The ems viscometer requires only very small sample quantities 0. Viscometer related variables most fluid viscosities are found to be nonnewtonian. Jun 19, 20 brookfield digitalviscometer photogallery0 sop1 validation2apc, s. Mount the guard leg, if used, spindle protector on the viscometer. Measures viscosity and temperature simultaneously with an optional temperature probe with a choice of 18 different speeds. There are four basic spring torque series offered by brookfield. Alumina slurries, cmc solutions and chocolates were used as nonnewtonian fluids, and their apparent viscosities were measured by a single cylinder rotational viscometer b.
Jun 20, 2011 brookfield viscometer calibration with coaxial cylinder geometry. Falling sphere viscometer article about falling sphere. Brookfield dv2t operating instructions manual pdf download. Because the specific rotational speed and the spindle used as well as the temperature. Ametek brookfield provides an accurate, easytouse solution for companies that manufacture or process thermoset materials requiring gel time measurements. Introduction the brookfield dvii viscometer series has been the leading industrial viscometer since it was first introduced in 1985. The viscosity, or resistance to flow, of a material can be determined by a rotational viscometer.
A continuous sensing capability for rapid viscosity measurement makes this economical dv1 digital viscometer a standout. Viscometers are used to measure the viscosity of a fluid under defined flow conditions. Lvis 510 is an inline viscometer which is immersed directly in the production liquid. Materials that do not flow until the applied shear stress surpasses a certain value are said to have a yieldstress. Spindle extension link for brookfield viscometer rheometer. Brookfield viscometers rheometers why measure viscosity. Digital brookfield viscometer, brookfield rotational. The different types of viscometry instruments have either the fluid stationary and let the object pass through the fluid or viceversa.
The specifications of the viscometer spindle and chamber geometry will affect the viscosity readings. A viscometer also called viscosimeter is an instrument used to measure the viscosity of a fluid. Does anyone know the calibration procedure of brookfield. After the few seconds thescreen appears which indicates 2 digits. Once the program up to 25 steps is created, it can be downloaded to a supplied usb flash drive and then uploaded to any dv2t viscometer. More solutions to sticky problems ametek brookfield. Upload the program from the usb flash drive to the dv2t.
Brookfield viscometer calibration with coaxial cylinder geometry. Business listings of brookfield viscometer manufacturers, brookfield viscometer suppliers and exporters. With its timed measurement function, data can easily be sent to a pc or printer. Rheocalct software optional get total control of your instrument and test parameters automatically control and collect data with rheocalc and a dedicated computer. Brookfield rotational viscometers read viscosity directly and. The most popular is rotational viscometer, utube viscometer and falling ball viscometer. M98350d0902 specialists in the measurement and control of viscosity tel 80062889 or 5089466200 fax 5089466262. Digital brookfield rotational viscometer viscosity meter ndj1d fluidimeter product description the instrument is designed and made as per t0625 asphalt brookfield rotational viscosity test brookfield viscometer methods in the industry standard of peoples republic of china jtj052 specifications and test methods of bitumen and. Boston chicago london stuttgart guangzhou brookfield engineering laboratories, inc. Principle of operation the wellsbrookfield coneplate viscometerrheometer is a precise torque meter which is driven at discrete rotational speeds. The brookfield dve has set a world standard for value in viscosity measurementdigitally measuring the torque required to rotate either an object in the fluid or the sample cup itself, rotational viscometers operate using a specific time. Ndj1f digital brookfield rotational viscometer viscosity. More olutions to ticky problems s university of utah. Brookfield engineering is an engineering and manufacturing company with headquarters in middleboro, massachusetts.
Brookfield rotational viscometers read viscosity directly. Attach the spindle lefthand thread to the viscometer lower shaft by lifting the coupling screw slightly. Elcometer 2300 rotational viscometer and viscositymaster. Tqc rotational viscometer according to brookfield method, allows quick determination of viscosity in laboratory, research centres, and during production. It continuously displays the viscosity and temperature of lubricants, starch adhesives, suspensions, and many more process liquids, allowing 24hour production monitoring. Rotational viscometer an overview sciencedirect topics. Brookfield digital viscometer model dve operating instructions manual no.
