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1. Sample Addition You should aim for beam absorption of 7 to 15 The measure ment is started automatically as soon as the specified value is reached Measurement and Evaluation When the measurement is completed the raw data is stored in the EPROM of the measuring unit The particle size distribution PSD still must be calculated from this data For this calculation select Download data The analvsette 22 for Windows program will then load the raw data from the meas uring unit and calculate the PSD The results are stored in the current results directory under the file name specified in the ana lysette 22 COMPACT control window see Saving a File in the analvsette 22 for Windows manual a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAIG ONIZIS 41DILHVA NITIN NATAL NASSANTAMILYVd NHIANIAIMHAZ ONIGIMG ONIZIS 41DILHVd ONITIHN N71THL NASSSAN IMI LHVA analysett 22 COMPACT page 13 NHIANIAIMHAZ Cleaning FRITSCH 4 5 1 Cleaning the Machine The machine can be wiped clean with a damp cloth Do notallow anv liquid to flow into the machine 4 5 2 Cleaning the Measuring Cell Normally it is sufficient to rinse the measuring cell with clear liq uid To remove stubborn residues you can also add a cleaning agent to the rinsing liquid Usually a few drops of a surface active domestic agent washing liquid e g Pril or liquid soap will suf fice Mechanically bonded contamination can be
2. Installing the Drv Dispersing Unit Please check whether the consignment contained the following accessories 2 RS232 cables 2 mains cables one with the measuring unit one with the dry dispersing unit 1 tube connection for feeding the sample from the dispersing unit to measuring unit black Viton tube 1 pressured air tube for connection of the dispersing unit and the measuring unit 1 dust exhaust control box 1 mains multi connector 1 tube for local pressured air not shown 5 1 1 Fastening the nozzle to the measuring unit Firstly insert the completely mounted dry nozzle with cover into the measuring unit analysett 22 COMPACT page 17 lt lt NHINIIIMH3Z FRITSCH NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAMG ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONICIAIC ONIZIS AIOILYVd ONITIIN NATAL NASSSAWN IMI LHVA a DIN EN ISO 9001 NHIANIAIMHAZ FRITSCH Be careful with the two bolts which have to fit the corresponding holes in the holder for the measuring cell inside the measuring unit exactiv If vou do not place the measuring cell exactiv vou will have problems fitting the bolts a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAMG ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONICIAIC ONIZIS 41DILHVd ONITIIN NATISL NASSSAWN IMI LHVA analysett 22 COMPACT page 18 NHIANIAIMHAZ FRITSCH a DIN EN ISO 9001 NAT
3. 25 m Clamp the hose into the hose constriction valve side away from the machine Caution The hose is a special accessory Replace it only with an Original hose Depending on the condition of the substances measured the tightness of the silicone hoses should be checked regu larly a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHIANIAIDMHAZ ONIGIAIC ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHINIAIMHAZ ONICIAIC ONIZIS 41DILHVd ONITIIN N71THL NISSAW IMI LHVA analysett 22 COMPACT page 10 NHIANIAIMHAZ Two 150 mm long 9 x 16 mm PVC hoses are supplied with the machine Remove the measuring cell from its separate FRITSCH packaging and connect the hose pieces to the connections of the dispersing unit Fix the hose with the supplied hose clips Snappers Senet i 2 eee ee ae Sa ews hs oS oe oie Aat AES Ta i 3 5 gt Li re 3 10 gt miti From Cell To Cell Use the hose clips for a watertight secure connection The machine can be destroyed if water enters it Attention Danger 4 2 Preparation of the Measuring Unit With the cable supplied connect the communication port of the measuring unit 9 pole sub D socket to an RS232 port of your computer Connect the measuring unit to the mains voltage with the cable supplied Do not switch on the measuring unit as yet 4 3 Measuring Unit Dispersing Unit Connection Place the dispersing unit centrally behi
4. LHVA analysett 22 COMPACT page 27 HIANIAIMHAZ 5 1 6 Connecting dust exhaust z Connect the dust exhaust control box to your mains and plug in FRITSCH the power connector from your dust exhaust system to the socket of the control box max 16A ii IMMA g The dust exhaust control box can be supplied with an adapter to suit country specific mains plugs 5 1 6 1 Technical data of the dust exhaust for the dry dis persing unit The following specifications are reference values and can vary depending on the dust exhaust used NATAL NASSANTAMILYVd NYANISTHYSZ ONIGIAIC ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHINIAIMHAZ ONICIAIC ONIZIS 41DILHVd ONITIIN NAISL NISSAW IMI LHVA Power input max 1100 Watt Air supply 40 I s Vacuum 23kPa Suction power 270W Tilv Filter surface 2400 cm Coser gt Dust bag capacity 9 0 SEN S6 dooi puluerisette onolijse ttc Labor etig analysett 22 COMPACT page 28 NHIANIAIMHAZ 5 1 7 Connecting to the computer FRITSCH Connect the measuring unit via RS232 cable to the computer 1 a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAIC ONIZIS 41DILHVd ONITIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONIGIMG ONIZIS 41DILHVd ONITIIN N7THL NISSIW IMI LHVA analvsett 22 COMPACT page 29 NHIANIAIMHAZ 5 1 8 Connecting to the mains Connect the measuring unit and the vibrating feeder to the mains FRITSCH and plug into the multiple mains p
5. Since the measuring liquid in the unit dispersing and measuring unit only comes into contact with materials which are chemically largely resistant certain organic liquids or saturated inorganic salt solutions can be selected without damaging the unit The measuring liquid comes into contact with high quality stain less steel glass Teflon and Viton FPM or FKM The standard connecting tubes are made of Tygon A liquid suitable for measuring samples not compatible with water can be selected from the following listing Basically we must warn against the use of explosive or in flammable liquids they should not be recommended The listing below is only to indicate the chemical compatibil ity of the unit vis a vis liquids Monohvdric dihydric or trihvdric alcohols ethyl alcohol isopro panol glycol or glycerol excl methanol mineral and organic oils petroleum and soybean oil nut oil olive oil It is imperative that you consult the factory before planning the use of other measuring liquids The following may not be used Ketones acetone propanone butanone cyclohexanone ether fluorochlorocarbons amines freone 21 32 methanol aniline benzol chlorinated hydrocarbons acetic acids and its derivatives undiluted acids and bases Even samples that are present in oil oils similar to machine oil for example do need not be measured in oil as well Example toner in machine oil The sample is fi
