Product introduction
The Oil Interfacial Tension Test Equipment is a highly integrated precision laboratory instrument, mainly used for automatically measuring the surface tension of liquids and the interfacial tension between different liquids (or between liquids and solids). Widely used in industries such as electricity, petroleum, chemical, pharmaceutical, food, and education.
The Oil Interfacial Tension Test Equipment features automatic measurement, calculation, and result display, reducing manual operation and improving testing efficiency. A color touchscreen provides a clear and intuitive operating experience, while automatic data storage, data query, printing, and USB data export make test results easy to manage and record. With a compact structure and simple maintenance requirements, the tester is widely applicable to power utilities, transformer manufacturers, petroleum and petrochemical companies, chemical laboratories, research institutions, and other industries requiring surface and interfacial tension analysis.
Key Parameters
| Measuring range | 2~200 millinewtons/m |
| Sensitivity | 0.1 millinewtons/meter |
| Accuracy | 0.1 millinewtons/meter |
| Resolution | 0.01 millinewtons/m |
| Repeatability | 0.3% |
| Applicable temperature | 10~30℃(typical value:25℃) |
| Applicable humidity | (20~75)%RH |
| Power supply | AC 220V±5% 50Hz |
| Power | 20VA |
| Dimensions | 185×260×360(mm) |
| Weight | 15kg |
Product Characteristics
1,The Oil Interfacial Tension Test Equipment manufacturer adopts a color touch screen display and a non-marked button with full Chinese character menu prompts.
2,It has a high degree of automation, reliable work, good repeatability, and extremely simple operation.
3,All tests can be completed by simply pressing the menu prompts after turning on the machine.
Product Function
Surface and Interfacial Tension Measurement: It measures the surface tension of various liquids (liquid-gas interface) and the interfacial tension between mineral oil and water (liquid-liquid interface), in accordance with the GB6541-86 standard (ring method).
High-Precision Measurement: The measuring range is 2 to 200 mN/m, with a sensitivity of 0.1 mN/m, accuracy of 0.1 mN/m, resolution of 0.01 mN/m, and repeatability of 0.3% .
Fully Automatic Operation: After power-on, all tests can be completed by simply following the on-screen menu prompts. The Oil Interfacial Tension Test Equipment features a high degree of automation, reliable operation, and extremely simple operation.
Color Touchscreen Interface: It adopts a color touchscreen display with non-marked buttons and full Chinese character menu prompts, providing clear, step-by-step guidance without the need to memorize procedures.
Dynamic Measurement Capability: The Oil Interfacial Tension Test Equipment supplier supports dynamic surface tension measurement, capturing changes over time, which is useful for studying aging behavior, surfactant kinetics, and emulsification processes.
Temperature Control Integration: It includes integrated temperature measurement and control to ensure tests are conducted at controlled temperatures for accurate and reproducible results.
Safety and Maintenance
1. Personal protection: Wear appropriate personal protective equipment (such as lab coats, gloves, goggles) based on the nature of the tested sample (such as corrosiveness, toxicity, high temperature samples).
2. High temperature samples: If measuring high temperature samples (above room temperature), be extra careful during operation to avoid burns. Ensure that the sample cup and constant temperature system can withstand this temperature. The risk of sample volatilization or decomposition increases at high temperatures.
3. Organic solvents/corrosive liquids:
Ensure that instrument components (such as sealing rings, probe holders) can withstand the solvents or corrosive liquids used.
Operate volatile or toxic samples in a fume hood.
Timely and thoroughly clean the parts that have come into contact with such liquids.
4. Cleaning:
Clean immediately after measurement! Prevent sample residue from drying up on the probe or sample cup, making it difficult to remove.
Use appropriate cleaning agents (water, ethanol, acetone, etc., pay attention to compatibility), and if necessary, use ultrasonic cleaning.
Thoroughly rinse (with pure water/deionized water) and dry.
After cleaning the platinum plate/ring, it is recommended to burn it (in an alcohol lamp flame until it turns red hot for a few seconds).
5. Probe protection: The platinum plate/ring is very soft and easily deformed. Always handle with care and only use tweezers for operation. When stored, place it in a dedicated bracket or box to avoid collision or compression.
6. Regular calibration and maintenance:
Regular calibration: According to the manufacturer's recommended cycle (such as once a year or based on usage frequency), use standard liquids with known and accurate surface tension (such as ultrapure water, ethanol) to perform comprehensive calibration of the instrument to verify and calibrate its accuracy. This is different from daily zero calibration.
Functional inspection: Regularly (such as weekly or monthly) measure its surface tension with standard solution (usually ultrapure water), and check whether the results are within the expected range (about 72.8 mN/m at 20 ° C), as a daily monitoring of the instrument status.
Professional maintenance: Follow the instructions for daily maintenance (such as lubrication and cleaning of the guide rail). If there are any problems that cannot be solved, contact the manufacturer or professional maintenance personnel.
7. Shutdown: When not in use for a long time, turn off according to the instructions. Clean and dry all components, especially the measuring unit. Cover with a dust cover.
FAQ
1. What is a Surface Tension Tester used for?
It is used to measure the surface tension of liquids or the interfacial tension between two liquids. Surface tension is a basic parameter that determines solubility, wettability, foamability, and coatability. Common applications include testing transformer oil aging, cleaning agents, cosmetics, inks, paints, and surfactants.
2. How do I maintain the instrument and clean the probes?
After each measurement, clean the probe externally with water using a spray bottle (do not immerse the capillary completely). For force tensiometers, the platinum probe should be rinsed with an appropriate solvent and flamed to ensure good wetting. The sample vessel must be cleaned with solvent and rinsed with deionized water.
3. Can I test small sample volumes with a surface tension tester?
Force tensiometers typically require milliliter-range sample volumes. For limited samples (as little as 10 µl), the pendant drop method using an optical tensiometer is recommended. Some instruments also offer platinum rod probes for small-volume measurements with force tensiometers.
Wuhan UHV Power Technology Co., Ltd. has been deeply engaged in the field of high-voltage power testing equipment for over ten years.
As a direct-sale manufacturer with our own factory, we combine large-scale production capacity with a strict quality control system, ensuring stable and reliable product performance while offering you more competitive factory-direct prices.
Our core products cover a wide range of high-voltage testing equipment to meet diverse testing requirements. In addition, we can provide professional technical support and flexible customized solutions according to different project specifications.
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