Operating instructions
Contents
1. 42 Maintenance ee ERR PER EUER a eases 43 pe HOC 45 9 1 Checklist for troubleshooting essen 45 Disposal nra terrre ERR PE asien 47 Guarantee terms ss 48 Exclusion of liability 50 Safety logbook 52 hme E E T 54 FRITSCH mila 1 Basic structure voltage Setector 100 120V 200 240V evo ACHTUNG CAUTION 1 Hood handle 7 Voltage rotary switch 2 Latch 8 Main switch 3 Hood 9 Mains connection 4 Membrane keyboard 10 Device fuse 2x 10A T 5 Spindle clamping device 11 RS232 interface 6 Lock 12 Support disc FRITSCH a 2 Safety information and use 2 1 Requirements for the user 2 2 Scope of application This operating manual is intended for persons assigned with operating and monitoring the Fritsch PULVERISETTE 7 classic line 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 7 classic line People with health problems or under the influence of medication drugs alcohol or exhaustion must not operate this device The PULVERISETTE 7 classic line m2. 2 6 Protective equipment ss 13 2 6 1 Opening the hood without mains connection 13 2 6 2 Imbalance switch ss 14 2 7 Hazardous points 16 2 8 Electrical safety oe entlasten 16 2 8 1 General information 16 2 8 2 Protection against restart 16 2 8 3 Overload protection 16 2 8 4 Imbalance detection ss 17 3 Technical data 18 3 1 DIMENSIONS 2 e EORR ERR Ro iaa RUIT 18 SUME IJ M M 18 3 3 Operating rioise ises rennen eroi Rotae rennen 18 abrite nenn 18 3 5 Current consumption 18 3 6 Power consumption 18 3 7 Electrical fuses 19 3 8 ENSE RR 19 3 9 Final PCM ESS 5 i iie erre etaed eu 19 4 IL acl mM 20 4 1 Transport een hei 20 4 2 Eo To Do 20 Loca rm 21 4 4 Ambient conditions ss 22 4 5 Electrical connection ss 22 4 5 1 Adjusting the mains voltage 23 4 5 2 Setting device specification in setup mode 25 5 Initial start up 8 eR ete EE PEDES RR needs 26 c Mb n ed oro Po To rasen 26 5 2 Function check ss 26 5 3 Switching Off retento oer OR AMI US UPS 27 FRITSCH EH 10 11 12 13 14 Using the device 28 6 1 Choice of grinding bowls and grinding balls 28 6 1 1 Size of the grinding balls sees 30 6 1 2 Numb
3. Fritsch GmbH Milling and Sizing Industriestra e 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
4. 6 4 1 Running time grinding duration on page 32 Interrupt grinding by pressing the STOP button Con tinue grinding by pressing the START button This takes into account the previous grinding duration and the number of repetitions IO 37 FRITSCH aa 6 9 1 Changing the time unit in setup mode 1 When the device has been switched off press and hold the STOP button on the front control panel Eb LL SIS Gi eo Switch on the device with the main switch 8 on the back of the device If POWER SUPPLY is flashing the device is in setup mode If POWER SUPPLY is not flashing repeat the procedure To perform changes press the right button y in the TIMER BE field Time unit hours and minutes display Time unit minutes and seconds display 1 factory setting To save and end setup mode press the STOP button anar Se EE 6 10 Reverse mode Press the REVERSE button If the REVERSE button is illuminated reverse mode is activated After the selected running time expires the mill will change its direction f 7 of rotation For this REPETITIONS has to be at least 1 Reverse is selected when mixing dry samples or suspensions for 38 FRITSCH u 6 11 Repetition of grinding pause cycles REPETITIONS control panel area Press or button select the number of repetitions 0 99 The number of remaining cycles is displayed during opera
5. The lid and bowl surfaces that contact the Teflon flat seal must be clean 34 FRITSCH u 13 Spindle screw 14 Lock nut Clamping W Place the sealing ring and the lid onto the bowl W Placethe grinding bowl in the grinding bowl holder on the cork disc do not force it WB Turn the spindle screw 13 all the way down until the pressure piece of the rubber disc lies flush on the lid W Screw the spindle screw by hand until tight B Turn the lock nut 14 all the way down until it lies flush on the clamping bracket W Tighten the lock nut by hand DANGER After several minutes of grinding and in the cooling down phases check that the spindle screw and the lock nut are 6 6 Mass balance still firmly connected For mass balancing always clamp a bowl with a lid and sealing ring of the same weight opposite as a counterweight This bowl can be empty without balls or grinding stock if the weight difference does not exceed 70 100 g NOTICE If the weights of the bowls differ too much this may result e in the planetary micro mill shifting position on the sup 6 7 Grinding duration porting surface WARNING Burn hazard Grinding bowls can get very hot after long grinding dura tions Wear protective gloves for removal after grinding or during the grinding breaks Depending on the application the grinding duration should be adapted to the development of heat in the bowls The temperature inside the bo
6. balls with a higher density and thus a higher impact energy 6 4 2 Speed Higher speeds shorten the grinding time and increase the percentage of fine particles 32 FRITSCH u 6 4 3 Reverse mode W Useful for mechanical alloying W Improvement of the homogeneity of the sample during mixing A low to medium speed is recommended for mixing dry or 1 wet 6 4 Number and size of the balls Pre grind course hard material with large balls Reduced percentage of fine material Many small balls increase the percentage of fine material during extended running time 6 4 5 Weight of the balls type of material A higher mass specific weight of the grinding balls accelerates grinding see table in amp Chapter 6 1 Choice of grinding bowls and grinding balls on page 28 6 4 6 Dry grinding Below a particle size of approx 20 um the surface forces prevail The grinding stock begins to stick Additional dry comminution can be achieved by adding surface active substances to the material to be ground Examples maximum amount to be added in mass Stearic acid 2 396 Aerosil fine particle silicic acid 0 5 296 Quartz sand 296 Glass powder 296 Glycol Ethylene glycol 0 1 0 5 96 4 5 25 droplets Triethanolamine 0 1 0 5 96 33 FRITSCH ie 6 4 7 Wet grinding grinding in a suspension DANGER Explosion hazard Ignition hazard The device is not explosion protected I