6. be packed in the transport box Securing Device During transport the machine is protected by a securing device You can see a red edged hole in the base plate Below which there is a DIN 912 M8 screw Loosen this screw fully with the hexagon socket screw key supplied with the machine and keep it in a safe place On the right side of the measuring unit you will also see a trans port securing device to the left of the detector Loosen this as well and keep in a safe place analysett 22 COMPACT page 7 NYANIS YSZ FRITSCH a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAMG ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONIGIMG ONIZIS 41DILHVd ONITIIN NASAL NASSSAWN IMI LHVA 3 4 This screw is not attached in some versions and instead a gusset is inserted between the base plate and the inner wall of the hous ing Remove the gusset or the fixing screw if this is the case i saz X It is imperative that the securing device be removed before the machine is used for the first time as the auto alignment will otherwise not function or can be destroyed Erection Place the machine on a level stable surface indoors It is not necessary to fasten the machine on the erection site Please avoid severe heat sunlight heating systems and the like dusty environments and entry of dust into the interior of the measuring unit and extreme air humidity gt 85 During th
7. rinsed out by addition of approx 2 g of fine abrasive agent domestic scouring agent ARA VIM M Oily residues can be rinsed out with a slightly alkaline cleaning agent Before starting work in the machine switch off the measur ing unit and pull out the mains plug Disassembly In the course of time it can become necessary also to clean the inside of the measuring cell This is the case when with the measuring cell positioned at the extreme left with the laser beam switched on many small points of light which cannot be re moved even by repeated rinsing are to be seen on the insides of the windows or when the windows are covered by a dull layer Release the cell from the holder by turning the screw on the measuring cell holder Before opening the cell empty the entire measuring circuit Remove the measuring cell and take it out through the top of the machine Switch the measuring unit off and then push the dispersing unit to the rear so that the electrical connection is separated It is not necessary to remove the hose clips If the hoses are very dirty or porous it is certainly appropriate to disconnect the hoses or cut them off after taking out the measuring cells if there is difficulty in disconnecting them In this way you can avoid dirty ing the inside of the measuring unit Lay the measuring cell flat on the table and take the cell opening tool in your hand This tool fits the cover ring with precisely three
8. AL NASSANTAMILYVd NHINIAIMHAZ ONIGIAMG ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONICIAIC ONIZIS 41DILHVd ONITIIN NATAL NIASS4AW IMI LHVA analvsett 22 COMPACT page 19 NHIANIAIMHAZ FRITSCH As dry measurements have more electrostatic charge two ground connections separated from each other are placed at the connection side of the measuring unit Connect the ground cable of the nozzle to the measuring unit 5 1 2 Connecting dispersing unit Like the wet dispersing unit the dry dispersing unit is also con trolled by the measuring unit All commands sent from computer to the dry dispersing units are received and translated by the measuring unit Therefore the dry dispersing unit has to be con nected to the measuring unit Place the dispersing unit to the right of the measuring unit a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAIC ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONICIAIC ONIZIS 41DILHVd ONITIIN NATAL NISSAW IMI LHVA analvsett 22 COMPACT page 20 NHIANIAIMHAZ FRITSCH In all there are three connecting cables One cable is for con necting the dispersing unit to the measuring unit and the other cable is for connecting the dust exhaust a DIN EN ISO 9001 Connect the third cable which earths the dispersing unit to the measuring unit NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAMG ONIZIS AIDILYVd ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ
9. ANTAMILYVd NHIANIAIMHAZ ONIGIAMG ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONICIAIC ONIZIS 41DILHVd ONITIIN N71THL NISSAW IMI LHVA analysett 22 COMPACT page 15 4 6 Cleaning the Ultrasonic Bath The holder for the stirrer motor can be lifted off as a unit Care fully pull the entire holder upwards This could be difficult as the retaining force of the electrical contacts must first be overcome After removing the entire holder you can clean the ultrasonic bath with a cloth Clean the level sensor daily This optical detector may be sub ject to lime or sample residue deposits and provide incorrect in formation e g the ultrasonic bath is no longer being filled or liq uid may overflow on filling Wipe the bottom of the detector with a cloth Seen from above the detector is located above the ul trasonic bath and is protected from above by a plastic cover for M16 screws see Figure Cleaning of ultrasonic bath The lower part is always immersed in the filled ultrasonic bath and in dicates when the bath is filled Overflowing of liquids is dangerous Switch off measuring unit immediately and pull out the mains plug Wet areas must be dried immediately analysett 22 COMPACT page 16 NHIANIAIMHAZ NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAMG ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONICIAIC ONIZIS AIOILYVd ONITIIN NATAL NASSSAWN IMI LHVA FRITSCH a DIN EN ISO 9001 5
10. ICIAIC ONIZIS 41DILHVd ONITIIN N71THL NASSSAN IMI LHVA FRITSCH Ca DIN EN ISO 9001 NHIANIAIMHAZ The dispersing unit has a high grade steel vessel with a capacitv of approx 250 ml for receiving the samples which is designed FRITSCH like an ultrasonic bath The ultrasound power output is around 40 watts and can be optionally switched on or off An electro optical level detector monitors the liquid level in the ultrasonic bath A stirrer in the bath serves for further dispersion and homogenisa tion The speed of the stirrer can be regulated A centrifugal pump flange mounted below the bath transports the suspension through the entire measuring circuit Because of the high flow speed of the suspension vou can also measure larger particles of higher density correctly However because of the centrifugal principle your mechanically sensitive samples will also be treated as gently as possible The inflow and outflow of the suspension and the automatic rinsing and filling are con trolled automatically by electromagnetic control valves Do not use easily inflammable liquids such as alcohols ke tones benzene etc Do not allow any liquids to flow into the machine Method of Operation Laser diffraction instruments utilise the physical principle of dif fraction of electromagnetic waves for the determination of particle size distribution The light of a parallel laser beam is deflected through fixed solid angles wh
11. IMHAZ NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAIC ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONICIAIC ONIZIS AIOILYVd ONITIIN N71THL NASSSAWN IMI LHVA FRITSCH a DIN EN ISO 9001 NHIANIAIMHAZ FRITSCH Normallv it is sufficient to just loosen one screw of the measuring cell upper or lower one and remove the other screw completely rq The plate with which the window is held to defined distances can be turned 180 degrees to the back verv easilv GA a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAMG ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONICIAIC ONIZIS AIOILYVd ONITIIN NATAL NASSSAWN IMI LHVA analysett 22 COMPACT page 33 NHIANIAIMHAZ Remove and clean the windows Insert them in reverse order ET FRITSCH U a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAIG ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONIGIMG ONIZIS 41DILHVd ONITIIN NAISL NASSSAWN IMI LHVA analysett 22 COMPACT page 34 5 3 Measuring with the Drv Dispersing Unit In order to start measuring the dust exhaust is first switched on through the dust exhaust control box Then the compressed air is switched on and followed by the vibrating feeder In order to stop measuring the steps are repeated in the reverse order The feeder does not run during background measurement The background measurement takes about 20 seconds as the mea
