Contact Angle Meter - DMe-211

DMe-211-1

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

DMe-211-3

DMe-211: sample stage with manual z-axis

DMe-211-4

DMe-211: precise manual dispenser

  • DMe-211-1
  • DMe-211-3
  • DMe-211-4
The DMe-211 is an economical yet fully-featured contact angle meter with a computer image analysis system.
The unit combines manual droplet volume regulation, stage up/down motion for gentle deposition of droplets with "FAMAS-basic" software controlled analysis of static and dynamic contact angle (30fps) as well as surface and interfacial tension using the pendant drop method.
The analysis of surface free energy of solids is possible with the optionally available software add-in.
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product inquiries here  Where To Buy 

 

           

 
Features Options Applications Specifications Downloads
 
  • 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
 
Features Options Applications Specifications Downloads
 

Hardware

  • Pendant drop kit for standard view, incl. pendant drop calibration standard
  • Surface free energy kit

Software

  • FAMAS software add-in [surface free energy analysis]
 
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Features Options Applications Specifications Downloads
 
  • 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
 
Features Options Applications Specifications Downloads
 
DMe-211
Camera system

USB 2.0 CMOS camera:

30fps at 640x480 pixels
Optical system
focus:

field of view:

manual focus with fixed zoom

6.3x4.7mm

Measuring methods

contact angle:

surface/interfacial tension:

surface free energy of solids:

sessile drop (static and dynamic)
pendant drop (static)
sessile drop (static)
Analysis methods

contact angle:

surface/interfacial tension:

surface free energy of solids:

θ/2, tangent, circle fitting, ellipse fitting
Young-Laplace method, ds/de method
Owens-Wendt, Kaelble-Uy, Kitazaki-Hata, Wu, acid-base, Zisman
Measuring range

contact angle:

surface/interfacial tension:

0.1 to 180°

0.1 to 100mN/m

Resolution

contact angle: 

surface/interfacial tension:

0.1°
0.1mN/m
Accuracy 1)

contact angle:

surface/interfacial tension:

0.3°

0.3mN/m 

Maximum sample surface

area and height (WxDxH)

       

100x100x10mm

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

 
Features Options Applications Specifications Downloads
 
  • Specification sheet
  • Catalog


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