Operating Instructions Laboratory Mortar
Contents
1. lift the pestle by pushing up the weight on its rod 4 After having closed the lid locking system slowly release the weight on its rod on the sample to be ground 5 By sliding the weight on its rod the grinding pressure on the sample can be se lected and thus the load of the pestle can be adapted to the hardness and the grindability of the sample Front position ca 3 kg load rear position ca 9 kg load 6 Then close the cover Laboratory Mortar Grinder pulverisette 2 Page 12 FRITSCH Advice For preliminary crushing of larger pieces you may slowly release the pestle on the sample in order to break them before the pestle reaches its normal operating po sition and can be arrested 8 2 Collecting the ground sample 1 After completion of the grinding process turn the timer in its OFF position or the timer stops the unit by itself 2 Lift the cover and lift up the rod with the grinding weight before the lid is opened Then lift the pestle out of the bowl by opening the lid until the rod comes to a stand at the rear side 3 Remove the bowl out of its recess by hand and collect the sample Advice You may collect your sample more complete by lifting the lid only a little and clean up the pestle from sticking sample f e using a brush The sample will drop directly into the bowl 9 Grinding during forced cooling Whenever material which is very heat sensitive is to be ground we recommend a for ced cooli2. on itself by gentle pressure against the radius of the bowl If the pestle does not rotate than the setting must be corrected 5 Re tighten the 3 mm hexagon socket screw firmly Laboratory Mortar Grinder pulverisette 2 Page 11 FRITSCH 7 3 Scraper The Vulkollan scraper can be adjusted horizontally with the spherical button and verti cally by loosening and re tightening the side knob A new scraper has to be ground before use e The part in contact with the bottom of the bowl must be ground so that its rear edge in eye direction touches the bottom e The part of the scraper in contact with the wall must be ground so that its front edge in eye direction touches the bottom and the scraper wipes off the sample from the bowl 8 Grinding Instructions Before closing the lid make certain that the grinding set is firmly seated e Close lid securely e Pay attention to heating of material to be ground in case of longer run time possibly stop to cool down In order to go easy with the grinding parts Laboratory Mortar Grinder with lid in closed position should not be operated the lid being closed without sample to be ground 8 1 Charging the sample 1 Open the cover and the lid of the Laboratory Mortar Grinder and fill in the sample into the mortar bowl The initial feed size should not exceed 3 mm and the quantity should not be more than 150 ml 2 Switch on the instrument 3 Then close the lid By doing this
3. overload f e after blockage of the mortar the drive motor is protected by an overload switch on the front panel To continue the grinding process after release of the blockage press the button in the middle of the switch 4 3 Fuses There is a fuse in the connection plug at the rear side of the grinder above the inlet for the power cable Replacement 5 x 20 TA4 Laboratory Mortar Grinder pulverisette 2 Page 8 WFRITSCH 5 Front Panel WFRITSCH mortar grinder LL pulverisette 2 5 1 Power on The green lamp Power On will light up after you turn on the master switch black switch on the rear side 5 2 Activating the Laboratory Mortar Grinder Timer 1 Setting the run time Set knob operated switch of timer to run time 2 Setting constant operation Set knob operated switch of timer to continuous operation ON 3 Maximum grinding period 1 hour 4 Before restarting examine the grinding conditions 5 When operating with external timer examine the temperature of the sample Shutting down Wait until time set on the timer has elapsed or turn knob operated switch on timer to OFF 5 3 Overload switch The motor is protected against overload f e after blockage of the mortar by an overload switch To continue the grinding process after release of the blockage press the button in the middle of the switch Laboratory Mortar Grinder pulverisette 2 Page 9 FRITSCH 6 Selec
