Overview
The RVDV-2 + LC-1008 Thermostatic bath digital Rotational Viscometer is a laboratory instrument designed for High Accuracy fluid viscosity measurement. Its viscosity measurement range is wide, from 40 to 40,000,000 mPa · s, which can meet the testing needs of a variety of complex fluids. The device is equipped with a digital display Operating interface, which can clearly display key parameters such as viscosity, shear rate, shear stress, Rotation speed, temperature, etc. At the same time, it provides the rotor number and the maximum viscosity value that can be measured at the current Rotation speed. Easy to operate and intuitive data reading. The LC-1008 Thermostatic bath uses intelligent PID temperature control technology. Temperature range is -10 ° C to 100 ° C, and Temperature Fluctuation is as low as +/- 0.05~ 0.1 ° C, ensuring High Accuracy viscosity testing under different temperature conditions.
Features
1. Wide viscosity measurement range: 40~ 40,000,000 mPa · s.
2. Digital Operating interface: clearly display parameters such as viscosity, shear rate, shear stress, Rotation speed, temperature, percentile torque, rotor number and the maximum viscosity value that can be measured at the current Rotation speed.
3. Continuously variable Rotation speed control: Speed range 0.1~ 200rpm, accurately adapt to different test requirements.
4. High Accuracy Intelligent Thermostatic bath: Intelligent PID temperature control, range -10 ℃ to 100 ℃, Temperature Fluctuation +/- 0.05~ 0.1 ℃, to ensure stable test temperature conditions.
5. Thermostatic bath internal and external circulation function: Flow rate 12L/min, effectively ensure the temperature uniformity in the tank.
6. With safety auxiliary features: Thermostatic bath is equipped with low liquid level alarm, pressure/suction pump, etc., to ensure the safe and stable operation of the equipment.
7. Measurement accuracy and reproducibility: Measurement accuracy +/- 1% F.S, reproducibility +/- 0.5% F.S.
Principle
The digital Rotational Viscometer is based on the swirl/spin method for measurement of fluid viscosity. The instrument drives a rotor of a specific specification to swirl/spin at a uniform speed in the fluid to be measured. Tack resistance to the rotor causes the spring connecting the rotor to deflect. By measuring the deflection torque, and based on the known rotor geometry and Rotation speed, the internal calculation system of the instrument can convert the viscosity value of the fluid. The accompanying Thermostatic bath provides an accurate and uniform temperature environment for the tested sample through intelligent PID temperature control technology and internal and external circulation systems, ensuring the accuracy and comparability of viscosity measurement results under different temperature conditions.
Applications
Chemical, food, and materials science
Steps
1. Connect the instrument power supply, turn on the host and Thermostatic bath power supply.
2. According to the estimated sample viscosity, select the appropriate rotor and install it on the Viscometer mainframe.
3. Place the sample to be tested in the Thermostatic bath Tank and ensure that the sample liquid level is immersed in the marking line specified by the rotor.
4. Set the required test temperature on the Thermostatic bath control panel, and start the temperature control and circulation functions.
5. After the temperature stabilizes, set the desired test Rotation speed on the Viscometer host.
6. Start the Viscometer for measurement. After the reading is stable, record the viscosity, temperature, Rotation speed and other data displayed on the screen.
7. After the measurement is completed, turn off the instrument, remove the rotor and clean it.
Notice
The instrument should be placed on a stable surface to avoid vibration.
• Please use the dedicated Power Adapter that comes with the instrument.
• When selecting a rotor, ensure that the estimated viscosity value of the sample is within the Measurement range of the rotor and Rotation speed.
• Be careful when installing the rotor to avoid collision and bending.
• During measurement, it is necessary to ensure that the depth of the rotor immersion in the sample meets the specified requirements.
• Before running the Thermostatic bath, check the liquid level to avoid low liquid level operation.
• The continuous operation time of the instrument should not exceed 100 hours.
• The instrument should be used under the allowable Ambient Temperature (5~ 32 ℃) and relative humidity (≤ 80%) conditions.
• When cleaning the rotor, use a suitable solvent to avoid scratching with hard objects.
