Overview
Shanghai JINGTIAN HBDV-2 digital display Rotational Viscometer is a precision measuring instrument with a wide range of ranges. Its LCD screen can fully display various parameters such as viscosity, shear rate, shear stress, speed, temperature, percentimeter torque, rotor number and the maximum viscosity value of the selected rotor at the current speed. This model is equipped with a small number of sample adapters, including rotors 21, 27, 28, 29, which are especially suitable for test scenarios with small or expensive samples.
Features
1. The LCD screen can display various information such as viscosity, shear rate, shear stress, speed, temperature, percentile torque, rotor number and maximum measurable viscosity value.
The range is wide, covering 320 to 320,000,000 mPa · s.
3. Equipped with a small number of sample adapters, the sample requirement is only 10~ 20mL, suitable for testing valuable samples.
4. Thermostatic bath can be connected to external circulation to control the temperature of the tested sample.
5. Easy to disassemble and clean.
6. Using continuously variable speed mode, Rotor speed can be adjusted in the range of 0.1~ 200rpm.
7. Provide a variety of rotor specifications (R2, R3, R4, R5, R6, R7, 21 #, 27 #, 28 #, 29 #) to adapt to different measurement needs.
Principle
The digital Rotational Viscometer works based on the swirl/spin Measurement principle. The instrument drives the selected rotor to swirl/spin at a set speed in the sample, and the Tack resistance of the rotor in the fluid generates torque. The instrument calculates the viscosity value of the sample and the Miscellaneous rheological parameters such as shear rate and shear stress through accurate measurement of this torque value, combined with parameters such as rotor specification and speed.
Applications
Chemical, Petroleum, Food, Pharmaceutical, Coating, Adhesive, Research Institutes and other fields that require accurate measurement of fluid viscosity.
Steps
1. According to the estimated sample viscosity range, select the appropriate rotor and install it on the Viscometer.
2. Pour 10 to 20 mL of the tested sample into the adapter container.
3. Slowly lower the Viscometer host with the rotor installed so that the rotor is immersed in the sample to the specified marking line.
4. If temperature control is required, connect the external circulation Thermostatic bath and set the required temperature until the sample temperature is stable.
5. Turn on the power and set the required measurement speed through the instrument panel.
6. Start the measurement, after the reading is stable, read the viscosity and Miscellaneous related parameters from the LCD screen.
7. After the measurement is completed, raise the main engine, remove the rotor and clean it.
Notice
* Please select the appropriate rotor and speed combination according to the estimated viscosity to ensure that the measurement value is within the range of the instrument.
When installing and removing the rotor, care should be taken to avoid damage to the shaft or rotor connector.
* Ensure that the rotor is fully immersed in the sample to the specified marking line and that the rotor is centered in the sample to reduce measurement errors.
* Before measurement, ensure that the sample temperature is uniform and stable, and temperature changes will affect the viscosity measurement results.
* After use, the rotor and sample adapter should be thoroughly cleaned in time to prevent sample residues from affecting subsequent Measurement accuracy or corroding parts.
Please use the instrument's dedicated power adapter (input 100~ 240V, 50~ 60Hz).
The instrument should be placed on a stable, vibration-free surface for operation.