7. filled out and despatched without delay after 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 B 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 disks rotors sieve rings pin inserts conversion kits sieve inserts bottom sieves grinding inserts cutting tools sieve cassettes sieve and measuring cell glasses B Repairs adaptations or modifications were made to the device by unauthorized persons or companies W The device was not used in a laboratory environment and or has been used in continuous operation WB Damage is present due to external factors lightning water fire or similar or improper handling W Damage is present that only insubstantially affects the value or proper functioning of the device W The device type or serial number on the device has been changed deleted removed or in any other way rendered illegible B The above mentioned documents have been changed in any way or rendered illegible 48 FRITSCH EH Costs not covered by the guarantee Further information about the guar antee This guarantee excludes any costs for transport packaging or travel that accrue in the event the prod
8. 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 information please contact your local FRITSCH GMBH distributor or Fritsch GmbH Industri estr 8 D 55473 Idar Oberstein Not all parts shown here are necessarily installed in the product The buyer is not entitled to delivery of these parts If interested please con tact your local FRITSCH GMBH distributor or Fritsch GmbH Industriestr 8 D 55743 Idar Oberstein FRITSCH GMBH takes the greatest care to ensure that the quality relia bility and safety of your products are continuously improved and adapted to the state of the art The supplied products as well as this operating manual conform to the current state of the art when they leave the sphere of influence of FRITSCH GMBH By using the product the customer agrees with this and recognizes that defects malfunctions or errors cannot be completely excluded To pre vent risk of damage to persons or property or of other direct or indirect damage resulting from this or other causes the customer must imple ment sufficient and comprehensive safety measures for working with the product 50 FRITSCH u Fritsch GmbH excludes any liability warranty or other obligation to com pensate for damages regardless of whether this liability warranty or other obligation is explicit or implicit contractual or arising from unlawful acts or presc
9. locked hood and the fan running 6 14 Stand by If the mill is not in operation and the hood 3 is open it switches to the energy saving stand by mode after one hour The STAND BY lamp lights The stand by function is not possible when the hood is closed 40 FRITSCH u 7 Cleaning 7 1 Grinding elements DANGER Mains voltage Before beginning with cleaning work disconnect the mains plug and protect the device against being unin tentionally switched back on Donotallow any liquids to flow into the device Indicate cleaning work with warning signs Put safety equipment back into operation after cleaning work NOTICE Cool grinding elements made of agate sintered corundum zirconium oxide and silicon nitride slowly and carefully Do not heat agate elements in a microwave under any cir cumstances heating is too fast They must never be exposed to thermal shocks as this could cause irreparable damage to the parts They will burst apart with force e When cleaning any part of the device adhere to the guide 1 lines of the Accident Prevention Regulation BGV A3 espe cially if the device has been set up in a dusty environment or if processing grinding stock that produces dust Clean the grinding bowl and grinding balls each time after using them Clean them e g under running water using a brush and a commer cially available cleaning agent It is recommended to use a wi
10. specialised per sonnel Put safety equipment back into operation after mainte nance work 9 1 Checklist for troubleshooting Fault description The POWER SUPPLY ready status indi cator does not light up START button is pressed but mill does not start up Mill reduces speed Mill stops running The hood cannot be opened Cause No mains connection Main switch Device fuse Check above if POWER SUPPLY is not lit up if LID LOCK ACTIVATED is not lit up Pause time active Fuse blown If OVERLOAD lights up Overload Switched off due to thermal over load of the drive Imbalance of machine too high Drive was blocked Motor s V belt loose or ripped Speed sensor is defective The button on the front of the hood was not activated when opening 45 Remedy Plug in mains plug Switch on main switch Check device fuse See above Close the hood firmly Wait for end of pause or press STOP Set the fuse to 0 063 A T on the board or 10 AT in the frequency converter Press STOP reduce load or accept the reduced speed Allow device to cool down and select a lower speed Correct the mass balancing Rectify malfunction in grinding chamber Check V belt replace if necessary Call customer service Open the hood by using the hood handle FRITSCH aie Fault description Cause Micro fuse on the board blown Grinding stock escapes Clamping device loose Sealing ring defective Soil
11. FRITSCH a ld i S rid Operating instructions PLANETARY MICRO MILL PULVERISETTE 7 classic line Valid starting with 07 4000 0487 Read the instructions prior to performing any task Translation of the original operating instructions FRITSCH EN d X Fritsch GmbH Milling and Sizing Industriestraf e 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 010 FRITSCH ui Certifications and CE conformity Certification CE Conformity Fritsch GmbH has been certified by the T V Zertifizierungsgemeinschaft e V TOA MALADE MENILA PUn ARIKNEQU NUNG GERMAN ASSOCIATION FOR ACCONIDIETATYON GM DM TGA ZM 05 08 00 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 FRITSCH aM Table of contents 1 Basic structure nennen a eeN 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 2 2 Drive motor and speed regulation s 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
12. If a power failure occurs during operation or if the device is switched off with the main switch 8 the hood 3 is locked The hood lock 6 is automatically released when the power returns For safety reasons how ever the mill does not restart 2 8 3 Overload protection E Inthe event of an overload the device reduces the speed in a con trolled manner The REDUCED SPEED light is lit as a warning The device can be used again with the reduced speed B The device switches off if the drive motor becomes too hot M The device switches off if the drive is blocked See Chapter 9 Repairs on page 45 236 FRITSCH ra 2 8 4 Imbalance detection The device switches off if there is excessive imbalance See Chapter 9 Repairs on page 45 417 FRITSCH aie 3 Technical data 3 1 Dimensions 3 2 Weight 3 3 Operating noise 3 4 Voltage 3 5 Current consumption 3 6 Power consumption 500 x 370 x 530 mm height x width x depth Net approx 35 kg Gross approx 55 kg Emissions value of workplace according to DIN EN ISO 3746 2005 is up to 96dB A The value fluctuates strongly depending on the speed the grinding stock and the type of grinding bowl and grinding balls The device can be operated in two voltage ranges W Single phase alternating current 100 120 V 10 and W Single phase alternating current 200 240 V 10 See also amp Chapter 4 5 Electrical connection on page 22 T
