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Sigma 700 / 701

Sigma 700 and 701 are state-of-the-art tensiometers, providing highly accurate measurements of static surface and interfacial tension, dynamic contact angles and fully automatic CMC determination. 

Sigma 700 and 701 outstanding versatility makes them suitable for research and development, industrial quality control, routine measurements and even educational use. Full computer control and high level of automation make it possible to carry out long measurements without operator intervention during the test, saving time and freeing the user to concentrate on other tasks. Special attention has been paid to the ergonomic and user-friendly design.



Sigma 702 / 702ET

The Sigma 702 and Sigma 702ET are standalone tensiometers offering high resolution and precision for surface and interfacial tension measurements, as well as non-automatic CMC determination. 

Results are displayed on a large integrated digital screen. Precise temperature control can be ensured by the integrated water-jacketed vessel holder. Open design and convenient control keyboard operations make Sigma 702 and 702ET extremely easy to use instruments. Sigma 702ET is specifically designed for oil-water interfacial tension measurements in line with ASTM and IEC standards. A software designed for oil-water measurements is provided with the Sigma 702ET. Sigma 702ET can also be connected to an external PC for additional data storage and simple reporting. The data collection software is provided with the instrument.



Sigma 703D 

Sigma 703D is a simple standalone and robust digital tensiometer for accurate measurement of surface and interfacial tension of liquids by DuNouy ring or Wilhelmy plate method. 

Non-automatic CMC measurements can also be conducted. Measurements are displayed in real-time on the large digital screen integrated to the instrument and can be transferred to a computer using the data collection software. When quick and reliable stand-alone operation and manual control are valued, Sigma 703D is the best solution. The major difference between the Sigma 703D and Sigma 702 models is the manual sample stage of Sigma 703D.