitude setting for my test?
Always start the test at zero amplitude. Slowly increase the amplitude until the heaviest particles are
rolling on the sieve surface. Media particles should arc no higher than half the height of a standard
sieve therefore never touching the sieve above it. When using precision mesh sieves, media particles
should arc a maximum of ¼" above the wire mesh surface.
affected by not complying with this rule.
4.
How long should I run my test?
Generally, there are industry or "in-house" standards for sieving durations.
determining the optimum test time, please refer to the Recommended Time Intervals section in
Chapter 6: Performing the Sieve Analysis in the
Generally, with the L3P Sonic Sifter, the test is complete when media is no longer filtering into the
next sieve.
and test time for the running of future tests.
5.
The media samples are not staying within the stack assembly. What is happening?
There are a few possible reasons for the sample escaping the stack assembly:
1. The stack may have been improperly assembled and inserted.
2. There may be holes or tears in the fines collector or diaphragm or cracks in the sieve frames.
3. The amplitude may be improperly set.
L3P Sonic Sifter
Frequently Asked Questions
Test Sieving: Principles and Procedures
It is recommended to perform three tests for repeatability, noting the amplitude setting
located in the User's
(L3-N8)
Final test results may be adversely
Test Sieving: Principles and Procedures
L3-N8 Horizontal
For instructions on
manual.
Advertisement
