FRITSCH PULVERISETTE 23 User Manual
Operating instructions
MINI-MILL
PULVERISETTE 23
Valid starting with: 23.1000/101
Read the instructions prior to performing any task!
Translation of the original operating instructions
Fritsch GmbH
Milling and Sizing
Industriestraße 8
D - 55743 Idar-Oberstein
Telephone: +49 (0)6784/ 70-0
Fax: +49 (0)6784/ 70-11
email: info@fritsch.de
Internet: www.fritsch.de
Version 03/2014 Index 006
Certifications and CE conformity
Certifications and CE conformity
Certification
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.
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Table of contents
Table of contents
Basic structure............................................................................... 6
1
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.................................................... 11
2.6 Hazardous points................................................................. 12
2.7 Electrical safety.................................................................... 12
2.7.1 General information......................................................... 12
2.7.2 Protection against restart................................................. 13
2.7.3 Overload protection.......................................................... 13
3 Technical data.............................................................................. 14
3.1 Dimensions.......................................................................... 14
3.2 Weight.................................................................................. 14
3.3 Operating noise.................................................................... 14
3.4 Voltage................................................................................. 14
3.5 Current consumption........................................................... 14
3.6 Power consumption............................................................. 14
3.7 Electrical fuses..................................................................... 14
3.8 Material................................................................................ 15
3.9 Final fineness....................................................................... 15
4 Installation................................................................................... 16
4.1 Transport............................................................................. 16
4.2 Unpacking............................................................................ 16
4.3 Setting up............................................................................. 16
4.4 Ambient conditions.............................................................. 16
4.5 Electrical connection............................................................ 17
4.6 Changing the timer.............................................................. 17
5 Initial start-up.............................................................................. 18
5.1 Switching on......................................................................... 18
5.2 Function check..................................................................... 18
5.3 Switching off........................................................................ 18
6 Using the planetary mill.............................................................. 19
6.1 Choice of grinding bowls and grinding balls........................ 19
6.1.1 Size of the grinding balls................................................... 19
6.1.2 Number of balls per grinding bowl (independent of the
material quantity)............................................................. 20
6.1.3 Calculated weight of a ball................................................ 20
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Table of contents
6.2 Filling the grinding bowl....................................................... 21
6.3 Factors with an impact on grinding..................................... 22
6.3.1 Running time (grinding duration)..................................... 22
6.3.2 Vibration frequency.......................................................... 23
6.3.3 Number and size of the balls............................................ 23
6.3.4 Weight of the balls (type of material)............................... 23
6.4 Dry grinding.......................................................................... 23
6.5 Wet grinding (grinding in a suspension).............................. 24
6.6 Clamping the grinding bowls............................................... 24
6.7 Grinding duration................................................................. 24
6.8 Control panel....................................................................... 25
6.8.1 Setting the vibration frequency........................................ 25
6.8.2 Setting the running time................................................... 25
6.9 Conducting a grinding operation......................................... 25
7 Cleaning........................................................................................ 26
7.1 Grinding elements................................................................ 26
7.2 Mill....................................................................................... 26
8 Maintenance................................................................................ 27
Repairs......................................................................................... 29
9
9.1 Checklist for troubleshooting............................................... 29
10 Disposal........................................................................................ 30
11 Guarantee terms.......................................................................... 31
12 Exclusion of liability..................................................................... 33
13 Safety logbook............................................................................. 35
14 Index............................................................................................. 38
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Basic structure
1 Basic structure
1 Knurled screw
2 Knurled nut
3 Clamping bracket
4 Grinding bowl
5 Control panel
6 Rubber disk
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2 Safety information and use
Requirements for the user
2.1
This operating manual is intended for persons assigned with operating
and monitoring the Fritsch PULVERISETTE 23. 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 regulations for accident prevention at the installation site are to be observed.
Always keep the operating manual at the installation site of the PULVERISETTE 23.
People with health problems or under the influence of medication,
drugs, alcohol or exhaustion must not operate this device.
The PULVERISETTE 23 may only be operated by authorised persons and
serviced or repaired by trained specialists. All commissioning, maintenance and repair work may only be carried out by technically qualified
personnel. Qualified personnel are persons who, because of their education, 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 PULVERISETTE 23 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.
Safety information and use
2.2 Scope of application
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.
The mini-mill, PULVERISETTE 23, can be applied universally for the fast
dry or wet grinding of inorganic and organic samples for analysis, quality
inspection or material testing.
During synthesis, the mini-mill mixes and homogenises dry samples,
emulsions or pastes. With precise and continuous regulation of the
vibration frequency and small grinding bowls made out of different
materials, the device is also excellently suited for cell disruption for bioengineering.
