3ASC25H214 DATX130 Rotor feedback board ABB

3ASC25H214 DATX130

When the end concave coaxial cylinder is put into the sample, it is easier to capture the bubbles in the sample, which can effectively eliminate the end effect and improve the accuracy of the test. Variable temperature test is not recommended for this rotor, because when the temperature changes, the bubbles captured on the concave surface at the bottom of the rotor will change with the temperature, thus affecting the test results.

The inner wall and outer wall of the double-slit coaxial cylinder can contact the sample at the same time, which can not only effectively eliminate the end effect, but also increase the contact area with the sample. Compared with the first two kinds of coaxial cylinder rotors, it is more suitable for testing the samples with low viscosity.

Each kind of coaxial cylinder has different sizes to choose from, can be calculated according to the viscosity and modulus calculation formula of the applicable rotor size, or according to the rotor’s own parameter information to choose, generally the lower the viscosity of the sample to be tested, the larger the rotor diameter.

Attention should be paid to the selection of coaxial cylinder rotor:

1. As the sample quantity is sufficient, and a layer of anti-volatilizing liquid can be added on the upper surface of the sample, it is recommended to choose this type of rotor when testing volatile samples;

2, different size of the rotor, the required test sample quantity is different, generally need a few ml to dozens of ml;

3. The rotor needs to be cleaned after the test, which takes different time according to different sample properties;

4. This type of rotor cannot measure the di – normal stress difference.

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