SVM 3000 - ROFA

1 SVM 3000 . Stabinger Viscometer ::: Viscometry at its best SVM 3000 . Stabinger Viscometer Rotational Viscometer for Kinematic Viscosity Anton Paar introduces an instrument which will revolutionize the determination of kinematic viscosity. The SVM 3000 works according to a new, patented (EP 0 926 481 A2) measuring principle which is technically brilliant yet ingeniously simple. Viscosity measurement has never been so easy. Moreover the extremely high sensitivity of the eddy current torque measuring system gives it a yet unrivalled 26 481 A2. precision. 09 . EP. Pa s . ten hnologie ted The torque resolution is as fine as 50 pico-Nm. This is Techn comparable to the torque resulting from a dust particle Tec olo on a 1 cm lever arm. ed t gi es en Pa t Measuring principle 1. The SVM 3000 uses a completely new and unique measuring principle.

2 The measuring cell contains a tube filled with sample which rotates at a constant speed. In this tube floats a measuring rotor. The result is the first rotational viscometer which completely eliminates the influence of 2. bearing friction. Soft iron ring 3. This centers the rotor axially. Magnet The magnet is built into the rotor. It serves to generate eddy currents depending on the speed of the rotor. Hall effect sensor To measure the speed of the rotor. The dynamic viscosity is calculated from the speed. Tube soft iron ring tube (constant speed). This tube contains the sample and rotates at a constant magnet rotor (measured speed). speed. hall effect sensor copper casing Rotor sample The hollow lightweight rotor floats in the sample and is centered by the centrifugal forces during measurement. Consequently, the friction is zero.

3 Shortly after start of the measurement the rotor reaches a steady speed determined by the brake torque of the eddy currents and the driving shear forces of the sample. Copper casing The eddy currents develop here. Further, the copper ensures a precise temperature distribution in the measuring cell. Features and benefits The unique measuring principle in the SVM 3000 . opens up a whole new era in viscosity measurement. The SVM 3000 is superior to conventional capillary viscometers in all respects. It requires a fraction of the lab space and is extremely robust, installation is a matter of minutes. The operation of the SVM 3000 is exceptionally easy and precise results are received within minutes. Design of the instrument The SVM 3000 vs. traditional capillary viscometers We have integrated the new measuring principle into an instrument which is as compact and reliable as Anton Paar's Comparison: Size well-known density meters.

4 The development process The SVM 3000 is a compact bench-top instrument, whereas resulted in the following design: conventional devices often take up ten times the space! 1 Thermostatting and temperature control Comparison: Viscosity range Cascaded Peltier elements plus sophisticated To measure the whole viscosity range from less than electronics allow a wide temperature range and exceptional 1 up to 10 000 mm2/s would require 13 capillaries. heating and cooling performance. The platinum temperature The SVM 3000 covers the whole range comfortably probe, the solid copper casing and the foam insulation make and easily. the SVM 3000 the best thermostatted viscometer. 2 Viscosity cell No more hassle with the measuring range of capillaries one measuring cell covers the whole range. Viscosity [mm2/s]. SVM 3000 . 3 Density cell In order to calculate the kinematic viscosity from the measured dynamic viscosity, the density value must be known.

5 For this reason, the SVM 3000 also has a density cell using the well-known oscillating U-tube principle. Both the density cell and the viscosity cell are filled in one single procedure; the two different measurements occur simultaneously. All these features in one compact instrument! Typical applications The SVM 3000 is designed to give comparable results to traditional Ubbelohde viscometers. Typical applications include: - R&D tasks, temperature scans over a wide range - quality control in the lab, determination of the kinematic and dynamic viscosity plus the density of mineral oils - viscosity index VI. - low temperature measurement of fuels - field measurements, used oil in car fleets, locomotives, ship diesel engines, power plants and bulldozers Ease of use Specifications Sample filling Measuring range Sample filling is performed simply and easily with a dynamic viscosity to 10 000 kinematic viscosity to 10 000 mm2/s syringe.