12. If the measuring cell is dirty it can lead to higher intensities on the outer channels or the sensor channel are alternately displayed high and low Then auto alignment possibly does not function any longer It is absolutely essential to clean the glasses The motors moving the sensor along the X and Y axes may be destroyed If after approx 3 minutes the beam adjustment has not been op timised then the auto alignment is interrupted with an error mes sage Do not restart auto alignment under any circumstances in stead CALL FRITSCH SERVICE The motors moving the sensor along the X and Y axes may be destroyed Accessories analvsette 22 WINDOWS Program All functions of COMPACT version can be programmed and con trolled with the analysette 22 for WINDOWS program package See the analysette 22 for Windows user s manual Small Quantity Dispersing Unit See the analysette 22 for Windows user s manual analysett 22 COMPACT page 36 NHIANIAIMHAZ NATAL NASSANTAMILYVd NHINIAIDMHAZ ONIGIAMG ONIZIS AIOILYVd ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONIGIMG ONIZIS 41D0ILHVd ONITIIN NATAL NASSSAN IMI LHVA FRITSCH a DIN EN ISO 9001 8 1 10 10 1 10 2 Maintenance Apart from regular cleaning the analysette 22 COMPACT re quires no maintenance Before starting work in the machine switch off the measur ing unit and pull out the plug Selection of Liquids for Suspensions As in the ent
13. NHINI1IMHAZ u a FRITSCH Operating Instructions Laser Particle Sizer analvsette 22 COMPACT a DIN EN ISO 900 N11 4L NASSAWTSAMILYVd NHIANIFAIMHAZ ONIGIAIG ONIZIS FAIOILYVd ONITIN NATAL NASSAN TAMILYVd NHINIAIMHAZ ONIGIMG ONIZIS ATIOILYVd ONITIW NATAL NISSIW IMI LHVA NHINI1IMHAZ Fritsch GmbH FRITSCH Manufacturers of Laboratorv Instruments Industriestrasse 8 D 55743 Idar Oberstein Telephone 6784 70 0 Fax 6784 70 11 E Mail info fritsch de Internet http www fritsch de On 24 June 1994 Fritsch GmbH manufacturers of laboratory instruments were awarded the certificate by the TUV certification body aa DIN EN ISO 9001 Through an audit it was proven that Fritsch meets the require ments of DIN EN ISO 9000 The attached statement of conformity indicates the directives with which the analysette 22 COMPACT laser particle sizer complies entitling it to bear the CE mark Device number 22 1020 00 22 1220 00 22 1050 00 Valid from serial number 120 gt DIN EN ISO 9001 N111 14L NASSAWTAMILYVd NHIANIADMHAZ ONIGIAIC ONIZIS FAIOILYVd ONITIN NATAL NASSAN IMI LHVdA NYANISTHYSAZ ONIGIMG ONIZIS AIOILYVd ONITIW NATAL NISSIW IMI LHVA Edition 03 2003 Index 0 NHIANIAIMHAZ Contents page FRITSCH 1 General Introduction sess essnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnnnnnnnennnne 1 1 1 Notes on the Operating Instructions sess eennnnnnnz
14. NITIIN N71THL NISSAW IMI LHVA analysett 22 COMPACT page 3 NHIANIAIMHAZ 1 4 Technical Data FRITSCH Module Measuring unit Liquid Dry COMPACT dispersing unit dispersing unit 22 102 00 22 122 00 22 105 00 03 300 um Measuring time approx 10 s Sample quantity approx 0 1 liquid quantity 2cm in 400 ml liquid Weight net 15kg net 10 8kg net 10kg gross 24kg gross 19kg gross 28kg Dimensions 460x210x190 250x290x220 300x400x250 mm WxDxH Current O 1A 0 5A consumption Power 20W 10 consumption Operating Noise The noise level is 42dB A Voltage Single phase alternating current of 230 V 10 Electrical Fuses Fuse below mains switch machine side and in machine side Replacement 2 x miniature fuse 1 25A T 5x 20mm Replacement 1 x miniature fuse 250mA T 5x 20mm a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAG ONIZIS 41D9ILHVd ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONIGIMG ONIZIS AIOILYVd ONITIIN NATAL NISS4AW IMI LHVA analysett 22 COMPACT page 4 NHIANIAIMHAZ 2 Operational Safety FRITSCH 2 1 Notes on General Safety e Read the operating instructions carefully e The device may only be used for the purpose described in chapter 1 3 Short Description of the Machine e Use only original accessories Safety of the machine can be jeopard ised if accessories other than the original are used e The operating staff must be familiar with the contents of the operat in
15. ONIGIMG ONIZIS AIOILYVd ONITIIN NATAL NISSAW IMI LHVA analysett 22 COMPACT page 21 HIANIAIMHAZ WFRITSCH H H IN Connect the other cable to the dust exhaust control box The connection cannot be substituted 5 1 3 Connecting Vibrating Feeder Next place the vibrating feeder to the right of the dispersing unit and first make the electrical connections a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAIC ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONICIAIC ONIZIS 41DILHVd ONITIIN NAISL NISS4AW IMI LHVA analvsett 22 COMPACT page 22 NHIANIAIMHAZ WFRITSCH E IM The vibrating feeder has two plugs on the rear side one is for the external connection 0 10V and the other 9pin Sub D is for con nection to the dispersing unit a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHINIAIMHAZ ODNIGIAMG ONIZIS 41DILHVA ONITIIW NATAL NASSAN IMI LHVdA NHIANIAIMHAZ ONIGIMG ONIZIS 41DILHVd ONITIIN NATAL NISSAW IMI LHVA analvsett 22 COMPACT page 23 NHIANIAIMHAZ The vibrating feeder should be placed such that the channel of the feeder is positioned directly above the funnel of the dispers FRITSCH ing unit a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAIC ONIZIS 41DILHVd ONITIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONIGIMG ONIZIS 41DILHVd ONITIIN N7THL NISSIW IMI LHVA analvsett 22 COMPACT page 24 5 1 4 Connecting compressed air Lastly the com
16. Where very expensive products are involved it may also be beneficial to identify a replacement substance which assumes the function of saturating the measuring liquid a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAIG ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONIGIMG ONIZIS 41DILHVd ONITIIN NAISL NASSSAWN IMI LHVA analysett 22 COMPACT page 39
17. ath rr n rna 16 5 Installing the Dry Dispersing Unit sess sessenennnnnnnnnnnnnnnnnznnzzn 17 j 5 1 1 Fastening the nozzle to the measuring unit ss ceeeeceeeeeeeeeeeeeeeseeeeseeeesaaees 17 3 5 1 2 Connecting dispersing unit L s sense nnnnnnnnnnn nanna nn nn n ran nnnnnAnnEnnAnEEEEEEnEnEEEEEE ZI 20 z 5 1 3 Connecting Vibrating Feeder nn nn rna ran n ran rna r nn nn nr nnn na 22 m 5 1 4 Connecting compressed air eccceceeeeeeeeeeeeceeeeeeeeeeeeeseeeeesaeeeeeseeeeeesaeeeeeseeeeesaees 25 g 5 1 5 Setting up measurements ce ccceceeeee ee eeeeeeeeeeeeeeeeeeeseeeeeseeeeeesaeeeeeseeeeeeseeeeesaees 27 Z 5 1 6 Connecting dust exhaust cccccccssecccssseeeceececceeseecseseeceesseeseaesesseueeessaseesseaes 28 9 5 1 7 Connecting to the COMPUNGT il kiri i a 29 5 1 8 Connecting to the MaINS L AAAE A KAAREnEKEnEEEEENEEEEZENEE ZI 30 z BAO Pressure Selinger e keta g 31 5 5 1 10 Connecting the dust exhaust tube to the nozzle ss sess eeeennnnnnznnznzznnnzenzzza 31 ii 5 2 Cleaning measuring cell windows of the Dry Dispersing Unit 32 u 5 3 Measuring with the Dry Dispersing Unit ss nnneennzzennnnzennnnnnza 35 ia 6 Checking Communication sssssennnnnnnnzanunznnnnnnnnnnnznnnnnnnnnzn 36 u 7 ACCESS ONTOS onian rE rr a 36 TUV 7 1 analvsette 22 WINDOWS Program eeennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnna 36 gt Come 7 2 Smal