4. 00 92 607 up Labor M rsermiihle P2 100 110 200 220 240V laboratory mortar grinder p2 Bezeichnung Haube Acrylglas Lagerkopf Pistillwelle mit Lagerung Sichtscheibe Acrylglas V Ring V 170A VerdeckverschluB Kondensator 16uF 240V MP Getriebemotor 220 380V DS Flachrundschraube M6x35 Schaber lasche Kugelknopf M5 D 16 Randelmutter M6 Gewindestange M10 Randelmutter M10 Schaberhalterung Innensechskantschl ssel Gr 3 T rscharnier Gewicht Ringkerntrafo 250 VA Kaltger testecker Schalter 1 polig 5 Raster Signalleuchte gr n Glimmlampe 220V berstromschutzschalter 1 2A Knebelknopf D 40mm kpl Zeitschalter Glasrohrsicherung 10A T bersteckkappe D 10 O b Le La eeu 4 dy 4 Un lee Moo 94 406 vO Uu len Fur Lape 18 12 91 Description acrylic hood bearing head pestle shaft with storage acrylic observation glass v ring V 170 A covering seal capacitor l6uF 240V MP motor 220 380V 3 ph saucer head screw M6x35 scraper mounting spherical knob knurled knob M6 threaded rod M10 knurled knob M10 lid mounting wrench size 3 hinge slider weight transformer 250 VA mains input socket switch 1 pole 5 latches signal lamp green glow lamp 220V over current relay 1 2A knob for timer timer fuse 10A slow cap D 10 34481090 j27 aSl48Ajnd NIJLSH38D 3V0I 0869 a HOW HISLIAA HdWD HOSLIHA Ad LH9IUAIOI YA 0S2 HaWJOjSUDJ JOD auo 03047 40ds usarnBuly VS 36042 0A 3ndu 434 0
5. WFRITSCH Operating Instructions Laboratory Mortar Grinder gt pulverisette 2 Fritsch GmbH Manufacturers of Laboratory Instruments FRITSCH Operating Instructions Version of December 1 1995 Valid from Ser No 5000 Copyright 1995 Diese Betriebsanleitung ist auch in Deutsch erhaltlich FRITSCH GmbH Telephone 06784700 Manufacturers of Laboratory Instruments Fax 067847011 Industriestra e 8 Telex 426203fritsd D 55743 Idar Oberstein Fritsch GmbH On June 24 1995 Fritsch GmbH was certified by the TUV Zertifizierungsgemeinschaft e V gt DIN ISO 9001 An audit was conducted Report No Q94 107 to verify that Fritsch meets the requirements of DIN ISO 9001 EN 29001 Certificate No 71 100 4 008 Laboratory Mortar Grinder pulverisette 2 Page 1 Table of Contents 10 3 10 4 11 12 Safety Signs Application and Use Safety Instructions Method of Operation Operating Safety Setting up Electrical Connections Checking for accordance of voltage and current Motor Fuses Front Panel Power on Activating the Laboratory Mortar Grinder Overload switch Selection of mortar bowl and pestle Installation of the grinding set Mortar bowl Pestle Scraper Grinding Charging the sample to be ground Collecting the ground sample Grinding during forced cooling Maintenance Cleaning Re grinding the grinding set Drive motor Instrument Warranty Technical Data List of Spare
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7. at the hinges Laboratory Mortar Grinder pulverisette 2 page 5 FRITSCH Operating Instructions Laboratory Mortar Grinder gt pulverisette 2 The pulverisette 2 is an automatic mortar grinder for the universal dry or wet grind ing down to analytical size When preparing samples for the synthesis the Laboratory Mortar Grinder is used for mixing or homogenising dry samples emulsions or pastes The Laboratory Mortar Grinder grinds inorganic as well as organic samples for the analysis quality control and material testing as for example Plants leafs coniferous needles spices nuts almonds food gelatine sugar grain pellets feed drugs dragees tablets soil coal ashes chemicals fertilisers chalk clay porcelain gypsum lime clinker cement silicate cinder The initial feed size should not exceed 3 mm and the quantity of a charge should not be more than 150 ml Larger pieces shall be reduced to small pieces before charging into the grinder The final fineness will depend upon the grinding time 1 um as a mean particle size can be reached Laboratory Mortar Grinder pulverisette 2 Page 6 951201VB FRITSCH 1 Method of Operating The size reduction from dried foods with hand mortar and pestle is the oldest known grinding procedure Archaeologists in Jordan have found a mortar with stage whose age could be determined at approx 10 000 years Similar to hand mortar and pestle by using the Laboratory Mortar Grinde
