Products

Products

Product list

Surface interfacial tension meter for petroleum products

Application Environment of KDZL-807 Automatic Interface Tension Tester
1. Applicable industry scenarios
Power industry: used for detecting interfacial tension of liquid media such as transformer oil and insulation oil, evaluating the degree of oil aging and purity, and ensuring the safe operation of power equipment.
Petrochemical industry: detecting surface/interfacial tension of crude oil, lubricating oil, fuel oil, additives, etc., used for oil quality control and formula development.
Pharmaceutical and Bioengineering: Measuring the interfacial properties of drugs, solvents, emulsions, etc. for drug stability, solubility, and formulation process optimization.
Food industry: used for surface tension analysis of liquids such as dairy products, edible oils, beverages, etc., to assist in food composition and quality control.
Universities and research institutions: as the core equipment for teaching and research experiments in physical chemistry, materials science, colloid chemistry, and other fields.
2. Physical environment requirements
Temperature: 10 ° C to 30 ° C (recommended for use in a constant temperature environment of 25 ° C to ensure measurement accuracy)
Humidity: Relative humidity<85% RH (without condensation)
Power supply: AC 220V ± 20%, 50Hz ± 10%, requires stable power supply, it is recommended to use anti surge socket
Installation location: Indoor, well ventilated, no strong electromagnetic interference, no corrosive gases, and no severe vibrations on the experimental table
Space requirement: The device size is 200 × 300 × 330 mm, and there should be reserved space for operation and heat dissipation (recommended tabletop size ≥ 500 × 500 mm)
3. Operation and usage conditions
Operator: Must have basic knowledge of chemistry or instrument operation, and can get started with simple training
Sample requirements: The liquid sample should be clear, free of particle impurities, and avoid contaminating the platinum ring
Calibration and maintenance: Regularly use standard solution (such as pure water) for single point calibration to maintain sensor sensitivity
Data Management: Supports local storage (255 timestamp records) and optional RS232 interface connection to computers, suitable for scenarios requiring data traceability or laboratory information management
 

Petroleum product surface interfacial tension tester Oil synthesis Blood liquid ink Ink tension test

Application Environment

The Automatic Tension Meter is designed for precise measurement of surface tension (liquid-gas interface) and interfacial tension (liquid-liquid interface) across a wide range of industrial and laboratory environments. It is ideally suited for use in:

  • Power Industry – Testing insulating oils and transformer fluids to assess aging, contamination, and dielectric performance in accordance with GB/T 6541 and international standards.
  • Petroleum & Petrochemicals – Evaluating crude oil, refined products, surfactants, and emulsions for quality control, process optimization, and interfacial behavior analysis.
  • Chemical Manufacturing – Monitoring surfactant efficiency, formulation stability, and wetting properties of coatings, adhesives, and cleaning agents.
  • Pharmaceuticals – Supporting R&D and quality assurance in drug formulation, where surface tension influences solubility, absorption, and emulsion stability.
  • Food & Beverage Industry – Analyzing surface activity in emulsions, beverages, and food additives to ensure consistency and product performance.
  • Academic & Research Laboratories – Used in physical chemistry, material science, and colloid studies for fundamental research on intermolecular forces and fluid behavior.

The instrument operates reliably in controlled laboratory conditions with ambient temperatures between 10–30°C and humidity below 85% RH, ensuring stable and accurate measurements. Its compact size, integrated printer, and optional RS232 data output make it suitable for both benchtop testing and integration into data management systems.

Termination Oil Cable Testing Terminal

The applications covered include routine cable testing according to IEC, ANSI/IEEE, and other national standards

HYJL-Z100 Insulating Oil Dielectric Loss Tester

It is mainly used for measuring the dielectric loss factor and DC resistivity of liquid insulating media such as insulating oil.

KDZD insulation oil pressure tester

The instrument is controlled by a micro-chip computer, which can automatically complete a series of operations such as static discharge, pressure boost, stirring, calculating average value, displaying data, storing data, printing, and measuring the temperature and humidity at that time. Oil pressure cycle test can be carried out in the range of 0-80kV.

KDZL-807G Fully Automatic Interface Tension Tester

The KDZL-807G fully automatic interfacial tension tester measures the surface tension of various liquids (liquid gas phase interface) and the interfacial tension between mineral oil and water (liquid-liquid phase interface).

KDZL-807D Fully Automatic Surface Tension Tester

Can be used for measuring interfacial tension of products (surfaces) such as petroleum, chemical, power, pharmaceutical liquids, etc.

KDSZ-803G Fully Automatic Acid Value Tester

Detection of oleic acid values in transformers and turbines

KDSZ-803D Fully Automatic Oil Acid Value Tester

The KDSZ-803D fully automatic oil acid value analyzer adopts the principle of neutralization method. At room temperature, the microcomputer controls the automatic completion of liquid addition, stirring, titration, and endpoint judgment.

KDWS809G fully automatic micro moisture analyzer

The KDWS809G fully automatic trace moisture analyzer is an instrument that uses Karl Fischer coulometric titration to determine trace moisture in liquids, gases, and solids.

KDWS-809D Coulombic Trace Moisture Analyzer

The micro moisture analyzer adopts an automatic control circuit, a 32-bit embedded microprocessor as the main control core, and is embedded in a mini operating system. This makes the instrument more reliable and convenient to use. It has the characteristics of fast analysis speed, simple operation, high accuracy, and strong automation. Widely used in sectors such as petroleum, chemical, power, railway, pesticide, medicine, and environmental protection.

KDSR-303D Fully Automatic Water Soluble Acid Tester


The KDSR-303D fully automatic water-soluble acid tester can automatically complete functions such as heating, constant temperature, oscillation, sampling, testing, cleaning, printing, etc. according to the user's set conditions, and can measure 1-6 samples at once.

KDSR-303A Automatic Water Soluble Acid Tester

Determine the amount of water-soluble acids in oil products

KDJJC-G Insulation Oil Dielectric Strength Tester

The KDJJC-G insulation oil dielectric strength tester can automatically complete a series of operations such as static discharge, boosting, stirring, calculating the average value, displaying data, storing data, printing, and can also measure the temperature and humidity at that time. Oil withstand voltage cycling test can be conducted within the range of 0-100kV.
 

KDJJC-100kV Insulation Oil Voltage Withstand Tester

The KDJJC-100kV insulation oil withstand voltage tester is a highly accurate and digital industrial instrument developed through multiple on-site tests and long