18. ble FRITSCH to reach the measuring cell easilv when vou open the measur ing unit e The machine should not be set up at a site that is not pro tected from water Select another site if there is a risk of a laver of water forming on the ground in the event of an error If no other site is available the entire machine should be raised place blocks below the machine Electrical Connection Before connecting the machine compare the voltage and current values shown on the identification plate with the values of the mains supply to which it is to be connected See chapter 1 4 Technical Data Caution Connect the measuring unit to a mains cable pro tected with a residual current operated circuit breaker 3 5 1 Electrical Fuses The fuses are located in the connectors cooling device connec tor of the measuring unit and can be pulled out after the cover adjacent to the connectors is opened Replacement 2 x miniature fuse 1 25A T 5x 20mm Replacement 1 x miniature fuse 250mA T 5x 20mm 3 5 2 Stability of the Mains Voltage Machines with electronic components require stable supply volt ages 5 deviation For weak mains supplies or those not free of interference voltage peaks due to inductive load changes or switched mode power supply units we recommend that a voltage regulator and filter order no 20 600 00 be connected in series 3 5 3 Adaptation to the Mains Supply It is not possible to switch over the vol
19. can be reloaded In order to add sample material set the feeder in the program Help Service Manual Settings to Feed Rate O and Quantity 0 and fill your sample material into the funnel Set a small Quantity depending on the adhesive power of your sam ple normally to 0 3 to 1 and a medium Feed Rate of 50 After pressing Start Measurement measurement is carried out with the pre set values analysett 22 COMPACT page 35 NHIANIAIMHAZ NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAIC ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONIGIMG ONIZIS 41DILHVd ONITIIN N71THL NISSAW IMI LHVA FRITSCH a DIN EN ISO 9001 7 2 Checking Communication After you have established the serial communication between the measuring unit and the computer you should check the commu nication For this open the associated program analysette 22 for windows and select Set system configuration in the Configu ration menu In the Set system configuration window select Compact version wet Subsequently in the frame that appears at the top to the right hand side select the RS 232 interface of your computer to which you have connected the cable from the measuring unit The analvsette 22 COMPACT has an auto alignment which does not necessitate the manual adjustment of the laser beam The beam intensity is NOT shown during a measurement the index card is inactive Caution
20. d user vou can clean the windows inside the measuring unit If vou have just started please remove the complete nozzle including the cover and clean the measuring cell windows outside the measuring unit This has to be done if a message Background Error or Clean Measuring Cell appears on the screen Please check vour Beam Alignment after everv 20 measurements to control the light intensities If you see in creasing channels in the fine range to the right of your Beam A lignment window with more than 50 of total height you should clean the windows Move the measuring cell to a middle cell position To achieve this please set your measuring range to an opposite range of the ac tual selected range e g Full Range is selected and the meas uring cell is positioned in the range of 0 3 45 um right cell posi tion Set your measuring range to 2 to 300 um activate Back ground Measurement only and press Start Measurement The cell will be moved to the opposite position now Press Stop Measurement if the middle cell position is reached The cell windows are made of sapphire glass Carry out the cleaning carefully although the surface cannot be scratched in general Please use soft paper tissues or lens cleaning paper from your photo shop to clean the windows Loosen the screw of the measuring cell holder and remove the complete nozzle with the cover T e o a analysett 22 COMPACT page 32 NHIANIA
21. e err ee 8 A 3 5 Electrical Connection cccccccccsececeeseeceeeeceecessecesseeeessaeeeeaeeeseneeeseeeeees 9 N 3 5 1 Electical FUSOS eee ta 9 m 3 5 2 Stability of the Mains Voltage sess nnnnnnnnnznnnnnnnnnnnnnnnnnnnrnannnnnnnntnnnannEnnnantn Ana 9 A 3 5 3 Adaptation to the Mains Supply ssssssmennnnnznnnnzennnnnnznnnemnsmmmermznnnzmmmmmrrnzznnti 9 4 Wet Dispersing Unit smemenenznnnnnnanannnanmamanzanzanzanznznnzazzazz 10 D 4 1 Connection of the Wet Dispersing Unit to the Water Supplly 10 v 4 2 Preparation of the Measuring Unit s ss nenennnnnnnnnennnnnnznnenzzznnnznnzna 11 Z 4 3 Measuring Unit Dispersing Unit Connection ss enennnnnzzennnnzzzni 11 F 4 4 Operation of Wet Dispersing Unit ss ss ennnennnnnzzznnnnzznnnnnznznnznzznnznna 12 4 4 1 Filling the Measuring Cell cccccecccccsseeeeseeeeeeseeeeeeeeeeeesseeeeeseeeeeeseeeeeeseeeesaeees 12 tn 4A2 CAR AU SUC e a ia 12 iri 4 4 3 Preparation of a Measurement ssssssenennnnnzznnnnznzznzzzenzzzznzznznzzzznznzzznzzzznzzznzn 13 i 4 4 4 Execution of a Measurement sssseeeennnnnnznnnnzznnznzznzzzenzzzzntzzantrzznznzznnzzznnzzzznzn 13 m 7 A 1 La o OO 14 m 4 5 1 Cleaning the Machine i sas iiee b idek e isse be ab ba a ie lid To Ta 14 4 5 2 Cleaning the Measuring Cell nn nnnnnnnnn mnn nn nnnnn nanna nnnnnnrnnnnnrnnnnnnnnann nn nn 14 4 6 Cleaning the Ultrasonic B
22. e it with the special paper very very carefully Subsequently rinse the window clean with a spray bottle and carefully dab on the dry special paper Until reinstallation in the measuring cell you should keep the win dow carefully covered Wash the sealing ring under flowing particle free distilled water and then dry with soft fluff free paper Assembly Assemble in the reverse order Turn the ring until the raised points a re located under the brass screws The glasses are optimally clamped in this way and the cell is watertight The principle is similar to a bayonet clasp When you have assembled the cell push the dispersing unit back on the measuring unit see point 4 3 Do not install the cell but first lay it on the bottom of the measuring unit Switch on the circulating pump by selecting the check box Pump on the file index Options or selecting Pump on from Beam intensities Carefully check whether the measuring cell is once more water tight following assembly If it is not IMMEDIATELY switch off the measuring unit and disassemble the measuring cell once more Caution Never add samples in excess of the upper measurement values with a size of more than 300 micrometres The measuring cell channels may be overloaded and the meas urements distorted This process is irreversible and leads to malfunctions in the measuring cell as this part cannot be disassembled a DIN EN ISO 9001 NATAL NASS
