DISCOVERY CORE RHEOMETER 1

INTRODUCING the DISCOVERY CORE RHEOMETER The new Discovery™ Core Rheometer empowers every user to perform rheological measurements, guiding formulation development, optimizing performance and ensuring product quality. The Core Rheometer is the first system to combine wide-ranging measurements of viscosity and viscoelasticity with streamlined, walk-up usability. The new RheoGuide™ user interface enables complete operation directly from the touchscreen, with direction, illustration and validation at every step. Whether you are new to rheology, upgrading your quality control testing, or expanding...

While viscometers report only a single viscosity value within a limited range, the Core Rheometer captures the complete viscosity profile, representing material behavior across all relevant conditions. Complex fluids like suspensions, emulsions, gels, pastes and slurries are non-Newtonian. Their viscosity changes with the applied shear rate and time; it is not a single value. Characterizing the full range of viscosity is critical to understand flow behavior under real-world conditions. • Controlled shear rate • Replicate process conditions • Small sample volume • Rapid temperature control 1 High...

DISCOVERY CORE RHEOMETER VISCOELASTICITY Topical Pharmaceutical Storage Modulus G’ (Pa) Loss Modulus G” (Pa) Amplitude In this plot, a topical ointment measured with low stress in the linear viscoelastic region shows solid-like behavior (G’ > G”). Increasing stress causes the ointment to begin to flow, indicating a yield stress of 66 Pa, key information for ensuring effective dispensing, spreading and stability. Body Wash 103 Materials ranging from weakly structured dispersions to behavior, not available from traditional viscometry. The Core Rheometer’s oscillatory measurements quantify viscoelasticity...

DISCOVERY CORE RHEOMETER CORE MEASUREMENT TECHNOLOGY Precision air bearings Air bearings eliminate the mechanical friction of ball bearing designs, extending torque sensitivity down to 0.3 µN.m for flow measurements, and 0.1 µN.m for oscillation measurements. The Core Rheometer’s torque sensitivity enables measurements of viscosities as low as 1 cP, low shear rates and yield stresses, and viscoelasticity of weakly-structured fluids. Optical encoder Precisely measure rotational velocity (Shear rate) and angular deformation (Strain) Drag cup motor Flexibility to perform shear rheology in controlled...

Temperature control is key for accurate rheology data to ensure data reproducibility and evaluate materials' behavior under real-world conditions. The Core Rheometer's integrated Peltier system provides precise, rapid temperature control. Equilibration time is reduced by up to 60% compared to typical viscometer configurations, minimizing down time between different measurements. Built-in air cooling eliminates the need for a liquid circulator, reducing cost, simplifying operation, and saving valuable bench space. A silicone oil certified reference material measured at 25 °C and 50 °C, using the...

DISCOVERY CORE RHEOMETER PELTIER PLATE GEOMETRIES Parallel plate geometries offer versatility for wide ranging materials such as liquids, dispersions, creams and emulsions, gels and pastes, available in sandblasted or crosshatched surface finishes to prevent slip. Cone geometries provide a uniform shear rate, ideal for unfilled liquids. Both plate and cone geometries provide the convenience of small sample volumes (<2 mL) and easy cleaning. SmartSwap2 geometries: Cones and parallel plates, available in a range of dimensions, materials, and surfaces to meet every need

DISCOVERY CORE RHEOMETER PELTIER PLATE FEATURES Add an Insulated Solvent Trap to prevent drying during measurements. The two split-covers integrate with compatible geometries to create an evaporation barrier. The conductive interior and insulating exterior promote temperature uniformity at extended temperatures. Below, an acrylic paint’s viscosity at 10 sec-1 is measured both with and without a solvent trap cover. Uncovered, paint drying at the edge increases torque and presents as an increase in viscosity. With the solvent trap in place, drying effects are eliminated, and paint viscosity is...

DISCOVERY CORE RHEOMETER CONCENTRIC CYLINDER GEOMETRIES concentric cylinders for enhanced sensitivity to characterize viscosities as low as 1 cP, and easy fool-proof sample loading perfect for high-throughput labs. A variety of upper rotors and lower cups are available to accommodate materials and testing needs, including disposable cups for high-throughput testing.

Core 1 Automatic gap control provides faster workflow and precise gap positioning. The axial motor automatically raises and lowers the head throughout the method and controls the test gap position with 0.1 um resolution for accurate and reproducible results. 2 Touchscreen capabilities go beyond basic controls, providing a new user experience ideal for high-throughput labs. Perform routine measurements directly at the instrument without need for PC interaction. 3 Integrated lighting enhances visibility for easier, more reproducible sample preparation leading to increased data accuracy and precision....

RheoGuide is your entry point to the world of rheology, directly from the Core Rheometer touchscreen. Select a method from the app-style interface and follow instructions and illustrations through every step, eliminating sources of operator error. Results are immediately available on the touchscreen, allowing users to take immediate action, perfect for fast-paced environments. 0 Viscosity Flow Curve 0 Viscosity vs. Temperature Rheology testing improves quality and consistency by identifying variations not detected by viscometers, preventing future problems and downstream costs. These insights...

DISCOVERY CORE RHEOMETER RHEOGUIDE™ FEATURES AND BENEFITS Walk up usability: Perform routine tests directly from the instrument touchscreen, from start to finish, without need to interact with the PC. Guided operation: Pre-defined Methods and on-screen instructions and illustrations direct operator actions in a step-by-step workflow enabling every user to perform successful rheology measurements with minimal training. Validation throughout: Common sources of error are eliminated- the correct geometry is installed and calibrated, the sample information is updated, and every step is complete. When...