Viscometer cone plate adalah alat ukur kekentalan yang memberikan peneliti suatu instrumen yang canggih untuk menentukan secara rutin viskositas absolut cairan dalam volume sampel kecil. V viscosity 60 30 12 6 1 100 200 500 2 500 2500 5000 3 2000 4000 0 20000 4 0 20000 50000 00 rotors speed rmin vis1, viscometer specification. Dynamic viscosity, also absolute viscosity, the more usual one typical units pas, poise, p. Rotational viscometer alpha series allows fast and accurate viscosity readings. The mrc vis2 digital stormer viscometer measures fluid viscosity in krebs. Bykgardner brookfield 7508 stormer viscometer, digital ku. Stormer viscometer, cone and plate viscometer as well as. Viscosity 5 viscosity coefficients viscosity coefficients can be defined in two ways. Viscometers or viscosimeters are important to many industries, including the adhesive, biotech, chemical, food, paint, petroleum, and pharmaceutical industries. The test sample is placed below and above the rotor with optional test film.
Capcalc32 software provides automatic data capture and graphical data display to facilitate analysis of test samples. Make sure that the ac power switch at the rear of the dvii is in the off position. Astm d562 standard test method for consistency of paints measuring krebs unit ku viscosity using a stormer type viscometer. The prototype viscometer board an eeprom file system. Viscosity measurement purpose the purpose of this experiment is to measure the viscosity of a glycerinwater mixture with a thomasstormer viscometer.
Viscometers are used to measure the viscosity of a fluid under defined flow conditions. Trying to make sense of the standard stormer viscometer and methods that could be used to calibrate a device, ive been looking at the original. This precision kuviscometer is designed and engineered in accordance with international testing. Installation qualification, operation qualification, and performance qualification procedure 3qs006 revision 7262016 approved by. Pcervi 6 krebs stormer viscometer viscosity meter stormertype viscometer with integrated temperature sensor to measure krebs unit ku viscosity.
Bsu tube glass capillary viscometers are ideal for measuring the kinematic viscosity of transparent newtonian fluids within a range of 0. Instant high precision viscosity in the lab, on factory floor or on the move and remain completely inert to the reaction. Stormer viscometer, cone and plate viscometer as well as brookfield viscometers with different cylinders, tubes and other measuring accessories. Canomfenske viscometer, stormer rotatingcylinder viscometer, hydrometer, tachometer, stopwatch, vacuum pump, fluid of unknown viscosity. Attach the spindle lefthand thread to the viscometer lower shaft by lifting the coupling screw slightly. A standard ball is allowed to fall down this tube over a calibrated distance of 100 mm. Includes a calibration certificate with a constant. Pcervi 5 is a krebs viscometer or stormer viscometer used in industrial and research applications to measure krebs unit viscosity according to the astm d562, astm d11 and astm d856 standards. This type of viscometer consists of a circular cylinder filled by the liquid under investigation. The stormer type viscometer, digital ku2, 115v, provides a direct digital reading in krebs units ku, centipose and grams gm. 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. Conversion between stormer viscometer krebs units and.
Haake viscometer standard operating procedure updated. This krebs stormer viscometer is the ideal precision instrument for your laboratory and your research. The different types of viscometry instruments have either the fluid stationary and let the object pass through the. Viscometers, monitor and control, safety, consumables. Luis botelho this guideline for iq, oq, pq is offered as a supplement to the installation section of this manual. Standard test method for consistency of paint using the stormer viscometer. The spindles are attached to the viscometer by screwing them to the lower shaft. Hence, these instruments measure the drag caused by the interaction between the fluid and the object surface. The bykovisc ds digital stormer viscometer measures fluid viscosity in krebs units ku. We offer a variety of glass capillary viscometers because no single viscometer is ideally suited to every application. Pcervi 6 is a krebs viscometer or stormer viscometer used in industrial and research applications to measure krebs unit viscosity according to the astm d562, astm d11 and astm d856 standards. The torque exerted by viscous shear on the rotor is balanced by the work input of the falling weight. The viscosity of a nonnewtonian material varies depending on the rate of shear, but krebs stormer.
Rheology rheology is the science of the flow and deformation of matter under the effect of an applied force matter. The viscometer will run a test using shear rate to measure the viscosity of the fluid in the measuring cup. Haake viscometer standard operating procedure updated sept 10, 2014 general information viscosity is a measure of the resistatnce of a fluid which is being deformed by either shear stress of tensile stress. Calculation of viscosity from stormer viscometer data american. It continuously displays the viscosity and temperature of lubricants, starch adhesives, suspensions, and. Unlike other viscometers the viscolite measurement is unaffected by the size of vessels holding the fluid. Capcalc32 software provides automatic data capture and. Utilize a viscometer to determine the dynamic viscosity of a given fluid. Falling sphere viscometer a glass or steel ball rolls down an almost vertical glass tube containing the test liquid at a known constant temperature the viscosity of fluid of liquid is directly related to the time taken by the ball to move between the two points. Target customers oil industry, petrol industry, inks and solvents, paint, food, detergents, cosmetic, pharma and chemical industries low budget and entry level customers. The experiment involves measurement of the time it takes for. 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. The different types of viscometry instruments have either the fluid stationary and let the object pass through the fluid or viceversa. Standard test method for consistency of paints measuring. The values of co and b shown below are based on a coefficient of thermal expansion typical to that for a mineral oil. Astm d562102014 standard test method for consistency. This simplifies an established test procedure providing an immediate. Also used in paint, a stormer viscometer uses loadbased rotation in order to determine viscosity. Falling sphere viscometer the falling ball viscometer is based on stokes law. The torque exerted by viscous shear on the rotor is. Calculation of viscometer constants for cannonfenske.
