DTCh eAT15
dynamic contac t angle measuring

instrument and tensiometerholders for fibre bundles FH 11
and powders PUR 11

film holder FO 11 andplate holder PSH 11

Wilhelmy plates PT 11/9 andcylindrical plate PT 10

penetration probe PP 11 andsedimentation cone SC 11

density determination setfor solids DSS 11/12

Software for efficient work
The newly developed, Windows® based,
DCATSoftware is available in various
discretely usable modules, and is operable
traditionally, using mouse and keyboard,or on multi- touch notebooks/pads by finger/pen. The available software modulesfor the DCAT 15 are:Density determination of liquids with thedensity determination set DIS 11

The dynamic contact angle measuring
instrument and tensiometer DCAT 15 is
the standard instrument for the weightbased measurement of contact angle,
surface and interfacial tension, critical
micelle formation concentration, density,sedimentation and penetration.

DCATS 31 — surface/interfacial tension• determination of the surface and interfacial tension according to the Du Noüyring and the Wilhelmy plate method
DCATS 32 — dynamic contact angle• determination of the dynamic contact
angle of solids (e.g. plates, films, rodsand fibres)• adsorption measurement on powders
and fibre bundles• analysis of the surface free energy ofsolids as well as its components according to nine different theories

DCATS 34 — liquid density• determination of the density of liquids
DCATS 35 — sedimentation/penetration• determination of the sedimentation
rate, yield forces, the penetration resistance and rate
DCATS 36 — solid density• determination of the density of solids

DCATS 33 — CMC• automated determination of the critical
micelle formation concentration (CMC)of surfactants, using the dosing unit LDU
x/x for additive and subtractive dosing

Determination of the contact angle hysteresis with a DCAT 15 with Wilhelmy plate PT 11

LDU 2/2 dosing system for the automated
CMC determination

Main features of the DCAT 15• high-precision electrodynamic compensation weighing system with automaticand manual calibration• 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

sample vessels GS 70/50 andcover plates CP 50/70

density determination set DIS 11
and Du Noüy rings RG 11/10

DCATS 33 — determination of the critical micelle formation concentration

Te c h n i c a l d a t a
Measuring range for surface and interfacial tensions:• 1 … 1000 mN/m; ± 0.01 mN/m resolution

Measuring range for contact angles:• 0 … 180°; ± 0.01° resolution

Measuring range for densities:• 0.50 … 2.50 g/cm3; ± 0.002 g/cm3 resolution

Weighing range:• 100 µg… 220 g

Measuring value range:• up to 50 weighing values per second

Traversing range and speed for sample table:• 80 mm• 46 nm/s … 12 mm/s

Travel resolution:• 24 nm

Balance calibration:• automatic internal and manual external with reference weights

Automatic stirrer:• integrated, software controlled

Temperature measurement and range:• -10 … 130 °C (liquid temperature control unit TV xx)• 2 x Pt 100 inputs for ‑60 … +450 °C (Pt 100 as option); ± 0.01 K resolution;
precision 1/3 DIN IEC 751 (±0.03%), Class B

Dimensions (L x W x H):• 250 x 205 x 500 mm3Weight:• 15 kgPower supply:• 100 … 240 VAC; 50 … 60 Hz; 70 WStandards• ISO 6295 Petroleum products -- Mineral oils -- Determination of interfacial tension of oil against water -- Ring method• ISO 6889 Surface active agents; Determination of interfacial tension by drawing up liquid films• ASTM D971 Standard Test Method for Interfacial Tension of Oil Against Water by the Ring Method• ASTM D1417 Standard Test Methods for Rubber Latices-Synthetic• DIN EN 14210 Surface active agents - Determination of interfacial tension of solutions of surface active agents by the stirrup or ring method• ASTM D1331 Standard Test Methods for Surface and Interfacial Tension of Solutions of Paints, Solvents, Solutions of Surface-Active Agents, and Related Materials• ISO 304 Surface active agents; Determination of surface tension by drawing up liquid films• DIN ISO 1409 Plastics/rubber - Polymer dispersions and rubber latices (natural and synthetic) - Determination of surface tension by the ring method• OECD 115 OECD Guidelines for the Testing of Chemicals: Surface Tension of Aqueous Solutions

A c c e s s o r i e s (excerpt)
set of reference weights RWS • set of reference weights , DKD certified RWS-C • liquid temperature control unit for sample vessels withdiameters of 50 mm (TV 50) and 70 mm (TV 70) with integrated Pt100 probe • automatic dosing and refill system LDU xx • sample vessels made of glass GS xx and PTFE GS xxP as well as cover plates CP xx • Du Noüy rings RG 11/10 • Aligning tool R-AT • Wilhelmy plates
PT 11/9 • cylindrical plate PT 10 • density determination set for liquids DIS 11 • density determination set for solids DSS 11/12 • sedimentation cone SC 11 • penetration probe PP 11 • kit for measurement of powder samples PUR 11 • holder for powders, pigments, fibres andfibre bundles FH 11 • plate holder PSH 11 • film holder FO 11 • filter papers for PUR 11 FP 11 and FH 11 FP 12F o r m o r e i n f o r m a ti o n ab o u t a t ai l o r- m a d e s o lu ti o n
to yo u r su r f a c e c h e m i s tr y r e q u i r e m e n t s ,please contact us.
We w ill b e p l e a s e d to p r o v i d e a q u o t a ti o n ,o b l i ga ti o n f r e e , f o r yo u r i n s tr u m e n t s y s te m .
DataPhysics Instruments GmbH • Raiffeisenstraße 34 • 70794 Filderstadt, Germany
phone +49 (0)711 770556-0 • fax +49 (0)711 770556-99
sales@dataphysics.de • www.dataphysics.de

Yo u r s al e s p ar tn e r:

Technical information in this document is subject to change without prior notice. Errors and omissions excepted.
© Copyright by DataPhysics Instruments GmbH, Filderstadt.
is a registered trademark of DataPhysics Instruments GmbH DS/DCAT 15-1604 – 1.0/En
Photos by Norbert Heil, Thomas Müller, Bavaria, Tony Stone, Dreamstime, DataPhysics archives. Artwork and layout: Daniel Maier

The high degree of accuracy of the DCAT devices complies with all related international standards, for example: