Gilson Company, Inc.
GilSonic AutoSiever: GA-6
Page 7
Figure 5.1
Sieve Stack Assembly
Column Lock
Diaphragm
Top Cone
Stack Locking
Bar
Spacers
or
Sieves
Fines Collector
Fines Collector
5.0 PREPARING THE SIEVE STACK ASSEMBLY
PLEASE NOTE: Using brands of sieves, fines collectors
and/or diaphragms other than Gilson may void the
warranty.
A. Select desired sieves for testing. Capacity of Sieve Stack Assem-
bly (Figure 5.1) is seven standard sieves or three precision
sieves. When using fewer sieves, spacers must be added to
maintain correct height of Sieve Stack Assembly. Mixing of
wire-woven and precision sieves in the same stack is not
recommended.
CAUTION: Sieve stack capacity is one when using
precision sieves with openings of 10µm or less. Fine
sieve openings may impede airflow enough to damage
sieves.
B. On a balance sensitive to at least 0.01 gram, determine and
record the tare mass of parts that will contact the sample
during testing:
•
Diaphragm
•
Top Cone
•
Each Sieve
•
Each Spacer
•
Fines Collector
C. Place the Fines Collector into the Fines Collector Holder.
The top ring of the Collector should nest in the recess in the
top ring of the Holder. Attach the Collector by inserting the
keyhole slot in the Collector disc under the screw head in
the Holder.
D. Nest the stack of sieves to be used, finest at the bottom,
coarsest on top, with spacers as necessary to maintain correct
stack height. Fit the stack onto the top of the Fines Collector.
NOTE: Stacking the sieves with the labels facing to the
side will allow unobstructed viewing of the material
during sieving operations.
E. Carefully deposit the sample into the top sieve. Insert the
small end of the Top Cone into the top sieve and place the
Diaphragm on top with the metal ring facing down.
