Analysis and explanation of the advantages of MesuLab viscometer

MesuLab Viscometer is a common instrument for measuring fluid viscosity based on rotation method, which is widely used in chemical industry, food, medicine, paint, ink and other industries. Its advantages are mainly reflected in the measurement principle, functional design, applicable scenarios and operational convenience, etc. The following is a concrete analysis:

First, the measurement principle is scientific and the results are accurate and reliable.

The shear rate is controllable and conforms to the fluid characteristics.

The motor drives the rotor to rotate at a constant speed, and the rotor is subjected to viscous resistance in the measured fluid, which is converted into torque value and viscosity.

Advantages: The shearing rate (γ = rotating speed× constant) can be controlled by adjusting the rotor model and rotating speed, and it is suitable for viscosity measurement of Newtonian fluid and non-Newtonian fluid (such as pseudoplastic fluid and expansive plastic fluid), especially for scenes that need to simulate actual processing conditions (such as stirring and pumping).

Example: When measuring tomato sauce (pseudoplastic fluid), the low-speed rotor can simulate the static storage viscosity, and the high-speed rotor can simulate the shear thinning characteristics during pumping.

Standardized measurement with high data repeatability.

According to international standards such as ASTMD2196 and ISO2555, the combination of rotor and rotating speed corresponds to a clear viscosity measurement range (for example, No.1 rotor +60rpm for measuring low-viscosity liquid and No.4 rotor +0.3rpm for measuring high-viscosity slurry).

Advantages: The data of the same model instrument is comparable among different laboratories, which is suitable for quality control and research and development scenarios.

Second, the functional design is flexible and the application scope is wide.

Multi-rotor and rotating speed combination, covering a wide viscosity range.

A variety of rotors (such as No.1 ~ No.4 standard rotors, extension rod rotors, ultra-low viscosity adapters, etc.) are standard. With different rotating speeds (0.1~200rpm), the measurable viscosity ranges from 1 MPa s (such as water) to 10^6mPa·s (such as asphalt and silica gel).

Case:

Food industry: measuring honey viscosity (about 5000 MPa s) with No.2 rotor +30rpm;

Paint industry: measure the viscosity of latex paint (about 50000mPa·s) with No.4 rotor +2rpm.

Abundant supporting accessories, suitable for complex samples.

Temperature control: an external water bath circulation system (such as BrookfieldTC550) can be used to accurately control the sample temperature (with an error of 0.1℃), so as to eliminate the influence of temperature on viscosity (for example, oil changes significantly with temperature).

Special scene accessories:

ULA ultra-low viscosity adapter: used to measure liquids (such as alcohol and solvents) with viscosity lower than 100mPa·s;

Small sample adapter (SSA): only 1~4mL samples are needed, which is suitable for precious samples or micro-tests (such as cosmetics essence and pharmaceutical intermediates);

RV/HA/HB rotor bracket: used for stable measurement of high viscosity samples.

Third, the operation is simple and intuitive, and it is suitable for multi-scene applications.

Intelligent interface, one-button measurement

Digital Brinell viscometers (such as DV3T and DV2T) are equipped with LCD screens, which can directly display parameters such as viscosity, torque, rotation speed and temperature, and support automatic mode (the instrument automatically selects the appropriate rotor and rotation speed) and manual mode (user-defined parameters).

Advantages: no complicated calculation is needed, novices can get started quickly, and it is suitable for rapid detection of production lines (such as multiple sampling measurements per hour).

Both portable and desktop models

Portable models (such as RVDVM and DV1M): small size, light weight (≤3kg), built-in battery, suitable for field measurement (such as paint construction site and field test of petroleum drilling fluid).

Desktop type (such as DV3T): supports high-precision control and data storage, and is suitable for laboratory research and development and quality inspection.

Fourth, the structure is durable and the maintenance cost is low.

Reliable materials and technology.

The fuselage adopts metal frame and corrosion-resistant coating, and the rotor is mostly made of stainless steel or aluminum alloy, which is suitable for long-term contact with chemical solvents (such as solvent-based resin in ink).

Easy-to-clean design: the rotor can be disassembled quickly, and cleaned directly with solvent (such as acetone and ethanol) to avoid the influence of sample residue on the next measurement.

Low loss and long service life

There are no vulnerable transmission parts (such as gear box seal design), and the service life of the motor can reach more than 100,000 hours, which is suitable for high-frequency use scenarios (such as production workshops that continuously measure for 8 hours every day).