Understanding viscosity and its measurement is crucial across various industries, from food processing to cosmetics. Digital viscometers have emerged as popular tools due to their precision, user-friendliness, and portability. This guide offers step-by-step instructions for utilizing a digital viscometer effectively.

Low Viscosity Viscometer

Selecting Rotor and Setup:

Begin by selecting the appropriate rotor based on the fluid's viscosity range. Attach the rotor securely by screwing it counterclockwise onto the connecting screw. Then, fit the fixed sleeve onto the viscometer body, aligning the groove with the pin and securing it with the fastening screw.

Sample Preparation:

Prepare a clean, dry sample container and pour 20-25 mL of the sample liquid into it. Insert the container into the fixed sleeve and tighten it securely. Ensure the sample liquid is at the desired temperature for accurate measurements.

digital viscometer

Measurement Procedure with Bottomless Outer Container:

If utilizing a bottomless outer container, immerse the rotor and outer container into the fluid until the groove on the outer container aligns with the liquid surface. Lower them carefully until the groove is at the surface level.

Conducting the Measurement:

Turn on the viscometer and select the desired rotational speed or shear rate. Allow the viscometer to stabilize at the chosen speed before recording the viscosity reading displayed.

Cleaning and Maintenance:

After each measurement, clean the viscometer thoroughly by removing the sample container and cleaning it along with the rotor and connecting screw using appropriate methods. Regularly inspect the viscometer for any signs of damage or wear, contacting the manufacturer for repairs if necessary.


Accurate viscosity measurements are essential, and mastering the operation of a digital viscometer ensures reliable results. By following these detailed steps, users can maximize the effectiveness of their digital viscometer, contributing to enhanced performance across various applications.