23. e operation of the machine the ambient temperature should not be higher than 35 C or lower than 10 C The ma chine can be stored at temperatures between 1 C and 40 C If it is expected that the temperature is going to be lower than the allowed temperature range e g during transport it is im perative that the entire Suspension circuit dispersing unit hoses and measuring cell in the measuring unit is rinsed thoroughly with pure ethanol beforehand and the rinsing liquid is then removed completely The under cooled machine should not be switched After under cooling the machine to temperatures below 10 C you must wait for it to warm up to the ambient temperature be fore switching it on condensation in the machine can lead to malfunctions and damages Characters and graphics on the display can be seen easily if you set the computer up at a site such that sunlight and artifi cial light do not fall directly at the screen In some cases sim ply turning the display away from the light can help this will increase the contrast and fight fatigue analysett 22 COMPACT page 8 NHIANIAIMHAZ NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAIC ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONICIAIC ONIZIS 41DILHVd ONITIIN N71THL NASSSAN IMI LHVA FRITSCH a DIN EN ISO 9001 NHIANIAIMHAZ e To facilitate operation of the machine while installing it vou should ensure that it is easilv accessible Vou should be a
24. elevations Turn the tool using the ring After turning approx 45 you can take the ring away Under neath you will see the O ring and the installed cell glass Both can be removed manually a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAMG ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONIGIMG ONIZIS 41DILHVd ONITIIN N71THL NISSAW AM LHVA analysett 22 COMPACT page 14 NHIANIAIMHAZ Cleaning the measuring cell glasses Cleaning of the window requires a lot of care FRITSCH The windows may only be touched with the hand at the edges they have a very sensitive anti reflective coating on their outer side Lift the windows from their cell halves carefully and place them on an optical paper with the outer side facing down The method given below is a proven method for cleaning windows Rinse the windows with a spray bottle with af distilled water as long as impurities are no longer visible Then place the special paper on the inside of the window and sprinkle it with distilled water and a drop of tensid Pril so that the paper sticks to the glass surface Now for Wiping off the surface just smooth off the paper paral lel to the surface without pressing the paper against the glass You should repeat this smoothening off from the glass surface with fresh paper until you see no more impurities You can soak extremely stubborn sample residues with a tensid e g Pril and wip
25. ere is a risk of a layer of water forming on the ground in the event of an error If no other site is available the entire machine should be raised place blocks below the ma chine Operation of Wet Dispersing Unit 4 4 1 Filling the Measuring Cell In the analysette 22 COMPACT control window select only the rinsing process option prior to the measurement set the number to one and select Transmit data and Measurement The ultrasonic bath will then rinse itself and fill itself with clear measuring liquid The level sensor automatically closes the valve The circulating pump conveys the liquid into the dispersing unit connecting hoses measuring cell circuit Observe the first rinsing process and check whether the cor rect level is achieved Do not allow any liquids to flow into the machine 4 4 2 Beam Adjustment The COMPACT version has an auto alignment function After fill ing the measuring cell only select the option Auto alignment in the analysette 22 COMPACT control window Beam intensities The laser beam is subsequently positioned on the sensor and you can carry out your first measurements analysett 22 COMPACT page 12 NHIANIAIMHAZ NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAIC ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONICIAIC ONIZIS 41DILHVd ONITIIN N71THL NASSSAN IMI LHVA FRITSCH a DIN EN ISO 9001 NHIANIAIMHAZ 4 4 2 1 Checking Focussing For checking beam adju
26. g instructions To this end it must be ensured inter alia that the operating instructions are attached to the machine e Do not remove information signs from the machine e While working with the machine the staff should at all times behave in a manner that will minimise the risk of accidents e Unauthorised conversion of the machine or any part will result in the loss of the conformity with European directives as declared by Fritsch and the Fritsch warranty will no longer apply e When oxidisable materials such as metals organic materials wood coal plastics etc are being measured there is a risk of spontane ous ignition powder explosion if the fine fraction exceeds a certain percentage Special safety measures e g measurement in suspen sion should therefore be taken and work should be supervised by an expert e In addition the threshold limit values of the current safety regulations should be observed and if applicable ventilation should be pro vided or the machine should be operated below an extractor e The machine is not protected for use in explosive atmospheres and is not suitable for measurement of explosive or inflammable materi als or materials which provoke fires e The machine should not be used in an electrically conductive dusty or humid environment e Do not allow any liquids to flow into the machine e Do not use inflammable liquids such as alcohols ketones benzene etc 2 2 Notes on de
27. ich depend on the diameter and op tical properties of the particles Traditionally a convergent lens focuses the scattered light in a ring on the focal plane where a detector measures the Fourier spectrum light energy distribu tion The particle size distribution is calculated in accordance with the Fraunhofer or Mie theory using complex mathematical methods FRITSCH uses its own patented optical construction the re verse Fourier optical system The sample is brought into a con verging laser beam and the distance from the measuring cell to the detector is equivalent to the focal length of the convergent lens in traditional applications The measuring range is changed by simply shifting the measur ing cell along the optical axis There is no need to change lens systems or readjust the machine With this construction the en tire measuring range can be covered by a single method The adaptation of different equivalent diameters for different systems e g additional detectors complex lens systems additional opti cal systems etc is not required Coarser particles can be measured by increasing the distance between the measuring cell and the detector reducing the distance makes it possible to measure small particles down to the submicron region without complex lens changes a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHIANIAIDMHAZ ONIGIAIC ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHINIAIMHAZ ONICIAIC ONIZIS 41DILHVd O
