D C AT
9The fully automated tensiometerdensity determination set DIS 11
and Du Noüy rings RG 11/10

Wilhelmy plates PT 11/9 andcylindrical plate PT 10

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

density determination setfor solids DSS 11/12

schematic of surface tension measurementwith a Du Noüy ring
DCAT 9, measurement of surface
tension with Du Noüy ring RG 11

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 modules
for the DCAT 9 models are:

The DCAT 9 is the powerful fully automated tensiometer for the weight-based
measurement of surface and interfacial
tension and the density of liquids andsolids.
The DCAT 9T features an additional digital
thermometer and a liquid temperature
control unit TV 70 instead of the standard
sample vessel holder SVH 50/70.

DCATS 31 — surface/interfacial tension• determination of the surface and interfacial tension according to the Du Noüyring and the Wilhelmy plate methodDCATS 34 — liquid density• determination of the density of liquids
DCATS 36 — solid density• determination of the density of solids

set of 3 reference weights RWS,holder, and tweezers

DCAT 9T with optional Wilhelmy-plate PT 11 and multi-touch Notebook with software

Main features of the DCAT 9• 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

density determination of liquids with density
determination set DIS 11• illuminated sample chamber• integrated magnetic stirrer• standard sample vessel holder
SVH 50/70 (DCAT 9)• liquid temperature control unit TV 70
with Pt 100 probe (DCAT 9T)• digital thermometer with connections
for two Pt 100 temperature sensors(DCAT 9T)

DCATS 31 — determination of the surface tension with the Du Noüy ring method

Measuring range for surface and interfacial tensions:• 1 … 1000 mN/m; ± 0.01 mN/m resolutionMeasuring 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 nmSample vessel holder:• SVH 50/70 (DCAT 9)• TV 70 (DCAT 9T)

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

Automatic stirrer:• integrated, software controlled

Temperature measurement and range:• -10 … 130 °C (DCAT 9T)• 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 (DCAT 9T)

Dimensions (L x W x H):• 250 x 205 x 500 mm3

Weight:• 14 kg (DCAT 9)• 15 kg (DCAT 9T)

Power supply:• 100 … 240 VAC; 50 … 60 Hz; 70 W

Standards
The high degree of accuracy of the DCAT devices complies with all related international standards, for example:• 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 • sample vessels made of glass GS xx and PTFE GS xxPas 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 and DSS 12

F 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 9-1604 – 1.3/En
Photos by Norbert Heil, Thomas Müller, Bavaria, Tony Stone, Dreamstime, DataPhysics archives. Artwork and layout: Daniel Maier;Te c h n i c a l d a t a