Portable Contact Angle Meter - PCA-11


PCA-11: portable contact angle meter


PCA-11: "one-click" fully-automatic measurements


PCA-11: measurement of contact angle


PCA-11: measurement of surface tension


PCA-11: on a jig for contact angle measurements of cylinders

  • PCA-11-1
  • PCA-11-2
  • PCA-11-3
  • PCA-11-4
  • PCA-11-5

The portable contact angle meter PCA11 is a compact and lightweight device for fully automated on-site measurements of contact angle, surface tension and surface free energy of solids.

Testing on-site for quality control and evaluation of surface wettability, which is characterized by the contact angle, is often required during manufacturing processes or in the field. The PCA-11 can be used on any material such as glass, metal, film, paper & pulp, polymer, wood, etc. that have to be measured on-site or that due to their size or shape cannot be analyzed with usual stationary contact angle measuring instruments.
Weighing only 650g, combined with the single-click fully automated operation and its precise measurements, the PCA-11 is the ideal solution for non-destructive surface evaluations.

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Features Options Applications Specifications Downloads
  • Single-click fully automated operation 
  • Precise measurement of contact angles, even on slopes of up to 90 degrees 
  • Analysis of surface free energy 
  • Measurement of surface tension using the pendant drop method 
  • Time-dependent measurements by image capture of up to 30 fps 
  • 500 droplets with a volume of 1μl can be generated with one prepared syringe 
  • Simple replacement of syringe and liquid sample via easily accessible front door 
  • Visible needle tip allows precise capture of the target point
  • 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


  • Surface free energy kit
  • Pendant drop kit
  • Pendant drop calibration standard (for standard view)
  • Light shielding plate
Features Options Applications Specifications Downloads
  • Evaluation of cleanliness of large panels and silicon wafer
  • Evaluation of surface modification techniques, such as corona, flame and plasma treatments 
  • Non-destructive evaluation of hydrophobic and hydrophilic surfaces such as automobiles parts, windshields, building walls
Features Options Applications Specifications Downloads
Camera system

USB 2.0 CMOS camera: 

30fps at 640x480 pixels
Optical system


field of view:

fixed focus with fixed focal length
6.3x4.7mm ±5%
Measuring methods

contact angle:

surface tension: 

surface free energy of solids:

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

contact angle: 

surface tension: 

surface free energy of solids: 

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

contact angle:

surface/interfacial tension:

0.01 to 180°
0.01 to 100mN/m

contact angle:

surface/interfacial tension:

Accuracy 1)

contact angle:

surface/interfacial tension:


Maximum sample surface

area and height (WxDxH)


no limitations

Dispenser operation:
Droplet deposition
Droplet generation

Droplet resolution



Dimensions (WxDxH):


Approximately weight:


Electric power:

USB bus power

DC5V, max. 2W

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