Selection method of digital viscometer

A digital viscometer, or digital viscometer, is an instrument used to measure the viscosity of a liquid. It calculates the viscosity of a liquid by measuring the speed at which it flows under a certain force. Compared with the traditional manual viscometer, the digital viscometer has higher precision and more convenient operation, so it is widely used in laboratories and industrial production.

Selection points

Key points for choosing a digital viscometer:

Measuring range: Select the appropriate measuring range according to the actual needs. Generally speaking, the measuring range of the digital viscometer ranges from 0.1mPa·s to 100000mPa·s, which needs to be selected according to the viscosity range of the sample to be tested.

Accuracy: The higher the accuracy of the digital display viscometer, the more accurate the measurement results, so it is necessary to choose a high-precision instrument. Generally speaking, the accuracy of digital display viscometer is within 0.5%, and the accuracy of high-precision instruments can even reach 0.2%.

Measurement method: The measurement method of digital display viscometer is generally divided into two types: rotary type and vibration type. It is necessary to choose the appropriate measurement method according to actual needs. Rotational viscometers are suitable for measuring high viscosity liquids, while vibrating viscometers are suitable for measuring low viscosity liquids.

Display mode: The display mode of the digital display viscometer is divided into two types: LCD digital display and liquid crystal screen display, and the appropriate display mode needs to be selected according to actual needs.

Precautions

Operation method: The digital display viscometer needs to be operated correctly according to the instructions to avoid misoperation affecting the measurement results.

Calibration: The digital display viscometer needs to be calibrated regularly to ensure the accuracy of the measurement results.

Cleaning and maintenance: The digital display viscometer needs to be cleaned and maintained regularly to avoid contamination and damage to the instrument.

Sample processing: Samples need to be processed before measurement, such as removing air bubbles and impurities, to ensure the accuracy of measurement results.

Temperature control: Liquid viscosity is closely related to temperature, so it is necessary to control the temperature during measurement to avoid the influence of temperature changes on the measurement results.