Retsch AS 450 User manual

© Retsch GmbH, 42781 Haan, Retsch-Allee 1-5, Germany | 14.09.2016 Version 0002
Manual
Vibratory Sieve Shaker AS450 basic
Translation

2
Copyright
© Copyright by
Retsch GmbH
Retsch-Allee 1-5
42781 Haan
Germany

3
Table of Contents
1Notes on the Manual ............................................................................................................................. 6
1.1 Explanations of the Safety Instructions ............................................................................................. 7
1.2 General Safety Instructions ............................................................................................................... 8
1.3 Repairs............................................................................................................................................... 9
2Confirmation ........................................................................................................................................ 10
3Technical Data ..................................................................................................................................... 11
3.1 Use of the Device for the Intended Purpose.................................................................................... 11
3.2 Emissions......................................................................................................................................... 12
3.3 Maximum Load ................................................................................................................................ 13
3.4 Receptacle Volume.......................................................................................................................... 13
3.5 Feed Grain Size............................................................................................................................... 13
3.6 Degree of Protection........................................................................................................................ 14
3.7 Dimensions and Weight................................................................................................................... 14
3.8 Required Floor Space...................................................................................................................... 14
3.9 Rated Power.................................................................................................................................... 14
4Packaging, Transport and Installation .............................................................................................. 15
4.1 Packaging........................................................................................................................................ 15
4.2 Transport.......................................................................................................................................... 15
4.3 Temperature fluctuations and condensed water ............................................................................. 15
4.4 Conditions for the Installation Site................................................................................................... 15
4.5 Installation of the Device.................................................................................................................. 16
4.6 Insert tensioning rod ........................................................................................................................ 17
4.7 Connect the control unit................................................................................................................... 18
4.8 Wall mounting and bench arrangement of the control unit.............................................................. 19
4.9 Electrical Connection....................................................................................................................... 19
4.10 Type Plate Description..................................................................................................................... 20
5Operating the Device .......................................................................................................................... 21
5.1 Views of the Instrument................................................................................................................... 21
5.2 Overview table of the parts of the device ........................................................................................ 22
5.3 Operating elements and displays .................................................................................................... 23
5.4 Overview Table of the Operating Elements and the Display........................................................... 23
5.5 Inserting and Clamping the Test Sieves.......................................................................................... 24
5.6 Operating the Device....................................................................................................................... 25
5.7 Switching On and Off....................................................................................................................... 26
5.8 Starting and stopping....................................................................................................................... 26
5.8.1 Starting......................................................................................................................................... 26
5.8.2 Stopping....................................................................................................................................... 26
5.9 Setting the sieve values................................................................................................................... 27
5.9.1 Timer............................................................................................................................................ 27
5.9.2 Amplitude..................................................................................................................................... 27
5.9.3 Interval......................................................................................................................................... 28
6Wet sieving........................................................................................................................................... 28
6.1.1.1................................................................................................................................................... 29
6.2 Required accessories ...................................................................................................................... 29
6.2.1 Preparation for wet sieving .......................................................................................................... 29

4
6.2.2 Carrying out wet sieving .............................................................................................................. 30
7Test Sieves........................................................................................................................................... 31
7.1 Certificate......................................................................................................................................... 31
7.2 Calibration Service........................................................................................................................... 32
7.3 Sieving Aids..................................................................................................................................... 32
8Cleaning and service .......................................................................................................................... 33
8.1 Cleaning........................................................................................................................................... 33
8.1.1 Cleaning of Test Sieves............................................................................................................... 33
8.1.1.1 Cleaning of Test Sieves with Mesh Sizes > 500 µm ........................................................... 33
8.1.1.2 Cleaning of Test Sieves with Mesh Sizes < 500 µm ........................................................... 34
8.1.1.3 Drying of Test Sieves........................................................................................................... 34
8.2 Replacing the machine fuses........................................................................................................... 34
9Return for Service and Maintenance................................................................................................. 36
10 Disposal................................................................................................................................................ 37
11 Index ..................................................................................................................................................... 38

Notes on the Manual
5

Notes on the Manual
6
1 Notes on the Manual
This operating manual is a technical guide on how to operate the device safely and it contains
all the information required for the areas specified in the table of contents. This technical
documentation is a reference and instruction manual. The individual chapters are complete in
themselves.
Familiarity (of the respective target groups defined according to area) with the relevant chapters
is a precondition for the safe and appropriate use of the device.
This operating manual does not contain any repair instructions. If faults arise or repairs are
necessary, please contact your supplier or get in touch with Retsch GmbH directly.
Application technology information relating to samples to be processed is not included but can
be read on the Internet on the respective device’s page at www.retsch.com.
Changes
Subject to technical changes.
Copyright
Disclosure or reproduction of this documentation, use and disclosure of its contents are only
permitted with the express permission of Retsch GmbH.
Infringements will result in damage compensation liability.

