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Viscometers
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portable -22°...+302°F
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HAAKE Viscotester VT550
- HAAKE Viscotester 550
Application
The Thermo Scientific HAAKE Viscotester 550 is specially designed for Quality Control applications. It is a rotational viscometer that measures precisely, quickly and simply the viscosity and flow behaviour of liquid and semisolid test materials. All results like viscosity, shear stress, shear rate, yield point and operating temperature are displayed in the digital LED display.
The HAAKE Viscotester 550 does not mind if a sample is thin like an oil, a paint or a ceramic slurry or as pasty as cremes, salves or a PVC plastisol. One unit covers the whole application range from very thin to very thick. Even more demanding tasks will be fulfilled.
For example, the automatic characterization of the flow behaviour of non-Newtonian fluids or the determination of the yield point using the CD-principle (= Controlled Deformation) can be done. Any one out of a set of 10 predefined routines will be executed with precision and repeatability. Also all predefined routines and the results obtained with them will be documented using a printer.
Measuring Principle
By its design, the HAAKE Viscotester 550 is a Searle viscometer. A rotational speed is preset and the flow resistance of the sample is measured or in other words the torque required to maintain the set speed is proportional to the viscosity. From the torque required, the set speed and the geometry factors of the applied sensor, all final information on the viscosity, shear stress and the shear rate is calculated.
The results are displayed digitally and can be printed simultaneously. For viscosity measurements a total of 60 different rotational speed steps are available. 50 out of these 60 are factory set, the remaining 10 are userprogammable. The 60 steps cover a wide range reaching from 0.5 rpm to 800 rpm. The resulting torque is measured via a non-contact, low displacement sensor which enables the extended measuring range with perfect signal linearity over the whole range. The operating temperature can be measured by Pt100 probes located either in the sensor used or directly in the test material.
Sensors
The modular design of the HAAKE Viscotester 550 system allows the use of nearly any known sensor. So all applications will be covered.
• Coaxial Cylinder sensors according to DIN 53018 and ISO 3219. Exact temperature control can be provided by use of a circulator
• Immersion sensors according to DIN 53019 and ISO 3219
• Cone-and-plate sensors according to ISO 3219 and parallel plate sensors
• Relative sensors according to ISO 2555
• Special immersion sensors for highly filled samples or containing large particles, for the determination of the yield point.
All these sensors guarantee that your results will be absolutely comparable either with in your company or even worldwide with other laboratories.
Motor
A powerful and dynamic motor guarantees high torque and correct rpm values. In case of overload the test is terminated automatically. That means quality by design!
Sensors
Sensor geometries according to DIN, ISO and ASTM as well as customized geometries let your system grow as required. Also, cone-and-plate and parallel plate and coaxial cylinder sensors are available.
Keypad / Display
The LED-display with its excellent readability shows all the values entered via a dustsealed keypad. There are no double functions on the keypad. Operation is self-explanatory with separate cursor keys for the selection of the parameters.
Routines
10 factory set program routines with one common protocol are available. They include yield points, flow curves and cure testing. If necessary they can be edited and modified by the user.