Brookfield has continued to develop and improve the dvii to. The determination of viscosity with a capillary viscometer is based on poiseuilles law and. Part of the instrument is rotated, and this leads to the sample being sheared. Mar 07, 2014 rotational viscometer rotational viscometer gathers data on a materials viscosity behavior under different conditions. Viscometer an instrument for the determination of viscosity. Investigate the temperature dependence of the viscosity of castor oil and glycerine. Also set default values for viscometer model, spindle type, company and operator and which com port your elcometer 2300. This video shows the process of choosing a spindle and rotational speed for use with a brookfield viscometer. All parts of the viscometer that come in direct contact with the sample are disposable and inexpensive. The ems viscometer distinguishes itself from other rotational viscometers by three main characteristics. Models 9894500 and 05 also include four standard spindles and spindle guard. Combined with a wide range of accessories, fungilab make kinematic viscosity measurement quick and easy. In principle, all brookfield ametek rotational viscometers are calibrated torque meters. Hold it firmly with one hand while screwing the spindle on with the other note lefthand thread.
For liquids with viscosities which vary with flow conditions, an instrument called a rheometer is used. Viscosity ranges in centipoise cp catalog number lowrange. Create the program on the pc and download to a usb flash drive. If you wish to study viscosity in rotation, anton paars viscoqc 100300 and rheolabqc achieve precisely what is required, no matter whether you want to run quick singlepoint viscosity checks or. With the svm viscometer series and the lovis 2000 mme rollingball viscometer, viscosity determinations are quicker and easier than ever before. Target customers oil industry, petrol industry, inks and solvents, paint, food, detergents, cosmetic, pharma and chemical industries low budget and entry level customers. Pg flash allows users to create repeatable custom tests with all of the builtin options on the dv2t plus the addition of multiple program lines up to 25 steps. When purchase a rotational viscometer, you should know what samples you determine and viscosities of samples. Rotational viscometer alpha series allows fast and accurate viscosity readings. They are dependent on shear rate, time of test and the spindle geometry conditions. Viscosity of nonnewtonian fluid using brookfield rotational viscometer. Rotational viscometer rotational viscometer gathers data on a materials viscosity behavior under different conditions.
Raypa viscometers, models rp1 and rp2, are rotational viscometers for the quick determination of viscosity as specified in iso 2555 and other astm norms. Brookfield has a reputation of being the world leader in viscosity measurements for over 80 years providing a variety of laboratory viscometers to suit a wide variety of applications. The torque measuring system, which consists of a calibrated berylliumcopper spring connecting the drive mechanism to a rotating cone. Brookfield dv1 digital viscometer operating instructions manual no. Hence, these instruments measure the drag caused by the interaction between the fluid and the object surface. The principle of operation of this viscometer is the same as all other rotational viscometers. Byk gardner brookfield viscometer lvdve brookfield. Apparent viscosity of unfilled asphalt binder is evaluated by a rotational viscometer which measures the torque generated by a calibrated spindle rotating at a. Calibration of brookfield viscometer learn how to verify the performance of brookfield viscometer using 5. Digital brookfield rotational viscometer viscosity meter. The design is based on one of the simplest techniques for viscosity measurementsthe socalled mixer viscometer 89101112 1415, a rotational device. Use of high quality instruments ensures test reliability and accuracy. Viscosity instruments rheometer viscosity viscometer and.
