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Brookfield DVNext Cone/Plate Rheometer, HB, Threaded, Ball Bearing, Compliant
DVNext Wells-Brookfield Cone/Plate Rheometer
The DVNext Wells-Brookfield Cone/Plate Rheometer is a cutting-edge instrument designed for precise viscosity measurement of fluids using small sample volumes. Its cone and plate geometry ensures exceptional accuracy, making it an essential tool for generating comprehensive rheological data.
How It Works
The DVNext Rheometer operates as a precise torque meter, rotating at specific speeds. A calibrated beryllium-copper spring connects the drive mechanism to the rotating cone, measuring the resistance caused by the fluid sample between the cone and the stationary plate. This resistance generates torque proportional to the fluid’s shear stress, which can be converted directly into viscosity (mPa·s) using pre-calculated charts or calculated from the cone's geometric constants and rotational parameters.
Setting up the cone and plate is simple, requiring no external tools or gauges. The stationary plate doubles as the base of a sample cup, which accommodates 0.5 mL to 2.0 mL of fluid. The cup is jacketed for temperature control and connects to a circulating bath. The system offers an accuracy of ±1.0% of the full-scale range and reproducibility within ±0.2%. It operates efficiently across a temperature range of 0°C to 100°C.
Customizable Options
The instrument comes with one calibrated cone spindle designed for the included sample cup. Additional spindles are available for purchase and can be calibrated for seamless integration.
Key Features & Benefits
- Measures absolute viscosity of small samples (0.5–2.0 mL)
- Provides precise shear rates for studying flow behavior
- Rapid, controlled temperature adjustments
- Electronic gap adjustment for easy setup and improved efficiency
- Auto-zero for precise torque measurements
- Auto-range to define full-scale range for spindle/speed combinations
- Torque accuracy: ±1% of full-scale range
- Repeatability: ±0.2% of full-scale range
The DVNext Wells-Brookfield Cone/Plate Rheometer is a reliable and efficient solution for researchers requiring accurate and repeatable viscosity measurements in small sample volumes.
What's Included
- Instrument
- Lab Stand (Model G)
- Carrying Case
Note: Requires at least 1 CPA spindle and 1 CPA sample cup to operate.
