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Measurements

  • Surface tension
  • Interfacial tension
  • Critical Micelle Concentration
  • Dynamic contact angle
  • Surface free energy
  • Powder wettability
  • Density
  • Sedimentation
  • Adhesion force

Full automation for high precision

The systems can be fully automated, avoiding user variation and saving you time. Highly precise measurements can be performed easily with just one click. 

Optimized yet versatile

Sigma 700 and 701 have full support of all measurement modes, making them adaptable to all measurements and applications. However, they are also optimized for different experiments. Sigma 700 is the optimal choice especially for powder wettability and contact angle experiments. Sigma 701 is a great choice for surface tension and interfacial tension experiments due to its very high sensitivity.

Sophisticated software

The OneAttension Software provide all measurement modes, full automation, easy measurement setup and live results. But above all, it is really user friendly and intuitive. 

Technical Specifications

Available Measurements

Sigma 700 Sigma 701 Sigma 702 Sigma 702 ET Sigma 703 D
Surface tension V V V V V
Interfacial tension V V V V V
Critical Micelle Concentration Automatic Automatic Manual Manual Manual
Dynamic contact angle V V
Surface free energy V V
Powder wettability V V
Density V V V V V
Sedimentation V V

Balance Specifications

Sigma 700 Sigma 701 Sigma 702 Sigma 702 ET Sigma 703 D
Measuring range (mN/m) 1…2000 1…2000 1…1000 1…1000 1…1000
Displayed resolution (mN/m) 0.001 0.001 0.01 0.01 0.01
Density range (g/cm3) 0…2.2 0…2.2 0…2.2 0…2.2 0…2.2
Density resolution (g/cm3) 0.0001 0.0001 0.0001 0.0001 0.0001
Maximum load (g) 210 5 5 5 5
Weighing resolution (mg) 0.01 0.005 0.01 0.01 0.01
Force resolution (µN) 0.1 0.05 0.1 0.1 0.1
Contact angle range (°) 0…180 0…180
Contact angle resolution (°) 0.01 0.01
Calibration & Locking Automatic Manual Manual Manual Manual

Measuring Unit Specifications

Sigma 700 Sigma 701 Sigma 702 Sigma 702 ET Sigma 703 D
Sample stage Motorized Motorized Motorized Motorized Manual
Sample stage speed (mm/min) 0.01…500 0.01…500 0.01…500 0.01…500
Stage positioning resolution (µm) 0.016 0.016 0.26 0.26
Dimensions (L×W×H, cm) 33.3×24.4×62 33.3×24.4×62 33.3×24.4×62 33.3×24.4×62 27.5×15.5×39
Weight (kg) 16.3 13 10.7 10.7 4.9
Power supply (VAC) 85…264 85…264 85…264 85…264 100…240
Power consumption (W) 13 13 13 13 7
Frequency (Hz) 47…440 47…440 47…440 47…440 50…60

Available models

Sigma 700/701

Dive into the specifics of Sigma 700/701 and compare them to each other to make a smart decision on what you need. Sigma 700 and 701 have full support of all measurement modes, making them adaptable to all measurements and applications. However, they are also optimized for different experiments. Sigma 700 is the optimal choice especially for powder wettability and contact angle experiments. Sigma 701 is a great choice for surface tension and interfacial tension experiments due to its very high sensitivity.

 

What you can measure

  • Surface tension: Du Noüy ring and Wilhelmy plate methods

  • Interfacial tension: Du Noüy ring and Wilhelmy plate methods

  • Critical Micelle Concentration: Du Noüy ring and Wilhelmy plate methods

  • Dynamic contact angle: Wilhelmy methods 

  • Surface free energy: Based on contact angle measurements

  • Powder wettability: Washburn method

  • Density: Density probe

  • Sedimentation: Sedimentation probe

  • Adhesion force: Liquid droplet pull-off method

Sigma CMC

Sigma CMC is based on the versatile Sigma 701 that is known for its particularly high sensitivity. It can also be used with the Sigma 700 which is optimized for powder wettability and contact angle measurements.

 

What you can measure

  • Critical Micelle Concentration: Du Noüy ring and Wilhelmy plate methods

  • Surface tension: Du Noüy ring and Wilhelmy plate methods
  • Interfacial tension: Du Noüy ring and Wilhelmy plate methods
  • Dynamic contact angle: Wilhelmy methods 
  • Surface free energy: Based on contact angle measurements
  • Powder wettability: Washburn method
  • Density: Density probe
  • Sedimentation: Sedimentation probe
  • Adhesion force: Liquid droplet pull-off method
Sigma 702

A standalone force tensiometer with automated sample stage for precise measurements. Easy to operate. 

 

What you can measure

  • Surface tension: Du Noüy ring and Wilhelmy plate methods
  • Interfacial tension: Du Noüy ring method
  • Critical Micelle Concentration: Manual measurements with Du Noüy ring and Wilhelmy plate methods
  • Density: Density probe
Sigma 702ET

Transformer Oil Analyzer specifically designed for measurements of interfacial tension of transformer oil according to relevant standards. 

 

What you can measure

  • Oil-water interfacial tension: Measured with a Du Noüy ring in accordance to the ASTM D971 and IEC 62961 standards
  • Surface tension: Du Noüy ring method
  • Interfacial tension: Du Noüy ring method
  • Critical Micelle Concentration: Manual measurements with Du Noüy ring
  • Density: Density probe
Sigma 703D

A manual standalone force tensiometer. Easy to use and perfect for simple measurements of surface tension and interfacial tension.  

 

What you can measure

  • Surface tension: Du Noüy ring and Wilhelmy plate methods
  • Interfacial tension: Du Noüy ring method
  • Critical Micelle Concentration: Manual measurements with Du Noüy ring and Wilhelmy plate methods
  • Density: Density probe

Force Tensiometer - Sigma 700/701

Biolin Scientific - Sigma CMC

Biolin Scientific - Sigma 702ET Transformer Oil Analyzer

Biolin Scientific

Biolin Scientific is a worldwide company making state of the art instruments and smart solutions for scientists. Knowledge is our greatest resource and an essential part of everything we do. In collaboration with leading universities and industries, we solve challenges to simplify the everyday life in the lab. Our customers are the experts in surface science, and we have the tools for them to progress.

The Biolin Scientific portfolio consists of the following brands: Attension®, KSV NIMA and QSense.

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