Online Laboratory Magazine

Tensiio - modular universal tensiometer for liquid and solid surfaces


modular universal tensiometerIn addition to many technical innovations and intuitive operation with an integrated touch display, KRÜSS places particular emphasis with Tensiio on individualized equipment options for the respective needs of the user. For example, a force sensor with very high resolution is available, which is suitable for tasks such as measuring low interfacial tensions or the wetting of single fibers.

For standard tensiometry tasks, such as the measurement of critical micelle concentration (CMC), the alternative force sensor in the medium resolution range is completely sufficient. Temperature control is possible via an external liquid thermostat, as with comparable instruments, but more flexible and space-saving are integrated temperature control solutions covering a range between -15 and 300 °C.

Other optional components expand the possibilities for analyses of solid surfaces. These include an ionizer that removes interfering static charges or a camera that is used, for example, to measure adhesion on hydrophobic surfaces.

The positioning system for the sample stage has the largest dynamic range to date in the segment of tensiometers based on force measurement. The particularly high maximum speed saves preparation time for each measurement.

On the other hand, extremely slow movements with excellent smoothness ensure precise results for analyses of highly viscous liquids or for contact angle measurements using the Wilhelmy method.

Another new feature is the electronic bubble level for instrument alignment, which provides feedback when the instrument is not level to ensure high accuracy. Also new is the multicolor illumination, which can, for example, indicate successful measurements with green light and results outside predefined values with red light.

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