Sigma 700/701

Applications

Sigma 700 and 701 are force tensiometers used for the determination of:

• Surface tension
• Interfacial tension
• Critical micelle concentration
• Dynamic contact angle
• Surface free energy
• Powder wettability
• Adsorption
• Wettability
• Cleanliness
• Sedimentation
• Density

Measuring with Sigma 700/701

Available measurements:

• Static surface tension
• Static interfacial tension
• Automatic critical micelle concentration
• Dynamic contact angle
• Surface free energy
• Powder wettability
• Density
• Sedimentation

Sigma 700 and 701 outstanding versatility makes them suitable for research and development, industrial quality control, routine measurements and even educational use. It features full computer control and high level of automation. Special attention has been paid to the ergonomic and user-friendly design.
 

Sigma 700/701 force tensiometers come with the OneAttension software for unparalleled performance and usability:

• Fully automatic measurements avoids user dependant variation and saves time
• Select readymade experiment recipes or create custom programs for quick and repeatable operations
• Programmable probe and sample immersion and withdrawal cycle(s)
• Step by step powder protocol for simple powder wettability measurement
• Fully automatic CMC measurement

OneAttension is an all-inclusive software enabling immediate access to all measurement capabilities with no need to purchase and install separate software modules. It features an intuitive user interface, live analysis, configurable user groups and accounts and a preset liquid database. Any datapoints or groups of datapoints can be selected, transformed, plotted and analyzed. Data can easily be exported. In-depth analysis is now just a matter of seconds.

Accessory modules for dispensers and temperature or pH control can be easily mounted into the measuring unit. In addition, special probes are available for density, wettability and tensiometry measurements as well as holders for fiber and plate studies. Two dispensers can be used simultaneously for critical micelle concentration (CMC) measurements, allowing a full CMC curve to be obtained in one measurement.

 
Because of its wide weight range and autocalibrating microbalance, the Sigma 700 is well suited for dynamic contact angle measurements of large and heavy solid and powder samples.  Very similar to Sigma 700, Sigma 701 is also a multipurpose tensiometer but equipped with a different microbalance optimized for a different range of applications. Sigma 701 can measure in a much more narrow weight range but with improved sensitivity, optimized for fiber measurements.

Balance specifications

Measuring unit specifications

Recommended system requirements

1GHz processor, 1GB MB RAM, 40 GB hard disk drive (20GB free), 1 USB port.
Accessories such as water bath and liquid dispenser may require a free RS-232 port.

Operating system requirements

Windows 7 (32 or 64 bit), Windows Vista (32 bit), Windows XP SP3 (32 bit).

More information is available from the product catalogue. Accessories can be found here.