Retsch AS 200 User Manual download pdf (Page 24)

31.07.2012  Retsch GmbH 24

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.

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Retsch AS 200 User Manual Page 24