Overview
HuiNuo JYW-200B automatic table interfacial tension instrument adopts micro-electronic computer control, equipped with new data collection software, the lower machine has a unique structure, stable and durable, and beautiful appearance. Degree of automation, accurate test results and Repeatability, double calibration function and one-button test function, simple and convenient operation.
Features
1. The ring method is adopted to support standard weight calibrating and standard medium calibrating, which can eliminate the errors caused by the shape change or pollution of the platinum ring, and can resume normal testing without replacing the platinum ring.
2. Integrated molding shell and argon arc welding process, the support structure is not tightened by screws to ensure stability.
3, Low noise, Low Rotation speed DC motor drive internal screw structure, lifting shaft with oil-free self-lubricating bearing, test process vibration, no shaking, Reliability and durability.
4, 32-bit ARM high-end microcontroller control, fast operation speed, high accuracy, using special filtering algorithm to ensure stable and accurate indication.
5. American ADI's 24-bit AD converter offers fast conversion speed and accurate force acquisition.
6. Improved torque wire lever structure, Sensor core motion trajectory is close to a straight line, ensuring test Linearity.
7, China's high-end LVDT Displacement Sensor, Linearity, Output signal sensitivity, impedance matching accuracy, to ensure the repeability accuracy.
8. Automatic stop function. After the test is completed, the labjack automatically stops and displays the tension value.
9. Automatic averaging function can automatically average multiple test results, reducing the workload of operators.
10. The lower computer is equipped with a digital LCD screen and keyboard, allowing for direct operation and two-way control with the computer. It can also work independently without the computer.
Principle
The instrument adopts the ring method to measure the surface or interfacial tension of the liquid film pulled up by the platinum ring. During the test, the microcomputer controls the data collection, the lower machine structure drives the movement of the lifting shaft, and the Sensor collects the force value data in real time. The software automatically corrects the ASTM D-971 formula, and plots the test Linear dispersion to analyze the change of liquid properties.
Applications
Latex surface tension measurement, oil-water interfacial tension measurement, detergent surface tension measurement
Standards
SY-T5370 "Determination of surface and interfacial tension", GBT 18396-2001 "Determination of surface tension by natural Latex ring method", GBT6541-86 "Determination of oil-water interfacial tension in petroleum products (ring method) ", QB-T 1323-91 "Determination of detergent surface tension"
Steps
1. Use standard weight or standard medium to calibrate.
2. Set test parameters, such as the automatic stop function.
3. Place the sample and start the one-click test function.
4. The instrument runs automatically, and the tension value is displayed after the test is completed.
5. Software automatically records data, draws Linear dispersion and generates reports.
Notice
• Standard weight or standard medium should be selected when calibrating to ensure test accuracy.
• When the platinum ring is used for a long time or contaminated, it needs to be corrected with reference materials to resume normal testing.
• Avoid external vibration interference during the test to ensure Test accuracy.
• Power supply voltage is 220V/50Hz to ensure safe use.
• Regularly check instrument structural stability and Sensor performance to maintain Repeatability.
