Fritsch LABORETTE 27 Manuale utente
LABORETTE 27
ROTARY CONE SAMPLE DIVIDER
Operating instructions
27.14XX.00
Valid from serial number 0100
Read the instructions prior to performing any task!
Translation of the original operating instructions
Version 10/2014 Index 003
Fritsch GmbH
Milling and Sizing
Industriestraße 8
55743 Idar-Oberstein
Telephone: +49 (0)6784/ 70-0
Fax: +49 (0)6784/ 70-11
email: [email protected]
Internet: www.fritsch.de
Certifications and CE conformity
Fritsch GmbH has been certified by the TÜV-Zertifizierungsgemeinschaft
e.V.
An audit certified that Fritsch GmbH conforms to the requirements of
the DIN EN ISO 9001:2008.
The enclosed Conformity Declaration lists the guidelines the FRITSCH
instrument conforms to, to be able to bear the CE mark.
Certification
CE Conformity
Certifications and CE conformity
- 3 -
Table of contents
1Basic structure............................................................................... 6
2 Safety information and use........................................................... 7
2.1 Requirements for the user..................................................... 7
2.2 Scope of application............................................................... 7
2.2.1 Operating principle............................................................. 8
2.3 Obligations of the operator................................................... 8
2.4 Information on hazards and symbols used in this manual.... 9
2.5 Device safety information.................................................... 12
2.6 Hazardous points................................................................. 13
2.7 Electrical safety.................................................................... 13
3 Technical data.............................................................................. 14
3.1 Dimensions.......................................................................... 14
3.2 Weight.................................................................................. 14
3.3 Voltage................................................................................. 14
3.4 Electrical fuses..................................................................... 14
3.5 Technical design................................................................... 14
3.6 Speed................................................................................... 14
4 Installation................................................................................... 15
4.1 Transport............................................................................. 15
4.2 Unpacking............................................................................ 15
4.3 Setting up............................................................................. 15
4.3.1 Fitting the dividing head................................................... 16
4.4 Electrical connection............................................................ 16
5 Initial start-up.............................................................................. 17
5.1 Switching on......................................................................... 17
5.2 Switching off........................................................................ 17
6 Using the device........................................................................... 18
6.1 General preparations........................................................... 18
6.1.1 Screwing the glass laboratory bottles onto the 1:8 or
1:10 dividing head............................................................. 18
6.1.2 Division ratios................................................................... 18
6.1.3 Setting up the "LABORETTE 24" sample feeder................ 20
6.2 Dividing solid materials........................................................ 20
6.2.1 Example of highly adhesive powder................................. 21
6.3 Dividing suspensions and highly adhesive materials........... 21
6.4 Taking samples..................................................................... 22
7 Cleaning........................................................................................ 23
8 Maintenance................................................................................ 24
9 Disposal........................................................................................ 25
10 Guarantee terms.......................................................................... 26
Table of contents
- 4 -
11 Exclusion of liability..................................................................... 28
12 Safety logbook............................................................................. 30
13 Index............................................................................................. 34
Table of contents
- 5 -
1 Basic structure
1 Funnel
2 Funnel holder
3 Dividing head lid
4 Dividing head
5 Sample bottles
6 Main switch
7 Fuse
Basic structure
- 6 -
2 Safety information and use
2.1 Requirements for the user
This operating manual is intended for persons assigned with operating
and monitoring the Fritsch LABORETTE 27. The operating manual and
especially its safety instructions are to be observed by all persons
working on or with this device. In addition, the applicable rules and regu-
lations for accident prevention at the installation site are to be observed.
Always keep the operating manual at the installation site of the LABOR-
ETTE 27.
People with health problems or under the influence of medication,
drugs, alcohol or exhaustion must not operate this device.
The LABORETTE 27 may only be operated by authorised persons and
serviced or repaired by trained specialists. All commissioning, mainte-
nance and repair work may only be carried out by technically qualified
personnel. Qualified personnel are persons who, because of their educa-
tion, experience and training as well as their knowledge of relevant
standards, regulations, accident prevention guidelines and operating
conditions, are authorised by those responsible for the safety of the
machine to carry out the required work and are able to recognize and
avoid possible hazards as defined for skilled workers in IEC 364.
In order to prevent hazards to users, follow the instructions in this
manual.
Malfunctions that impair the safety of persons, the LABORETTE 27 or
other material property must be rectified immediately. The following
information serves both the personal safety of operating personnel as
well as the safety of the products described and any devices connected
to them: All maintenance and repair work may only be performed by
technically qualified personnel.
This operating manual is not a complete technical description. Only the
details required for operation and maintaining usability are described.
Fritsch has prepared and reviewed this operating manual with the
greatest care. However, no guarantee is made for its completeness or
accuracy.
Subject to technical modifications.
