The system is a temperature-resistant and pressure-resistant container, suitable for high-precision surface tension research of low-viscosity fluids within the range of -30~100 ℃.

The ST5100 surface tensiometer is a fluid surface tension testing device developed by XIATECH based on the dual-capillary rise method. It can perform measurements under different temperatures (-30~100℃) and different pressures (5MPa). By adopting the relative measurement method (dual capillaries) and combining with a high-precision automatic camera system and automatic test analysis software, accurate data on the height difference of the capillary liquid column can be obtained, which effectively ensures the measurement accuracy of surface tension. Meanwhile, the system is a temperature-resistant and pressure-resistant container, suitable for high-precision surface tension research of the tested fluid within the range of -30~100℃. The device is modularized, and the core device can be taken out at any time, which facilitates sample replacement during the temperature control process, greatly shortens the temperature control time, improves the testing efficiency, and is convenient for users to operate.

Key Features

l  Dual-capillary method: The adoption of the relative measurement method combined with an automatic camera system greatly reduces the artificial reading error of the liquid column height in a single capillary, and the reading uncertainty of the liquid surface height is better than 0.02 mm;

l Accurate calibration of capillary inner diameter: Calibration is performed using the mercury line method, and the uncertainty of the capillary inner diameter is better than 0.005 mm;

l Suitable for high-pressure measurement: The sample container is a sealed high-pressure container, which can realize high-precision surface tension measurement of fluids with pressure within 5MPa under different temperatures;

l High-precision temperature control: The temperature fluctuation is less than ±0.05℃;

l Modular device: The core device can be taken out at any time, facilitating sample replacement during the temperature control process and greatly shortening the temperature control time;

l High-definition camera system: A built-in high-definition camera system allows users to monitor the state of the sample in the sample chamber and the liquid surface height in the capillary in real-time through software, and take photos to record the liquid surface height at the same time.