21.11.2001
Retsch GmbH
29
Doc. No E98.014-016.9999 A
Explanations of the loading charts
The series AS200 analytical sieving machines are
resonance-type units; the vibration heights (twice the
amplitude) will depend on the loading in the sieve
carrier.
Here the masses which are joined solidly with the sieve
carrier – those in the collector bottom and the sieve
clamping units – play a primary part. The mass of the
product being handled is of subordinate importance and
is thus not taken into account when calculating the
loading capacity.
Once you have determined the mass of your sieve stack
(collector bottom and sieve) you can refer to the appro-
priate chart (see pages 28 and 30) to read the vibration
height which can be achieved.
When using the
comfort
clamping unit, its high intrinsic
weight will naturally impart to your sieving machine
different operating characteristics than you will find with
the
standard
sieve clamping unit.
Refer to the charts on pages 28 and 30 and the following ex-
amples.
The lower loading capacities for the 60 Hz model when
compared with the 50 Hz model are due to physical
factors.
Utilizing a supplementary mass (available as an acces-
sory component) will make it possible to extend satis-
factorily the working range for sieve configurations with
a small number of sieves and consequently with a low
sieve stack mass. This also applies to the 60 Hz models.
Example 1 :
* You are working with the AS200, 110V-60 Hz model
* The mass of the sieve stack (base pan and sieves) amounts
to 1500 g.
* You are working with the
standard
sieve clamping unit
The solid line curve shown in the chart applies
The vibration height which can be achieved with your
machine, under these conditions, is approx. 0.7 mm.
