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  4. Contact Angle Meter
  5. DMe-211

DMe-211

DMe-211

DMe-211: for simple measurements of contact angles in quality control

DMe-211

DMe-211: sample stage with manual z-axis

DMe-211

DMe-211: precise manual dispenser

DMe-211
DMe-211
DMe-211
  • Automatic recognition of droplet deposition
  • Live image display and droplet volume monitoring
  • Movie converter
  • Manual dispenser with a set of 5 glass syringes and 5 SUS needles for precise adjustment of droplet volume and quick refilling and replacement of liquid samples
  • Fine adjustable stage in z-axis for gentle deposition of droplets without distortion
  • Adjustable level of the body and stage
  • Droplet calibration standard for standard view, bearing one full circle for calibration and three droplet silhouettes of 5°, 60° and 108° for periodic inspection of measurement accuracy

Hardware

  • Pendant drop kit for standard view, incl. pendant drop calibration standard
  • Surface free energy kit
  • Determination of wettability of surfaces like glass, metal, plastics, ceramics at ambient temperature
  • Surface cleanliness
  • Determination of surface and interfacial tension using the pendant drop kit (standard view)
  • Analysis of surface free energy of solids
  DMe-211
Camera system USB 2.0 CMOS camera: 30fps at 640x480 pixels
Optical system

focus: manual focus with fixed zoom
field of view: 6.3x4.7mm
Measuring methods

contact angle: sessile drop (static and dynamic)
surface/interfacial tension: pendant drop (static and dynamic)
Analysis methods



contact angle: θ/2, tangent, circle fitting, ellipse fitting
surface/interfacial tension: Young-Laplace method, ds/de method
surface free energy: Owens-Wendt, Kaelble-Uy, Kitazaki-Hata, Wu, acid-base, Zisman
Measuring range

contact angle: 0.1 to 180°
surface/interfacial tension: 0.1 to 100mN/m
Resolution

contact angle: 0.1°
surface/interfacial tension: 0.1mN/m
Accuracy1)

contact angle: 0.3°
surface/interfacial tension: 0.3mN/m
Maximum sample surface area and height (WxDxH) 160x100x10mm
Maximum sample weight 300g
Sample stage operation:
X-axis
Y-axis
Z-axis

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10mm, manually by a rotary knob
Dispenser operation:
Z-axis
Droplet generation
Dispensing resolution

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manually, by a rotary knob
0.1μl
Droplet deposition manually, by stage operation
Dimensions (WxDxH) 170x346x283mm
Weight ca. 1.8kg
Electric power

USB bus power
DC5V, max. 500mA
Operating environment

temperature: +10 to +35°C, humidity: 30-80%RH (non-condensing)
positioned away from sources of electrical noise and vibration

1) Accuracy is the repeatability in terms of standard deviation based on the manufacturer’s calibration standard

  • Specification sheet
  • Catalog

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