| Technical data | |
| Speed range | 0.5 ... 800 min-1 |
| Uncertainty | ± 0.1 % |
| CD-Mode | < 0.5 % min-1 |
| Torque range (Ncm) up to 400 min-1 up to 800 min-1 |
0.01 ... 3 0.01 ... 2 |
| Uncertainty | ± 0.5 % FSD |
| Temperature range | -50 ... +250 °C (depending on measuring system) |
| Data interface | RS232C |
| Power supply | 230/115 V (50/60 Hz) |
| Standard measuring geometries MV, NV, SV | |||||||
| Sensor | NV | MV1 | MV2 | MV DIN | SV1 | SV2 | SV DIN |
| Cup | NV | MV | MV | MV/TMV | SV | SV | SV/TSV |
| Temperature vessel | + | + | + | +/- | + | + | +/- |
| Application | Low viscosity | Medium viscosity liquids | High viscosity liquids | ||||
| Viscosity range (mPas) | 2 - 2,000 | 3 - 10,000 | 8 - 30,000 | 8 - 18,000 | 50 - 105 | 100 - 3·105 | 50 - 105 |
| Recom. viscosity range (mPas) | 5 - 300 | 10 - 7,000 | 20 - 20,000 | 15 - 10,000 | 150 - 60,000 | 300 - 2·105 | 150 - 60,000 |
| Shear rate (s-1) | 27 - 27,000 | 11.7 - 1,170 | 4.5 - 4,500 | 6.5 - 645 | 4.5 - 445 | 4.5 - 445 | 6.5 - 645 |
| Sample volume (ml) | 9 | 40 | 55 | 50 | 9 | 6 | 14 |
| Gap (mm) | 0.35 | 0.96 | 2.6 | 1.64 | 1.45 | 1.45 | 0.9 |
| Radius, Length (mm) | 20.1 / 60 | 20.04 / 60 | 18.4 / 60 | 19.36 / 58.08 | 10.1 / 61.4 | 10.1 / 19.6 | 10.65 / 31.95 |
| Repeatability (± %) | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Reproducibility (± %) | 3 | 2 | 2 | 3 | 3 | 3 | 3 |
| Plate-cone geometries and special geometries | ||||||
| Sensor | PK 1,1° | PK 1,0.5° | PK 2,1° | PK 2,0.5° | MV 2P | SV 2P |
| Cup | - | - | - | - | MVP | SVP |
| Temperature vessel | PK 100 D / PK 200 | + | + | |||
| Application | Small sample volume, high viscosity samples | Slippage | ||||
| Viscosity range (mPas) | 50 - 105 | 20 - 50,000 | 100 - 3·105 | 100 - 1.5·105 | 8 - 30,000 | 100 - 3.5·105 |
| Recom. viscosity range (mPas) | 100 - 70,000 | 50 - 40,000 | 200 - 2·105 | 150 - 80,000 | 20 - 20,000 | 350 - 2·105 |
| Shear rate (s-1) | 30 - 3,000 | 60 - 6,000 | 30 - 3,000 | 60 - 6,000 | 4.4 - 440 | 4 - 390 |
| Sample volume (ml) | 0.1 | 0.1 | <0.1 | <0.1 | 55 | 6 |
| Gap (mm) | 0.0174 rad | 0.0087 rad | 0.0174 rad | 0.0087 rad | 2.6 | 1.45 |
| Radius, Length (mm) | 14 / - | 14 / - | 10 / - | 10 / - | 18.4 / 60 | 10.1 / 19.6 |
| Repeatability (± %) | 2 | 2 | 3 | 3 | 2 | 2 |
| Reproducibility (± %) | 4 | 4 | 6 | 6 | 4 | 5 |
| Immersion, Measuring geometries E and FL | ||||||||
| Sensor | E 3 | E 30 | E 100 | E 500 | E 1000 | FL 10 | FL 100 | FL 1000 |
| Cup | Beaker and sample volume depend on application | |||||||
| Adapter | Adapter is required (part.-no 808-0579 or 222-1359) | |||||||
| Application | Fast and simple relative measurements | Relative measurem. of disperse samples | ||||||
| Temperature | -30 ... +200 °C | |||||||
| Viscosity (mPas) | 3 - 102 | 102 - 105 | 103 - 106 | 5·103 - 5·106 | 104 - 107 | 102 - 105 | 10- - 106 | 104 - 107 |
| Radius, Lenght (mm) | 25 / 116 | 12 / 50.5 | 8 / 34.5 | 5 / 9 | 3.5 / 17.7 | 20 / 60 | 11 / 16 | 5 / 8.8 |
| Repeatability(± %) | 3 | 3 | 3 | 5 | 5 | 3 | 5 | 5 |
| ISO / ASTM | |||||||
| Sensor | B 1 | B 2 | B 3 | B 4 | B 5 | B 6 | B 7 |
| Cup | Beaker and sample volume depend on application | ||||||
| Adapter | ISO-Adapter is required, part.-no 222-1204 | ||||||
| Application | Viscosity measurement according to ISO 2555, ASTM D 115-72, D789-73, D2196-68 | ||||||
| Temperature | -30 ... +200 °C | ||||||
| Viscosity (mPas) | 102 - 105 | 500 - 5·105 | 103 - 106 | 2·103 - 2·106 | 3·103 - 5·106 | 8·103 - 107 | 3·104 - 5·107 |
| Radius, Length (mm) | 28.13 / 22.5 | 23.5 - 1.65 | 17.35 - 1.65 | 13.65 - 1.65 | 10.55 - 1.65 | 7.3 - 1.65 | 1.6 - 50.4 |
| Repeatability (± %) | 3 | 4 | 5 | 5 | 5 | 5 | 7 |
If you have any questions about Haake products please feel free to contact us.