13. Number of balls per bowl 30 54 o Opening the hood without mains connection 13 Operating noise 18 Operating principle 8 Overload sa rs a BPE SAM RS vas 39 Overload protection 16 p Power consumption 18 Protection against restart 16 Protective equipment 13 R Repetition of grinding pause cycles 39 Requirements for the user 7 Reverse mode 33 S Safety information 9 Safety logbook 52 53 Scope of application 7 Selecting the grinding balls 28 Selecting the grinding bowl 28 Setting reverse mode 38 Setting the grinding duration 37 Setting the speed 37 SOCEM UP i o mr om one 21 Size of the grinding balls 30 Skilled workers 7 SCC MI PD ed 32 Stand By Mode 40 T Troubleshooting checklist 45 U Unpacking oeg ou en en aha 20 V Voltages isse 2a esse 18 W Warning information 9 uid ee medio a e 47 Weight Re ee een 18 Wet grinding 34 FRITSCH 5 ld MEN E FRITSCH u 2014
14. above are used Example 1 gt Loosen screw 2 p CAUTION Risk of entrapment at the lid Close the lid carefully 3 Tighten screw Tips and recommendations This symbol emphasises useful tips and recommendations 1 as wells as information for efficient operation without mal function Further designations 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 1552 53 Results of steps in the procedure amp References to sections in this manual and rele vant documentation Lists without a specific order 11 Designation Explanation Button Operating elements e g push button switch display elements e g signal lamps Display Screen elements e g buttons function key assignment 2 5 Device safety information Please observe B Only use original accessories and original spare parts Failure to observe this instruction can compromise the safety of the machine W Accident proof conduct is to be strictly followed during all work Comply with all currently applicable national and international acci dent prevention guidelines CAUTION Wear hearing protection If a noise level of 85 dB A is reached or exceeded ear pro tection should be worn to prevent hearing damage WARNING The maximum accepted concentration MAC levels of the rel
15. aintenance or are in any way con nected to these 254T FRITSCH E d NU 13 Safety logbook Date Maintenance Repair Name Signature 252 FRITSCH uf NNNM Date Maintenance Repair Name Signature 53 FRITSCH she 14 Index A Accident prevention 7 Adjusting to the mains voltage 23 Ambient conditions 22 Authorised persons 7 C Cleaning grinding elements 41 Cleaning the mill 41 Conducting a grinding operation 39 Cooling the grinding bowl 40 Current consumption 18 D DIMENSIONS seen 18 Disposal ce ae een nn 47 Dry grinding 33 E Electrical connection 22 Electrical fus es u a 19 Exclusion of liability 50 Explanation of signs 9 Explanation of symbols 9 F Filling grinding bowls 32 Filling quantity of grinding bowls 31 Final fineness 19 G Grinding duration 32 35 Guarantee terms 48 H Hazardous points 16 I Imbalance detection 17 M Maintenance 43 Material 19 N
16. and pushes the casing up That can cause irreparable damage to the insert The grinding bowl will definitely be rendered unusable Above temperatures of 200 C the adhesive will be destroyed The same applies for encased grinding bowl lids V belt seals and motor require some time at the beginning before they can reach the optimal performance and or speed This means that initially a well filled and heavy grinding set may operate at a lower speed than after an introductory phase of approx 1 2 hours running time 6 1 Choice of grinding bowls and grinding balls A CAUTION If the grinding elements used are not genuine accessories we assume no guarantee and exclude all liability for damage to the device or for personal injury 28 FRITSCH Material bowl and balls Agate Silicon nitride Sintered corundum Zirconium oxide Stainless steel Tempered steel Tungsten carbide Main components of the material 99 996 SiO 9096 Si3N 99 7 Al O 96 2 ZrO Bowl 17 1996 Cr 8 10 Ni Balls 12 5 14 596 Cr 196 Ni Bowl 11 1296 Cr Balls 1 0 1 6596 Cr 93 WC 6 Co CAUTION A The grinding element is subject to normal wear during use Before every grinding operation check the wall thickness of the grinding bowls In the event of severe wear replace the grinding bowl If this is not done the prevailing high centri fugal forces during grinding may cause the grindi
17. ay only be operated by authorised per sons 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 oper ating 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 7 classic line or other material property must be rectified immediately The following information serves both the personal safety of operating per sonnel as well as the safety of the products described and any devices connected to them All maintenance and repair work may only be per formed 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 The micro mill PULVERISETTE 7 classic line can be applied uni
18. be sufficient space to reach the main switch on the LU back of the device Keep any obstructions away from the air outlet on the side ventila tion grate Risk of overheating 21 FRITSCH aM 4 4 Ambient conditions 4 5 Electrical connection A WARNING Mains voltage The device may only be operated indoors The surrounding air may not carry any electrically con ductive dust Maximum relative humidity 8096 for temperatures up to 31 C linearly decreasing down to 50 relative humidity at 40 C W Theroom temperature has to stay between 5 40 C B Altitudes up to 2000 m W Degree of pollution 2 according to IEC 664 A A A DANGER Provide short circuit protection Risk of damage due to short circuits Make sure that the socket is connected to a mains line protected with a residual current circuit breaker DANGER Mains voltage Changes to the connection line may only be made by a qualified person CAUTION Ignoring the values on the type plate may result in damage to the electrical and mechanical components Before establishing the connection compare the voltage and current values stated on the type plate with the values of the mains system to be used 22 FRITSCH u The mains voltage has been set at the factory to that ofthe 1 specific country The mains voltage only has to be adjusted if it deviates from the value on the type plate If adjustment is nece