A ford viscosity cup measures the rate of flow of a liquid. Lvis 510 is an inline viscometer which is immersed directly in the production liquid. This, under ideal conditions, is proportional to the kinematic viscosity. All cannon glass capillary viscometers are traceable to a nist calibration and manufactured in our iso 9001registered, a2laaccredited laboratory.
Krebs stormer viscometer viscosity meter pcervi 5 pce. If the ku10 blade spindle did not locate on the center of the tank,you can use. Ametek brookfield provides an accurate, easytouse solution for companies that manufacture or process thermoset materials requiring gel time measurements. Viscometers are instruments used to measure viscosity, the internal friction of the layers of a liquid in motion. Calculation of viscometer constants for cannonfenske routine.
Krebs stormer viscometer viscosity meter pcervi 6 pce. Viscosity of newtonian and nonnewtonian liquids rotary. The stormer viscometer is a rotation instrument used to determine the viscosity of paints, commonly used in paint industries. A weight, w, is used to drive a rotor that is partially submerged in a sample of liquid. Attach the spindle lefthand thread to the viscometer lower shaft by lifting the. Pcervi 5 krebs stormer viscometer viscosity meter stormertype viscometer to measure krebs unit ku viscosity automatically or manually. Viscosity measurement purpose the purpose of this experiment is to measure the viscosity of a glycerinwater mixture with a thomas stormer viscometer. Approximate viscosity in centipoise and krebs unit values at 25c are given in table below. Viscometer precision bath page 290 glass viscometers page 291 to 292 monitor and control apparatus pages 293 to 297 glass thermometers pages 296 to 297 laboratory reactors pages 298 to 299 filters. The falling ball viscometer is based on stokes law. Please see the attached file that gives the formula for estimating the shear rate in the brookfield viscometer. Mount the guard leg, if used, spindle protector on the viscometer. This precision ku viscometer is designed and engineered in accordance with international testing standards, e. Viscosity is a tensorial quantity that can be decomposed in different ways into two independent components.
The paddle type spindle is driven at constant 200 rpm by a computer controlled motor. Astm d562102014 standard test method for consistency of. A wide variety of stormer viscometer options are available to you, such as auto testing machine, universal testing machine. On the attached krebs units to centipoise conversion chart. Lv viscometers are provided with a set of four spindles and a narrow guard leg. Thus, a rheometer can be considered as a special type of viscometer. The stormer viscometer measures the viscosity of a fluid by measuring the time taken for an inner cylinder in the mechanism to perform a fixed number of revolutions in response to an actuating weight. Apr 27, 2015 falling sphere viscometer the falling ball viscometer is based on stokes law. These types of material exhibit different viscosities depending on the applied shear rate.
Haake viscometer standard operating procedure updated sept. For thomasstormer viscometers based on nist value of 1. Krebs stormer viscosity test instrument pcervi 6 pce instruments. B gd 184 stormer viscometer is come with calibration certificate used for measuring the viscosity of newtonian and nonnewtonian fluids in accordance with astm d562. Refer to the manual for specific warning or caution information to avoid. Viscosity measurement creating web pages in your account. Viscosity and viscoelastic behavior of resins are very critical in composites manufacturing. During the testing process, the lcd digital display will. It is designed around the astm d562 standard which can be used as an application reference.
Connect the power cord to the socket on the back panel of the instrument and plug it into the appropriate ac line. Includes a calibration certificate with a constant values at 40c and 100c and a precision of 0. The equation for plastic viscosity u, when used the stormer viscometer, w f yield value intercept the yield value for plastic system is obtained by using the expression. Mar 07, 2014 fallingpiston or fallingball viscometer. Pcervi 5 is a krebs viscometer or stormer viscometer used. Ha and hb viscometers come with a set of seven spindles and no guard leg. The stormer viscometer measures the viscosity of a fluid by measuring the time taken for an inner cylinder in the mechanism to perform a fixed number of. On the parallel plate rheometer, find the viscosity at the same shear rate as that. Some customers have particular requirements for validation. Posted on december 14, 2009 author steven mackaay categories electronics, personal projects, work tags diy, fat, file allocation table, pic12f683, rc servo, stormer viscometer, viscometer 5 comments viscometer board proceeding, some rs232 fun. Stokes law can be used to calculate the viscosity of the fluid. A viscometer also called viscosimeter is an instrument used to measure the viscosity of a fluid. It consists of a paddletype rotor that is spun by an internal motor, submerged.
The viscosity is reported in krebs units ku, which are unique to stormer viscometers. This type of viscometer is known as a stormer or krebs viscometer. Haake viscometer standard operating procedure updated sept 10, 2014 general information viscosity is a measure of the resistatnce of a fluid which is being deformed by either shear stress of tensile. Vis1 rotational viscometer is designed for the determination of viscosity and theological behavior of fluid and semifluid. Viscosity is a measure of the resistance of a fluid to deform under shear stress. Rv viscometers come with a set of seven spindles and a wider guard leg. Kinematic viscosity is the dynamic viscosity divided by the density typical units m2s, stokes, st. The purpose of this experiment is to measure the viscosity of a glycerinwater mixture with a. Use of high quality instruments ensures test reliability and accuracy. Original fungilab viscometer for essential viscosity measurements, digital and easy to use. Pcervi 6 krebs stormer viscometer viscosity meter stormer type viscometer with integrated temperature sensor to measure krebs unit ku viscosity.
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