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Fritsch analysette 22 ECONOMY Operating Manual

Laser particle sizer
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FRITSCH
Operating Manual
Laser Particle Sizer
"analysette 22"
ECONOMY

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Summary of Contents for Fritsch analysette 22 ECONOMY

  • Page 1 FRITSCH Operating Manual Laser Particle Sizer "analysette 22" ECONOMY...
  • Page 2 E-Mail: info@fritsch.de Internet: http://www.fritsch.de On the 24th June 1994, Fritsch GmbH was certified by TÜV-Zertifizierungsgemeinschaft e.V. A subsequent audit has shown that Fritsch GmbH fully complies with the requirements of DIN EN ISO 9001. The relevant standards are listed in the enclosed Declara- tion of Conformity.

  • Page 3: Table Of Contents

    Contents Page FRITSCH General / Introduction ............ About this operating manual ............. Symbols on warning signs and in this manual ......Brief description of the machine..........1.3.1 Design and function................1.3.2 Description of the device ..............Technical Data ................. Safety ................

  • Page 4: General / Introduction

    The copyright for these technical documents is the property of Fritsch GmbH. • Reproduction of this manual is only permitted with the explicit written consent of Fritsch GmbH. • Please read this operating manual carefully. • All operating staff must be familiar with the content of this manual.

  • Page 5: Brief Description Of The Machine

    Wear protective goggles! Do not extinguish fires with water! Brief description of the machine The "analysette 22 ECONOMY" laser particle sizer is used for determining the particle size distribution in suspensions and emulsions and is suitable for a wide range of applica- tions.

  • Page 6: Description Of The Device

    Fraunhofer or Mie the- ory. FRITSCH is uses its own patented optical system referred to as "reverse Fourier optics". The sample is brought into a converging laser beam, whereby the distance between the measuring cell to the detector corresponds to the focal length of the convex lens used in conventional systems.
  • Page 7 The system is controlled by means of a mouse and monitor, FRITSCH via keyboard or touchpad. You also have the option to combine PC and process control system to complete indi- vidually programmed measuring cycles including background measurement sampling measuring (single and multiple measurements) recording of the results rinsing and restart after a set delay.

  • Page 8: Technical Data

    Technical Data FRITSCH Dimensions and weight Dimensions: 850 x 420 x 340 mm (width x depth x height) Net weight: 36 kg Gross weight: 65 kg Operating noise The noise level is 42dbB(A). Voltage 230 V ± 10% one-phase DC Current consumption The maximum current consumption is 0.65 A...

  • Page 9: Safety

    • Always comply with general standards for safe work. • Any unauthorised modification tot he device shall void the warranty and the EU Declaration of Conformity is- sued by Fritsch. • When measuring oxidable substances, e.g. metals, or- ganic compounds, timber, coal, plastics, etc., there is a risk of self-ignition (dust explosion) if the fine particle content exceeds a certain level.

  • Page 10: Operating Staff

    140 W. The PZT ultrasound transducer attached to the ul- trasonic bath converts the supplied electrical power into mechanical oscillations. Fritsch ultrasonic baths are de- signed for liquids and a frequency of 35 kHz. In the proc- ess, minute vacuums occur and implode (cavitation). The cavitation leads to the disintegration of agglomerates.

  • Page 11: Protective Devices

    Measuring unit including dispersing unit for liquids: 36 kg Check delivery against your order! In the event of missing parts and/or transport damage, immediately contact the haulier and FRITSCH GmbH (within 24 hours). Late notifi- cations cannot be accepted. Transport When transporting the device over long distances, place it in the transport box and secure it properly.

  • Page 12: Electrical Connection

    • Do not switch on devices that have been exposed to low FRITSCH temperatures. • Allow unit to warm up until it has reached the permitted ambient temperature in order to eliminate condensation that might lead to damage. • It is recommended to position the computer in such a way that its monitor is facing away from direct light in or- der to prevent glare.

  • Page 13: Electrical Fuses

    3.4.1 Electrical fuses FRITSCH device fuses are located at the rear of the device beside the connectors (adapter for non-heated devices). REPLACEMENT: Main fuse: 1 x safety fuse 2A mT 5x20mm Laser fuse: 1x fine-wire fuse 500 mA fast 5x20mm 3.4.2 Stability of mains power...

  • Page 14: Integrated Dispersing Unit For Liquids

    Integrated Dispersing Unit for Liquids FRITSCH Installation of hose connections The following components are attached to the rear of the device: 2 pipe sockets for hoses (20mm internal diameter) 1 barrel nipple for hose (6 mm internal diameter) Zulauf Liquid Supply Abfluss Überlauf...
  • Page 15 FRITSCH The maximum permitted pressure for hose lines is 1.5 bar. Most operators use demineralised filtered water for sus- pension, and this liquid is fed through connection "IN" into the dispersing unit. Hose connections to measuring cell The measuring unit of the ECONOMY model is equipped with one hose connection, which is generally factory-mounted.

