Attension® Sigma Force Tensiometers
Attension® Sigma 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. Sigma Transformer Oil enables laboratories to perform accurate, repeatable surface tension measurements with minimal operator training.
ASTM & IEC Compliant
Perform standardized transformer oil testing using pre-configured ASTM D971 and IEC 62961 methods
Standalone Operation
Run measurements directly from the integrated touchscreen without requiring a connected PC
Fully Automated
Automated workflows reduce operator variability and improve measurement consistency
Ready-to-Report Results
Automatically generate reports formatted to meet ASTM and IEC reporting requirements
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Reliable Interfacial Tension Testing for Transformer Oil Quality Control
The Attension® Sigma Transformer Oil is purpose-built for laboratories performing routine quality control of insulating transformer oils. By combining fully automated measurements with integrated ASTM D971 and IEC 62961 standard methods, the system delivers fast, reliable, and repeatable testing while minimizing user intervention.
Unlike traditional force tensiometers that require manual method development, Sigma Transformer Oil allows operators to select standardized test methods directly from the instrument’s touchscreen. Guided workflows lead users through each step of the measurement process, while automated report generation produces documentation aligned with industry reporting requirements.
Designed for both experienced analysts and occasional operators, Sigma Transformer Oil helps utilities, testing laboratories, transformer manufacturers, and maintenance facilities streamline transformer oil quality assessment while improving consistency across users.
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 Transformer Oil
Product Features
Built-In ASTM & IEC Standard Methods
Sigma Transformer Oil includes pre-configured ASTM D971 and IEC 62961 testing methods specifically developed for transformer oil analysis. Operators simply select the desired standard from the touchscreen, and the instrument automatically performs the measurement using the appropriate workflow, eliminating manual method setup.
Standalone Touchscreen Operation
Routine transformer oil testing can be performed directly from the integrated touchscreen without requiring a connected computer. The intuitive interface provides guided workflows that simplify operation, reduce training requirements, and ensure standardized testing procedures across laboratories.
Easy Data Transfer
Sigma Transformer Oil 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.
Fully Automated Measurements
Once the sample has been prepared, Sigma Transformer Oil performs the measurement automatically. Automated positioning and measurement sequences reduce operator variability while improving repeatability and laboratory efficiency.
Automated Standards-Based Reporting
Following each measurement, Sigma Transformer Oil automatically generates reports formatted to align with ASTM D971 and IEC 62961 reporting requirements. This simplifies documentation, improves traceability, and reduces the time required to prepare quality control records.
High-Precision Force Measurements
An ultra-sensitive force balance delivers accurate and repeatable surface tension measurements critical for assessing transformer oil quality. Stable measurements help laboratories confidently monitor oil condition and identify changes that may indicate contamination or degradation.
Stable Measurement Environment
Protective doors surround the measurement area to minimize disturbances from air currents and environmental fluctuations. This improves baseline stability and enhances repeatability, particularly during routine quality control testing.
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 Transformer Oil
Accessories
Temperature Monitoring
Optional temperature monitoring helps laboratories verify testing conditions and improve consistency when environmental conditions may influence measurement results.
Ionizer for Static Discharge Control
Static electricity can interfere with highly sensitive force measurements. An optional ionizer neutralizes electrostatic charge around the measurement area, improving baseline stability and enhancing measurement repeatability.
Attension® Sigma Transformer Oil
Product Knowledgebase
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