Refer to the manual for specific warning or caution information to avoid. Cpa cups and spindles are compatible with cpe cups and spindles 3. The dve memory contains parameters for all standard brookfield spindles and the two digit entry code for each spindle the complete list of spindle entry codes may be found in appendix c. Spindles can be identified by the number on the side of the spindle coupling nut. Contact brookfield or our authorized dealer if you require s techniques for determination of extremely lowadditional assistance. A collection of articles discussing viscosity and instruments including how to make successful viscosity measurements, rheology, and many more. Please inquire about special spindle materials and configurations for unusual applications. Disc spindles are the most common type found in qc labs. The results obtained can be converted intoviscosity functions by a mathematical procedureoutlined in technical paper ar82, available frombrookfield engineering laboratories. Easy steps to successful viscosity measurement brookfield. Physicochemical and flow properties of a yogurt enriched with polyunsaturated fatty acids omega3 in microcapsules, at two concentrations and during 3 weeks of cold storage, were studied and analyzed. Tbar spindles are used with the helipath stand to create a helical path through nonflowing materials such as creams,pastes, putty and gelatin. The dve must have a spindle entry code number to calculate viscosity values. Brookfield offers an extensive range of thermosel spindles to provide a vast viscosity range.
Physiochemical and flow properties of lowfat yogurt. Brookfield more solutions to sticky problems rheology. This is an extract of the complete reprintpdf, available at the applied rheology website. Wellsbrookfield cones and cups are calibrated at the factory. A sample of 400 600ml in a suitable container is placed under the viscometer which is then lowered to dip the spindle into the sample up. See page 18 for viscosity ranges w spindle cp4 cp4 cp4 cp5 cp5 cup cp44 cp44 pcp3 pcp6 pcp4 pcp7 shear rate 7. Spindles lv2c and lv3c are optional cylindrical spindles offering geometry for calculating shear rates.
Brookfield dial reading viscometer with electronic drive. Our most popular spindle chamber combination is also available in a rugged, yet disposable version. I have brookfield s technical pap shear rate determination disc spindles polymer engineering engtips. Wells brookfield cones and cups are calibrated at the factory. Ezlock option ezlock spindles with a special coupling system are also available. More solutions to sticky problems ametek brookfield. Brookfield ametek thermosel accessory lab unlimited uk. M85150p700 fluid surface, and bring the spindle to an upright position and thread onto screw. The brookfield dial reading viscometer measures fluid viscosity at given shear rates. Boston chicago london stuttgart guangzhou 10561014 10m 1205 more solutions to sticky problems. Labelled as lv or rv spindle sets, these comprise simple shafts ending in a disk or cylinder. Disc spindles produce accurate, reproducible apparent viscosity determinations in most fluids. Take care to avoid trapping air bubbles under the spindles, especially the disk type.
Brookfield viscosity, brookfield viscometers, measurements. Spindles in general are either cylindrical in shape, like the image in figure 1, or may have a disc at the bottom as shown in figure 2. A sample of 400 600ml in a suitable container is placed under the viscometer which is then lowered to dip the spindle into the sample up to an immersion mark on the spindle shaft. Mar 09, 2016 disc spindles produce accurate, reproduc ible apparent viscosity determinations in most flu ids. The results obtained can be converted into viscosity functions by a mathematical procedure outlined in technical paper ar82, available from brookfield engineering laboratories. Brookfield offers a variety of spindles and chambers including disposable for hard to clean materials for use with the thermosel system. Could anyone point the way to determining shear rates from data recorded using disc type spindles, specifically rv1 and rv5. Space doesnt permit a detailed discussion here, but more information can be obtained from brookfield engineering laboratories on these and other advanced methods. Heavier pastelike materials may require the use of a spiral adapter. More solutions for sticky problems rheology shear stress. S approximation of shear rate and shear stress values using disc type spindles ar82. Cones ordered after shipment require cups to be returned for calibration to new cone.
Disc spindles produce accurate, reproduc ible apparent viscosity determinations in most flu ids. Pdf an examination of the use of rotational viscometers for the. More solutions for sticky problems linkedin slideshare. Brookfield digital viscometer operating instructions. Spindle lv5 is an optional spindle designed to increase measuring range. This option allows spindles to be quickly attached and removed, and may also. A series of articles and technical papers discussing various topics including viscosity, powder and texture testing for all different types of industries. Lower and center spindle in the test material 600 ml beaker until the meniscus of the fluid is at the center of the immersion groove on the spindle s shaft. Use of the brookfield disc spindle and of the brookfield cone and plate viscometers in the sugar industry is investigated. Helipath stands are shipped with six different tbar spindles, however, individual spindles can also be purchased. There are other types as well, such as cone and tbar, but will not be discussed in this article.
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