Retsch AS 200 jet, Руководство пользователя

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Operating the Device
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WARNING
W6.0010
Handling of food, pharmaceutical and cosmetic products
Analysed products

Food, pharmaceutical and cosmetic products, which were analysed with
the device must not be consumed, used or circulated.
•
Dispose these substances in accordance with the applicable
regulations.
NOTICE
N12.0007
Range of application of the device
Long-term operation

This laboratory device is designed for eight-hour single-shift operation
with a duty cycle of 30 %.
•
This device may not be used as a production machine nor is it
intended for continuous operation.
NOTICE
N13.0005
Device damage due to liquids
Ingress of liquids into the interior of the device

Mechanical and electronic components are damaged, and the function of
the device is no longer ensured.
•
No wet sieving may be carried out with this device!
6.2 Principle of Operation
With the Air Jet Sieving Machine AS 200 jet only one single test sieve is used per sieving
process. The test sieve itself does not move during the sieving process. The movement of the
sample material on the sieve mesh fabric is achieved by a rotating air jet.
An industrial vacuum cleaner connected to the AS 200 jet generates a negative pressure in the
nozzle chamber by sucking ambient air through a silencer. The air jet generated this way exits
the rotating slotted nozzle at high speed and disperses the resting sample material from below
through the sieve mesh fabric. Above the sieve mesh fabric, the air jet is distributed over the
entire surface of the test sieve and is drawn off through the sieve mesh fabric at low speed. The
fine fraction of the sample material is transported through the sieve meshes and extracted with
the industrial vacuum cleaner. Optionally, the fine fraction can be collected in a cyclone
separator.