SEO DCA-200 automatic analyser for dynamic contact angle (Wilhelmy), surface and interfacial tension and surface free energy.
Key features
- Dynamic contact angle
- Advancing and receding angles by the Wilhelmy force method.
- Tension
- Surface and interfacial tension by ring or plate.
- Surface free energy
- Owens/Wendt, Wu, Fowkes and Lewis acid–base; Zisman plots.
- Options
- CMC, density, Washburn powder contact angle, fibre measurement and a built-in temperature chamber.
Specifications
From Surface Electro Optics' product page.
| Measuring range | Surface tension 1–2,000 mN/m |
|---|---|
| Resolution | 0.01 mN/m |
| Balance | 0.1 mg resolution, 250 g capacity |
| Operation | Fully automatic, software-controlled |
| Liquid vessel | 100 ml |
| Power | 110–220 V AC, 50–60 Hz |
| Dimensions | 230 × 310 × 540 mm |
| Weight | 23 kg |
Resources
- Product guide Surface Tensiometers
- Article Critical Micelle Concentration Measurements
- Article Zisman Plots (Critical Surface Tension) and Surface Energy Measurements
- Article Sedimentation Measurements
- Article Penetration Measurements
- Article Density Measurements
- Article Adsorption (Wicking) and Powder Contact Angle Measurements
- Article Interfacial Tension Measurements
- Article Surface Tension Measurements
- Article Theory and methods of analyses in SEO instruments


