DMs-401
DMs-401: standard device with manual dispenser
DMs-401: on an external tilting stage for roll-off angle measurements
DMs-401: sample stage with manual xy-axes
DMs-401: measurements of advancing/receding angles
The DMs-401 is a compact yet high-performance surface measuring instrument for the measurement of static and dynamic contact angles, the surface free energy of solids, and surface and interfacial tension of liquids. Its functions can be easily extended due to its sophisticated modular design. Optional accessories, such as a computer-controlled dispenser, temperature control devices, and an external tilting stage system are available.
Features
- 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 5º, 60º, and 108º for periodic inspection of measurement accuracy
Options
Hardware
- Jacket- and heater-type chambers for temperature measurements from +10 to +380℃
- Heater-type dispenser for temperature measurements from ambient to +380℃
- Tilting stage for measurements of roll-off angles, incl. FAMAS software add-in [Sliding method]
- Add-on module [Dynamic sliding method] for measurement of roll-off speed and roll-off acceleration. Only in combination with the tilting stage package
- Fast image capturing system with standard 400 fps at 640x480 resolution USB3.0 CMOS camera, max. 2700fps at 640x64 resolution
- Single automatic dispenser
- Multi-manual dispenser holder
- Multi-automatic dispenser system
- Large capacity pump dispenser, incl. a 50ml liquid container
- Surface free energy kit
- Pendant drop kit (for standard & wide view)
- Kit for captive-bubble-measurements
- Droplet calibration standard (for wide 1 view)
- Pendant drop calibration standard (for standard view)
- Pendant drop calibration standard (for wide 1 and wide 2 view)
Applications
- 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 & wide view)
- Analysis of Surface free energy of solids
- Determination of dynamic contact angles (advancing/receding angles and roll-off angle)
- Coating property, repellency, characterization of droplet hysteresis
- Initial spreading, absorbing property, effect of surface active agents
- Adhesive property, characterizing surface modification, digitalization of hydrophilicity/hydrophobicity
Specifications
| DMs-401 | ||
| Camera system | USB2.0 CMOS camera: 60fps at 640x480 pixels | |
| Optical system |
focus: manual focus with 3-step zoom field of view: 5.3x4.0mm, 9.6x7.2mm, 13.6x10.2mm ±6% |
|
| 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 of solids: OWRK, Owens-Wendt, Kaelble-Uy, Kitazaki-Hata, Wu, acid-base, Zisman |
|
| Measuring range |
contact angle: 0 to 180° surface/interfacial tension: 0 to 2000mN/m |
|
| Resolution |
contact angle: 0.01° surface/interfacial tension: 0.01mN/m |
|
| Accuracy1) |
contact angle: 0.2° surface/interfacial tension: 0.2mN/m |
|
| Maximum sample surface area and height (WxDxH) | 150x100x35mm |
|
| Maximum sample weight | 300g | |
| Sample stage operation: Z-axis Droplet generation Dispensing resolution |
150mm, manually by a rotary knob --- 20mm, manually by a rotary knob (additional 20mm by stage shifting mechanism) |
|
| Dispenser operation: Z-axis Droplet generation Dispensing resolution |
--- manually, by a rotary knob 0.1μl |
|
| Droplet deposition | manually, by stage operation | |
| Dimensions (WxDxH) | 294x461x375mm | |
| Weight | ca. 6.5kg | |
| Electric power: Voltage Frequency Power consumption |
AC100-240V 50/60Hz 5.5W 15VA |
|
| Operating environment |
temperature: +10 to +35℃, 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
Details of FAMAS
