Advantech L3P Series, Operation/Setup Manual, Page: 42 / 47

Start by examining the sieve stack assembly. Be sure the following steps have been executed:
•
Hook Fines Collector to bottom of Fines Collector Holder.
•
Assemble your sieve stack with
up to six standard sieves or up
to three precision mesh sieves.
If fewer sieves are used, replace
with Spacers.
•
Add the Top Cone.
• Add the sample.
•
Add the Diaphragm.
• Add the Column Lock and snap
the arms down under the rim of
the Fines Collector Holder.
• Insert the stack assembly into
the test chamber until it hits the
stop at the rear and the table
switch is fully engaged.
•
Release both arms on the
column lock. A firm snapping
sound will be heard.
• Your sieve stack should fit very securely in the test chamber.
If this has not solved the problem, visually inspect the Diaphragm and Fines Collector
for holes or tears and each sieve frame for cracks. Examine the Column Lock
springs. There should be six springs, all oriented vertically.
Lastly, setting the amplitude too high may also contribute to loss of the sample. Refer to question
three for instructions on setting the amplitude.
6. My L3P Sonic Sifter does not turn on or will run for a short time, then stop? What is
happening?
The stack assembly must be fully inserted into the test chamber and locked in place by releasing the
Column Lock arms. Please refer to question five for instructions on properly assembling and
inserting the sieve stack assembly. If the column lock is not released, the stack is able to vibrate out
of position, releasing the table switch and turning the unit off. The table switch must remain fully
engaged in order for the unit to function.
7. Can the L3P Sonic Sifter be operated with the door open?
Yes. However, it is not recommended the door be wide open as it may alter your test results. When
using the L3-N8 Horizontal Pulse Accessory , however, it is necessary to leave the door open just
enough to allow the cord to pass under the door.
8. Why does the L3P Sonic Sifter have a light inside?
The light allows the user the ability to set the proper amplitude. The sieves were designed with clear
acrylic frames so sample media can be viewed while the test is running. The appropriate amplitude
has been achieved when the largest particles of the sample are observed rolling on the sieve surface
and none arc higher than half the height of the sieve frame. Particles that are arcing too high will be
forced back into the sieve above, thereby altering the test results.