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Accurate viscosity measurements are crucial for quality control, research, and process optimization across numerous industries. Selecting the right lab viscometer ensures reliable data, preventing costly errors and ensuring product consistency. This guide will help you navigate the key features and considerations to find the ideal instrument for your laboratory needs.
High Measuring Accuracy: Measurement range: 1mPa.S-100,000mPa.S (1mPa.S=1cp) Measurement error:±3%, with 5 rotors (No. 0,1, 2, 3, and 4) and 4 speeds (6, 12, 30, 60 rpm), which are composed of 20 combinations. You can determine viscosity as low as 1mPa.s...
Microcomputer Control Technology: Adopts advanced mechanical design, manufacturing technology and microcomputer control technology.This lab viscometers can be customized the data storage function. If you need output data to a computer, we will customize...
LCD Digital Display:Has perfect data acquisition,can display the number of rotors, speed, viscosity, percentage,and temperature at the same time; the LCD display uses high-brightness blue backlight to display the results more clearly.
Reliable and Easy to use: Has a measurement of high sensitivity, so the test results are reliable, and also, the operation is very easy.With automatic search function, when you don't know what rotor and speed to choose, it can quickly help you find the...
Application: This rotary viscometer can be used to measure the absolute viscosity of the Newtonian liquids and the apparent viscosity of the Non-Newtonian liquid. Also can be widely used in the tests the viscosity of the oil, paint, plastics, paints...
[±5% ACCURACY] The viscometer uses a graduated disk, and the viscosity values are measured by moving the rotor rotation through the spinneret and spindle, has a large viscosity measurement range 10-100,000cps and the measurement error: ±5%, give your...
[ROTORS x ROTATION RATE] Different rotors (1,2,3,4) can be selected according to the viscosity range of different test liquids, and different speed (60,30,12,6) can be set. The knob adjustment is straightforward with a coefficient table on the top for...
[LIGHT WEIGHT BUT PRACTIALl] The rotary viscometer is light in weight, easy to move and operate flexibly. The helical gear lifting system effectively ensures that the viscometer can move up and down easily without sliding down by itself, which ensures the...
[APPLICATION] NDJ-1 has been widely used to determine and measure the liquid viscosity in many application such as grease, painting, plastic, pharmacy and adhesives. There are no limitations about the liquid, just put the rotor into the liquid and test...
[GOOD WARRANTY] Viscosity meter tester is a precison instrument to monitor and control the stable quality of products in the manufacturing.The whole set of instrument has good quakeproof packing to ensure the precision of instrument. We also offer a...
Efficient Data Processing：Equipped with an RS232 interface, a temperature probe, and special software, it supports data setting on the computer and transfer to the viscometer. You can view, save, and print the viscosity change curve in real time. It can...
Accurate Measurement Performance：With a high-precision single-chip microcomputer built-in, the measurement error is only ±3%, and the measurement range is from 10mPa.S to 200,000mPa.S. It is equipped with 4 rotors (No. 1 - 4) and 4 rotating speeds...
Convenient Operation Experience：The digital LED screen is combined with a soft touch screen, intuitively displaying parameters such as the rotor, rotating speed, viscosity, percentage, and temperature, making it convenient for immediate setting and...
Humanized Design：Four rotors are suitable for samples with different viscosity levels. The high-quality lifting system and angle adjustment function reduce measurement errors. You can adjust the height and position by turning the knobs. The level bubble...
Wide Range of Application Scenarios：It is suitable for measuring the absolute viscosity of Newtonian liquids and the apparent viscosity of non-Newtonian liquids, covering many fields such as inks, paints, adhesives, cosmetics, pharmaceuticals...
Parameters: Measurement range 10-100,000mPa.S; Accuracy of 2%; Resolution of 0.01mPa.S; Voltage 100 to 240V; Rotor 1/2/3/4#.
Touch Screen: The color touch screen can be direct displays viscosity, speed, temperature, percent torque, rotor number and selected rotor number at current rotation
SCAN Function: When you don't know the approximate viscosity of the liquid, the scanning function will automatically search for the correct rotor and speed for you.
