Laboratory Products

Premium Tensiometer Updated with New Software and Temperature Control Features

Dec 13 2017 Comments 0

Krüss GmbH is introducing an updated version of their successful Force Tensiometer, K100, with their new ADVANCE software, and has also developed two new temperature control units for this measuring instrument.

ADVANCE software displays the logical workflow of scientific measurements on an intuitive user interface. The broad scope of methods offered by the K100 include completely automated CMC measurement and processes for characterisation of the wettability of solids and powders right up to the determination of their surface free energy. In parallel with the software release, this measuring instrument also offers technical upgrades, such as a sensor that registers the closing of the sample chamber doors.

ADVANCE controls measurement sequences with the aid of ready-made automation programs, reducing manual steps to the absolute minimum. Measurements can therefore start immediately without any further adjustments. Procedures can also be intuitively modified or even newly created for completely different sequences without any programming knowledge.

The automation programs work hand in hand with the numerous software-controlled K100 components and sensors. For example, closing the measuring chamber can initiate the next sequence step of the measurement without the user needing to confirm continuation. The integrated stirrer can switch itself on and off during the procedure in order to homogenise the sample before measurement. During a critical micelle concentration (CMC) measurement, special Micro Dispensers are integrated in a fully automated procedure which includes creating a concentration series and evaluating the measurement curve.

An additional benefit in the K100 program innovation consists of two powerful temperature control units for different ranges. The Temperature Control Unit – TJ50 exploits the Peltier effect for tensiometric measurements between -15 and 130°C. The unit rapidly reaches the target temperature and keeps it stable due to excellent insulation. The temperature control housing of the unit also encompasses an electromagnetic stirrer, ensuring rapid homogenisation of the sample temperature. Moreover, the TJ50 includes a cooling unit for the Peltier element so that separate counter-cooling is not necessary.

The electrically heated temperature control unit TJ60 quickly and reliably reaches target temperatures of up to 300°C. It enables measurements of the surface tension of polymer melts or bitumen. The supplied disposable sample vessels made of the excellent heat conductor aluminium solve the problem of persistent contamination. Oxidation of the samples can also be avoided by connecting an inert gas.

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