High-Precision Simultaneous Thermal Analysis with the STA L82
The LINSEIS STA L82 is a high-precision Simultaneous Thermal Analyzer (STA) that combines Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC) in one compact system. Designed for a temperature range up to 1100 °C, the STA L82 enables accurate determination of both weight changes and thermal effects under precisely controlled atmospheres. Its advanced furnace control ensures rapid heating and cooling with minimal overshoot, while the integrated HiRes option provides unmatched resolution for detecting subtle mass change effects. With options for vacuum operation, evolved gas analysis, and robotic automation, the STA L82 delivers maximum flexibility for research, quality control, and process development across polymers, pharmaceuticals, building materials, and beyond.
Unique Features
Electronics upgrade
The new measuring electronics offer significant performance improvements and are based on the “Linseis Digital Balance” architecture.
The advantages of this new digital scale architecture include:
Minimization of drift
Ensures consistently high precision over long periods of time.Improved resolution
Unique resolution in the sub-microgram range.Highest accuracy
Increases the reliability of your measurement results.Reproducibility
Ensures consistent results with repeated measurements.
New hardware features
Tri-Couple DTA measuring system
DTA measuring system with three thermocouples for detecting the smallest endothermic and exothermic effects – even with inhomogeneous samples.Jacketed DTA measuring system for corrosive samples
Specially developed for demanding sample environments, the jacketed DTA system offers additional protection against corrosive gases and aggressive decomposition products. It ensures the long-term durability of the sensor system and precise heat flow measurements – even with highly reactive or contaminating substances.Patented “Forced Flow” method
Enables a forced gas flow through your TG or TG-DTA measurement. Up to 100 % of the reaction gas is selectively supplied to the sample.
This innovative method allows scalable measurements for the first time and therefore precise analysis under realistic conditions.
Design improvements
The new device design is characterized by an elegant aluminium housing that is both robust and visually appealing. An LED status bar provides a user-friendly visualization of important information. A touch panel enables intuitive operation and ensures a modern user experience that combines convenience and functionality. The focus of the new design is on ergonomic handling.
Linseis Lab Link
With Linseis Lab Link, we offer an integrated solution for eliminating uncertainties in measurement results. With direct access to our application experts via the software, you receive advice on the correct measurement procedure and how to evaluate the results. This direct communication ensures optimal results and maximizes the efficiency of your measurements for accurate analysis and research and a smooth process flow.
Software improvements
Lex Bus Plug & Play
Our latest hardware interface Lex Bus revolutionizes data communication within our systems.
Lex Bus enables the seamless and efficient integration of new hardware and software tools.Improved furnace control
Our new and further optimized furnace control system allows even more precise temperature control.
The result: more precise temperature control – exactly according to your wishes and requirements – and therefore better measurement results.New software with user interface
Our communication is now even more focused on your needs:
You are always informed about the current status and receive targeted support whenever it is needed.Process reliability
Our software has been optimized for maximum process security: Your data is protected at all times and can be processed in a fail-safe manner.Error messages and bug fixes
The system automatically detects errors and problems, documents them immediately and fixes them as quickly as possible – for minimal downtime.Automatic updates and new functions
Regular automatic software updates not only improve security, but also continuously bring new functions.Permanent system monitoring
The software permanently monitors all system parameters – for optimum performance at all times.Preventive maintenance and problem detection
Our preventive maintenance approach detects problems and wear at an early stage, before damage occurs – to keep your appliance in top form for the long term.
Automatic evacuation
The appliances have an integrated automatic emptying function that ensures efficient processes and smooth operation.
Evolved Gas Analysis & Gas Safety System
An optional gas analysis with MS, FTIR or GCMS provides valuable additional information. The system supports stand-alone or integrated MFCs for precise gas dosing and can be customized with options such as a heated inlet. A flexible gas safety system enables the safe use of gases such as hydrogen or carbon dioxide.
Highlights
Accessories starter kit
Optional sample robot
Large temperature range
Shielded DTA
for corrosive
applications
Moisture &
Water vapor
Vacuum and
controlled atmosphere
Automatic evacuation
and calibration
Key Features
Wide temperature range
Room temperature to 1100 °C – The LINSEIS STA L82 is optimized for the analysis of organic and other materials in this range. With precise furnace control and optional HiRes technology, it ensures accurate measurements across the complete range.
