Attension Sigma 703D
The Attension Sigma 703D is a manual standalone force tensiometer used to measure the static surface tension and interfacial tension of liquids.





Attension Sigma 703D
The Attension Sigma 703D is a manual standalone force tensiometer used to measure the static surface tension and interfacial tension of liquids.
Manufacturer | Attension |
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Product Series | Sigma Force Tensiometer |
Measurement principle | Force tensiometry |
Application | Surface Tension - Contact Angle |
Sample type | Chemicals, pharmaceuticals, surfactants, energy, foods, biomaterials, oil & gas |
Measurements | Surface/ interfacial tension, Critical Micelle Concentration, Dynamic contact angle, surface free energy, powder wettability, density, sedimentation |
Product Overview
The Attension Sigma 703D force tensiometer is a popular choice for educational purposes. The integrated keyboard and screen make it easy to use without requiring an external computer. The sample stage is manually operated. It measures surface and interfacial tension of liquids by Du Noüy ring or Wilhelmy plate methods. A vessel containing the liquid sample is raised until the ring or plate touches the surface of the liquid. The liquid is drawn up in a meniscus on the solid surface and creates a force due to surface tension. The force is measured by the microbalance and from this the surface and interfacial tensions are calculated.
The information provided includes properties such as dynamic contact angle, surface free energy and wettability. A common application is Critical Micelle Concentration (measured manually), which is the concentration of surfactants in which micelles are spontaneously formed. Measurements are displayed in real-time and can be printed or transferred to a computer.
- Demonstration video
- Benefits
- Applications
- Sigma range comparison
Demonstration video
Benefits
- Quick and easy standalone operation.
- Robustly designed with manual sample stage
- Results displayed on the large digital screen in real-time
- Data transfer to computer software and print option
Applications
- Influence of Contact Angles and Surface Free Energies on Biocompatibility of Biomaterials
- Critical Micelle Concentration Measurement in Aggregation Behaviour Studies
- Wettability of Pharmaceutical Powders
- ASTM D971 Standard Test Method for Interfacial Tension of Oil Against Water by the Ring Method
Sigma range comparison
SIGMA 700 | SIGMA 701 | SIGMA 702 | SIGMA 702ET | SIGMA 703D | |
---|---|---|---|---|---|
Surface tension | √ | √ | √ | √ | √ |
Interfacial tension | √ | √ | √ | √ | √ |
Critical Micelle Concentration | Automatic | Automatic | Manual | Manual | Manual |
Dynamic contact angle | Automatic | Automatic | Manual | Manual | Manual |
Interfacial tension | √ | √ | – | – | – |
Surface free energy | √ | √ | – | – | – |
Powder wettability | √ | √ | – | – | – |
Density | √ | √ | √ | √ | √ |
Sedimentation | √ | √ | – | – | – |
Balance range | 1-2000 mN/m | 1-1000 mN/m | 1-1000 mN/m | 1-1000 mN/m | 1-1000 mN/m |
Balance max load | 210 grams | 5 grams | 5 grams | 5 grams | 5 grams |
Sample stage | Motorized | Motorized | Motorized | Motorized | Manual |
Temperature control mechanism | Range of water bath accessories | Range of water bath accessories | Built-in thermostatic vessel for water bath | Thermostatic vessel for water bath | Range of water bath accessories |
Stirrer | √ | √ | – | – | – |
Provided software | OneAttension | OneAttension | Data receiver | Data receiver | Data receiver |
Product Enquiry
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