19. checked regularly for integrity and proper functioning For start up the hood 3 has to be closed The hood 3 is locked without mains connection B during operation The hood 3 can only be opened if the mill s drive is at a 1 standstill Cc 3 2 6 1 Opening the hood without mains connection CAUTION The emergency release must not be activated while the machine is running Disconnect the machine from the mains before the emergency release Failure to observe this will render void the guarantee and releases us from lia bility for any resulting damage to the device as well as for any resulting personal injury 2432 FRITSCH sh 2 6 2 Imbalance switch 1 Insert the included triangular key A into the bore hole on the bottom side of the PULVERISETTE 7 classic line and turn it to the right 2 Unlock the latch 2 by turning it 3 Pull the hood 3 up to open it 4 The mill can only be switched on again if the hood 3 is closed and the safety lock 7 has been enabled again by turning the trian gular key to the right The device switches off if there is excessive imbalance In this case the second grinding bowl has to be filled accordingly A M 11 NOTICE The maximum permissible weight difference is about 70 g for long term loading 100 g is permissible for short term loading CAUTION The imbalance switch can be disabled at your own risk The Fritsch
20. company will give no guarantee for damage resulting from disabling of the imbalance switch NOTICE Change these settings only after all work as described in amp Chapter 4 Installation on page 20 has been carried out In the factory setting the imbalance switch is activated Activation deactivation of the imbalance switch in setup mode 14 FRITSCH A 1 Press and hold the STOP button on the control panel 4 EL 1 1 2 Switch on the device with the main switch 8 on the back of the device and release the STOP button 3 If POWER SUPPLY is flashing the device is in setup mode If POWER SUPPLY is not flashing repeat the procedure NOTICE In the display above the right button x in the TIMER field there must be a minus sign This indi cates that the imbalance switch has been activated preventing the device from shifting position and any resulting damage to the device 15 FRITSCH A 5 To save and exit setup mode press the STOP button 2 7 Hazardous points CAUTION Crushing hazard when closing the hood 3 Crushing hazard at the spindle clamping device 5 2 8 Electrical safety 2 8 1 General information B The main switch 8 separates the device from the mains on two poles W Switch off the main switch 8 if the planetary micro mill will be idle for an extended period of time e g overnight 2 8 2 Protection against restart
21. e to have read and understood this operating manual The use of the product requires technical knowledge only commercial use is permitted The product may be used exclusively within the scope of applications set down in this operating manual and within the framework of guidelines put forth in this operating manual and must be subject to regular main tenance In case of non compliance improper use or improper mainte nance the customer assumes full liability for the functional capability of the product and for damage or injury arising from violating these obliga tions The contents of this operating manual are subject in entirety to copy right law This operating manual and its contents may not be copied fur ther distributed or stored in any form in part or in whole without the prior written consent of Fritsch This operating manual has been prepared to the best of our knowledge and checked for accuracy at the time of printing FRITSCH GMBH assumes no guarantee or liability whatsoever for the accuracy or com pleteness of the contents of this operating manual including but not limited to the implied warranties of merchantability and fitness for a par ticular purpose unless liability 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
22. er of balls per grinding bowl independent of the material quantity ss 30 6 1 3 Calculated weight of a ball 31 6 2 Filling quantities of grinding bowls esses 31 6 3 Filling the grinding bowl seen 32 6 4 Factors with an impact on grinding esses 32 6 4 1 Running time grinding duration 32 6 42 Speed einsehen Denn 32 6 4 3 Reverse Mode nina 33 6 4 4 Number and size of the balls 33 6 4 5 Weight of the balls type of material 33 6 4 6 Dry grinding iiion rnnt rennen nen 33 6 4 7 Wet grinding grinding in a suspension 34 6 5 Clamping the grinding bowls 34 6 5 1 Clamping with the spindle clamping device 5 34 6 6 M ss balance een 35 6 7 Grinding duration erinnerte anra R nan pena 35 6 8 Setting the speed nn 37 6 9 Setting the running time 37 6 9 1 Changing the time unit in setup mode 38 6 10 Reverse mode Rennens 38 6 11 Repetition of grinding pause cycles 39 6 12 Conducting a grinding operation 39 6 12 1 Overlo ad erecine nette tne trade acie 39 6 12 2 Switching off 40 6 13 Cooling the grinding bowl esee 40 6 14 Stand EP H 40 Cleaning ceteri te eee eos 41 7 1 Grinding elements ss 41 VE
23. erence values The size of bowls and grinding balls may need to be determined through experimentation NOTICE It is not advisable to mix balls of different diameters If e balls with different diameters are used increased wear to the balls is to be expected 6 1 2 Number of balls per grinding bowl independent of the material quantity A higher number of balls will reduce the grinding time and the grinding result will have a smaller particle size distribution Ball diameter mm Grinding bowl volume ml 12 45 5 Number of balls pcs 50 180 200 10 Number of balls pcs 6 8 18 20 15 Number of balls pcs 7 These are reference figures The number of balls may need to be deter mined through experimentation Grinding balls lt 3 mm Recommended ball mass per grinding bowl in grams Grinding bowl 12 ml 45 ml Useful capacity material to be 0 5 5 ml 3 20 ml ground Material Zirconium oxide 20g 70g 30 FRITSCH u Grinding bowl 12 ml 45 ml Useful capacity material to be 0 5 5 ml 3 20ml ground Stainless steel 30g 90g Tempered steel Hardmetal tungsten carbide 50g 200g 6 1 3 Calculated weight of a ball Ball diameter in mm 5 10 15 Material Density in g cm Calculated weight of a ball in g Agate 2 65 0 17 1 39 4 68 Silicon nitride 3 25 0 20 1 7 5 48 Sintered corundum 3 9 0 25 1 99 6 72 Zirconium oxide 5 7 0 37 2 98 10 07 Stainless steel 7 8 0 51 4 08 13 78 Tempered steel 7 9 0 52 4 14 13 96 T