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Safety information and use
2.2.1 Operating principle
Obligations of the operator
2.3
The rapid vertical acceleration of the grinding bowl causes the grinding
balls in the bowl to vibrate. Comminution occurs when the balls of
grinding stock hit the walls of the bowl and each other. Due to the
almost spherical grinding chamber the balls are not limited to vertical
movement, and very efficient comminution is achieved.
Before using the PULVERISETTE 23, this manual is to be carefully read
and understood. The use of the PULVERISETTE 23 requires technical
knowledge; only commercial use is permitted.
The operating personnel must be familiar with the content of the operating 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 PULVERISETTE 23 may exclusively be used within the scope of applications 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 PULVERISETTE 23 and for any damage or injury arising from failure to fulfil
this obligation.
By using the PULVERISETTE 23 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 indirect damage, resulting from this or other causes, the customer must implement sufficient and comprehensive safety measures
for working with the PULVERISETTE 23.
Neither compliance with this manual nor the conditions and methods
used during installation, operation, use and maintenance of the PULVERISETTE 23 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
operation or improper use or improper maintenance or are in any way
connected to these.
The applicable accident prevention guidelines must be complied with.
Generally applicable legal and other obligatory regulations regarding
environmental protection must be observed.
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2.4 Information on hazards and symbols used in this manual
Safety information
Safety information in this manual is designated by symbols. Safety information 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.
Safety information and use
Special safety information
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.
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 information with this designation will result in serious or fatal
injury.
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Safety information and use
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 combustible substances. Ignoring information with this designation will result in serious or fatal injury.
WARNING!
This symbol and keyword combination points out a directly
hazardous situation due to movable parts. Ignoring information with this designation can result in hand injuries.
Safety information in the procedure
instructions
WARNING!
This symbol and keyword combination points out a directly
hazardous situation due to hot surfaces. Ignoring information with this designation can result in serious burn injuries
due to skin contact with hot surfaces.
Safety information can refer to specific, individual procedure instructions. Such safety information is embedded in the procedure instructions
so that the text can be read without interruption as the procedure is
being carried out. The keywords described above are used.
Example:
1. Loosen screw.
2.
CAUTION!
Risk of entrapment at the lid.
Close the lid carefully.
3. Tighten screw.
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Tips and recommendations
Safety information and use
This symbol emphasises useful tips and recommendations
as wells as information for efficient operation without mal‐
function.
Further designations
2.5 Device safety information
Please observe!
To emphasise procedure instructions, results, lists, references and other
elements, the following designations are used in this manual:
Designation Explanation
Step-by-step procedure instructions
1., 2., 3. ...
ð
[Button] Operating elements (e.g. push button, switch),
‘Display’ Screen elements (e.g. buttons, function key
n Only use original accessories and original spare parts. Failure to
observe this instruction can compromise the safety of the machine.
n Accident-proof conduct is to be strictly followed during all work.
n Comply with all currently applicable national and international acci-
dent prevention guidelines.
Results of steps in the procedure
References to sections in this manual and relevant documentation
Lists without a specific order
display elements (
assignment)
e.g. signal lamps)
CAUTION!
Wear hearing protection!
If a noise level of 85 dB(A) is reached or exceeded, ear protection should be worn to prevent hearing damage.
WARNING!
The maximum accepted concentration (MAC) levels of the
relevant safety guidelines must be observed; if necessary,
ventilation must be provided or the machine must be operated under an extractor hood.
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Safety information and use
DANGER!
Explosion hazard!
– When grinding oxidizable substances, e.g. metals or
coal, there is a risk of spontaneous combustion (dust
explosion) if the share of fine particles exceeds a certain percentage. When grinding these kinds of substances, special safety measures must be taken and the
work must be supervised from a specialist.
The high-speed rotor mill is not explosion protected
–
and is not designed to grind explosive materials.
n Do not remove the information signs.
NOTICE!
Immediately replace damaged or illegible information signs.
2.6 Hazardous points
2.7 Electrical safety
n Unauthorised alteration of the PULVERISETTE 23 will void Fritsch's
declaration of conformity to European directives and void the guarantee.
n Only use the PULVERISETTE 23 when it is in proper working order, as
intended and in a safety- and hazard-conscious manner adhering to
the operating manual. In particular, immediately rectify any malfunctions that could pose a safety hazard.
n If, after reading the operating manual, there are still questions or
problems, please do not hesitate to contact our specialised personnel.
n Because the grinding container operates uncovered for better heat
conduction, touching the grinding bowl or the fixture during the
grinding process results in a risk of impact. Bear this in mind in particular when starting the operation. Always turn the main switch to
"Off" before working on the grinding bowl clamp to prevent the start
button from being unintentionally activated.
n Crushing hazard when clamping the grinding bowl.
2.7.1
General information
The main switch disconnects the mini-mill from the 24 V external power
supply.
When the device will be out of use for a longer period of time remove
the mains plug from the 24 V power supply.
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