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Tensiometers of the DCAT series

The dynamic contact angle measuring devices and tensiometer of the DCAT series are universal measuring devices, that allow to investigate numerous surface and interfacial properties. Due to the compact and modular product design it is possible to find an individual and best suited combination of device model and accessories for any task.

Highest precision and reproducibility of the measuring results is guaranteed by well-established measuring techniques and weighing technology. Due to state of the art electronic components all DCAT models offer an especially fast and precise actuator, an automatic crash protection and can be operated intuitively via the TP 50 control panel.

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Application video: Basic tensiometry using a Du Noüy ring

Application video: Basic tensiometry using a Du Noüy ring

DCAT 8 & DCAT 9

The DCAT 8 and DCAT 9 are the powerful entry level models for the weight-based measurement of surface and interfacial tension and the density of liquids and solids. In order to measure temperature dependent properties the DCAT 8T and DCAT 9T feature an integrated digital thermometer and a liquid temperature control unit TV 70.

Main features

  • electrodynamic compensation weighing system with automatic and manual calibration function
  • software controlled, motor-driven height positioning of the sample receptacles with variable speed
  • automatic coupling lock for the balance
  • automatic crash protection for measuring probes during measurement
  • illuminated sample chamber
  • integrated magnetic stirrer
  • digital thermometer with connections for two Pt 100 temperature sensors (DCAT 8T/9T)
  • liquid temperature control unit TV 70 with Pt 100 probe (DCAT 8T/9T)

Software

The DCATSoftware is available in various independently usable modules. The available software modules for the DCAT 8/9 are:

Learn more about the DCATS modules.

Accessories

Due to the modular product design the DCAT 8/9 can be combined with a multitude of options of the versatile DCAT accessories range. Learn more about the available accessories.

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Determination of the surface tension using a DCAT 9 with Wilhelmy plate PT 11

Determination of the surface tension using a DCAT 9 with Wilhelmy plate PT 11

DCAT 9T with liquid temperature control unit TV 70

DCAT 9T with liquid temperature control unit TV 70

DCAT 15

The DCAT 15 enables additional measuring methods and hence can be used to determine dynamic contact angles, the surface energy of solids or sedimentation and penetration properties. In addition the DCAT 15 can be extended with a liquid dosing unit LDU 25 and can thus create sequential concentration series of, for example, surfactant solutions. Without manual user intervention the critical micelle concentration (CMC) can be determined software controlled in a series of experiments.

Main features

  • electrodynamic compensation weighing system with automatic and manual calibration function
  • software controlled, motor-driven height positioning of the sample receptacles with variable speed
  • automatic coupling lock for the balance
  • automatic crash protection for measuring probes during measurement
  • illuminated sample chamber
  • integrated magnetic stirrer
  • digital thermometer with connections for two Pt 100 temperature sensors
  • compatible with the liquid dosing unit LDU 25

Software

The DCATSoftware is available in various independently usable modules. The available software modules for the DCAT 15 are:

Learn more about the DCATS modules.

Accessories

Due to the modular product design the DCAT 15 can be combined with a multitude of options of the versatile DCAT accessories range. Learn more about the available accessories.

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DCAT 15 with LDU 25

DCAT 15 with LDU 25

LDU 25 with SH-LDU and RRS 25

LDU 25 with SH-LDU and RRS 25

DCAT 25

The dynamic contact angle measuring device and tensiometer DCAT 25 is the multifunctional all-round instrument of the DCAT series. The weighing system is even more precise than that of the DCAT 9 and 15 and hence offers highest accuracy for the determination of surface and interfacial tension. A completely closed sample chamber enables measurements under inert gas or ionised atmosphere as well as with controlled relative humidity.

Due to the longer travel distance of the sample stage, an electrical temperature control unit can be mounted inside the DCAT 25 which makes measurements at temperatures of up to 300 °C possible. Moreover the Langmuir trough module can be used to investigate the surface pressure and the interfacial rheology of monolayers. The upgrade video system provides the opportunity to record video-sequences during force of adhesion measurements and to evaluate contact angle, contact area etc. in addition to the force. The optional TP 50 control panel with touch screen and precision control wheel ensures an intuitive and fast device control even during complex measurements.

Main features

Software

The DCATSoftware is available in various independently usable modules. The available software modules for the DCAT 25 are:

Learn more about the DCATS modules.

Accessories

Due to the modular product design the DCAT 25 can be combined with a multitude of options of the versatile DCAT accessories range. Learn more about the available accessories.

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DCAT 25 with electrical temperature control unit TEC 250/DCAT, temperature controller and TP 50 control panel

DCAT 25 with electrical temperature control unit TEC 250/DCAT, temperature controller and TP 50 control panel

Upgrade video system UpVideo DCAT

Upgrade video system UpVideo DCAT

DCAT 25SF

The DCAT 25SF incorporates a weighing system of highest accuracy with a resolution of 0.1 μg which allows to measure even on single fibres. As an ideal single fibre tensiometer the DCAT 25SF is not limited to this very special purpose due to the modular design of the product line.

Main features

  • electrodynamic compensation weighing system of highest resolution with automatic and manual calibration function
  • software controlled, motor-driven height positioning of the sample receptacles with variable speed
  • automatic coupling lock for the balance
  • automatic crash protection for measuring probes during measurement
  • closed illuminated sample chamber
  • digital thermometer with connections for two Pt 100 temperature sensors
  • includes a TP 50 control panel with touch screen and precision control wheel
  • compatible with the liquid dosing unit LDU 25
  • compatible with the Langmuir trough module LTMr

Software

The DCATSoftware is available in various independently usable modules. The available software modules for the DCAT 25SF are:

Learn more about the DCATS modules.

Accessories

Due to the modular product design the DCAT 25SF can be combined with a multitude of options of the versatile DCAT accessories range. Learn more about the available accessories.

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Measurement at a fibre with the DCAT 25SF

Measurement at a fibre with the DCAT 25SF