24. es 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 PULVERISETTE 7 classic line 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 capa bility of the PULVERISETTE 7 classic line and for any damage or injury arising from failure to fulfil this obligation FRITSCH FA By using the PULVERISETTE 7 classic line 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 cus tomer must implement sufficient and comprehensive safety measures for working with the PULVERISETTE 7 classic line Neither compliance with this manual nor the conditions and methods used during installation operation use and maintenance of the PUL VERISETTE 7 classic line 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 responsibilit
25. evant safety guidelines must be observed if necessary ventilation must be provided or the machine must be oper ated under an extractor hood DANGER A 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 cer tain percentage When grinding these kinds of sub stances special safety measures must be taken and the work must be supervised from a specialist The PULVERISETTE 7 classic line is not explosion pro tected and is not designed to grind explosive materials W Donot remove the information signs NOTICE Immediately replace damaged or illegible information signs 12 FRITSCH a B Unauthorised alteration of the PULVERISETTE 7 classic line will void Fritsch s declaration of conformity to European directives and void the guarantee B Only use the PULVERISETTE 7 classic line 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 M If after reading the operating manual there are still questions or problems please do not hesitate to contact our specialised per sonnel 2 6 Protective equipment Protective equipment must be used as intended and may 1 not be disabled or removed 2 A All protective equipment must be
26. f flammable liquids are used make sure that the heat developing in the grinding bowl does not reach the solvent s boiling point Program appropriate cooling phases If the vapour pressure is too high vapours may escape and ignite If it can be avoided we recommend using non flammable liquids or liquids with a high boiling point The boiling point should be above 80 C and above 100 C for a long grinding duration During the transition to grinding in suspension you can add a liquid aux iliary agent with high boiling point and low vapour pressure e g water white spirits boiling point 100 140 C or alcohols with a high boiling point e g isopropanol We recommend that you only use so much liquid that the suspension has the same consistency as motor oil With this viscosity the best results can be achieved in most cases 6 5 Clamping the grinding bowls 6 5 1 Clamping with the spindle clamping device 5 Carry out the following checks before clamping the grinding bowls B Check the cork disc for damage Replace the cork discs if they have been pressed flat W The Teflon flat seal for the seal between the lid and the bowl should not be damaged or soiled Replace heavily deformed Teflon flat seals W Check the rubber disc for damage Replace rubber discs that have been pressed flat and are protruding laterally from the pressure piece W The end faces of the counter plates and the clamping bracket should not be dirty B
27. formation gt gt gt gt 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 10 FRITSCH u 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 Safety information in the procedure Safety information can refer to specific individual procedure instruc instructions tions 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
28. ices for recycling or disposal free of charge whenever a new device is purchased The used FRITSCH device must be delivered free of charge to a FRITSCH establishment In all other cases FRITSCH takes back used FRITSCH devices for recycling or disposal only against payment 47 FRITSCH ee 11 Guarantee terms Guarantee period Conditions for claims against the guar antee Reasons for loss of the guarantee As manufacturer FRITSCH GmbH provides above and beyond any guar antee claims against the seller a guaranty valid for the duration of two years from the date of issue of the guarantee certificate supplied with the device Within this guarantee period we shall remedy all deficiencies due to material or manufacturing defects free of charge Rectification may take the form of either repair or replacement of the device at our sole discre tion The guarantee may be redeemed in all countries in which this FRITSCH device is sold with our authorisation This guarantee is subject to the condition that the device is operated according to the instructions for use operating manual and its intended use Claims against the guarantee must include presentation of the original receipt stating the date of purchase and name of the dealer together with the complete device type and serial number For this guarantee to take effect the answer card entitled Securing of Guarantee enclosed with the device must be properly
29. ing on sealing ring or dirt has penetrated it Runs unevenly with strong vibrations Inadequate mass balancing 46 Remedy To check the micro fuse the housing has to be removed Tighten clamping device Replace the sealing ring Clean or replace if necessary Correct the mass balancing FRITSCH u 10 Disposal It is hereby confirmed that FRITSCH has implemented the directive 2002 95 EC of the European Parliament and Council from 27th January 2003 for the limitation of the use of certain dangerous substances in electrical and electronic devices FRITSCH has registered the following categories according to the German electrical and electronic equipment act section 6 paragraph 1 clause 1 and section 17 paragraphs 1 and 2 Mills and devices for the preparation of samples have been registered under category 6 for electrical and electronic tools except for large sta tionary industrial tools 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 FRITSCH is not obliged to take back used FRITSCH devices FRITSCH declares it is prepared to take back used FRITSCH dev
