Overview
The SNB-1J-T Brinell rotational viscometer is a high-temperature swirl/spin digital viscometer designed for measuring the dynamic viscosity of substances that are solids at room temperature and melt into fluids after high temperature heating (such as hot-melt adhesives, asphalt, paraffin wax, polyethylene (PE), etc.). The instrument is recommended by Adhesive Industrial Standard Compilation for accurate, fast, intuitive and easy measurement and has been selected by customers in related industries.
Features
1. Adopt a 5-inch color touchscreen for intuitive operation.
2. Wide viscosity measurement range, covering 10~ 200000mPa · s.
3. Rotor speed multi-gear adjustable, support 0.5/1/2/5/10/20/50rpm.
4. Measurement accuracy is high, reproducibility is +/- 0.5% F.S, Measurement accuracy is +/- 1% F.S.
5. High temperature measurement capability, Temperature range from room temperature to 250 ℃, temperature accuracy up to 0.1 ℃.
6. With timing function, the measurement time can be flexibly set according to the sample situation.
7. Real-time display of viscosity Linear dispersion, intuitive reflection of viscosity changes.
8. Powerful data storage function, can save 30 sets of measurement results (including rotor, speed, temperature, time and other parameters).
9. Equipped with Interface, Data and Linear dispersion printouts.
Principle
The Viscometer works on the principle of swirl/spin viscosity measurement. The instrument drives the rotor at a constant speed swirl/spin in the sample, and the rotor is subjected to the torque formed by the sample Tack resistance. The dynamic viscosity of the sample can be calculated by measuring the torque required to maintain the uniform swirl/spin of the rotor, and based on the parameters calibrated inside the instrument. The high temperature thermostatic system ensures that the sample remains molten at the set temperature for measurement.
Applications
Determination of viscosity of hot-melt adhesives, asphalt, paraffin, polyethylene (PE) and other high-temperature molten substances
Standards
Adhesive viscosity determination, HG/T3660-1999T hot-melt adhesive viscosity determination, JTG E20-2011 highway engineering asphalt and asphalt mixture test specification T0625-2011 test requirements
Steps
1. Prepare the sample to ensure it is in a moldable state.
2. Choose the appropriate rotor and speed according to the estimated viscosity.
3. Turn on the instrument power supply and set the target temperature, measurement time and other parameters through the touch screen.
4. Add the sample to the measurement vessel and install it in the Thermostatic bath of the instrument.
5. Start the heating and thermostatic program and wait for the sample temperature to reach the set value and stabilize.
6. Lower the rotor to immerse the sample to the specified depth.
7. Start the swirl/spin and measurement program, the instrument starts measurement and displays viscosity value and Linear dispersion in real time.
8. After the measurement is completed, lift the rotor, read and save the measurement result.
9. Clean rotors and measurement containers.
Notice
• Power supply voltage is 220V/50Hz before use.
• Select the appropriate rotor and rotational speed combination according to the estimated viscosity range of the sample to ensure measurement accuracy.
• The sample size should be controlled within the recommended capacity range of 15-25ml.
• During heating and high temperature operation, please pay attention to safety and avoid burns.
• After the measurement is completed, the rotor and measurement container should be cleaned in time to prevent the sample residue from affecting the subsequent measurement.
When saving data, pay attention to recording relevant information such as rotor, speed, temperature, and time.
• If you need to print data or Linear dispersion, you need to purchase a matching printer separately.
