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A viscometer is a physical analysis instrument for measuring fluid viscosity. Viscosity is a physical property of fluid substances, which reflects the internal friction between molecules when the fluid is subjected to external force. The viscosity of a substance is closely related to its chemical composition. In industrial production and scientific research, the composition or quality of substances is often monitored by measuring viscosity. For example, in the production process of polymer materials, the viscometer can be used to monitor the viscosity of the reaction product and automatically control the end of the reaction. Others such as oil cracking, lubricating oil blending, automatic production process control of certain foods and medicines, monitoring of crude oil pipeline transportation process, quality inspection of various petroleum products and paints, etc., all require viscosity measurement.

1. The machine must adhere to the horizontal condition

2. When the rotor is put into the sample, it is necessary to prevent the occurrence of air bubbles, otherwise the measured viscosity value will decrease. The way to prevent it is to put the rotor into the sample skewed, and then install the rotor. The rotor cannot touch the cup wall and bottom of the cup. The sample to be measured must not exceed the regular scale.

3. When measuring different samples, it is necessary to keep the rotor clean and dry. If the rotor has other samples or residual water after cleaning, it will affect the accuracy of the measurement.

4. The maximum acidity (PH) should not exceed 2. If the acidity is too large, a special rotor should be used. When using ULA, the sample volume should be determined (only 16ml)

5. Select the viscosity standard liquid according to the measured viscosity scale, and verify the instrument before each use of the viscometer or rheometer, or check regularly to ensure the accuracy of the measurement. BROOKFIELD can provide silicone oil or oil standard products of various viscosity scales that meet the properties of Newtonian fluids, with an accuracy of ±1%, and the recommended service life of viscosity standard fluids is one year from opening.

6. When connecting the rotor, use your left hand to quietly hold and hold the mandrel (on the main unit), and rotate the rotor with your right hand. This operation is to maintain the mandrel and hairspring in the fuselage, which can extend the service life of the instrument

7. The value should be taken when the value is relatively stable, otherwise there will be large errors in the obtained value

8. When selecting a rotor, the viscosity of the sample to be measured is the closest to the measurement scale of the rotor, so choose the number.