1. Be careful when loading and unloading the rotor. When loading and unloading, lift the connecting screw slightly and do not apply excessive force. Do not subject the rotor to lateral force to prevent it from bending.

2. Please do not place the viscometer with the rotor installed on it sideways or upside down.

3. Keep the connection end face and thread of the connecting screw and rotor clean, otherwise it will affect the rotor's shaking degree.

4. When lifting the viscometer, it should be supported by hand to prevent it from falling due to its own weight.

5. After replacing the rotor, please enter the new rotor number in a timely manner. After each use, the replaced rotor should be promptly cleaned (wiped clean) and returned to the rotor frame. Please do not leave the rotor on the instrument for cleaning.

6. When exchanging the measured liquid, please clean (wipe clean) the rotor and rotor protection frame in a timely manner to avoid measurement errors caused by mixing the measured liquid.

7. The instrument and rotor are matched one-to-one, please do not confuse several instruments and rotors.

8. Please do not disassemble or adjust the instrument parts at will.

9. When moving and transporting instruments, the yellow cap should be installed at the connecting screw, and the screw should be tightened and placed in the packaging box.

10. After installing the rotor, please do not rotate it for a long time without liquid to avoid damaging the shaft tip.

11. There are many non Newtonian liquids in suspensions, emulsions, polymers, and other high viscosity liquids, whose viscosity values vary with conditions such as shear velocity and time. Therefore, inconsistent results measured at different rotors, speeds, and times are normal and not instrument errors. The determination of non Newtonian liquids should generally specify the rotor, speed, and time.

12. The following points will help to measure more accurate values:

Accurately control the temperature of the measured liquid.

Immerse the rotor in the measured liquid for a sufficient amount of time to ensure that the temperatures of both are consistent.

Maintain the uniformity of the liquid.

When measuring, place the rotor at the center of the container and be sure to install a rotor protection frame.

Ensure the cleanliness and shaking of the rotor.

When the high-speed measurement immediately changes to low speed, the machine should be turned off or the measurement time at low speed should be slightly longer to overcome errors caused by liquid rotational inertia.