Retsch AS 400 - Manual (Page 9)

06.11.2012
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Retsch GmbH 9
Emissions
Characteristic noise values :
Noise measurement according to DIN 45635-031-01-KL3
The characteristic noise values are determined primarily by the set
amplitude width or sieve plate acceleration, the number of sieves
deployed and the nature of the material to be screened.
Example :
Sound power level L
WA
= 64 dB(A)
Workplace-related emission value L
pAeq
= 58.4 dB(A)
Operating conditions :
Material to be screened = quartz sand, grain size <1mm, 5 sieves
speed = 150 rpm
Maximum loading
Max. quantity of material to be screened = 5 kg,
max. sieve stack mass = 15 kg.
It should be noted that, despite an integrated counterweight, work
cannot be performed at 300 r.p.m. in every case. The large imbal-
ance of, for example, 6x 400-type sieves, can cause the AS400 to
move on the laboratory bench.
At a maximum sieve stack mass of >10 kg, we recommend that
200 r.p.m. should not be exceeded.
Protection systems
IP54 or IP20 around the sieve carrier passage
Equipment dimensions
Height: up to approx. 850 mm, Width: 540 mm, Depth : 507 mm
Weight:
approx. 73 kg without sieve stack and
without sieve clamping device
Base area required
540 mm x 507 mm; no safety clearances required.
The AS400 control can cause major imbalances due to movements of
the material being screened. It must therefore be installed on a suit-
able bench in the laboratory. The net weight of the AS400 control is 73
kg.