28. ion of glycerine and water at a ratio of 1 1 If relatively large particles or particles of relatively high density are to be measured the percentage of glycerine can be simply raised to a ratio of 7 3 In general liquids with a viscosity of 30 cPoice can still be circu lated by the pumping system of the dispersing unit 10 4 Dispersing Samples with Poor Wettability Despite their water repellent properties hydrophobic samples can be dispersed if made into a paste beforehand with a liquid surface active agent Pril and then dispersed in water while be ing constantly stirred In addition agglomerates are dispersed more easily and more quickly in an external ultrasonic bath since the total sample there is subjected to the ultrasonic In the circuit of the dispersing unit only the portion of the sample in the bath is in the area of the ul trasonic In the case of soil samples for example a 0 1 0 5 sodium py rophosphate solution is recommended to promote dispersion The sample thus prepared can be measured in pure water 10 5 Measuring of Samples with Low Solubility Samples exhibiting low solubility in liquid can also be measured in the laser particle sizer analvsette 22 Here it is advisable to prepare a saturated measuring liquid In such a solution the par ticle size cannot change by dissolving Hence the measurement results cannot be corrupted However the saturated solution has to be filtered prior to use
29. ions carefully e The operating staff must be familiar with the contents of the operating instructions e Please observe the notes on personal safety e Considerable attention was paid to the safety of the user when the laser particle sizer was being designed However it is im possible to eliminate all risks In order to prevent danger to the user the advice contained in these instructions should be fol lowed e The symbols in the right hand margin elucidate the dangers referred to in the text Some symbols warning the user of possible dangers may also be attached to the machine Warning symbols have triangular borders e These operating instructions are not a complete technical de scription Only those details necessary for the operation of the machine and for preservation of its serviceability are de scribed Explanation of symbols used on the machine and in the operating manual Caution Warning Danger zone Comply with operating instructions Caution High voltage Caution Risk of explosion Caution Inflammable materials PPrPPp analysett 22 COMPACT page 1 NHIANIAIMHAZ NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAMG ONIZIS AIOILYVd ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONICIAIC ONIZIS 41DILHVd ONITIIN NATAL NASSSAN IMI LHVA FRITSCH a DIN EN ISO 9001 1 3 Caution Warning Laser beam Wear eye shield Water squirt forbidden Shor
30. ire machine the measuring liquid can come into contact with materials that are not chemicallv resistant certain organic liquids and saturated inorganic salt solutions should not be selected The measuring liquid comes into contact with stain less high grade steel glass Teflon and Viton FPM and FKM and Perbunan The standard connecting hoses consist of PVC or polyethylene Only water is approved by Fritsch as suspension liquid for the dispersing unit Before other measuring liquids are used it is imperative that you first contact Fritsch Warranty The warranty card included with this machine when it was deliv ered must be completed and returned to the supplier for the war ranty to become effective Fritsch GmbH Manufacturers of Labo ratory Instruments Idar Oberstein and its Application Technol ogy Laboratory or the respective area representatives will be glad to give advice and assistance In the event of an enquiry it is necessary to provide the details embossed on the identification plate Troubleshooting Checklist Checklist Malfunction Possible Cause Elimination of Error Indicators Plug in the mains plug not glowing Switch on master switch Mains fuse Replace mains fuse Transferability of Measurement Results If the measurement of particles is used to ascertaining which of its assumed properties are real the person conducting the measurement is not just an observer and the measurement equipment not just h
31. is tool both are active participants There fore in the determination of particle size distributions both par ticipate in the achievement and type of result as well While developing measurement equipment the designer strives towards eliminating the influence of the operator for the most part On the other hand it is not possible to exclude the individual effect of the applied physical measurement method or its per formance in the equipment analysett 22 COMPACT page 37 NHIANIAIMHAZ NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAMG ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONICIAIC ONIZIS AIOILYVd ONITIHN N71THL NASSSAWN IMI LHVA FRITSCH a DIN EN ISO 9001 NHIANIAIMHAZ For example if particle size distributions are determined using the sedimentation method scanning photo sedimentograph FRITSCH analvsette 20 and the evaluation of a diffraction image we must expect results that deviate at least slightiv from one an other When particle sizes are measured using the analvsis of a diffrac tion image all dimensions of irregular particles are seen and accordingiv taken into account in the result Here for example the longitudinal extension of needle shaped samples is also de termined The particle configuration has to be taken into account when comparing or transferring particle size distributions ascer tained using different measurement methods 10 3 Selection of Liquids for Suspensions
32. l Quantity Dispersing Unit sse eeennnnnnnnnznnnnzzznnnnznzznnzzznnzznnnti 36 m DIN EN ISO 9001 m A puluerisette u analysettge Labor ettge analysett 22 COMPACT m 8 1 10 10 1 10 2 10 3 10 4 10 5 Wi AHCI ANCE i ai 37 Selection of Liquids for SUSPENSIONS ss eenennnzzennnnnnzenmnnzzzznnznznnnaa 37 UY AT ose spcrct E E E 37 Troubleshooting Checklist ss sess eeennnennnennnnnnnnnnznnnnnnnzznzzz 37 CRO KII eee ter eae ae ern eee ey eee ere en ee eo ee eee eee eee eee 37 Transferability of Measurement Results 20 e neeennnnznnnnenenzznnnnnzzs 37 Selection of Liquids for SUSPENSIONS ss eeennnnnnzennnnnzznnenzznznnnnzzznna 38 Dispersing Samples with Poor Wettabilitv sess eenenennnzznnenzzennnnzzzna 39 Measuring of Samples with Low Solubility ss nenenzzennnnnzzenznnzna 39 analvsett 22 COMPACT NHIANIAIMHAZ NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAIG ONIZIS 41D9ILHVdA ONITIIW NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIMG ONIZIS 41DILHVd ONITIIN N71THL NISS4AW IMI LHVA FRITSCH a DIN EN ISO 9001 1 2 General Introduction Notes on the Operating Instructions e The copyright on these technical documents resides with Fritsch GmbH Manufacturers of Laboratory Instruments e These operating instructions may not be reproduced without the permission of Fritsch GmbH Manufacturers of Laboratory Instruments e Study the operating instruct
33. lug a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAMG ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONICIAIC ONIZIS AIOILYVd ONITIIN NATAL NASSSAWN IMI LHVA analysett 22 COMPACT page 30 NHIANIAIMHAZ 5 1 9 Pressure Setting At the rear side of the dispersing unit there is a valve for reduc FRITSCH ing pressure At the time of measurement an electrical valve opens and switches the compressed air to the nozzle Set the pressure with the throttle valve according to your material The optimum working range of the nozzle is between 3 and 4 bars Don t set the compressed air to a lower value because the sys tem doesn t work with lower pressures Very high pressure will produce more water inside the circuit and should be avoided Be fore setting the pressure you must pull out the black knob at the top of the regulator 5 1 10 Connecting the dust exhaust tube to the nozzle Make sure that there is a gap between the tube end and air outlet of measuring unit If there is no gap the measuring cell windows will get dirty within a very short span of time and will have to be cleaned a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAIC ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONICIAIC ONIZIS 41DILHVd ONITIIN N71THL NASSSAN IMI LHVA analvsett 22 COMPACT page 31 5 2 Cleaning measuring cell windows of the Drv Dispersing Unit If vou are an experience