Vacuum and controlled atmosphere
- Supports high vacuum as well as inert, reducing, oxidising or humidified atmospheres
- Optional pressurisation with up to 5 bar overpressure is possible
- The analysis of certain corrosive conditions is possible with appropriate precautions
- A heated capillary can be integrated as an option for residual gas analysis
Sample robot
Our STA L82 can be equipped with a proven sample robot that enables unattended sample measurements – for maximum sample throughput.
Questions? We're just a call away!
+1 (609) 223 2070
+49 (0) 9287/880 0
Our service is available Monday to
Thursday from 8 am to 4 pm
and Friday from 8 am to 12 pm.
We are here for you!
Specifications
Balance resolution: 0.1 µg
Temperature range: RT to 1100°C
Optional automation: 42- or 90-position sample robot
Discover our high-performance STA – developed for maximum flexibility and precision:
Heating rates: 0.01 to 100 K/min
Temperature precision: 0.001 °C
Atmospheres: Vacuum down to 10⁻² mbar (optional), pressure up to 5 bar (optional)
DSC resolution: 0.3 – 1.2 μW
Sensor options: TG, TG-DTA, TG-DSC with E / K / S / B / C (C = DTA only)
Recommended Equipment
EGA - Evolved Gas Analysis
Gas Dosing & Gas Safety
Water Vapor & Relative Humidity
Method
Simultaneous Thermal Analysis
Simultaneous Thermal Analysis (STA) combines Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC) in a single measurement. This setup records both mass changes and thermal effects in parallel on the same sample under identical conditions.
By measuring both signals simultaneously, deviations caused by differences in sample geometry, heating rate, or atmosphere are avoided. The results are directly comparable, ensuring reliable interpretation of even complex thermal processes.
With STA, it is possible to clearly distinguish between processes that occur with or without mass change:
DSC reveals thermal events such as melting, crystallization, or phase transitions.
TGA provides complementary information on decomposition, oxidation, or evaporation.
The correlation of DSC and TGA signals allows enthalpy values to be corrected based on mass loss, delivering improved quantitative accuracy.
This dual technique is particularly powerful for the analysis of advanced materials, polymers, pharmaceuticals, and inorganic substances – enabling efficient, reproducible, and comprehensive thermal analysis in a single experiment.
Functional principle of the STA L82
The STA L82 is designed for precise characterization of organic and other materials in a temperature range up to 1100 °C. It unites thermogravimetry (TGA) and differential scanning calorimetry (DSC) in one instrument, allowing both weight changes and thermal effects to be tracked simultaneously.
The integrated high-resolution balance detects even the smallest mass variations, such as those caused by evaporation, decomposition, or oxidation. In parallel, the sensitive calorimetric sensors register heat effects including melting points, crystallization processes, or glass transitions.
Thanks to its advanced furnace control, the STA L82 maintains stable heating rates with minimal overshoot, ensuring that both TGA and DSC signals remain directly comparable throughout the entire experiment. This makes it possible to clearly separate overlapping reactions and to link thermal events directly to mass changes.
With optional vacuum operation, controlled atmospheres, and automation features, the STA L82 enables efficient, reproducible thermal analysis tailored to the needs of modern research and industrial quality control.
Measured variables with Differential Scanning Calorimetry
Possibilities of thermal analysis using DSC:
Measured variables with Thermogravimetry
Possibilities of thermal analysis using thermogravimetry (TG):
STA L82 – tailored performance for advanced thermal analysis
Questions? We're just a call away!
+1 (609) 223 2070
+49 (0) 9287/880 0
Our service is available Monday to
Thursday from 8 am to 4 pm
and Friday from 8 am to 12 pm.
We are here for you!
STA L82 explained - function, use and capabilities
Beam Balance
Forced Flow
Forced flow – advantages in the investigation of gas-solid reactions
(patent application pending)
The forced flow principle offers numerous advantages for the analysis of reactions between gas and solid phases:
Controlled conditions
Precise control of the reaction environment for reproducible measurement results.Faster reaction times
Acceleration of slow reactions through continuous gas flow.Better mixing
Even distribution of the reactants for improved reaction kinetics.Continuous analysis
Real-time monitoring and control of the response possible.Scalability
Easily adaptable to different volumes and flow rates – ideal for optimizing production processes.
The forced flow principle is available for both thermogravimetric analysis (TGA) and the differential thermoanalytical method (DTA). This considerably expands the application range of this technology and enables more precise analyses as well as more advanced examination methods in thermal analysis.
