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DISCOVERY HYBRID RHEOMETERSTEMPERATURE SYSTEMS AND ACCESSORIES

The World’s MostVERSATILE PLATFORM forRheological MeasurementsAll DHR temperature systems and accessories are designed with superior performanceDHR Temperature Systems & Accessoriesand ease-of-use in mind. Only TA Instruments’ DHR offers the convenience and versatilityPeltier Plate Temperature SystemsPeltier Plate AccessoriesUpper Heated Plate for Peltier PlateActive Temperature ControlPeltier Concentric CylindersPressure CellHigh Sensitivity Pressure CellElectrically Heated Concentric CylinderElectrically Heated PlateEnvironmental Test ChamberDynamic Mechanical AnalysisModular MicroscopeOptical PlateSmall Angle Light ScatteringInterfacial AccessoriesTribo-Rheometry AccessoryMagneto-RheologyRelative HumidityElectro-RheologyUV Curing AccessoriesDielectric MeasurementImmobilization CellStarch Pasting CellRheo-Raman Accessoryof Smart Swap geometries, temperature systems, and accessories. Smart Swap technologies provide fast and easy interchanging of accessories and automatic detectionand configuration of the rheometer for operation.Note: For more information see also the Discovery Hybrid Rheometer 26466

WORLD’S HIGHESTPERFORMING RHEOMETERSTheand theMOST COMPLETE range ofEASY-TO-USE ACCESSORIES

ADVANCED PELTIER PLATETEMPERATURE SYSTEMNew Advanced Peltier PlateThe new Advanced Peltier Plate combines ultimate flexibility with exceptional temperatureperformance in a single Peltier Plate temperature system designed to cover the widestrange of applications. The unique Quick Change Plate system provides the ability toeasily attach lower plates of different materials and surface finishes, disposable platesStepped PlateSandblasted PlateDisposable Platefor testing curing materials, and an Immersion Cup for characterizing materials in a fluidenvironment.Features and Benefits Smart SwapTM technology Wide temperature range: -40 C to 200 C Accurate temperature control: 0.1 C Plates and cones up to 50 mm in diameter Robust hardened finish Quick Change Plates provide flexibility for modifying lower geometry surface- Stainless steel, Anodized Aluminum and Titanium plates8 mm Stainless SteelQuick Change Plates20 mm DisposableAluminum25 mm Crosshatched40 mm Sandblasted50 mm TitaniumThe Advanced Peltier Plate’s simple bayonet-style locking ring facilitates the effortlessattachment of a wide range of different lower plate covers including hard-anodizedaluminum, titanium and stainless steel plates with smooth, sandblasted or crosshatchedsurface finishes. Standard disposable aluminum plates expand the capabilities of thesystem to test curing materials using a single Peltier Plate.40 mm AnodizedAluminum- Smooth, Sandblasted and Crosshatched plates- Disposable plates available for curing materials Fully accessorizedImmersion CupThe Advanced Peltier Plate’s Immersion Cup adds the capability of characterizing- Extremely efficient Solvent Trap with built-in Purge Covermaterial properties when completely immersed in a fluid. It is easily attached to the top- Immersion Cupof the Advanced Peltier Plate through the bayonet fixture and gives access to the sample- Camera Viewer optionfor loading, trimming, and subsequent sealing and filling – a rubber ring provides the fluidOpen platform to easily adapt custom-made lower geometriesseal. The Immersion Cup is ideally suited for investigating hydrogel materials and canaccommodate plates or cones up to 40 mm in diameter.5Peltier Plate6

PELTIER PLATE TEMPERATURE SYSTEMStandard Peltier PlateThe Standard Peltier Plate is the most common selection, offering an 80 mm diameterhardened surface to accommodate up to 60 mm upper plates for maximum sensitivity.Stepped Peltier PlateThe Stepped Peltier Plate provides the convenience of interchanging plate diameters andComplete Peltier Plate Temperature SystemsOver 20 years ago, TA Instruments first introduced Peltier Plate temperature control tosurfaces up to 25 mm in diameter or for remote sample preparation. Stainless steel andtitanium plates are available in flat, sandblasted, and crosshatched finishes.Standard Parallel PlateStepped Parallel Platerheometers. Since then, this core technology has been continuously developed andadapted to meet the expanding needs of our customers. With superior technologyStepped Disposable Peltier Platedesigned into five convenient Smart Swap models, we offer the highest performing,The Stepped Disposable Peltier Plate is ideal for thermoset curing or other single-usemost versatile, and best accessorized Peltier Plate Temperature Systems available.applications and is compatible with standard disposable plates.Dual Stage Peltier PlateThe Dual Stage Peltier Plate is the perfect choice for applications requiring sub-ambienttemperature control. The unique design uses a stacked Peltier element approach,enabling fast and easy temperature control down to an unprecedented -45 C, withoutthe use of expensive circulators.Stepped Disposable Parallel Plate7Dual Stage Parallel PlatePeltier Plate8