34. nd the opening of the measuring unit Insert the measuring cell in the holder of the measuring unit which is already mounted By turning the screw on the holder fix the measuring cell in the receptacle The lower connection of the measuring cell should be joined with the lower connection of the dispersing unit and the upper one with the up per connection of the dispersing unit Observe the flow direction The liquid should flow into the measuring cell from below Fix the hoses with hose clips Lay the hoses inside the measuring unit in such a manner e that the movement of the measuring cell is not affected e that the hoses do not enter the laser beam e that the hoses are not bent e that the hoses do not cross a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAIG ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONIGIMG ONIZIS 41DILHVd ONITIIN NAISL NASSSAWN IMI LHVA analysett 22 COMPACT page 11 4 4 To correct the position of the hoses you must change their length in the measuring unit or rotate them slightly before put ting on the hose clips Before the first measurement please check the position of the supply hoses for the measuring cell dur ing shifting of the cell The measuring unit must be switched off while connection is being established Then switch on the measuring unit The machine should not be set up at a site that is not pro tected from water Select another site if th
35. ns from the ma chine Operating Staff e The machine should be used only by authorised persons and serviced and repaired only by trained experts e Persons suffering from health problems or fatigue or under the influence of medication drugs or alcohol should not oper ate the machine Protective Devices Protective devices such as covers should be used only for the in tended purpose and should not be made unserviceable or re moved Danger Points There is a danger of crushing the cell holder when the measuring cell is being shifted Laser beam capacity lt 1mW laser class 1 do not look at the beam Electrical Safety Caution Connect the measuring unit to a mains cable protected with a residual current operated circuit breaker 2 6 1 General The mains switch disconnects the machine from the mains sup ply at both the poles 2 6 2 Overload Protection The mains supply fuse is used for overload protection analysett 22 COMPACT page 6 NHIANIAIMHAZ NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAIG ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONIGIMG ONIZIS 41DILHVd ONITIIN NAISL NASSSAWN IMI LHVA FRITSCH Ca DIN EN ISO 9001 3 2 3 3 Installation Unpacking e Open the transport box at the top and remove all the packed parts e Compare the contents of the consignment with your order Transport If the machine is to be transported over any significant distance it should
36. pressed air connections have to be made At the rear side of the dispersing unit there are three air connections one is for compressed air one for feeding the sample to the noz zle placed inside the measuring unit and one for feeding com pressed air to the nozzle First connect the compressed air supply between the dispersing unit and the nozzle 1 SME ala TEENE ET TPES esos a a TY oe gg ee peat i Ake A aed A a a SSS ha ae a A m ai analysett 22 COMPACT page 25 NHIANIAIMHAZ NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAMG ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONICIAIC ONIZIS AIOILYVd ONITIIN NATAL NASSSAWN IMI LHVA a DIN EN ISO 9001 NHIANIAIMHAZ Then connect the feeding tube between the nozzles inside the measuring unit and the dispersing unit pa e Lastly connect your compressed air supply to the dispersing unit Cea DIN EN ISO 9001 NATAL NASSJWTAMILYYd NHINIAIMHAZ ONIGIAIC ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONICIAIC NIZIS AIOILYVd ONITIIN NATAL NASSINWTAMILHYYd analysett 22 COMPACT page 26 NHIANIAIMHAZ 5 1 5 Setting up measurements Fix the front cover to the measuring unit Now vour measuring unit set up should look like this a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAIC ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONIGIMG ONIZIS 41DILHVd ONITIIN NATAL NASSSAN IMI
37. rst dispersed in ethylene glycol with a drop of a surface active agent Pril in the ultrasonic bath A mixture in 1 1 proportion with water is then prepared and this is placed in the ultrasonic bath of the laser particle sizer analvsette 22 a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAMG ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONICIAIC ONIZIS AIOILYVd ONITIIN NATAL NASSSAWN IMI LHVA analysett 22 COMPACT page 38 NHIANIAIMHAZ Example crude cocoa mass The crude cocoa mass is generallv measured in acetone or ben FRITSCH zene familiar from the straining operation The measurement in the analysette 22 can also be performed in peanut oil for ex ample Since peanut oil is safe to use with foodstuffs the waste oil can be used as lubricant on the rollers thus solving the prob lem of disposal Example slightly magnetic materials In general particle size distributions of magnetic materials in Suspension are not measured because of the reciprocal attrac tion between the individual particles On the one hand the high sensitivity of the analysette 22 makes it possible to suspend materials in very low concentrations although at relatively large distances between the individual particles and on the other hand the high performance of the centrifugal pump permits this to be done with high viscosity liquids In the example presented here strontium ferrite was measured in a suspens
38. stment and focussing see the analvsette 22 user manual for WINDOWS chapter Beam Adjustment On the left hand side of the base plate of the measuring unit di rectiv in front of the beam exit of the laser diode vou can see a brass block with a hexagon socket screw key You can adapt the focal length of the laser diode to your system with this screw FRITSCH Caution The focal length is pre adjusted at the factory Screw adjustments should be made only in accordance with instructions 4 4 3 Preparation of a Measurement Please consult the instruction manual for the analysette 22 for Windows program Chapters 5 1 5 2 5 3 4 4 4 Execution of a Measurement All the following parameters should be programmed in the analy sette 22 COMPACT control window Background Measurement In order to eliminate the effect of the measuring liquid in case of measurement in suspension or the influence of dust in the measuring area in case of measurement in an air stream back ground measurement should be carried out before every meas urement especially if the measuring range has been changed Any contamination from previous measurements is measured and its effect on the current result is eliminated The values of the background measurement are used as the ba sis for the calculation of all subsequent measurements They are lost when the machine is switched off Values can be obtained again only by carrying out background measurements again
