Ensuring quality with quality – the K11 from KRÜSS is the fully automatic stand-alone instrument with touchscreen operation for quality control measurements of the surface and interfacial tension.

• Fully automatic determination of the surface and interfacial tension
• High-resolution, robust measuring system
• Stand-alone instrument with large, high-resolution touchscreen
• Ergonomic, intuitive, menu-controlled user guidance
• Flexibly configurable measuring templates
• Presentation of results, raw data and measuring parameters with report function

• Quality control for measuring surface-active agent concentration
• Optimal for medium sample resourcing with high measuring precision
• Suitable for repetitive routine measuring of interfacial tension and surface tension

Quality assurance with quality

The Tensiometer K11 from KRÜSS is a stand-alone instrument for routine measurement of the surface and interfacial tension. Standardized automatic measuring sequences with a high sample throughput and gapless documentation in the measurement report – these services make the K11 the ideal partner for quality control. Predefinition and accurate control of the measuring sequences without user intervention mean that the instruments meet even high demands placed on the reproducibility of the results.

Intuitive and well-thought-out

With the large-format, high-resolution touch-panel automatic measurements with the ring, plate or rod method as well as lamella tear-off and density measurements are configured, started and saved. Measuring parameter templates for each method allow a measurement to be programmed in only a few seconds. Speeds, paths and detection sensitivities can be custom-made for the particular measuring task or adapted to comply with international standards.

The instrument is equipped with a highprecision force sensor that, apart from installation or servicing, does not have to be recalibrated. The force measurement works at a constant position, so that height values such as the surface or lamella height can be determined or set exactly. The sample table with builtin stirrer moves in a speed range from 0.1 to 500 mm/min. Optional accessories allow measurements to be made at temperatures between -10°C and 130°C.

The touch-panel stores the results and measuring parameters as well as raw data such as the time-dependent or path-dependent force values or the lamella height – and therefore incorporates the functions of a software data logger. Clearly-laid-out reports can be transferred to a USB-stick or printed out on a directly connected printer.

• Various thermostat jackets with built-in magnetic stirrer
• Temperature sensor for direct measurement of sample temperature
• Various rings and plates
• Thermostats for different applications
• Density determination set, consisting of special holder and immersion body

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