8. et When the lid is open the mortar bowl can be removed and can easily be cleaned i e under running water The pestle and the scraper are easily accessible when the lid is open and grinding residues are to be removed Use a brush too if necessary Residual ground material on the rubber seal at the lid or at the border of the mortar bowl may destroy the lip seal We can also recommend alcohol as an organic cleaning media Other solvents should not be utilised See paragraph 7 as to dismantling the pestle and the scraper 10 2 Re grinding the grinding set After a long use scratches or roughness may appear on the grinding surfaces of the grinding set In such cases charge about 20 gr carborundum silicon carbide of 0 5 mm particle size and about 20 ml water into the bowl close the lid and let the instru ment operate for about 30 minutes to 1 hour The silicon carbide paste in the mortar bowl will re grind the grinding set to a great extend by abrasion 10 3 Drive motor The drive motor does not require any maintenance The switches installed on the grinder should be checked for function smoothness of action in event of contamination 10 4 Laboratory Mortar Grinder The Laboratory Mortar Grinder itself does not require any maintenance The bearings of the rotating components are permanently lubricated Laboratory Mortar Grinder pulverisette 2 Page 14 FRITSCH 11 Warranty The warranty card enclosed with this ship
9. ment must be returned to the supplier com pletely filled out in order for the warranty to take effect Fritsch GmbH of Idar Oberstein and our Application technology laboratory and or our agent in your country will be glad to advise and help you In order to answer any questions you may have we will require the serial number stamped on the nameplate 12 Technical Dates Weight with mortar bowl and pestle 30 kg Dimensions H W D 450 250 450 mm Power consumption at 22 C and 225 Volt 20 87 A Power P 145 W max Power Pmax 165 W Laboratory Mortar Grinder pulverisette 2 Page 15 ajyanwjasiaOWogoi Z ayasuaa nd noq 01610q07 Hqw9 yosiy Ladd NN e KNU as SA AA N LZ aal 444 Sew L A RSSSSSSSSSSSSSSSSSSSSSSSSSSSSS 4 SE QZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ Ersatzteilliste spare parts list Pos 1 2 o Oo N On ao A w 11 12 15 17 18 19 20 21 22 23 24 25 26 Art Nr 02 126 02 135 02 02 84 93 81 81 92 02 92 92 02 92 02 83 92 02 81 81 81 86 81 81 81 81 140 129 405 910 00 311 220 148 114 606 508 141 510 112 405 908 118 131 609 430 86 417 422 517 403 479 507 17 10 00 17 15 00 00 09 10 16 00 10 00 13 09 00 10 00 00 00 00 00 00 00 00 00 93 404 16 92 07
10. ng with liquid nitrogen The liquid nitrogen is introduced directly into the bowl together with the material to be ground Dry ice solid carbon dioxide can also be used Keep in mind however that dry ice frequently contains frozen condensation water on its surface Caution Wear safety glasses when working with liquid nitrogen With some materials to be ground grinding can be improved by using coolants prior to grinding For example animal tissue or special plastics can be rendered brittle by dipping them briefly in to liquid nitrogen or freezing them in a deep freeze before hand Here too you must protect the material to be ground against condensing water For example you could place the material in a PVC bag during the cooling procedure Laboratory Mortar Grinder pulverisette 2 Page 13 FRITSCH 10 Maintenance The most important process in preventive maintenance is regular cleaning Caution The cleaning and maintenance of the Laboratory Mortar Grinder has to be done in accordance to the national safety regulations specially when the environment contains cer tain amount oft dust so that dust explosion could happen 10 1 Cleaning of the Laboratory Mortar Grinder The frequency with which a thorough cleaning must be performed depends on the grinding material and its final fineness We recommend adapting the cleaning intervals to the use of the Laboratory Mortar Grinder by making regular checks at the outs