  • Page 16: Liquids Suitable For Dispersion

    FRITSCH Prior to fastening the hose clamps, shorten hoses or rotate them until they are properly positioned inside the device. Prior to the first measuring cycle, inspect the supply hoses of the measuring cell for proper installation while moving the cell from its left to its right stop.

  • Page 17: Signal Lines

    FRITSCH We strongly recommend that you refrain from using hazardous substances that might affect the health of the operating staff, or explosive or flammable liquids. The above list of substances refers only to their chemi- cal compatibility . The measuring and the dispersing unit are not explo- sion-proof devices.

  • Page 18: Cleaning

    FRITSCH Cleaning 4.4.1 Cleaning of the device The device can be cleaned with a moist cloth. Ensure that no liquids penetrate the machine. 4.4.2 Cleaning of the measuring cell Generally, it is sufficient to regularly rinse the measuring cell with a clear liquid. To remove deposits, add little deter- gent to the rinsing liquid.
  • Page 19 Open the protective cover at the inside of the measuring FRITSCH unit and position the cell at the centre between maximum and minimum range (around 60 mm). Loosen the screws at the left side of the cell holder by using a 3-mm Allen key and remove the cell by lifting and pulling it forward.
  • Page 20 FRITSCH Carefully lift off the spacer (1) and put it onto the special paper. To clean the windows (2), proceed with special caution. Only touch the edge of the window (2). Carefully lift the windows (2) from the two cell sections and place them onto the cleaning tissue, whereby the outside must face down.
  • Page 21 FRITSCH When cleaning the spacer (1), proceed with special cau- tion! Its faces are plane-parallel and the spacer may thus not be exposed to any mechanical strain as it could easily be damaged. Bent spacers (1) must be replaced. Rinse the spacer (1) under the tap.

  • Page 22: Filling Of Measuring Cell

    Filling of measuring cell FRITSCH 4.5.1 Operating with dispersing unit Press the "Clean/Fill" key on the touchpad of the supply unit. The ultrasonic bath is rinsed and subsequently filled with clear measuring liquid. The inlet valve is automatically closed by means of the filling level detection system.

  • Page 23: Accessories

    FRITSCH Accessories "analysette 22 for WINDOWS" software The "analysette 22 for WINDOWS" software allows for the programming and control of all functions of the models COMPACT, COMFORT and ECONOMY (see separate manual of the "analysette 22 for Windows“ software). Dispersing unit for small samples The dispersing unit for small samples is directly integrated into the measuring cell of the measuring unit.

  • Page 24: Filling Of Measuring Cell For Operation With Dispersing Unit For Small Samples

    FRITSCH The hoses must be inserted below the acrylic glass cover. To close the housing cover, ensure that the two hoses are properly placed in the respective recesses in the cover. Secure hoses with hose clamps. The sample liquid flows upwards through the cell.

  • Page 25: Mini-Cell

    FRITSCH Mini-cell A mini-cell (1) is available for the processing of extremely small samples and particle sizes. The mini-cell can hold 1 ml of suspension liquid. To use the mini-cell (1), remove the flow measuring cell from the device and insert the mini-cell holder (2). The mini-cell holder (2) fits into the place of the flow measuring cell.

  • Page 26: Maintenance

    Teflon, Viton (FPM or FKM) and Perbunan). The standard connecting hoses are made in PVC or polyethylene. The only suspension liquid approved by FRITSCH for use in the dispersing unit is water. Do not use any other substances without first consulting the manufacturer.
  • Page 27 If the laser optics have inadvertently been changed (by FRITSCH turning the thumb screw (1) to the left) (1)), the settings of the aperture must be inspected and readjusted, if neces- sary. To inspect the optical system place a mat white piece of cardboard to the right of the adjusting lens.

  • Page 28: Calibration

    Calibration FRITSCH To calibrate the device, we recommend to use the ASTM system. This utility is supplied with a specially devised holder that is installed in the posi- tion of the measuring cell. 6.3.1 Measurement Open the cover of the Instrument and the underlying Plexiglas cover (which stays open during the measure- ment).
  • Page 29 In order to use the FRITSCH holder (3) to attach the utility A-22 ECONOMY model, you must remove the mi- crometric screw (1). To remove this screw, loosen the two screws (2). Attach the holder (3) onto the measuring cell holder.

  • Page 30: Warranty

    If the card is not returned, the device is not covered by warranty. If you need support, please do not hesitate to contact FRITSCH GmbH, the Ap- plication Laboratory of the manufacturer or any of his re- gional agents.

  • Page 31: Liquids Suitable For Suspension

    FRITSCH Liquids suitable for suspension As the sample liquid inside the device is only in direct con- tact with materials that are resistant to chemicals, certain organic liquids and saturated inorganic salt solutions can be used in suspensions. (Inside the unit, the sample liquid is in direct contact with stainless steel, glass, Teflon and Viton (FPM or FKM).

  • Page 32: Dispersion Of Samples With Poor Wettability

    FRITSCH Example: Slightly magnetic materials Generally, it is virtually impossible to determine the particle size distribution in magnetic materials in suspension, as they individual particles attract each other. Thanks to the high sensitivity of the "analysette 22" device, it is however...

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