30. ng balls to penetrate the bowl s wall and damage the mill Failure to observe this will render void the guarantee and release us from liability for any resulting damage to the device or per sonal injury The hardness and density specific weight of the grinding bowl and grinding balls used must be greater than that of the material used to prevent excessive wear by abrasion High density means high impact energy 2 65 3 25 3 9 5 7 7 8 7 9 14 9 Density in g cm Abrasion resistance Good Extremely good Fairly good Very good Fairly good Good Very good Use for grinding stock Soft to medium hard samples Abrasive samples metal free grinding Medium hard fibrous samples Fibrous abrasive samples Medium hard brittle samples Hard brittle samples Hard abrasive sam ples The grinding bowls and grinding balls made of zirconium oxide are resistant to acids apart from hydrofluoric acid Normally choose a grinding bowl and grinding balls that are made of the same material 29 FRITSCH ie Exception Tungsten carbide balls 20 mm may be temporarily a few minutes combined with grinding bowls made of tempered steel 6 1 1 Size of the grinding balls Type of feed material Suitable ball diameter Hard sample material with a maximum feed size of 2 5 15 mm mm Fine material 0 5 mm 10 mm 5 mm Homogenisation of dry or liquid samples 10 mm These are ref
31. o the mains ACHTUNG Vor Wartung oder Spannungs 4 5 1 2 Adjusting the mains voltage in setup mode 1 Press and hold the STOP button on the front of the control panel 29358 ec 2 Switch on the device with the main switch 8 on the back of the device and release the STOP button 3 If POWER SUPPLY is flashing the device is in setup mode If POWER SUPPLY is not flashing repeat the procedure 4 Use the ROTATIONAL SPEED buttons to adjust the level of the mains voltage 90 260 V for the existing mains system ba FRITSCH 2958 CIE 24 FRITSCH A 5 To save and exit setup mode press the STOP button 4 5 2 Setting device specification in setup mode NOTICE P7 must always be displayed in the REPETITIONS field e The Fritsch company assumes no guarantee for damage resulting from changing this setting z25 FRITSCH a 5 Initial start up 5 1 Switching on 5 2 Function check FRITSCH 2080 99 CG Perform initial start up only after all work as described in amp Chapter 4 Installation on page 20 has been carried out The device must be connected to the power supply if this has not been done already Switch on the device with the main switch 8 on the back of the device The POWER SUPPLY lamp lights up CAUTION Only perform the function check at a speed of 100 1 min Use two empty grinding bowls of equal weight
32. ransient overvoltages in accordance with overvoltage category II are permitted Depending on the mains voltage the maximum current consumption is in the ranges B 115 V 8 8 A B 230V 3 7A Depending on the voltage range the maximum power consumption is approx 880 W 18 FRITSCH za 3 7 Electrical fuses Device fuse 10 5 x 20A T Micro fuse 10 A T in the frequency converter 3 8 Material E Maximum feeding size 5 mm EH Maximum feed amount 2 x 20 ml 3 9 Final fineness W Dry grinding up to d lt 20 um depending on the material W Wet grinding up to dso lt 1 um depending on the material 19 FRITSCH aa 4 Installation 4 1 Transport The device is delivered on a transport pallet with a wooden cover We recommend using a forklift or pallet truck for transporting the packed device DANGER Do not step under the transport pallet during transport WARNING Improper lifting can lead to personal injury or property damage The machine is only to be lifted with suitable equipment and by qualified personnel The guarantee excludes all claims for damage due to improper transport 4 2 Unpacking W Remove the nails that fasten the wooden hood to the transport pallet W Liftthe hood off the transport pallet B The pre perforated segments can be detached so that the foam parts can be removed more easily W Please store the transport packaging so that it can be reused if you need
33. re basket or sieve with a narrow mesh width for small grinding balls Take particular care to thoroughly dry tempered steel bowls and grinding balls with a towel after cleaning otherwise there is risk of corrosion Cleaning with solvents is permitted Cleaning with an ultrasonic cleaner is permitted For sterilisation do not heat the drying cabinet to more than 100 C 41 FRITSCH ee 7 2 Mill B After it has been switched off the micro mill can be wiped down with a damp cloth 42 FRITSCH ra 8 Maintenance Functional part Safety lock LID LOCK ACTIVATED light on the control panel Rotating bearings Drive motor A Task Hood lock Shows that the hood is closed Permanent lubrication Permanent lubrication DANGER Mains voltage Before beginning with maintenance work unplug the mains plug and protect the device against being unin tentionally switched back on again Indicate maintenance work with warning signs Maintenance work may only be performed by special ised personnel Put safety equipment back into operation after mainte nance or repair work We recommend keeping a safety logbook Chapter 13 Safety logbook on page 52 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 P
34. revention Regulation BGV A3 especially if the device has been set up in a dusty environment or if the processed source material pro duces dust Test Maintenance interval Is the closed hood locked in Before each use place when the main switch is off If this test is failed do not continue to work until the fault has been rectified When the hood is closed Once a month the LID LOCK ACTIVATED light should light up green Bearing clearance Every 2 000 h or annually Bearing clearance Every 4 000 h or annually 43 FRITSCH ax Functional part Task Test Maintenance interval V belt Motor to planetary disc Check the voltage remove Once a year the housing the belt must not slacken by more than approx 10 mm when pushed with your thumb Fan Grinding chamber cooling Proper function clean Twice a year and electronics when soiled Spindle clamping device 5 Clamping the grinding Mobility oil if necessary Every 1 000 h for the grinding bowl bowls clamping device Grinding bowl holder Cork disc rubber of the Signs of use replace if Every 1 000 h pressure piece and grinding pressed flat and no longer bowl lid seal elastic 44 FRITSCH ra 9 Repairs DANGER Mains voltage A Before beginning with repair work unplug the mains plug and protect the device against being unintention ally switched back on Indicate repair work with warning signs Repair work may only be performed by
