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Fritsch LABORETTE 27, Руководство по эксплуатации, Страница: 8 / 36

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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 -

 

Содержание LABORETTE 27

Страница 1: ...BORETTE 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 ...

Страница 2: ...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 info fritsch de Internet www fritsch de ...

Страница 3: ...meinschaft 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 ...

Страница 4: ...peed 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 samp...

Страница 5: ...11 Exclusion of liability 28 12 Safety logbook 30 13 Index 34 Table of contents 5 ...

Страница 6: ...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 ...

Страница 7: ...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 the...

Страница 8: ...ne 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 c...

Страница 9: ...tal 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...

Страница 10: ...ive 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 situa...

Страница 11: ...tion for efficient operation without mal function To emphasise procedure instructions results lists references and other elements the following designations are used in this manual Designation Explanation 1 2 3 Step by step procedure instructions ð Results of steps in the procedure References to sections in this manual and rele vant documentation Lists without a specific order Button Operating ele...

Страница 12: ...neous combustion dust explosion if the share of fine particles exceeds a cer tain percentage When dividing these kinds of sub stances special safety measures must be taken and the work must be supervised from a specialist The LABORETTE 27 is not explosion protected and is not designed to divide explosive materials n Do not remove the information signs NOTICE Immediately replace damaged or illegibl...

Страница 13: ... divider after it has come to a complete standstill n Do not reach into the device when it is running n Crushing hazard at the rotating bottles To avoid this hazard use the Perspex protective device Order no 27 1500 17 2 7 Electrical safety The main switch 6 separates the device from the mains on two poles General information Safety information and use 13 ...

Страница 14: ...next to the main switch Replacement 0 315 At 5 x 20 100 200 V 0 16 At 5 x 20 200 240 V If necessary pull the fuse holder out using a 2 3 mm screwdriver to replace the fuse element 3 5 Technical design Depending on the technical design device parts that come into contact with the commodity stream consist of n food safe anodised aluminium n polyoxymethylene POM n polytetrafluoroethylene PTFE n glass...

Страница 15: ... Unpacking n It is best to open the wooden case by pulling out the metal clips with pliers n Carefully open the cardboard box with a knife do not cut too deep as otherwise the contents could become damaged and remove the packaging material n Check the device for possible damage in transit n Compare the contents of the delivery with your order 4 3 Setting up n Place the rotary cone sample divider o...

Страница 16: ...initial start up it should be checked whether the nominal voltage of the device corresponds to the local mains voltage Protective conductor connections must be checked for per fect working order before the initial start up Connections may be established only by authorised per sonnel The LABORETTE 27 is constructed according to the state of the art and in accordance with the EC machinery directive ...

Страница 17: ...ugged into the mains socket the device is ready for operation 5 1 Switching on Switch main switch to I The rotary cone sample divider starts up The device will reach the pre set rotational speed of 100 rpm after approx 10 seconds 5 2 Switching off Switch main switch to 0 The rotary cone sample divider stops turning after a few seconds Initial start up 17 ...

Страница 18: ...nto the holder with approx 1 4 turn in the direction of the arrow After completion of the sample division unscrew and remove the glass bottles in the reverse order The sample bottles are screwed into the holders as for a normal screw thread 6 1 2 Division ratios Dividing head with divi sion ratio Maximum fill quantity for one cycle Maximum permitted particle size Partial amount per bottle 1 8 4000...

Страница 19: ...he dividing head 10 250 mL bottles with GL55 glass screw thread depending on sample quan tity n Place the lid on the dividing head n Insert a suitable funnel n 500 mL glass bottles cannot be used 6 1 2 3 Division in the ratio 1 30 n Screw three sample bottles into the dividing head three 15 mL 20 mL or 30 mL bottles depending on sample quantity n Insert and lock in place three collection pans pull...

Страница 20: ...lowing from the funnel into the feed channel by adjusting the height of the funnel on the support column 5 n Connect the control device 6 6 2 Dividing solid materials Start feeding the material only when the rotary cone sample divider is switched on n Hinge the funnel holder 8 upwards n Place the lid 7 on the dividing head n Insert the funnel in position A for solid materials n Switch the rotary c...

