Economic Contact Angle Meter: DMe-211Plus
Economical, Fully Featured Contact Angle & Surface Free Energy Analysis System
The DMe-211Plus Contact Angle Meter is an economical yet highly capable laboratory instrument designed for precise contact angle measurement, surface free energy analysis, and surface/interfacial tension measurement. Combining manual droplet control with computer-controlled image analysis, the DMe-211Plus delivers reliable, reproducible results for both research and routine laboratory use.
Equipped with powerful FAMAS analysis software, the DMe-211Plus supports static and time-dependent contact angle measurements, as well as pendant drop surface and interfacial tension analysis, making it a versatile solution for materials science, coatings, electronics, pharmaceuticals, and academic laboratories.
Key Features:
Automatic Droplet Recognition & Image Analysis
• Eliminates subjective manual interpretation
• Ensures consistent, operator-independent results
This feature significantly improves repeatability and confidence in measured data.
Multiple Contact Angle Analysis Methods
• θ/2 (height–width method)
• Tangent method
• Curve fitting (ellipse and circle)
This flexibility allows users to select the most appropriate model depending on droplet shape, surface roughness, or wettability range.
Time-Dependent Contact Angle Measurement
• Enables evaluation of wetting dynamics, absorption, spreading, and surface treatment effects
• Ideal for coatings, porous materials, polymers, and treated surfaces
High-Precision Manual Droplet Control
o µL dispensing resolution
• Fast syringe exchange for efficient workflow
Manual droplet control offers excellent flexibility when working with liquids of different viscosities or surface tensions.
Fine Z-Axis Stage Adjustment for Gentle Droplet Deposition
• Gentle droplet placement prevents droplet distortion
• Essential for accurate contact angle measurement on sensitive surfaces
• Pendant Drop Surface & Interfacial Tension Measurement
• Measures surface tension and interfacial tension using the pendant drop method
• Young–Laplace and ds/de analysis supported
• Measurement range up to 2000 mN/m
This dual functionality allows users to characterize both solid–liquid and liquid–liquid interfaces with one instrument.
Surface Free Energy Analysis Included as Standard
• Supported models include: Owens–Wendt, Kaelble-Uy, Kitazaki-Hata, Wu, Acid-base, Zisman plot
This enables in-depth surface characterization without additional software modules.