Brookfield DVNext Cone/Plate Rheometer, LV Torque, Threaded, Point/Jewel, Compliant

Brookfield DVNext Cone/Plate Rheometer, LV Torque, Threaded, Point/Jewel, Compliant

The DVNext Wells-Brookfield Cone/Plate Rheometer is a highly advanced tool designed for researchers to accurately measure the absolute viscosity of fluids with small sample volumes. Its cone and plate geometry ensure precise and reliable rheological data for a wide range of applications.

How It Works

The rheometer operates as a precision torque meter driven at specific rotational speeds. A calibrated beryllium-copper spring connects the drive mechanism to a rotating cone, measuring resistance caused by the sample fluid between the cone and a stationary flat plate. This resistance generates torque, which corresponds to the fluid's shear stress. Viscosity readings, measured in centipoise (mPa·s), can be obtained directly from pre-calculated charts or calculated using the cone’s geometry, rotation rate, and torque.

The instrument’s setup is user-friendly, requiring no external gauges. The sample cup, which holds 0.5 to 2.0 mL of fluid, is easy to remove, fill, and remount without affecting calibration. It features a jacketed design with tube fittings for connection to a temperature-controlled circulating bath, ensuring precise thermal regulation. The system offers an accuracy of ±1.0% of the full-scale range and reproducibility of ±0.2%. Its working temperature range spans from 0°C to 100°C.

The DVNext Rheometer comes with a calibrated cone spindle for use with its sample cup, though additional spindles can be purchased and calibrated separately for added flexibility.

Key Features & Benefits

• Small Sample Capability: Measures absolute viscosity with just 0.5 – 2.0 mL of fluid.
• Accurate Shear Rates: Ideal for analyzing flow curve behavior.
• Temperature Control: Rapid and precise adjustments for reliable results.
• Easy Setup: Electronic gap adjustment simplifies preparation and improves efficiency.
• Enhanced Precision: Auto-zero function ensures precise torque measurements.
• Dynamic Range: Auto-range defines full-scale range for all spindle and speed combinations.
• High Accuracy: Torque measurement accuracy of ±1% of the full-scale range.
• Exceptional Repeatability: Reproducibility within ±0.2% of the full-scale range.

The DVNext Wells-Brookfield Cone/Plate Rheometer provides unmatched precision and ease of use, making it a trusted choice for professionals seeking reliable viscosity data from small fluid samples.

What's Included

• Instrument
• Lab Stand (Model G)
• Carrying Case

Note: Requires at least 1 CPA spindle and 1 CPA sample cup to operate.