PELTIER PLATE TECHNOLOGYPeltier Plate Temperature Steps over 220 C Range250Widest continuous temperature range80 mm Diameter Copperwith Hardened Surfacetypically a circulating fluid medium such as water. Most Peltier systems have a continuoustemperature range of approximately 100 C for a single heat sink temperature. The uniquePeltier Heating Elementsdesign of the Advanced, Standard and Stepped Peltier Plate systems from TA Instrumentsextends the continuous range to 220 C, as seen in data in the figure to the right. ThePlatinum ResistanceThermometer (PRT)benefit of this wide range is that it more than doubles the actual useable temperaturelimit and dramatically improves cooling performance. The figure in the lower right shows200 C, heating rates up to 50 C/min, and temperature accuracy of 0.1 C. Four Peltierthat this device can reach -40 C from room temperature in under 10 minutes with a heatheating elements are placed directly in contact with a thin, 80 mm diameter, copper discsink set at 2 C.Smart Swap Baseplaced at the exact center, ensuring accurate temperature measurement and control.Heat Sink Fluid JacketHeat Sink Connectionsentire 80 mm diameter surface. This allows for accurate testing with standard geometriesup to 60 mm in diameter.*with appropriate counter-coolingDual Stage Peltier Plate DesignThe Dual Stage Peltier Plate features an innovative design that offers a temperature range48 mm Diameter Copper withHardened Chrome Surfaceof -45 C to 200 C with standard counter-cooling options. It integrates a unique stackedPeltier element configuration that provides enhanced low temperature responsivenessand continuous temperature control over the entire operating range with a single heatsink temperature of 2 C. This eliminates the need to have expensive powerful circulatorsto obtain temperatures down to this range.to obtain temperatures down to this range.Platinum ResistanceThermometer (PRT)Upper Peltier ElementFeatures and Benefits Smart Swap technology Wide Temperature Range: -45 C to 200 C Widest Continuous Temperature Range Accurate Temperature Control: 0.1 C Hardened Chrome Surface Standard, Stepped, and Dual Stage Models Plates and Cones up to 60 mm in Diameter Disposable Plates Large Variety of Geometry Materials and Types Fully Accessorized- Smooth, Crosshatched, and Sandblasted Covers- Purge Gas Cover- Insulating Thermal Cover- Camera Viewer Option- Immersion CellLower Peltier ElementsTA Peltier ContinuousTemp Range 220 C50-50020406080100120time (min)- Extremely Efficient Solvent TrapUpper Heat Sink Jacket1000Dual Stage Peltier Plate Cooling Test30Unmatched cooling performance2010Temperature ( C)with an extremely rugged, hardened surface. A platinum resistance thermometer (PRT) isAdditional Temp RangeAvailable with TA150Typical ContinuousTemp Range 100 Crange during any single test. The Dual Stage Peltier Plate extends the low temperatureAdvanced, Standard and Stepped Peltier Plates offer a temperature range of -40 C* toThe unique design provides for rapid, precise, and uniform temperature control over theTemperature ( C)Peltier temperature control devices require that they be connected to a heat sink,Peltier Technology200Performance0Heat Sink 2 C-10-20-40 C in 594 s-30-40-500500100015002000time (s)Lower Heat Sink JacketSmart Swap Base9Peltier Plate10

PELTIER PLATE GEOMETRIESSmart Swap Peltier Plate Geometries8 mm20 mm25 mm40 mm50 mm60 mmPeltier plates can be used with an extensive range of TA Instruments unique Smart SwapTMgeometries (1) with automatic recognition. Cones and plates come standard in a varietyof sizes, cone angles and material types. Custom geometries of non-standard sizes,Standard Geometry Dimensionsmaterials, and surface finishes (such as sandblasted or Teflon -coated) are availablePeltier Plate geometries are available in 8 mm, 20 mm, 25 mm, 40 mm, 50 mm, and 60 mmupon request.diameters. Upper Cone geometries are readily available in 0.5 , 1 , 2 , and 4 cone(1) U.S. Patent # 6,952,950angles. Non-standard diameters and cone angles are available upon special request. Bychanging diameter and cone angle, the measurable range of stress and strain or shearrate can be varied to capture the widest range of material properties.Peltier Plate Standard Geometry TypesPeltier Cone and Peltier Plate geometries are available in three basic types. They includegeometries without solvent trap, geometries with insulating composite heat break, andNo Solvent TrapWith Solvent TrapWith Solvent Trap andComposite heat breakgeometries with solvent trap. Heat break geometries are available in stainless steel only.Solvent trap geometries are designed for use with the solvent trap system discussedseparately. The figure to the right shows a comparison of stainless steel 40 mm geometrytypes.Yield Stress Measurements on ToothpasteEliminating Wall Slip on Toothpaste with Crosshatched Plates107Wall slip phenomena can have large effects on steady shear rheological measurements.To mitigate such issues, a roughened surface finish is typically used. The figure to the rightshows the steady state flow testing results on toothpaste with smooth and crosshatchedplate geometries. With this type of material, standard smooth surface plates slip at theSandblastedCrosshatchedinterface and lead to a false measured yield stress on the order of about 18 Pa. However,with crosshatched geometries, slip is eliminated and an accurate yield stress of 105 Pa,Materials of Construction and SurfacesPeltier Plate geometries come standard in the following materials:Stainless Steel: Rugged, very good chemical resistance for highly basic or acidic materialsStainless Steel with Composite Heat Break: Same properties as stainless steel with addedbenefit of composite heat break, which insulates upper geometry when controllingwhich is more than 5 times higher, is measured.100001000100.0Smooth plateCrosshatched plate10.0temperatures away from ambientHard-Anodized Aluminum: Excellent thermal conductivity, low mass, fair chemicalresistanceTitanium: Low mass, excellent chemical resistanceτy 105 Pa105Viscosity (Pa.s)Smoothτy 18 Pa1061.01101001000Shear Stress (Pa)Geometries are available in multiple surface finishes, including smooth, sandblasted,and crosshatched.11Peltier Plate12