2.2 Scope of application
The LABORETTE 27 is a rotary cone sample divider for representative
division of samples in the laboratory. It divides bulk solids and particle
suspensions from the original amount filled into equal parts, whereby
each partial amount is representative of the entire collective.
Inorganic and organic samples are prepared for analysis, quality control
or material testing in such a way that after the analysis of a single shot,
reliable statements can be made about the physical and chemical prop-
erties of the entire collective.
Safety information and use
- 7 -
2.2.1 Operating principle
In the LABORETTE 27, two different division principles are combined in
one device such that the advantages of both can be optimally used:
The commodity stream - guided by a funnel - impacts on a cone. By
sliding off its lateral surface, an initial division into individual streams
takes place. This process is known as "coning" and is successfully used
mainly when dividing large quantities.
In the case of the LABORETTE 27, the fanned out commodity stream is
led into individual channels at the lower end of the cone surface and col-
lected in glass laboratory bottles.
The relatively high rotational speed of the cone prevents inhomogeneity
in the commodity stream and demixing during apportionment. Through
rotation of the cone, the probability of falling into a certain bottle is
equal for all components of the commodity stream.
Additionally, the divided commodity stream is accelerated outwards
through the centrifugal force of rotation and flows more easily through
the guide channels into the collection bottles. The guide channels inter-
penetrate. The commodity stream is divided up and deposits are
reduced through the sharp lines of separation between the channels.
The high rotational speed of the turning dividing cone leads to an
extremely high division ratio, i.e. each sample consists of a very large
number of single shots. A high division ratio is, however, one of the most
important prerequisites for a good, representative sample division.
2.3 Obligations of the operator
Before using the LABORETTE 27, this manual is to be carefully read and
understood. The use of the LABORETTE 27 requires technical knowledge;
only commercial use is permitted.
The operating personnel must be familiar with the content of the oper-
ating manual. For this reason, it is very important that these persons
actually receive the present operating manual. Ensure that the operating
manual is always near the device.
The LABORETTE 27 may exclusively be used within the scope of applica-
tions set down in this manual and within the framework of guidelines
put forth in this manual. In case of non-compliance or improper use, the
customer assumes full liability for the functional capability of the LABOR-
ETTE 27 and for any damage or injury arising from failure to fulfil this
obligation.
By using the LABORETTE 27 the customer agrees with this and recognizes
that defects, malfunctions or errors cannot be completely excluded. To
prevent risk of damage to persons or property or of other direct or indi-
rect damage, resulting from this or other causes, the customer must
implement sufficient and comprehensive safety measures for working
with the LABORETTE 27.
Safety information and use
- 8 -
Neither compliance with this manual nor the conditions and methods
used during installation, operation, use and maintenance of the LABOR-
ETTE 27 can be monitored by Fritsch GmbH. Improper execution of the
installation can result in property damage and thus endanger persons.
Therefore, we assume absolutely no responsibility or liability for loss,
damage or costs that result from errors at installation, improper opera-
tion or improper use or improper maintenance or are in any way con-
nected to these.
The applicable accident prevention guidelines must be complied with.
Generally applicable legal and other obligatory regulations regarding
environmental protection must be observed.
2.4 Information on hazards and symbols used in this manual
Safety information in this manual is designated by symbols. Safety infor-
mation is introduced by keywords that express the extent of the hazard.
DANGER!
This symbol and keyword combination points out a directly
hazardous situation that can result in death or serious
injury if not avoided.
WARNING!
This symbol and keyword combination points out a possibly
hazardous situation that can result in death or serious
injury if not avoided.
CAUTION!
This symbol and keyword combination points out a possibly
hazardous situation that can result in slight or minor injury
if not avoided.
NOTICE!
This symbol and keyword combination points out a possibly
hazardous situation that can result in property damage if
not avoided.
Safety information
Safety information and use
- 9 -
ENVIRONMENT!
This symbol and keyword combination points out a possibly
hazardous situation that can result in environmental
damage if not avoided.
To call attention to specific hazards, the following symbols are used in
the safety information:
DANGER!
This symbol and keyword combination points out a directly
hazardous situation due to electrical current. Ignoring infor-
mation with this designation will result in serious or fatal
injury.
DANGER!
This symbol and keyword combination designates contents
and instructions for proper use of the machine in explosive
areas or with explosive substances. Ignoring information
with this designation will result in serious or fatal injury.
DANGER!
This symbol and keyword combination designates contents
and instructions for proper use of the machine with com-
bustible substances. Ignoring information with this designa-
tion will result in serious or fatal injury.
WARNING!
This symbol and keyword combination points out a directly
hazardous situation due to movable parts. Ignoring infor-
mation with this designation can result in hand injuries.
WARNING!
This symbol and keyword combination points out a directly
hazardous situation due to hot surfaces. Ignoring informa-
tion with this designation can result in serious burn injuries
due to skin contact with hot surfaces.
Special safety information
Safety information and use
- 10 -
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