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Discovery Hybrid Rheometer


Catalog excerpts

Discovery Hybrid Rheometer - 1


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Discovery Hybrid Rheometer - 2

All DHR temperature systems and accessories are designed with superior performance and ease-of-use in mind. Only TA Instruments' DHR offers the convenience and versatility of Smart Swap™ geometries, temperature systems, and accessories. Smart Swap™ technologies provide fast and easy interchanging of accessories and automatic detection and configuration of the rheometer for operation. Note: For more information see also the Discovery Hybrid Rheometer Brochure DHR Temperature Systems & Accessories Peltier Plate Temperature Systems 4 Peltier Plate Accessories 12 Upper Heated Plate for Peltier...

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Discovery Hybrid Rheometer - 3


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Discovery Hybrid Rheometer - 4

ADVANCED PELTIER PLATE TEMPERATURE SYSTEM New Advanced Peltier Plate The new Advanced Peltier Plate combines ultimate flexibility with exceptional temperature performance in a single Peltier Plate temperature system designed to cover the widest range of applications. The unique Quick Change Plate system provides the ability to easily attach lower plates of different materials and surface finishes, disposable plates Stepped Plate Sandblasted Plate Disposable Plate for testing curing materials, and an Immersion Cup for characterizing materials in a fluid environment. Features and Benefits •...

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Discovery Hybrid Rheometer - 5

PELTIER PLATE TEMPERATURE SYSTEM Standard Peltier Plate The Standard Peltier Plate is the most common selection, offering an 80 mm diameter hardened surface to accommodate up to 60 mm upper plates for maximum sensitivity. Stepped Peltier Plate The Stepped Peltier Plate provides the convenience of interchanging plate diameters and Complete Peltier Plate Temperature Systems Over 20 years ago, TA Instruments first introduced Peltier Plate temperature control to surfaces up to 25 mm in diameter or for remote sample preparation. Stainless steel and titanium plates are available in flat,...

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Discovery Hybrid Rheometer - 6

PELTIER PLATE TECHNOLOGY Peltier Plate Temperature Steps over 220 °C Range 250 Widest continuous temperature range 80 mm Diameter Copper with Hardened Surface typically a circulating fluid medium such as water. Most Peltier systems have a continuous temperature range of approximately 100 °C for a single heat sink temperature. The unique Peltier Heating Elements design of the Advanced, Standard and Stepped Peltier Plate systems from TA Instruments extends the continuous range to 220 °C, as seen in data in the figure to the right. The Platinum Resistance Thermometer (PRT) benefit of this wide...

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Discovery Hybrid Rheometer - 7

PELTIER PLATE GEOMETRIES Smart Swap™ Peltier Plate Geometries Peltier plates can be used with an extensive range of TA Instruments unique Smart Swap geometries (1) with automatic recognition. Cones and plates come standard in a variety of sizes, cone angles and material types. Custom geometries of non-standard sizes, Standard Geometry Dimensions materials, and surface finishes (such as sandblasted or Teflon®-coated) are available Peltier Plate geometries are available in 8 mm, 20 mm, 25 mm, 40 mm, 50 mm, and 60 mm upon request. diameters. Upper Cone geometries are readily available in 0.5°,...

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Discovery Hybrid Rheometer - 8

PELTIER PLATE ACCESSORIES Purge Gas Cover The Purge Gas Environmental Cover is a hard-anodized aluminum two-piece split cover with 4 mm diameter compression fittings. An insulating location ring ensures precise and easy location of the cover. This cover is ideal for purging the sample area with nitrogen to Water at 40 ˚C with and without Solvent Trap prevent condensation during experiments performed below room temperature or with a humidified purge to keep a sample from drying. Peltier Solvent Trap and Evaporation Blocker The Solvent Trap cover and Solvent Trap geometry work in concert to...

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Discovery Hybrid Rheometer - 9

UPPER HEATED PLATE TEMPERATURE SYSTEM Active Temperature Control Technology (ATC) Patented Active Temperature Control (ATC) provides non-contact temperature sensing for active measurement and control of the upper testing surface. A Platinum Resistance Thermometer Upper Heated Plate For Peltier Plate (UHP) The UHP is a temperature option designed for use with Peltier plates to eliminate vertical (PRT) is housed within the special ATC draw rod. This PRT is positioned in intimate contact with the center of the upper measurement surface. The temperature signal is transmitted to a micro Cooling...

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Discovery Hybrid Rheometer - 10

UHP & ATC TEMPERATURE PERFORMANCE Silicone Oil Viscosity Standard Response to Temperature changes in UHP Sample Temperature lags, delaying reaction Material response exactly follows temperature profile The true test of any rheometer temperature control system is to compare sample response to the reported system temperature.This evaluation is especially important for a combined lower Peltier device with intimate contact heating and an upper non-contact heating device. In this situation, the top plate heats more slowly than the bottom plate. Because A plastisol is a mixture of resin and...

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Discovery Hybrid Rheometer - 11

Lower Cup Geometry Contains Sample ~ Technology The Peltier Concentric Cylinder system offers a temperature range of -20 °C to 150 °C, with a maximum heating rate up to 13 °C/min. Four Peltier heating elements are placed in intimate contact with a lower cup geometry held in place by an insulated jacket. The unique patented design(1) of the lower geometry provides fast and efficient heat transfer up the walls of the cup. A platinum resistance thermometer (PRT) is placed close to the top of the cup ensuring accurate temperature measurement and control. The maximum controllable heating rate...

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Discovery Hybrid Rheometer - 12

CONCENTRIC CYLINDER ACCESSORIES & APPLICATIONS Concentric Cylinder Solvent Trap Cover A Solvent Trap is available for the Peltier Concentric Cylinder. It includes a base reservoir Generic Container Holder and a two-piece cover that is mounted to the shaft of the rotor. The Solvent Trap provides The Generic Container Holder is a Smart Swap™ option that can hold any container with an outer diameter of up to 80 mm for characterizing materials with rotors. This allows for Two-Piece Cover a vapor barrier to seal the environment inside the cup and prevents solvent evaporation. quick off-the-shelf...

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