China digital rotational brookfield viscometer with iso. The most common types of viscometer are capillary, rotary, fallingsphere, and ultrasonic. Rotational digital viscometeraccurate 18 speeds viscosity torque catalog no. These instruments are used by research, design, and process control departments. All cannon glass capillary viscometers are traceable to a nist calibration and manufactured in our iso 9001registered, a2laaccredited laboratory. A rotational viscometer can consist of a coneandplate arrangement figure 9, or concentric cylinders with the sample material in the annular space between them figure 10. These rotational viscometers conform to astm d115, d1076, d1084, d4300, d1417, d1439, d1824, d2196, d2364, d2393, d2556, and d2669. Digital brookfield rotational viscometer viscosity meter ndj. Viscometers viscosity measurement equipment brookfield. All viscometer models feature 10 language options english, french, german, italian, japanese, portuguese, spanish, dutch, polish, and catalan, pushbutton control with easytouse menu system, motor selftest, user calibration to a known standard, and universal power supply. Choice of the instrument depends on the project and fluids used by the laboratory. More olutions to ticky problemss making rheological measurements equipment for speci. Determine the gradient of the rotational velocity as a function of the torsional shearing stress for two newtonian liquids glycerine, liquid paraffin. Viscosity of newtonian and nonnewtonian liquids rotary.
Original fungilab viscometer for essential viscosity measurements, digital and easy to use. China brookfield rotational viscometer ndj 1bcdef, find details about china viscometer, rotational viscometer from brookfield rotational viscometer ndj 1bcdef shanghai changji geological instrument co. Selecting a spindle and rotational speed for use with. Exact speeds of rotation are assured as the motor will turn erratically and spasmodically if synchronization cannot be maintained. Brookfield ametek offers a variety of viscosity calibration fluids that enable one to check the calibration and linearity of the instrument over its operating torque range of 10%100% torque. We offer a variety of glass capillary viscometers because no single viscometer is ideally suited to every application. Viscosity is a measure of a fluids resistance to flow. Rotating concentric cylinders couette good for low viscosity, high shear rates. Replacement part for brookfield rotational viscometer rheometer. The rotational viscometer basically consists of two parts a head unit with a motor and a spindle that is driven by the motor.
Viscosity of nonnewtonian fluid using brookfield rotational viscometer duration. The torque on the cylinders, or on the cone and plate, is related to the shear stress in the sample, and the shear rate can be calculated. Cgoldenwall ndj5s digital rotational viscosity meter viscometer rotary visometer 110v220v 1100,000mpa. Determine the flow curve for a nonnewtonian liquid chocolate. Brookfield viscometers rheometers new dve viscometer. Get contact details, profile of companies dealing in wide range of brookfield viscometer as per your buying requirement. Viscometers thermo scientific haake viscotester 1 plus and 2 plus rotational viscometers quickly and reliably measure viscosity using the thermo scientific haake viscotester 1 plus and 2 plus rotational viscometers. Sop1 turn on the viscometer and allow standing,must be auto zero. The extension link is used for changing the depth of spindle immersion. Fungilab offer a comprehensive range of kinematic viscometers, including the hoppler viscoball, capillary viscometers, and flow cup viscometers. M14023 specialists in the measurement and control of viscosity with offices in.
Ankur choudhary print question forum 2 comments procedure. The measurements are performed in a sealed sample vessel. Use spindles 9894570 through 73 for the lowrange viscometers. The viscometer can also be used to approximate other flow characteristics by relating viscosity and flow for a known composition. The completely immersed cylindrical measuring spindle provides accurate dynamic or shear viscosity calculations. Thus, a rheometer can be considered as a special type of viscometer.
Rpm number of increments 2m m 26m 104m speeds 1 100 200 800 18. Use spindles 9894574 through 80 for the medium and highrange viscometer models. Spring torque model dynecm milli newtonm lvdve 673. Second, verify the calibration of the viscometer using the ul or din adapters. Its product line includes laboratory viscometers, rheometers, texture analyzers, and powder flow testers as well as inline process instrumentation. Number of speeds standard torque range values m 1 million minimum ranges can be extended to as low as 1 cp with the use of brookfield accessories.
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