11. parts Wiring Diagram Laboratory Mortar Grinder pulverisette 2 U W oOoOOOO Oo Oo OO OO ON NN R W FRITSCH Page 2 Safety Signs Application and Use Safety signs indicate dangers Caution Combustible ma Materials detri Caution Warning of dan terials mental to health gers A Danger electri Wear eye protec cal power tion Use of the Laboratory Mortar Grinder This operator s manual describes the area of application and the use of the Laboratory Mortar Grinder Any use other than for grinding with the grinding parts manufactured by Fritsch is impermissible Modifications may be made to the Mortar Grinder only after consultation with and written approval from FRITSCH If modifications are made without approval the conformity de clared by FRITSCH in respect of the European directives will no longer apply Exercise caution when working with combustible or poison ous materials Always comply with valid safety regulations MAC val ues when handling samples or cleaning liquids which are dangerous to your health Where applicable set up the Mortar Grinder in a well ventilated safety zone Laboratory Mortar Grinder pulverisette 2 page 3 Safety Instructions e Do not remove information signs e Allow only trained personnel to perform maintenance e Replace covers after maintenance e Do not disable safety devices permanently e Check safety device regularly e Out of se
12. r the commi nution takes place by pressure and friction between the mortar bowl and the free ro tating pestle But opposite to the hand mortar the automatic mortar is rotating and the axis of the pestle is in a stationary position A relatively large grinding surface ensures quick and uniform process and simple pestle adjustment Sticky materials could be ground after adding some liquid into the bowl The sample is moved by the motor driven mortar bowl and taken off from the wall and the bottom of the mortar bowl by the Vulcollan scraper The sample is turned around by the scraper working like a plough bringing it back in front of the pestle Compared to the usually more plain hand mortars the grinding bowl of the Laboratory Mortar Grinder is closed A lip seal between grinding bowl and lid guarantees for loss free comminution even if suspension is to be ground Reproducible results are obtained by the built in timer and the easy positioning of the load of the pestle A large acrylic safety cover permits observation of the grinding pro cess which can be controlled by adjustment of scraper and pestle The extremely robust construction of the driving unit the guidance of the pestle and all the other movable parts guarantees for a long lasting lifetime of the unit and prepared it in everydays readiness 2 Operating safety The operating safety of the Laboratory Mortar Grinder was proofed by the TUV Saarland After the successful final te
13. rvice gt Turn off master switch on rear side e Allow only trained specialists to work on the mill e Do not open Laboratory Mortar Grinder until it is com pletely stopped gt e Always wear safety glasses when working e Operate Mortar Grinder only with fixed pestle e Do not put your hands into Mortar Grinder while it is running e Set up the Laboratory Mortar Grinder indoors only e Set it up on a sturdy work table e Ambient temperature 0 to 40 C e Dimensions 395 x 435 x 870 mm H x W x D e Weight net approx 30 kg e Danger Electricity e The instrument contains electrical switches in the low voltage range 230 Vrms e Noise level 70 dB e Beware of A e Squeezing on counterweight j e Squeezing on lid toggle catch a e Squeezing on pestle fixing device and its spindle Read instructions manual before use Laboratory Mortar Grinder pulverisette 2 page 4 Safety Instructions Unpacking e Attention Weight of Laboratory Mortar Grinder 30 Kg e Compare the content of the box with your order 1 Pull out the staples with the help of a pincers resp cut the closing band of the box 2 Open the cover of the box and 3 take out the accessories such as grinding set pestle and Plexiglas lid 4 Don nt use the rod as a hold Take out the Mortar with both hands at the lid Mounting the Plexiglas Cover 1 Remove the paper 2 Fasten the cover with 4 screws you will find the screws