6 The unique new measuring principle requires density to 2 g/cm3. only a small sample volume. Temperature range maximum +100 C / 212 F. Thermostatting minimum w/o counter cooling 20 C / 36 F below ambient with cooling at 20 C / -4 F -40 C / -40 F. The high-precision Peltier system allows rapid heating and cooling while covering a wide temperature range. Reproducibility This enables viscosity index measurements to be viscosity of measured value carried out with one single instrument. density g/cm3. Required sample volume both measuring cells 3 ml Measuring cycle After reaching the set temperature, the instrument Sample throughput up to 20 samples per hour performs the viscosity and density measurements. The electronics calculates the kinematic viscosity. The Dimensions/weight length x width x height net 440 x 310 x 215 mm obtained values can then be sent to a PC or a printer ( x 12 x inches).

7 Via the RS 232 interface. net weight 13/28 kg/lbs Interfaces Cleaning procedure printer / PC RS 232. barcode reader, keyboard AT-keyboard low power While for normal use a fast and easy rinsing process is sufficient, the viscosity cell can also be easily taken Power supply apart and scrubbed with brushes. This assures that wide range, sinusoidal current 85 to 264 VAC, 48 to 62 Hz, 50W. even difficult samples can be removed without using Options printer, keyboard highly aggresive and toxic detergents like chromic acid mixture. Dr. Hans Stabinger Two ingenious measuring principles from one ingenious scientist The last few centuries have seen many methods for measuring viscosity. These fall into two groups: Either expensive instruments which are difficult and time-consuming to operate but produce highly accurate results or simpler, easy to use devices which lack precision.

8 Dr. Hans Stabinger was convinced there was a better solution, combining high precision and ease of use. In the early 60s, the young Hans Stabinger studied After 30 years, I had my second good idea! . in Graz, Austria at the Technical University. Besides Once again Dr. Stabinger has come up with an his studies he worked in a laboratory, where he had astounding new method, which introduces a to perform monotonous and time-consuming revolutionary new approach to a long-standing measurements to determine the density of liquids. measuring problem and looks set to change This lead him to his first ingenious invention. He established habits. The new measuring principle for simply refused to accept that there wasn't a better determining viscosity promises to be as successful way. as the oscillating U-tube. Brilliant ideas are often very simple.

9 The new method This measuring principle is so different from Dr. Hans Stabinger developed for density conventional methods that the instrument cannot be measurement was deceptively so. Up until then, classified using the terms capillary or rotational accurate density measurements could only be viscometer . Consequently, another good idea was obtained using high precision hydrostatic weighing required to find a suitable name for this outstanding devices which filled a whole room and were very instrument. As is tradition in viscometry (think of expensive. This method used the effect of well-known names such as Hoeppler and gravitational force on the sample and Dr. Stabinger Ubbelohde), the measuring principle was named realised he had to replace gravitational acceleration after its inventor and the Stabinger Viscometer was with an acceleration which was many times higher.

10 Born. This, he believed, was the key to a simple but highly accurate new method. The outcome was the oscillating U-tube, which is filled with the sample liquid and excited to oscillate via magnetic coils. Today, the oscillating U-tube principle is the accepted standard for density measurement. Everyone familiar with Dr. Hans Stabinger knows that he's not only a great inventor but also has a sense of humor. Referring to his latest invention he joked, Anton Paar GmbH. Anton-Paar-Str. 20. A-8054 Graz Austria - Europe Gra z-Austria C. ert ar ifi Pa Tel: +43 (0)316 257-0 00. 1 certif ca on te nt 9. ie N. Fax: +43 (0)316 257-257. tem A. o. Q1. ISO. d E-mail: 00 11. y Sys 180. alit Web: Qu 13. 00. ed 3. tifi Cer Instruments for: Density and concentration measurement Rheology and viscometry Sample preparation Colloid science X-ray structure analysis CO2 measurement Specifications High-precision temperature subject to change measurement without notice.