35. ribed contractually by law or otherwise In no event shall the buyer be entitled to any compensation from Fritsch GmbH for any special direct indirect coincidental or consequential damage including but not limited to lost profits lost savings lost sales or financial loss of any kind or for compensation of third parties for downtimes for lost goodwill for damage to or replacement of equip ment and property for costs or restoration of materials or goods related to the product or the use of our products for other damage or injury to persons 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 third parties arising from the use of this product Neither compliance with this operating manual nor the conditions and methods used during installation operation use and maintenance of the product 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 m
36. rnal time switch is not possible 36 FRITSCH u 6 8 Setting the speed E Switch on the main switch 8 on the d pt the MEME I 5 E The green POWER SUPPLY ready status indicator lights up on the control panel anan J a e ROTATIONAL SPEED control panel area Press and hold the or button The speed can be selected in steps of 10 between 100 and 800 1 min The actual speed is displayed during operation The nominal speed is briefly displayed when the or button is pressed anean SIS Gs ea 6 9 Setting the running time FRITSCH EE TIMER control panel area W Press the MILLING button it lights up press the or button and select the running time in minutes 0 99 and seconds 0 59 B Set the pause time if cooling down is necessary Press the Pause button it lights up press the or button and select the pause time in minutes 0 99 and seconds 0 59 If no pause time is required set the pause time to O Ifthe combination minutes seconds is set in setup mode instead of hours minutes see Chapter 6 9 1 Changing the time unit in setup mode on page 38 the numbers at h indicate the minutes and at min the sec onds The factory setting for the time unit is minutes and sec onds Display 1 Theremaining running times and the pause times are displayed during operation Operation with an external time switch is not possible Running times Chapter
37. ssary proceed as in Chapter 4 5 1 1 Adjusting the mains voltage with the rotary switch 7 on page 23 and amp Chapter 4 5 1 2 Adjusting the mains voltage in setup mode on page 24 NOTICE Fritsch mills are speed controlled The devices are equipped for this with frequency converters In order to comply with the EMC directive many measures must be taken to pre vent operational transient emissions The possible leakage currents resulting from filtering meas ures can trigger a conventional residual current circuit breaker in the mains line This is no defect To prevent this special residual current circuit breakers which are adapted for operation with frequency converters are commercially available Operation without a residual current switch is possible but must be done in accordance with the relevant regulations 4 5 1 Adjusting the mains voltage 4 5 1 1 Adjusting the mains voltage with the rotary switch 7 CAUTION Only qualified personnel may change the voltage range on the device CAUTION The voltage range may only be adjusted after the mains has been disconnected Disconnect the device from the mains 23 FRITSCH A g 1 The rotary switch 7 for adjusting the mains voltage is located on Voltage Selector e the back of the device Rotate this switch to the required voltage 100 120V 200 240V The slit in the rotary switch indicates the chosen voltage 2 Connect the device t
38. tion pnan 32 6 12 Conducting a grinding operation M After the conditions specified in amp Chapter 6 Using the device on page 28 have all been observed close the hood 3 B Press the START button on the control panel B The hood is locked and the mill starts up B The mill turns at the set speed nominal speed If the load is too great for example due to heavy grinding bowls the speed is reduced actual speed so that the machine is not overloaded If the mill does not start see amp Chapter 9 Repairs on page 45 O While in operation the hood 3 remains locked even during pause times and the fan cools the interior 6 12 1 Overload If the mill is overloaded the speed is reduced and the REDUCED SPEED light flashes The mill switches off if the overload continues for too long see amp Chapter 9 1 Checklist for troubleshooting on page 45 39 FRITSCH aa 6 12 2 Switching off E Press the STOP button on the control panel Shortly after the mill comes to a standstill the hood is unlocked and can be opened W Switch off the device with the main switch 8 on the back of the device 6 13 Cooling the grinding bowl WARNING Burn hazard Grinding bowls can get very hot after long grinding dura tions Wear protective gloves for removal after grinding or during the grinding breaks WB When the hood is open 3 or W Inthe programmed pause times with closed
39. to prevent too great an imbalance Open the hood 3 Clamp two empty lidded grinding bowls with of the same weight Close the hood 3 Set the speed on the control panel as 100 1 min see amp Chapter 6 8 Setting the speed on page 37 Press START on the control panel The hood 3 is locked and the mill starts up at the preselected speed 26 FRITSCH za 5 3 Switching off E Press the STOP button on the control panel a W Shortly after the mill comes to a standstill the hood is unlocked and can be opened B Switch off the device with the main switch 8 on the back of the device 27 FRITSCH a 6 Using the device A CAUTION Before starting the machine make sure that the grinding bowl has been clamped correctly and that there are no loose parts inside the device There is a risk of loose grinding bowls or parts being projected Failure to observe this will render void the guarantee and releases us from liability for any resulting damage to the device as well as for any resulting personal injury NOTICE During grinding the temperatures in the grinding bowl may get very high In encased grinding bowls the inserts are glued into the casing with a two component construction adhesive The adhesive is resistant to temperatures up to approx 140 C Above 140 C the adhesive will liquefy and accumulate below the insert in the casing When the adhesive cools down it solidifies
