Attension® Sigma Force Tensiometers
Attension® Sigma Solo
The Attension® Sigma Solo is an accurate, automated standalone force tensiometer built for routine testing and quality control. Measure surface tension, interfacial tension, or liquid density within minutes directly from the integrated touch screen display, with no PC required.
One-Tap Automation
Automated measurements are one tap away! Embedded software guides users through each measurement and presents results on screen the moment the run completes
Standalone Simplicity
An intuitive touch screen interface keeps routine surface and interfacial analysis fast and repeatable across every operator
Easy Results Transfer
Sigma Solo stores up to 100 measurements in its onboard memory. Results can be transferred to a PC or smart phone
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Streamlined Precision for Everyday Laboratory Use
Sigma Solo is a standalone force tensiometer designed to make everyday surface science measurements simple and consistent. It delivers reliable surface tension, interfacial tension, and liquid density results for routine QC and high-throughput labs. Operation is fully self-contained to the touch screen display with step-by-step guided workflows for measurements in minutes. Single-tap automation runs measurements and shows results immediately on screen. At the core of the Sigma Solo is a sensitive force balance that records forces between a probe and a liquid interface. Using a Du Nouy ring, Wilhelmy plate, or rod probes, it accurately determines surface tension, interfacial tension, and density.
Sigma Solo: Standard
The standard Attension Sigma Solo, meaning accurate, automated standalone force tensiometer built for routine testing and quality control.
Sigma Solo: Transformer Oil
The Attension Sigma Transformer Oil is a fully automated force tensiometer designed specifically for standardized transformer oil quality testing. Featuring integrated ASTM D971 and IEC 62961 testing protocols, standalone touchscreen operation, and automated report generation.
Supported Measurements
Surface Tension/ Interfacial Tension
Measures forces at a liquid’s surface or at an interface between two dissimilar phases.
Applications:
Detergents, agrochemicals, paints, food science, pharmaceuticals
Density
Determines the density of a liquid using a probe of known weight, or the density of a solid using a liquid of known density
Applications:
Oil, food science, pharmaceuticals, coatings
Attension® Sigma Solo
Product Features
Standalone Operation with Full Automation
Sigma Solo is fully automated and operated entirely from its integrated touch display with no external PC needed. The embedded software guides users through surface tension, interfacial tension, and liquid density measurements, and results appear on the screen when each run completes. This keeps routine measurements fast and consistent, even across operators with different experience levels.
Easy Data Transfer
Sigma Solo uses USB-C connectivity for transferring data from the standalone unit to a PC or smart phone. The instrument stores up to 100 measurements to ensure experimental data is never lost between transfers and builds automatically generated PDF reports for easy export of results.
Application Support & Local Service
In the US and Canada, the Attension products are supported and serviced by Nanoscience Instruments. We pride ourselves on providing exceptional application support and field service, ensuring your team of users is well-trained and the instrument is up and running in optimal condition. Whether you are interested in discussing the feasibility of a specific experiment or need help with troubleshooting your Attension system, our Support teams are here for you!
Attension® Sigma Solo
Accessories
Advanced Sample Monitoring Options
An optional advanced sample stage expands what Solo can do. A stirrer is available for sample homogenization and temperature and pH probes can help monitor conditions during measurements. Because temperature, pH, and mixing all influence interfacial behavior, this option improves reproducibility and can better reflect real-world conditions.
Protective Doors for Stable Measurements
Optional protective doors shield the measurement zone from air currents, reducing the effect of air flow on sensitive readings. This improves baseline stability and repeatability, especially in busy lab environments.
Ionizer for Static Discharge Control
Static charge can introduce noise and instability in ultra-sensitive force measurements, particularly in dry lab environments or low-force applications. An optional ionizer neutralizes electrostatic charges around the measurement zone, improving baseline stability. This results in improved repeatability and higher confidence in precision measurements.
ASTM & IEC Standard Methods
For labs in industrial energy applications, ASTM and IEC standard methods for Transformer Oil quality testing can be added to Sigma Solo’s measurement options. This optional add-on lets users run standardized protocols directly on the instrument’s touchscreen display.
Attension® Sigma Solo
Product Knowledgebase
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