Oxidation rates of copper with different gas supplies
The oxidation of copper produces copper oxide, whereby the reaction rate is highly dependent on the gas supply. The forced flow principle ensures that the oxidizing agent (O₂) is distributed quickly and evenly over the entire sample material right from the start. This allows the reaction to take place much faster than with conventional methods, where the gas only reaches the sample gradually.
The reaction for the formation of copper oxide is:
2Cu + O₂ → 2 CuO
Due to the forced gas flow, the oxygen reacts efficiently with the copper – for accelerated reactions and more precise analyses under realistic conditions.
Which sensors are available?
How much does an STA L82 cost?
The price of an STA L82 system depends on the selected configuration and additional options, such as the temperature range, furnace type, cooling system, automation features, or specialized measurement modes. Since each system can be tailored to your specific application requirements, the cost can vary significantly.
For an exact quotation, please use our contact form to send us your requirements – we will be happy to prepare a customized offer for you.
What is the delivery time for an STA L82?
The delivery time for an STA L82 largely depends on the chosen options and configuration. Additional features such as special furnaces, extended temperature ranges, automation, or custom adaptations may increase production and preparation time and therefore extend the delivery period.
Please contact us via our contact form to receive an accurate delivery time estimate based on your individual requirements.
For which applications are simultaneous TG-DSC/DTA measurements advantageous compared to separate TGA and DSC instruments?
Simultaneous TG-DSC/DTA measurement with the STA L81 allows changes in mass and thermal effects to be recorded under exactly the same conditions on the same sample. This avoids deviations that can occur in separate measurements due to differences in sample geometry, heating rate, or atmosphere.
It is particularly advantageous for complex, multi-step reactions or overlapping processes – for example, when a mass loss (TG) and a thermal event (DSC/DTA) occur at the same time. The direct correlation of both signals enables more precise interpretation, such as distinguishing whether a thermal effect is accompanied by a mass change or not.
This approach also saves time by requiring only a single measurement and reduces sample consumption, which is especially valuable for rare or expensive materials.
Can STA systems perform pressure-dependent measurements?
Yes, with the appropriate configuration, the STA L81 can also perform pressure-dependent measurements. Special high-pressure furnaces and gas control systems are available, allowing operation under elevated pressure. This is particularly useful for simulating reactions under realistic process conditions, for example in materials research, catalyst development, or safety testing.
Please contact us to discuss the suitable equipment and pressure ranges for your application.
Are measurements under hydrogen and water vapor atmospheres possible with STA systems?
Yes, the STA L81 can – with the corresponding equipment – be operated under both hydrogen and water vapor atmospheres. For hydrogen measurements, special safety-certified gas systems and high-temperature furnaces are available to ensure safe and controlled operation. Water vapor atmospheres can be generated using dedicated humidification systems and heated gas lines to prevent condensation and ensure stable measurement conditions.
These capabilities are particularly valuable for applications in materials development, corrosion studies, catalysis, and energy technology.
Can STA systems be coupled with gas analyzers, and is in-situ gas analysis possible?
Yes, the STA L81 can be coupled with various gas analyzers such as FTIR, MS, or GC systems. This allows in-situ analysis of gases released during the measurement. The coupling is carried out via heated transfer lines, ensuring condensation-free gas transport and accurate correlation of thermal events with the gas composition.
This combination offers a significant advantage as it provides information not only on the thermal and mass-related changes of the sample but also on the nature of the gases formed or released – ideal for material characterization, decomposition studies, and reaction mechanism analysis.
Software
Making values visible and comparable
The powerful LINSEIS thermal analysis software, which is based on Microsoft® Windows®, performs the most important function in the preparation, execution and evaluation of thermoanalytical experiments, in addition to the hardware used.
With this software package, Linseis offers a comprehensive solution for programming all device-specific settings and control functions, as well as for data storage and evaluation.
The package was developed by our in-house software specialists and application experts and has been tried and tested over many years.
Features software
- Program suitable for text editing
- Data backup in the event of a power failure
- Thermocouple breakage protection
- Repeat measurements with minimal
parameter input - Evaluation of the current measurement
- Curve comparison up to 50 curves
- Saving and exporting evaluations
- Export and import of ASCII data
- Data export to MS Excel
- Multi-method analysis (DSC, TGA, TMA, DIL, etc.)