Notes on the Manual
7
1.1 Explanations of the Safety Instructions
In this Operating Manual we give you the following safety warnings
Serious injury may result from failing to heed these safety warnings. We give you the following
warnings and corresponding content.
WARNING
Type of danger / personal injury
Source of danger
–Possible consequences if the dangers are not observed.
•Instructions on how the dangers are to be avoided.
We also use the following signal word box in the text or in the instructions on action to be taken:
WARNING
Moderate or mild injury may result from failing to heed these safety warnings. We give you
the following warnings and corresponding content.
CAUTION
Type of danger / personal injury
Source of danger
–Possible consequences if the dangers are not observed.
•Instructions on how the dangers are to be avoided.
We also use the following signal word box in the text or in the instructions on action to be taken:
CAUTION
In the event of possible property damage we inform you with the word “Instructions” and the
corresponding content.
NOTICE
Nature of the property damage
Source of property damage
–Possible consequences if the instructions are not observed.
•Instructions on how the dangers are to be avoided.
We also use the following signal word in the text or in the instructions on action to be taken:
NOTICE

Notes on the Manual
8
1.2 General Safety Instructions
CAUTION
Read the Operating Manual
Non-observance of these operating instructions
–The non-observance of these operating instructions can
result in personal injuries.
•Read the operating manual before using the device.
•We use the adjacent symbol to draw attention to the
necessity of knowing the contents of this operating
manual.
Target group : All persons concerned with the machine in any form
This machine is a modern, high performance product from Retsch GmbH and complies with the
state of the art. Operational safety is given if the machine is handled for the intended purpose
and attention is given to this technical documentation.
You, as the owner/managing operator of the machine, must ensure that the people entrusted
with working on the machine:
•have noted and understood all the regulations regarding safety,
•are familiar before starting work with all the operating instructions and specifications for the
target group relevant for them,
•have easy access always to the technical documentation for this machine,
•and that new personnel before starting work on the machine are familiarised with the safe
handling of the machine and its use for its intended purpose, either by verbal instructions from a
competent person and/or by means of this technical documentation.
Improper operation can result in personal injuries and material damage. You are responsible for
your own safety and that of your employees.
Make sure that no unauthorised person has access to the machine.
CAUTION
Changes to the machine
–Changes to the machine may lead to personal injury.
•Do not make any change to the machine and use spare parts and
accessories that have been approved by Retsch exclusively.
NOTICE
Changes to the machine
–The conformity declared by Retsch with the European Directives will lose
its validity.
–You lose all warranty claims.
•Do not make any change to the machine and use spare parts and
accessories that have been approved by Retsch exclusively.

Notes on the Manual
9
1.3 Repairs
This operating manual does not contain any repair instructions. For your own safety, repairs
may only be carried out by Retsch GmbH or an authorized representative or by Retsch service
engineers.
In that case please inform:
The Retsch representative in your country
Your supplier
Retsch GmbH directly
Your Service Address:

Confirmation
10
2 Confirmation
This operating manual contains essential instructions for operating and maintaining the device
which must be strictly observed. It is essential that they be read by the operator and by the
qualified staff responsible for the device before the device is commissioned. This operating
manual must be available and accessible at the place of use at all times.
The user of the device herewith confirms to the managing operator (owner) that (s)he has
received sufficient instructions about the operation and maintenance of the system. The user
has received the operating manual, has read and taken note of its contents and consequently
has all the information required for safe operation and is sufficiently familiar with the device.
As the owner/managing operator you should for your own protection have your employees
confirm that they have received the instructions about the operation of the machine.
I have read and taken note of the contents of all chapters in this operating
manual as well as all safety instructions and warnings.
User
Surname, first name (block letters)
Position in the company
Signature
Service technician or operator
Surname, first name (block letters)
Position in the company
Place, date and signature