Страница 21: ...ns and highly adhesive materials n Remove the lid and place the funnel in position B for eccentric divi sion See Ä Chapter 6 2 Dividing solid materials on page 20 n Switch the rotary cone sample divider on Final rotational speed of 100 rpm after approx 10 seconds n Feed the powder slowly and evenly into the funnel n Dispense the suspension sample through a separating funnel for example or feed it ...

Страница 22: ...he glass bottles and remove the divided samples 1 Collection pan 2 Sample bottles n Additionally for division in the ratio 1 30 Unscrew the sample bottles and remove the divided samples Remove and empty the three collection pans pull the pin down wards pull the pan out Using the device 22 ...

Страница 23: ...idelines of the Accident Prevention Regulation BGV A3 especially if the device has been set up in a dusty environment or if pro cessing grinding stock that produces dust n If necessary lift the dividing head from the drive shaft sliding disc is glued to the dividing head n Keep the motor drive shaft dust free n Do not use force when fitting the dividing head n Remove material from the funnel divid...

Страница 24: ...mend keeping a safety logbook Ä Chapter 12 Safety logbook on page 30 where all work maintenance repairs performed on the device is entered The most important element of maintenance is regular cleaning When cleaning the complete device adhere to the guidelines of the Accident Prevention Regulation BGV A3 especially if the device has been set up in a dusty environment or if the processed source mate...

Страница 25: ...Analytical devices have been registered under category 9 monitoring and control instruments It has been accepted that FRITSCH is operating only in the business to business area The German registration number for FRITSCH is WEEE reg no DE 60198769 FRITSCH WEEE coverage Since the registration of FRITSCH is classified for bilateral transactions no legal recycling or disposal process is described FRIT...

Страница 26: ... receipt of the device and be received by us within three weeks or alternatively online registration must be carried out with the above mentioned information The guarantee will not be granted in cases where n Damage has arisen due to normal wear and tear especially for wear parts such as Crushing jaws support walls grinding bowls grinding balls sieve plates brush strips grinding sets grinding disk...

Страница 27: ...nt to remedy all recognisable errors or faults including those not covered by the guarantee Errors or faults not covered by the guarantee shall in this case be rectified at cost We recommend reading the operating manual before contacting us or your dealer in order to avoid unnecessary inconvenience Ownership of defective parts is transferred to us with the delivery of the replacement part the defe...

Страница 28: ...y is expressly prescribed by applicable laws or jurisprudence FRITSCH GMBH expressly reserves the right to modify and or update this operating manual without prior notice The same applies to modifica tions and improvements to the products described in this operating manual It is the responsibility of the user to ensure that they have the current version of this operating manual For more informatio...

Страница 29: ...ons including fatal injuries or similar The above exclusion of lia bility is limited by mandatory liability as prescribed by laws or jurispru dence Liability for negligence is excluded in all cases No permission is given expressly implicitly or otherwise for the use of patents brands or other copyrights We also assume no liability for copy right infringements or infringements of the rights of thir...

Страница 30: ...12 Safety logbook Date Maintenance Repair Name Signature Safety logbook 30 ...

Страница 31: ...Date Maintenance Repair Name Signature Safety logbook 31 ...

Страница 32: ...Date Maintenance Repair Name Signature Safety logbook 32 ...

Страница 33: ...Date Maintenance Repair Name Signature Safety logbook 33 ...

Страница 34: ...l safety 13 Exclusion of liability 28 Explanation of signs 9 Explanation of symbols 9 F Fitting the dividing head 16 G Guarantee terms 26 H Hazardous points 13 O Operating principle 8 R Requirements for the user 7 S Safety information 9 Safety logbook 30 31 32 33 Samples with a static charge 21 Scope of application 7 Screwing on the glass laboratory bottles 18 Setting up 15 Skilled workers 7 Start...

Страница 35: ......

Страница 36: ... 2014 Fritsch GmbH Milling and Sizing Industriestraße 8 55743 Idar Oberstein Telephone 49 0 6784 70 0 Fax 49 0 6784 70 11 email info fritsch de Internet www fritsch de ...

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