Data output: This viscometer can directly display readings or be a curve chart (Note: Charts cannot be saved and can only be viewed in real-time). It can store 50 sets of data and can be connected to a printer.
Application scenarios: Widely used for viscosity measurement of various fluids such as oils, paints, plastics, food, paints, adhesives, resins, chemical raw materials, etc.
Accurate and Reliable Measurement: This viscometer features a measurement range of 10-2,000,000 cP and includes four spindles (#1–#4). It delivers ±2% measurement accuracy for consistent viscosity measurement results
Easy Balance Calibration: The upgraded front balance adjustment on the viscometer allows seated observation of the bubble level and fine-tune leveling, reducing repeated standing during setup and improving operational convenience
Easy-to-Read LCD Display: The LCD screen of the rotary viscometer displays the spindle number, rotation speed, viscosity value, torque percentage, and temperature for easy viewing during operation
Data Transfer & Output Support: Equipped with an RS232 interface, the digital rotational viscosity meter supports PC connectivity to transfer and store test data and printer output to avoid manual recording
Wide Applications: This digital viscometer measures the viscosity of fluids such as cooking oil, honey, paint, and cosmetics and is suitable for use in many settings
Accurate and Reliable Measurement: This viscometer features a measurement range of 10-100,000 cP and includes four spindles (#1–#4). It delivers ±2% measurement accuracy for consistent viscosity measurement results
Easy Balance Calibration: The upgraded front balance adjustment on the viscometer allows seated observation of the bubble level and fine-tune leveling, reducing repeated standing during setup and improving operational convenience
Easy-to-Read LCD Display: The LCD screen of the rotary viscometer displays the spindle number, rotation speed, viscosity value, torque percentage, and temperature for easy viewing during operation
Data Transfer & Output Support: Equipped with an RS232 interface, the digital rotational viscosity meter supports PC connectivity to transfer and store test data and printer output to avoid manual recording
Wide Applications: This digital viscometer measures the viscosity of fluids such as cooking oil, honey, paint, and cosmetics and is suitable for use in many settings
Application: The viscometer is used for testing the apparent viscosity of non-Newtonian fluid and the absolute viscosity of the Newtonian fluid. It's compatible for solvent based adhesive, paints, inks (screen printing), oils, milkshake, honey, cosmetics...
LCD Display: Display in spindle, speed, temperature(℃), mPas and % torque. Clear and accurate reading.(% torque should be controlled in 15%-85% and around 50% is most suitable)
4 Rotors&4 Speed-It is very convenient for users to choose the rotor and rotor velocity correctly for testing liquid, because of the % function displaying the proportion of the measured value in the total range.
Sliding Design: The viscometer can slide up and down by adjusting the hand shank to adjust to solution container of different height.
Data Output: The viscometer can connected to a PC, an unlimited amount of data can be stored. Equipped with a RS232 to USB cable to connect to a computer for data output.(The software is stored in a USB drive inside the package)
Application: The viscometer is used for testing the apparent viscosity of non-Newtonian fluid and the absolute viscosity of the Newtonian fluid. It's compatible for solvent based adhesive, paints, inks (screen printing), oils, milkshake, honey, cosmetics...
LCD Display: Display in spindle, speed, temperature(℃), mPas and % torque. Clear and accurate reading.(% torque should be controlled in 15%-85% and around 50% is most suitable)
4 Rotors&8 Speed-It is very convenient for users to choose the rotor and rotor velocity correctly for testing liquid, because of the % function displaying the proportion of the measured value in the total range.
Sliding Design: The viscometer can slide up and down by adjusting the hand shank to adjust to solution container of different height.
Data Output: The viscometer can connected to a PC, an unlimited amount of data can be stored. Equipped with a RS232 to USB cable to connect to a computer for data output.(The software is stored in a USB drive inside the package)
Application: The viscometer is used for testing the apparent viscosity of non-Newtonian fluid and the absolute viscosity of the Newtonian fluid. It's compatible for solvent based adhesive, paints, inks (screen printing), oils, milkshake, honey, cosmetics...