Technical Data
11
3 Technical Data
3.1 Use of the Device for the Intended Purpose
CAUTION
Risk of explosion or fire
–On account of its design, the device is not suitable for use in hazardous
(potentially explosive) atmospheres.
•Do not operate the device in a hazardous atmosphere.
CAUTION
Risk of explosion or fire
Changing sample characteristics
–Note that the characteristics and accordingly the danger presented by a
sample can change during sieving.
•Do not sieve any potentially explosive or combustible materials in
this device.
CAUTION
Danger of personal injury
Dangerous nature of the sample
–Depending on the dangerous nature of your sample, take the
necessary measures to rule out any danger to persons.
•Observe the safety guidelines and datasheets of your
sample material.
Target group: Operating companies, operators
Machine type designation: AS450 basic
The AS450 basic is a vibratory sieve shaker for sieve tests in conjunction with sieve stacks to
determine the particle size of different material samples. The AS 450 basic has been specially
designed for test sieves with a diameter of between 400 mm and 450 mm. This offers four or
five times the sieving area compared to sieves with a diameter of 200 mm. As a result, sieving
times can be significantly shortened using the AS 450 basic.
The AS 450 basic is suitable for the dry and wet sieving of pourable, dispersible products with a
feed size of up to 125 mm. A further advantage is the very high feed volume of up to 15 kg of
material to be sieved, which depending on the particle size and sieve mesh size can be
separated in a single operation. All sieving parameters are digitally set and displayed.
It has an electromagnetic drive with special springs arranged at a calculated angle. The
horizontal rotating movement and the vertical movement enable sieve tests to be conducted
efficiently.
The AS450 basic remote control contains a digital controller to adjust the vibration, process
duration and interval operating mode. The interval time is part of the process duration, so that
the vibration is switched on and off during the overall sieving duration. The process duration
and amplitude are displayed on the same digital display. The process duration is shown in

Technical Data
12
minutes and the maximum amplitude depends on the number of sieves and the weight of the
sample.
WARNING
W0018
Danger due to electric shock
–An electric shock can cause burns and cardiac arrhythmia or respiratory
failure and cardiac arrest.
•Do not touch the device if water has got inside it!
•Always operate the device with a mains socket protected by a circuit
breaker.
NOTICE
Area of use of the machine
–This machine is a laboratory machine designed for 8-hour single-shift
operation.
•This machine may not be used as a production machine nor is it
intended for continuous operation.
CAUTION
Changes to the machine
–Changes to the machine may lead to personal injury.
•Do not make any change to the machine and use spare parts and
accessories that have been approved by Retsch exclusively.
3.2 Emissions
CAUTION
V0043
Damage to hearing
A greater sound level may occur depending on the type of material,
the sieve column and the set oscillation amplitude or sieve base
acceleration.
–Excessive noise in terms of volume and duration can cause
impairments or permanent damage to hearing.
•Ensure there are suitable soundproofing measures or wear
hearing protection.
Noise levels:
Noise measurement in accordance with DIN 45635-031-01-KL3
The noise levels depend on the set amplitude, the number of clamped sieves and the type of
material to be sieved.
Operating conditions:

Technical Data
13
Material to be sieved = broken granite, particle size <2 mm, 5 sieves (Ø 450mm)
Measurement 1:
Vibration level = 5
Sound pressure level LpAeq = 69.6 dB
Measurement 2:
Vibration level = 9
Sound pressure level LpAeq = 83.3 dB
3.3 Maximum Load
Maximum volume of material to be sieved = up to 15 kg
3.4 Receptacle Volume
The maximum receptacle volume (the maximum feed quantity) depends on various factors such
as number and aperture size of the test sieves, maximum grain size and width of distribution of
the sample material.
Examples for the maximum feed quantity according to DIN 66165 for test sieves of 450 mm in
diameter are listed in the following table:
Mesh size
Max. feed
quantity
Max. permitted oversize material
according to DIN 66165
25 µm
64 cm3
32 cm3
45 µm
95 cm3
48 cm3
63 µm
127 cm3
64 cm3
125 µm
191 cm3
95 cm3
250 µm
286 cm3
143 cm3
500 µm
445 cm3
223 cm3
1 mm
636 cm3
318 cm3
2 mm
1 113 cm3
557 cm3
4 mm
1 749 cm3
875 cm3
8 mm
2 863 cm3
1 431 cm3
3.5 Feed Grain Size
Traditional dry sieving is performed in the particle size range of 40 µm to 125 mm. With wet
sieving the measurement range can be extended to 20 µm. The maximum feed grain size
depends on the sample material, the number and aperture size of the test sieves and the type
of the sieving machine.
Examples for the maximum feed grain size according to DIN 66165 are listed in the following
table:

Technical Data
14
Mesh size
Max. feed grain size
according to DIN 66165
Mesh size
Max. feed grain size
according to DIN 66165
22 µm
710 µm
4 mm
25 mm
45 µm
1 mm
8 mm
45 mm
63 µm
1.4 mm
16 mm
71 mm
125 µm
2.5 mm
22.4 mm
90 mm
250 µm
4 mm
45 mm
150 mm
500 µm
6 mm
63 mm
180 mm
1 mm
10 mm
90 mm
230 mm
2 mm
16 mm
125 mm
300 mm
3.6 Degree of Protection
–IP54 Sieve shaker
–IP40 Control unit
3.7 Dimensions and Weight
Height: 242mm without sieve stacks; 1250mm with sieve stacks
Width: 605mm
Depth: 605mm
Weight: approx. 140 kg without sieve stack and without clamping mechanism
3.8 Required Floor Space
605 mm x 605 mm; no safety clearances necessary
3.9 Rated Power
820 watts (230 V)

