To achieve the target amplitude of 3mm (full amplitude), at least 3
sieves, the collecting vessel and sieve cover must be fastened to the
sieve shaker. If fewer sieves are used, it may not be possible to achieve
a target amplitude of 3mm (full amplitude). In this case, the regulation of
the sieve shaker can no longer attain the optimal operating point; the
sieve shaker vibrates at a lower amplitude and frequency. The target
amplitude must in this case be lowered accordingly. Once the machine
has warmed up, the target value can under some circumstances be increased
accordingly.