±1% Accuracy: Measurement range: 10-2,000,000mPa.S(1mPa.S=1cp) Measurement error: ±1%, with 4 rotors (No. 1, 2, 3, and 4) and 8 speeds (0.3, 0.6, 1.5, 3, 6, 12, 30, 60 rpm), which are composed of 32 combinations. You can determine viscosity as low as...
Touch Screen Display: Display in spindle, speed, temperature(℃), time, mPas and % torque. Clear and accurate reading.(% torque should be controlled in 15%-85% and around 50% is most suitable)
Data Output: The viscometer can store 20 records, and when the 21st record is stored, the first record is automatically deleted. If connected to a PC, an unlimited amount of data can be stored. Equipped with a USB interface to connect to a computer for...
Sliding Design: The viscosity meter can slide up and down by adjusting the hand shank to adjust to solution container of different height.
Last update on 2026-07-18 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Lab Viscometers
Understanding Viscometer Types
Rotational Viscometers: These are the most common type, measuring the torque required to rotate a spindle in a fluid. They are versatile and suitable for a wide range of viscosities, from low to very high.
Capillary Viscometers: These measure the time it takes for a liquid to flow through a narrow capillary tube under gravity or pressure. They are often used for precise measurements of Newtonian fluids, particularly in the oil and polymer industries.
Vibrational Viscometers: These use a vibrating element immersed in the fluid. The damping of the vibration is related to the fluid's viscosity. They are known for their robustness and ability to handle challenging samples.
Key Features to Consider
Viscosity Range: Ensure the instrument covers the expected viscosity range of your samples. Some models offer interchangeable spindles or sensors for broader coverage.
Temperature Control: Viscosity is highly temperature-dependent. Look for models with integrated or compatible temperature control systems (e.g., water baths, Peltier elements) for accurate and reproducible results.
Spindle/Sensor Options: Different spindle geometries are designed for specific viscosity ranges and sample types. Check the availability and compatibility of various options.
Data Logging and Connectivity: Consider whether you need features like built-in memory for data storage, USB ports for data transfer, or compatibility with LIMS (Laboratory Information Management Systems).
Application-Specific Needs
Newtonian vs. Non-Newtonian Fluids: Newtonian fluids have a constant viscosity regardless of shear rate, while non-Newtonian fluids (like paints or gels) change viscosity. Rotational viscometers are generally better for non-Newtonian fluids.
Sample Volume and Viscosity: Very low viscosity samples might require specialized setups, while high viscosity materials may necessitate specific torque capabilities.
Portability and Environment: For field applications or environments with limited space, consider portable or handheld models. Ensure the instrument is suitable for your laboratory’s operating conditions.
Frequently Asked Questions
What is the difference between a viscometer and a rheometer?
A viscometer primarily measures viscosity, which is the resistance to flow. A rheometer is a more advanced instrument that measures both viscosity and other flow properties like elasticity and viscoelasticity, providing a more comprehensive understanding of a fluid's behavior.
How often should a viscometer be calibrated?
Calibration frequency depends on usage and industry standards, but typically ranges from annually to semi-annually. Regular calibration ensures the accuracy and reliability of your viscosity measurements.
Can I use a viscometer for any type of liquid?
While many viscometers are versatile, the suitability depends on the liquid's properties and the instrument's specifications. Factors like viscosity range, temperature sensitivity, and whether the fluid is Newtonian or non-Newtonian are important considerations.
What is a Newtonian fluid?
A Newtonian fluid is one where the viscosity remains constant regardless of the applied shear rate or stress. Water and many simple solvents are examples of Newtonian fluids.
What is the importance of temperature control when measuring viscosity?
Viscosity is highly sensitive to temperature changes. Maintaining a precise and consistent temperature during measurement is critical for obtaining accurate, reproducible, and comparable viscosity data.
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