Packaging, Transport and Installation
15
4 Packaging, Transport and Installation
4.1 Packaging
The packaging has been adapted to the mode of transport. It complies with the generally
applicable packaging guidelines.
NOTICE
Storage of packaging
–In the event of a complaint or return, your warranty claims may be
endangered if the packaging is inadequate or the machine has not been
secured correctly.
•Please keep the packaging for the duration of the warranty period.
4.2 Transport
NOTICE
Transport
–Mechanical or electronic components may be damaged.
•The machine may not be knocked, shaken or thrown during
transport.
4.3 Temperature fluctuations and condensed water
NOTICE
Temperature fluctuations
The machine may be subject to strong temperature fluctuations during transport
(e.g. aircraft transport)
–The resultant condensed water may damage electronic components.
•Protect the machine from condensed water.
4.4 Conditions for the Installation Site
Ambient temperature: 5°C to 40°C
NOTICE
Ambient temperature
–Electronic and mechanical components may be damaged and the
performance data alter to an unknown extent.
•Do not exceed or fall below the permitted temperature range of the
machine (5°C to 40°C / ambient temperature).

Packaging, Transport and Installation
16
Atmospheric humidity:
Maximum relative humidity 80% at temperatures up to 31°C, decreasing linearly up to 50%
relative humidity at 40°C
NOTICE
Atmospheric humidity
–Electronic and mechanical components may be damaged and the
performance data alter to an unknown extent.
•Do not exceed the admissible range for atmospheric humidity.
4.5 Installation of the Device
The device should be erected on a level, stable surface that does not buckle and which is
suitable for operation.
A level surface ensures the even distribution of the sample across the sieves and the stability of
the machine.
Installation height: maximum 2000 m above sea level
NOTE
H0004
Erection
–Vibrations can occur depending on the operating status of the device.
•Only erect the device on a level, flat and horizontal surface. The base
must be stable and must not vibrate.

Packaging, Transport and Installation
17
4.6 Insert tensioning rod
Fig. 1: Securing the tension rods
•Use an M20 washer (US) on the two tension rods (SG).
•Screw the two tension rods tightly into the sieve plate (SP).
•Lock each of these with a hex nut (SM).
NOTICE
The clamping force to secure the sieve stacks is approx. 30Nm.
SM
US
SP
SG

Packaging, Transport and Installation
18
4.7 Connect the control unit
Fig. 2: Connecting the control unit
•Plug the connector (S1) of the control cable (SK) into the socket (BG1) on the device.
•Screw the connector tight.
•Plug the 2nd connector (S2) of the control cable (SK) into the control unit socket (BG2).
•Screw the connector tight.
S1
BG1
1
SK
S2
BG2

Packaging, Transport and Installation
19
4.8 Wall mounting and bench arrangement of the control unit
Fig. 3: Wall mounting or bench arrangement of the control panel
A bracket (BW) for wall installation or bench arrangement is provided on the control panel (B).
Two screws (with maximum diameter of 6mm) and two corresponding dowels are required for
wall installation. The control panel can be installed so it is fixed (ft) or removable (ar).
For desk mounting, the bracket must be turned up to the top limit stop (OA).
4.9 Electrical Connection
WARNING
W0008
Risk of death through power surge
Mains plug not completely plugged in
–Water can enter the IEC socket if the IEC is not completely plugged in. An
electric shock can lead to burns and arrhythmia or to respiratory arrest as
well as cardiac arrest.
•Only operate the device with the IEC fully plugged in.
ar
BW
ft
B
OA

Packaging, Transport and Installation
20
WARNING
When connecting the power cable to the mains supply, use an external fusethat complies with
the regulations applicable to the place of installation .
•Please check the type plate for details on the necessary voltage and frequency for the
device.
•Make sure the levels agree with the existing mains power supply.
•Use the supplied connection cable to connect the device to the mains power supply.
Refer to the type plate for information about fusing.
4.10 Type Plate Description
Fig. 4: Type plate lettering
1 Device designation
2 Year of production
3 Part number
4 Serial number
5 Manufacturer’s address
6 CE marking
7 Disposal label
8 Bar code
9 Power version
10 Mains frequency
11 Capacity
12 Amperage
13 Number of fuses
14 Fuse type and fuse strength
In the case of questions please provide the device designation (1) or the part number (3) and
the serial number (4) of the device.
1
2
3
4
5
6
7
8
9
10
11
12
14
13