ATAGO VISCO B (L) Viscometer for Low-Viscosity Liquids and Industrial Fluids (1–100,000 mPa·s)

The Visco Digital Viscometer is extremely simple to configure. The spindle can be fixed with just "one-touch" — just place the spindle into the device. No complex installation necessary at all.

Quick & Intuitive Setup

The measurement setup can be easily performed with just one hand. Place the beaker in the assigned location and secure the device on the stand. No troublesome height adjustment is required. The process requires only one dial button. Any function can be carried out by simply "sliding" or "pushing" the dial button, reducing the risk of unintended actions caused by pressing the wrong key. This streamlined configuration makes the VISCO™ ideal for both laboratory technicians and production floor operators who need fast, repeatable viscosity measurements.

Applications for VISCO™

• Miso
• Beverages
• Rice Porridge
• Batter
• Shampoo
• Conditioner
• Hand cream
• Toothpaste
• Yogurt
• Ice cream
• Bean paste
• Sauce
• Curry
• Tomato ketchup
• Butter
• Chocolate
• Paint
• Cleaning solution
• Engine oil
• Thickener

Other Applications

• Condiment
• Olive oil
• Honey and jam
• Fried egg
• Jelly and agar
• Cosmetics
• Adhesive
• Water glass
• Resin, Polymer
• Insulator
• Glycerin
• Lubricant
• Slurry

The Atago 6840 Digital Viscometer is widely used by laboratories, food and beverage manufacturers, cosmetic formulators, and quality control teams to measure the viscosity of liquids and semi‑solids with precision. Digital viscometers determine a fluid’s resistance to flow, providing quantitative viscosity data that help verify product consistency, texture, and process control — a standard quality parameter in formulations such as sauces, creams, syrups, and paints. Industry technical resources on viscosity measurement note that controlled rotational viscometers deliver repeatable results that support formulation and troubleshooting workflows.

Professionals value the 6840 Digital Viscometer for its accurate torque‑based measurement, adjustable spindle speeds, and easy‑to‑read digital display that support routine testing. Compared with simple flow cups or manual methods, a digital viscometer provides more detailed rheological data and better repeatability, improving quality control and formulation verification in food, beverage, pharmaceutical, cosmetic, and industrial product testing environments.

Digital Viscometer Visco

What is a Viscometer? A viscometer is an analytical instrument designed to measure the viscosity of liquids and semi-solids. There are different types of viscometers that use various measurement methods. For example, in the Japanese Industrial Standard JIS Z 8803, viscometers are classified as follows:

• Capillary viscometers    
• Falling ball viscometers
• Rotational viscometers   
• Vibrational viscometer.

There are also other measurement methods, such as viscosity cups and Line Spread Tests (LST). ATAGO's viscosity meter VISCO™ measures based on the principle of rotational viscosity, one of the most widely accepted and reliable techniques for quality control and R&D applications.

Principle of Rotational Viscometer: The rotational viscometer is among the most frequently utilized viscosity measurement instruments. The design is straightforward, user-friendly, and offers a broad measurement range that can be assessed with excellent precision and repeatability. Viscosity is determined by measuring the torque (shear stress) exerted on the cylindrical surface when a spindle is inserted into the sample and rotated at a constant speed.

Different spindle configurations are available, including coaxial double cylinder, single cylindrical, and cone-and-plate designs. The cone-and-plate system can evaluate the flow properties of non-Newtonian fluids by altering

rotational speed. Function and Design

Why VISCO™

Easy Operation Assembly takes approximately 30 seconds. The simplified design reduces preparation and cleanup time, making routine viscosity testing more accessible and less labor-intensive. With only one multifunction dial button, setup and measurement can be completed with one hand, increasing productivity in busy environments.

Small Sample Volume The required sample volume is only 15 mL or 100 mL, depending on the configuration. This minimizes material waste and significantly reduces cleaning time. Disposable Containers VISCO™ can measure samples using paper or plastic cups. Disposable containers eliminate the need for washing glassware and improve safety in facilities where glass is restricted.

Battery Powered VISCO™ operates with an AC adapter or batteries, offering approximately seven hours of battery life. This flexibility allows viscosity measurements to be performed anywhere, from laboratory benches to on-site production areas. Lab to the Production Site With a compact height of 20 cm and a weight of only 895 g, ATAGO's VISCO™ is lightweight and portable, making it easy to transport between departments.

Incredible Cost Performance VISCO™ is priced at less than half the cost of many traditional B-type viscometers, delivering professional-grade performance at an accessible investment. Reliable Measurement of Low Viscosity Samples Low-viscosity liquids can also be measured accurately using the optional adapter designed specifically for such applications. Calibration and Standard Solution

Calibration ensures that the measured value matches the true viscosity value. Regular calibration is essential for maintaining reliable and traceable measurement results. It is recommended when environmental conditions change significantly or when results deviate from expected values. The frequency of calibration should be determined based on usage conditions and quality control requirements. ATAGO's VISCO™ offers a range of standard viscosity solutions in different values. For best accuracy, select a standard solution close to the expected viscosity of your sample.

Q&A

What type of samples can the VISCO™ measure?

The VISCO™ rotational viscometer can measure a wide range of liquids and semi-solids, including food products, cosmetics, chemicals, oils, adhesives, and industrial fluids. It is suitable for both low- and high-viscosity materials.

Is the VISCO™ suitable for on-site production testing?

Yes. Its compact size, lightweight design, and battery operation make it ideal for both laboratory and production environments.

How often should the viscometer be calibrated?

Calibration frequency depends on usage and quality requirements. It is generally recommended after significant environmental changes or when measurement results appear inconsistent. Using certified standard viscosity liquids ensures reliable performance.

Munsell Soil Color Charts

Munsell Soil Color Charts provide a standardized and globally recognized system for identifying and communicating soil color. Professionals across agriculture, environmental science, geology, archaeology, forestry, construction, and education rely on these charts to ensure consistent soil classification and reporting.

By accurately determining soil color, users can better understand soil composition, drainage characteristics, organic matter content, and potential land use. Soil color also offers valuable insight into soil history and environmental conditions.

Munsell Soil Color Charts

• Munsell 10R Soil Chart
• Munsell 10YR Soil Chart
• Munsell 2.5Y Soil Chart
• Munsell 2.5YR Soil Chart
• Munsell 5Y Soil Chart
• Munsell 5YR Soil Chart
• Munsell 7.5YR Soil
• 10Y - 5GY Colors - Olive greens Soil Chart
• Gray 1 & 2 (2 - Separate Charts) Soil Charts
• Munsell 5R Individual Soil Chart
• Munsell 7.5R Individual Soil Chart
• "New" White Page, 7.5R, 10YR, & 2.5Y

Features

• 10Y and 5GY soil chart for glauconitic soils
• 5R soil chart for Australia and Southeast Asia
• 7.5R soil chart for tropical and semi-tropical soils
• Binder Dimensions: 6” x 7.75” x 1”; Page Size 4 3/8” x 7 1/4”; Weight 3 lbs or 1.3 kgs

Q&A

Who uses Munsell Soil Color Charts?

They are widely used by soil scientists, geologists, archaeologists, environmental consultants, agronomists, educators, and construction professionals who require accurate soil classification.

Why is soil color important?

Soil color helps identify mineral content, drainage conditions, organic matter levels, and overall soil health, supporting better land management and environmental assessment decisions.

Are the charts suitable for field use?

Yes. The durable binder format and compact size make them practical for both fieldwork and laboratory analysis.