40. to return the product Fritsch GmbH accepts no liability for damage caused by improper packaging packaging that is not from Fritsch W Compare the contents of the delivery with your order BD Grinding bowls made of tempered steel may have recesses m on the surface caused during production They do not have an impact on grinding or the grinding results and usually disappear after the first grinding operation These recesses on the surface if present are within the range of the permissible production tolerances Complaints relating to such grinding bowls therefore cannot be accepted 20 FRITSCH ai 4 3 Setting up A A A rings DANGER Do not step under the transport pallet during transport CAUTION The weight of the planetary micro mill is approx 35 kg CAUTION Crushing hazard Always lift with 2 persons Hold the bottom edge of the housing when lifting the device NOTICE Operating the planetary micro mill while it is standing on the transport pallet is prohibited Lift the mill from the transport pallet with at least 2 persons Place the mill on a flat stable surface A fastening set is provided to help stabilise the mill and prevent the mill from shifting during oper ation Screw the two rings diagonally into the surface using the ra drilling template Position the mill with 2 device feet in the provided Make sure that the planetary micro mill can be easily accessed There has to
41. uct must be sent to us or in the event that one of our specialist technicians is required to come to your site Any servicing done by persons not authorised by us and any use of parts that are not original FRITSCH accessories and spare parts will void the guar antee The guarantee period will neither extend nor will a new period of guar antee begin in the event that a claim is placed against the guarantee Please provide a detailed description of the type of error or the com plaint If no error description is enclosed we shall interpret the shipment as an assignment 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 defective part shall be returned to us at buyer s expense NOTICE Please note that in the event that the device must be e returned the device must be shipped in the original Fritsch packaging Fritsch GmbH denies all liability for any damage due to improper packaging packaging not from Fritsch Any enquiries must include a reference to the serial number imprinted on the type plate 49 FRITSCH ee 12 Exclusion of liability Before using the product be sur
42. ungsten carbide 14 9 0 96 7 70 25 98 To determine the weight of the required balls the calculated weight of a ball is multiplied by the number of balls required Example A 45 ml agate bowl is to be filled with 185 agate balls with a diameter of 5 mm Calculation 0 17 g 185 pcs 31 45 g 31 45 g of grinding balls can be weighed and inserted in the grinding bowl thus avoiding the time required for counting the balls 6 2 Filling quantities of grinding bowls NOTICE Never operate the mill without grinding stock This can e cause damage to the grinding balls and grinding bowls 31 FRITSCH a NOTICE If the filling quantity is lower than the specified minimum this will result in increased wear due to abrasion This can cause irreparable damage to the mill components Grinding bowl Min sample volumes Max sample volumes 45 ml 3ml 20 ml 12 ml 0 5 ml 5 ml 6 3 Filling the grinding bowl Do not fail to comply with the following sequence 1 Place the grinding balls in the empty bowl 2 Fill grinding stock onto the balls 3 Place the sealing ring on the rim of the grinding bowl NOTICE Make sure the sealing surfaces are clean 4 Place the lid on the grinding bowl 6 4 Factors with an impact on grinding 6 4 1 Running time grinding duration A longer grinding duration will increase the percentage of fine material To reduce the running time you can use a grinding bowl and grinding
43. versally for fast dry and wet grinding of inorganic and organic samples for analysis quality inspection or material testing During synthesis the planetary micro mill is used for mixing and homog enising dry samples emulsions or suspensions FRITSCH sh 2 2 1 Operating principle The grinding stock is crushed and ground by grinding balls in a grinding bowl The centrifugal forces from the rotation of the grinding bowls around their own axis and from the rotating support disc act on the con tents of the grinding bowl which consists of grinding stock and grinding balls The grinding bowl and the support disc have opposite directions of rota tion so that the centrifugal forces alternate in the same direction and in the opposite direction The result is that the grinding balls run down the inside of the bowl s wall providing a friction effect and the grinding balls hit the opposite wall of the grinding bowl providing an impact effect The impact effect is amplified by the impact of the grinding balls against each other a Rotation of the grinding bowl b Centrifugal force o Support disc movement 2 2 2 Drive motor and speed regulation A maintenance free three phase motor operated via a frequency con verter is used as the drive 2 3 Obligations of the operator Before using the PULVERISETTE 7 classic line this manual is to be care fully read and understood The use of the PULVERISETTE 7 classic line requir
44. wls is 20 30 C warmer than the outer casing temperature 35 FRITSCH a CAUTION The maximum permissible temperature of the grinding bowl outer casing is 100 110 C agate max 70 80 C The grinding duration is therefore based on the maximum bowl temperature The grinding duration at which the tem perature is not exceeded depends on the material ball and speed For this reason the user should determine it through experimentation The temperature of the outer casing of the grinding bowl during wet grinding must be at least 30 C below the boiling point of the liquid used NOTICE Monitor the warming of the grinding stock A longer running time may require pause times for cooling down Checkthat the clamping device is firmly connected when switching on again after a cooling down phase NOTICE If grinding bowls are removed during a grinding pause check that they fit correctly before the device is switched back on The extent to which the heating up of grinding stock needs to be observed depends of course on the sample used in each individual case Note a longer running time may also require a longer pause time for cooling down To reduce the grinding time you can use a grinding bowl and grinding balls with a higher density and thus a higher impact energy The mill can also run for several hours during low speed operations for mixing and homogenisation Operation with an exte
45. y 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 2 4 Information on hazards and symbols used in this manual Safety information 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 FRITSCH u 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 Special safety information To call attention to specific hazards the following symbols are used in the safety in
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