14. st the TUV Saarland certified that the Laboratory Mortar Grinder by with its construction and manufacturing meets the requirements of DIN EN 61010 03 94 resp IEC 1 1990 A1 1992 This was confirmed by an official Certification of Conformity The enclosed Declaration of Conformity ensures that the Laboratory Mortar Grinder delivered with this paper was built according to the regulations Laboratory Mortar Grinder pulverisette 2 Page 7 FRITSCH 3 Setting up the Laboratory Mortar Grinder Set up the Laboratory Mortar Grinder indoors on a flat sturdy surface It is not necessary to fasten it in place The room temperature must be between 0 and 40 C Make certain that the grinder is easy to access 4 Electrical connections 4 1 Checking for concordance of voltage and current Before connecting the grinder check the setting of the voltage selector on the back of the grinder and compare it to the voltage of your local mains gt Only a trained specialist is permitted to change over the supply voltage and or alter the connecting cable WA The slot in the axle of the switch must point to the value of your network 100 110 200 230 240 V A C with protective earth fuse max 16A Turn on the master switch black switch on the rear side The green lamp Power On will light up 4 2 Motor The motor single phase brushless A C motor with PE conductor 50 60Hz can be started by turning the timer In the case of
15. tion of mortar bowl and pestle When selecting the material of the grinding set you must consider the hardness of the sample and the tolerated contamination arising from the abrasion of the grinding set Even a very small contamination may qualitatively influence your analytical results Mortar bowl and pestle can be supplied with the following materials N Material Order NR Abrasion Mortar and pestle Complete set resistance Mineral materials Hard Porcelain 4601100 adequate 99 9 SiO2 46 005 00 good 94 20 46 012 00 Metallic materials Chrome Nickel Steel 46 010 00 Chrome Steel 46 009 00 Tungsten Carbide 93 WC 6 Co 46 008 00 7 Installation of the Grinding Set Caution The parts of the grinding set installed in the mortar grinder have been ex actly matched to each other Therefore mortar bowl pestle and scraper must always be used jointly The setting of mortar bowl pestle and scraper has been optimised at works Depending of the hardness of the sample to be ground the pestle and the scraper must be re set from time to time Also when a different grinding set or a new one is installed the setting must be readjusted Laboratory Mortar Grinder pulverisette 2 Page 10 FRITSCH 7 1 Mortar Bowl To replace a mortar bowl simply lift the bowl from its support plate and put it back by placing it on to the support the two trac tion screws being introduced in the two holes on the bot
16. tom of the plastic setting of the bowl The bowl should not dangle 7 2 Pestle To remount or replace a pestle you need the enclosed tools e Fork wrench 19 mm e Fork wrench 24 mm e Hexagon socket screw key Allan key 3 mm and e Face spanner 1 Hold the pestle axle with the provided fork wrench 19 mm d Then loosen the counter screw with the provided fork wrench 24 mm The pestle can than be unscrewed from the axle by turning to the left 2 Re mounting the pestle is being done the opposite way When the lid is closed the pestle must be well set in the lower radius of the mortar bowl To enable you to do this setting the axle of the pestle is arranged eccentric Turning this eccentric the axis will be drawn near the edge of the bowl resp the oppo site way The eccentric is fixed with a hexagon socket screw 1 Fill in the bowl some sample f e small amount of sand The sand will take care of the friction between bowl and pestle in order to turn around the pestle Only by this you will be able to do the setting correctly 2 Close the lid and fasten the locking system 3 To frees the eccentric loosen the 3 mm hexagon socket with the Allan key 4 Insert the provided face spanner into the eccentric and reset the eccentric in a way that the pestle slightly presses against the radius of the mortar bowl Caution The front of the bowl should not come up If the setting is correctly done then the pestle will rotate
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