Overview

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

3 reasons to invest

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. 
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Specifications

A closer look

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.

 
Sigma 700
Sigma 701
Sigma 702
Sigma 702 ET
Sigma 703 D

Available Measurements 

Surface tension

      √        √        √        √        √

Interfacial tension

       √        √        √        √        √

Critical Micelle Concentration

 Automatic  Automatic  Manual  Manual  Manual

Dynamic contact angle

       √        √       _      _       _

Surface free energy

       √        √      _      _       _

Powder wettability

       √        √       _       _       _

Density

       √        √        √        √        √

Sedimentation

       √        √       _       _       _

Balance Specifications 

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    

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

Common Accessories

Temperature control range (° C)

-20…+200 -20…+200 -20…+200 -20…+200 -20…+200

Stirrer

       √        √        –        –        –

Software

Provided software

OneAttension OneAttension Data receiver Data receiver Data receiver

System Requirements 

Recommended system requirements

  • 1 GHz processor
  • 1 GB RAM
  • 40 GB hard disk drive (20 GB free)
  • 1 USB-port
  • Accessories such as water bath and liquid dispenser may require a free USB port

Operating system requirements

  • Windows 7 & 8 &10 (32 or 64 bit)
  • Windows Vista (32 bit)

Software

OneAttension Software

We made our software for Sigma 700/701 with you in mind. It is a fine combination of a very intuitive interface and high functionality. Follow your experiment live, and get the results within seconds. OneAttension is analyzing made easy. Let's have a look at the features! 

1

 

OneAttension Features

  • Best in class interface
    The software is easy to learn, and the logical interface allows even complex measurements to be performed with ease
  • Live analysis
    The results are shown real-time during the measurement. You can conveniently monitor your results without the need to switch between measurement and analysis tabs
  • Full automation
    OneAttension supports fully automatic measurements.
    Powerful recipe manager makes measurement setting
    convenient and simple
  • Flexibility for every need
    OneAttension has been designed to meet the requirements of almost any applications you may have. You can easily adjust measurement parameters to match your specific application needs
  • Data handling and exporting made simple
    Data analysis, plotting, and statistical analysis can all be done with a few clicks to give you accurate results within seconds. All data can easily be exported further to Excel, for example
  • Optimal for industrial use
    Measurement reports can be created with a few clicks and the user manager conveniently handles all different users – with desired privacy levels.

Accessories

Add more possibilities

What extras do you need in your research? Here are a few of our most common accessories and modules. See them all below.  

t106

Platinum Du Nouy ring

Pt-Ir-ring made to fulfill the requirements at least in following standards; ISO 301, ISO 4311, ISO 6889, ASTM D1331 and ASTM D 971. Includes also additional weight for push-mode.

T107

Platinum Wilhelmy plate

Platinum Wilhelmy plate with micro roughened surface.

t112a

Powder wettability measuring device, steel, Sigma 700 only

Sample vessel to hold the sample powder, only for Sigma 700. Perforated bottom to support filter paper and to allow liquid penetration into bulk powder, porous solids or fiber bundles. Adjustable packing piston for reproducible packing. Used in measurement of sorption behaviour. Includes one package of filter paper (T112B).

t705a

Thermostatic vessel (from -20 to +200°C)

For temperature control of the sample liquid. A heat exchange vessel with fluid jacket type of construction. Heating/cooling of the fluid jacket requires external bath/circulator, not included in T705A. Fits glass sample vessel 70 mm in diameter (T104).

t101

Dispenser, Schott Titronic 20ml

A computer controlled and software operated dispenser for automatic measurements of CMC. Two T101 dispenser are highly recommended for a fully automatic dilution measurement but the measurement can also be performed using only one dispenser by concentrating sample liquid. USB interface to PC.

Recommendations

What others say

Our instruments are present at many prestigious universities and research facilities world wide. Take a minute to find out what others say about Sigma instruments. 

citat8

 

Researcher at Riken

"We wanted the most accurate force tensiometer on the market for our research on surface tension. Our in-depth testing of the Attension force tensiometer convinced us: it is the one."

RIKEN_logo-sv

Riken, Japan

Riken is a Japanese research institute established in 1917. Its research areas include physics, chemistry, biology, medical science, engineering and computational science.