39. surement cycle is first cleaned each time Immediately after the Background Measurement and before starting measure ments the feeder is switched on and controlled to predefined set tings After finishing with the measurements the data is auto matically downloaded and the particle size distribution is calcu lated With the vibrating feeder you can set the Feed Rate which means the vibration amplitude and Quantity which means the distance between the funnel and the vibrating channel Please make sure that the quantity is set as low as possible and the feed rate is as high as possible This ensures the supply of a small sample layer to the nozzle and results in optimum conditions The dry dispersing unit is a fully automatic system Manual setting of the vibrating feeder with the keyboard does not store the settings for measurement All manual settings are lost while measuring If you want to pre set the feeder oh the function Help Service and Manual Settings to save your specific presets for the measurement e g Feed Rate and Quantitv Normally even this is not necessary If you set the absorption be tween 2 and 5 percent the vibrating feeder will supply as much sample as possible to meet this precondition Firstly the ampli tude is increased and then after reaching a value of 99 the quan tity too is increased in single steps The settings for this meas urement are stored in the result file and
40. t Description of the Machine analvsette 22 COMPACT Laser Particle Sizer The analvsette 22 laser particle sizer is a universally applicable machine for determining the particle size distribution of suspen sions emulsions solids and aerosols It is primarily used in re search and development and in process and quality control analvsette 22 COMPACT uses FRITSCH s patented converging laser beam for determination of the particle size distribution 1 3 1 Construction and Operating Method Construction The measuring unit contains a semi conductor laser diode wave length approx 635nm laser power output lt 1mW laser class 1 Warning notes on laser radiation can be found inside the ma chine The entire optical and electrical construction is mounted on an aluminium base plate Instead of the measuring cells for meas urement in suspension a nozzle arrangement for blowing out the sample and a suction device can be fitted for dry dispersed sam ples Both the multi element detector with 31 individual elements and the associated preamplifier are located along with the appropri ate protection on the right hand side of the measuring unit The measuring unit also accommodates the driving system for shifting the measuring cell or the nozzle arrangement into the two end positions analysett 22 COMPACT page 2 NHIANIAIMHAZ NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAIC ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ON
41. tage range on the machine For voltages other than 230 V you must use a Series trans former Contact company for voltages other than 230 V a DIN EN ISO 9001 NATAL NASSANTAMILYVd NHINIAIMHAZ ONIGIAIC ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONIGIMG ONIZIS 41DILHVd ONITIIN N71THL NISSAW IMI LHVA analysett 22 COMPACT page 9 NHIANIAIMHAZ Wet Dispersing Unit FRITSCH Connection of the Wet Dispersing Unit to the Water Supplv A 3 4 screw and a 1 2 hose adapter with approx 3 mof hose are supplied with the machine Attach the screw to the water connection of the building Connect the other end of the hose to the Water In connection see below of the dispersing unit The maximum permissible water supply pressure is 0 5 bar Use a fine filter with a pressure reducer not supplied Fas ten the hose with hose clips Caution The pressure reducer is not included in the deliv ery Also supplied is a wastewater and connection hose approx 8 x 5mm silicone length approx 1 m Cut off approx 0 75 m of this hose Connect the hose piece to the Drain connection of the dispersing unit Clamp the hose in the receptacle of the hose constriction valve which is closer to the machine Clamping in the valve is essential because water will otherwise run out Place the end in your drain basin Then connect the Flow Out connection directly to Flow In con nection with the remaining hose piece 0
42. vice safety In the measuring unit of analysette 22 there is a helium neon laser with a capacity of lt 1 mW analysette 2 COMPACT is thus classified as Class 1 and the laser beam can be operated within the scope of the safety regulations of the German Trade Supervi sion without additional external safety equipment Before using the device the user should be informed of the dangers involved while dealing with laser beams The laser can be switched on only with a normal switch on and switch off button on the side of the measuring unit corresponding with the regulations Ca DIN EN ISO 9001 NATAL NASSANTAMILYVd NYANISTHYSZ ONIGIAMG ONIZIS 41DILHVA ONITIIW NATAL NASSANTAMILYVd NHIANIAIMHAZ ONIGIMG ONIZIS AIOILYVd ONITIIN NATAL NASSSAWN IMI LHVA analysett 22 COMPACT page 5 2 3 2 4 2 5 2 6 Warning indications regarding laser beams are found on the out side of the front side of the protective cover and inside the ma chine on the optical tube e Never look at the laser beam e Absolutely avoid bringing in objects reflecting in the laser beam e Wear safety goggles while carrying out maintenance or ad justment work on the open leaser beam lt 10 mW 632 8 nm e Only an authorised person is permitted to use a machine equipped with a laser beam e The user of the machine should first be informed of the dan gers involved while dealing with laser beams e Do not remove indications and danger sig
43. znnenznzznnnnnzzznnnnnnznna 1 1 2 Explanation of symbols used on the machine a and in the operating manual ss ennnnnnnnnnnnnnnnnnnnn nara nn nn tana nn rama nn nanzn tna 1 m 1 3 Short Description of the Machine ss ss eesnnnnenzzennnnenznnnnnzzznnznnznzzznnnnzz 2 z 1 3 1 Construction and Operating Method eens 2 ta 1 4 Technical Data a a ee en en eae 4 u 2 Operational Safetv ss sse ssennennzennnnzonnnznnzznnzzznnnznnzznnnznnzznzza 5 m 2 1 Notes on General Safety react tctrsoccecincccuaneieaatgtaieyaciceanaccentcmmcnaemoraeaqtemseas 5 m 2 2 Notes on device safety 0s ss eseenennnnnznnnnnnzznnnnnnznnnnznznnnntnnznnnnnnznannn nanna 5 2 3 Operating Sta siisnccdecaniccinssaandacienietuntsapsicaGnatceansietemnssionicioustivntcinimenoddiennsteconies 6 2 4 Protective Devices cccccccccssceceeeecseeceuecceeceuceceueesaueeeaeeseaeesaueeseaeesseesees 6 z 2 5 Danger Points inicctiesiisncdemotinacecninanasabncduensnesainetenandineianncensiabesanbatannsdbadundsaneaainnnns 6 2 6 Electrical Safety cccccccccssssceccssesseeeecssesceeecsseuseeeeceseuseeeecsesseeeessuaeeeees 6 la 26 GO 6 nn E ne ee a ee eee ee ee 6 2602 Overload Protectio ae i A EAE RAER EEPE AAE AEA RTR Aah 6 3 ETS ea DOI icin i 7 N 3 1 UN Packing PO 7 6 3 2 AKE Ee a i E E EE A A E A aero teweeadcionoee niet T z 3 3 Securing DEVICE ensarrar an a EEES AE A E ENEE NAE NAT E AANEEN 7 S A RE O e E er ne nee n

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