DCAT – Dynamic Contact Angle measuring devices and Tensiometer

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 (see introduction to tensiometry). 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..

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.

DCAT 9 & DCAT 9T

The DCAT 9 is the powerful entry level model 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 9T features 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 9T)
liquid temperature control unit TV 70 with Pt 100 probe (DCAT 9T)

Software
The DCATSoftware is available in various independently usable modules. The available software modules for the DCAT 9 & DCAT 9T are:

DCATS 31 — surface and interfacial tension
DCATS 34 — liquid density
DCATS 36 — solid density
Learn more about the DCATS modules.

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

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:

DCATS 31 — surface and interfacial tension
DCATS 32 — dynamic contact angle
DCATS 33 — critical micelle concentration (CMC)
DCATS 34 — liquid density
DCATS 35 — sedimentation and penetration
DCATS 36 — solid density
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.

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 250 °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. For an intuitive and fast device control even during complex measurements, a TP 50 control panel is included in the delivery of every DCAT 25.

Main features
high resolution 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
closed illuminated sample chamber
integrated magnetic stirrer
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 electrical temperature control unit TEC 250/DCAT
compatible with the upgrade video system UpVideo DCAT
compatible with the Langmuir trough module LTM
Software
The DCATSoftware is available in various independently usable modules. The available software modules for the DCAT 25 are:

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.

DCAT 25 with electrical temperature control unit TEC 250/DCAT
DCAT 25 with electrical temperature control unit TEC 250/DCAT

Application video: Water Adhesion on Plant Leaves
Application video: Water Adhesion on Plant Leaves

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

DCATS 31 — surface and interfacial tension
DCATS 32 — dynamic contact angle
DCATS 33 — critical micelle concentration (CMC)
DCATS 34 — liquid density
DCATS 38 — surface pressure
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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