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Use of a viscometer

Article source:LAWSON Author:Lawson Popularity: 167 Issuing Time:2018/3/3 9:27:36

Viscometer use:

1. The machine must be kept level.

2. Avoid generating air bubbles when the rotor is put into the sample, otherwise the measured viscosity value will decrease. The way to avoid it is to put the rotor into the sample at an angle, and then install the rotor. The rotor cannot touch the cup wall and the bottom of the cup. The sample to be measured must not exceed the specified scale.

3. When measuring different samples, the rotor must be kept 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 solution according to the measured viscosity range, and verify the instrument before each use of the viscometer or rheometer, or check it regularly to ensure the accuracy of the measurement. BROOKFIELD can provide silicone oil or oil standard products in accordance with Newtonian fluid properties in various viscosity ranges, with an accuracy of ±1%.

6. The value should be selected when the value is relatively stable, otherwise there will be a large error in the obtained value.

7. When choosing a rotor, it depends on the viscosity of the sample to be measured and the measurement range of the number of rotors that are closest to it, so select the number of numbers.

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


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