Sigma 702ET

Force Tensiometer

Transformer Oil Analyzer specifically designed for measurements of interfacial tension of transformer oil according to relevant standards. 


  • Instant Results  shown on the screen immediately after measurement is completed

  • High precision Comes with the super sensitive balance

  • Automation Let the instrument to do the work for you



The Sigma 702ET boasts an open design and user-friendly keyboard controls, ensuring utmost ease of use. Results are conveniently displayed on a large integrated digital screen. Equipped with data collection software, it offers the flexibility to connect to an external computer for additional data storage and straightforward reporting.

Tailored specifically for oil-water interfacial tension (IFT) measurements, Sigma 702ET excels in determining IFT of transformer oils and hydrocarbon fuels, adhering to standards such as IEC 62961, ASTM D971, and IEC 60422. The instrument is accompanied by software specifically designed for oil-water measurements. Additionally, it can be connected to an external PC for enhanced data storage and simplified reporting. The instrument includes data collection software as part of its package.

Primarily utilized in the energy industry, Sigma 702ET plays a crucial role in assessing the interfacial tension between transformer oils and water, ensuring compliance with industry standards and facilitating efficient quality control processes.

The Sigma 702ET force tensiometers feature a large integrated digital screen for displaying results, coupled with an open design and user-friendly keyboard controls, making them exceptionally easy to operate.

Sigma 702ET offers precise temperature control through an integrated water-jacket vessel holder, which is mounted on a motorized sample stage. On the other hand, Sigma 702ET is equipped with a motorized sample stage but lacks the water jacket vessel holder. It is specifically tailored for oil-water interfacial tension measurements, compliant with ASTM and IEC standards.

Biolin Scientific is a global company dedicated to producing cutting-edge instruments and intelligent solutions tailored for scientists. Our commitment to knowledge drives every aspect of our operations. Through partnerships with prominent universities and industries, we tackle challenges to streamline laboratory routines. Our clientele comprises surface science experts, and we offer them the necessary tools to advance their research.

The Biolin Scientific product lineup includes the renowned brands Attension®, KSV NIMA, and QSense.