- Zoom function
- 1 and 2 Derivation
- Curve arithmetic
- Statistical evaluation package
- Automatic calibration
- Optional kinetics and service life prediction
- Software packages
TG features:
- Mass change in % and mg
- Rate-controlled mass loss (RCML)
- Evaluation of the mass loss
- Residual mass evaluation
- “Notes on dynamic TGA measurement” (optional, chargeable service)
HDSC features:
- Glass transition temperature
- Complex peak evaluation
- Multi-point calibration for sample temperature
- Multi-point calibration for the enthalpy change
- Cp calibration for the heat flow
- Signal-controlled measuring methods
LINSEIS Thermal Library
The LINSEIS Thermal Library software package is an option for the well-known, user-friendly LINSEIS Platinum evaluation software, which is integrated in almost all our devices. The Thermal Library allows you to compare the complete curves with a database containing thousands of references and standard materials in just 1-2 seconds.
Multi-instrument
All LINSEIS instruments DSC, DIL, STA, HFM, LFA, etc. can be controlled via a software template.
Multilingual
Our software is available in many different user-interchangeable languages, such as: English, Spanish, French, German, Chinese, Korean, Japanese, etc.
Report generator
Convenient template selection for creating individual measurement reports.
Multi-user
The administrator can set up different user levels with different rights to operate the device. An optional log file is also available.
Kinetic software
Kinetic analysis of DSC, DTA, TGA, EGA (TG-MS, TG-FTIR) data to investigate the thermal behavior of raw materials and products.
Database
The state-of-the-art database enables simple data management with up to 1000 data records.
Applications
Automotive and aerospace industry
Thermophysical measurement methods are indispensable tools in research and development for the transportation and aerospace industries – including automotive engineering, aviation, satellite technology and manned space missions. They support key tasks such as component testing, quality assurance, process optimization and fault analysis.
During operation, vehicles are exposed to a wide range of environmental conditions that can affect both appearance and performance in the long term. The climatic simulations and thermal analyses provided by our devices are crucial to understanding these effects and improving product life.
This includes the precise determination of thermal diffusivity in materials such as rubber – a decisive factor for evaluating the thermal behavior and ageing resistance of technical components.
Application example: Decomposition of rubber
This measurement of an industrial rubber sample was carried out with a simultaneous thermal analyzer STA L82, starting at nitrogen atmosphere. The sample was heated in three steps with each 30 K/min. The blue curve shows the relative weight loss. In a first weight loss step, the dehydration of the sample takes place. The amount of water was 9.3 %. The corresponding DTA signal (purple curve) did not show any effect during the evaporation of water.
In the second reaction step, the volatile components are released by pyrolysis un- der N2 atmosphere. The amount of these components is 36.0%. Their release can be identified by an exdothermic reaction peak on the DTA curve. For the third reaction step, the atmosphere is changed to O2, leading to a burn off of the remaining carbon. The loss in weight is 14.3 %. The remaining 40.4 % are inorganic components like ashes, slake or fillers.
Food & Pharmaceuticals
Simultaneous Thermal Analysis (STA), combining TGA and DSC, is a powerful tool for the characterization of cosmetics, pharmaceuticals, and food products. With one measurement, both mass changes (e.g. evaporation, decomposition, oxidation) and thermal effects (e.g. melting, crystallization, glass transition) can be recorded under identical conditions.
In these industries, STA is particularly valuable for:
Stability and shelf-life studies of active ingredients and formulations
Purity and quality control of raw materials and final products
Moisture and volatile content determination
Phase transition analysis in excipients, polymers, and packaging materials
Decomposition behavior under controlled atmospheres
By correlating heat flow and mass loss in a single experiment, the STA provides reliable, reproducible data that support both research and industrial quality assurance.
Application example: Aspirin
In this application acetylsalycylic acid (Aspirin) was measured by STA L82 with focus on the DSC-signal.
By DSC, decomposition reactions can be observed and substances such as pharmaceuticals compounds can be investigated and identified. The measured ASS sample shows the following effects:
At the beginning of the heating process, some adsorbed water is released, resulting in a weight loss of about 1 %.
At 140°C the melting point of the aspirin is reached, resulting in an endothermic reaction, measured on the DTA trace.
At 60°C, decomposition of the molten drug takes place in several stages.
The decomposition products are volatile, resulting in a total weight loss of almost 100 %.
Well informed
