STA 509 Jupiter Classic

Exceptional Price-Performance Ratio


Outstanding Performance Coupled with Cutting-Edge Design

Get the best price/performance ratio with the STA 509 Jupiter Classic

The STA 509 Jupiter Classic offers exceptional value as the ideal affordable choice for routine high-performance simultaneous thermal analysis. Featuring a silicon carbide furnace reaching 1600°C and differential scanning calorimetry capabilities, this versatile instrument excels at typical applications like thermal stability, phase transitions, oxidation/reduction reactions, and decomposition processes across diverse materials and industries. Despite its outstanding price/performance ratio, the STA 509 Jupiter Classic delivers reliable precision, accuracy, and repeatable results thanks to its robust construction and cutting-edge technology. 

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Improving Your Productivity and Workflow by Design
The STA 509 Jupiter simplifies thermal analysis with its integrated color display to start pre-programmed measurements at a touch. Its LED light bar provides at-a-glance instrument status with color-coded indicators, allowing you to monitor measurements remotely without accessing a PC. This convenient design keeps you informed while streamlining your workflow.

Top Loading Balance Design
The top-loading, electronically compensated design provides optimal performance and ease of use. The ideal choice for flexible analytical systems and evolved gas analysis.

Defined Atmospheric Conditions
The vacuum-tight design and meticulous gas flow control enable precise handling of high-purity atmospheres, including inert, oxidizing, reducing, and corrosive gases.


Precision and Accuracy
The combination of nanogram balance and high performance heat flux DSC provides exceptional accuracy with minimal drift and unmatched flexibility for high sample loads.

Eco-Friendly Performance
The electronic thermal stabilization and Eco Mode optimize efficiency, delivering peak performance while reducing energy and gas consumption for substantial savings - promoting sustainability.

Accessories and Evolved Gas Analysis
Various sample holders broaden the range of applications. The integration of evolved gas analysis with MS, FT-IR or GC-MS extends the analytical capabilities of the STA 509 Jupiter Classic.

The STA 509 Jupiter Series

The modular design of the STA allows for easy exchange of furnaces and sensors to accommodate multiple applications over a wide temperature range from -150°C to 2400°C. The top-loading design provides ideal performance and easy of use, making it the obvious choice for a flexible analytical system and evolved gas analysis. The vacuum-tight design and meticulous control of gas flows allow precise handling of high-purity atmospheres with respect to various inert, oxidizing, reducing and corrosive gases. 

A wide range of accessories, including humidity and water vapor generators, expand the application possibilities. Furthermore, the integration of Evolved Gas Analysis with MS, FT-IR, or GC-MS systems significantly enhances the analytical potential of the STA 509 Jupiter series.


Simultaneous Thermal Analysis

Simultaneous Thermogravimetry (STG) is a method used to analyze the thermal stability and composition of materials. It combines two techniques: Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC). 

TGA measures the weight change of a material when it is heated or cooled, providing information on decomposition temperatures, moisture content, and thermal stability. DSC measures the amount of heat required to increase the temperature of a sample, providing insights into phase transitions, heat capacity, and reaction enthalpies.

STA combines these two measurement methods by simultaneously recording weight change and heat flow of a sample. A small amount of the material is placed in a special container and is then heated or cooled. The STA instrument records both the weight changes and the heat absorbed or released by the sample. This method is particularly useful because it provides detailed data on the thermal properties and composition of a material, and its efficiency saves time and sample material.

STA is used in quality control, research and development, and failure analysis. It is essential for studying the behavior of polymers, pharmaceuticals, food, and other materials under different temperature conditions, making it an invaluable tool for scientists and engineers.

Measuring Principle

Here's how Simultaneous Thermal Analysis works:

  1. Sample Preparation: A small amount of the material (sample) is placed in a special container (crucible).
  2. Heating/Cooling: The sample is heated or cooled at a controlled rate.
  3. Measurement: As the temperature changes, the STA instrument records:
    1. Weight change: How much the sample's weight increases or decreases.
    2. Heat flow: How much heat is absorbed or released by the sample.


Temperature Range
RT to1600°C
Balance performance 
Balance resolution of  0.1 μg over the complete mass range of 35 g
DSC Performance
DSC enthalpy accuracy: 1%(Indium)

Discover our carefully tailored Simultaneous Thermal Analyzer, designed to meet your needs:

  • Heating rate: 0.001 to 50 K/min
  • Temperature resolution: 0.001 K
  • Various Sensor Options: TGA, TGA-DTA, TGA-DSC
  • Optional 20-position ASC

Day-to-Day Workhorse

The silicon carbide furnace, the robust workhorse of the STA 509 Jupiter , operates from ambient to 1600°C. Equipped with an aluminum oxide protective tube, it handles aggressive samples and corrosive atmospheres. Its user-friendly design allows for easy tube replacement by operators, ensuring minimal downtime.

Eco Mode - Thermal Analysis Made More Sustainable


To obtain accurate thermogravimetric results with low drift behavior, most manufacturers have to resort to thermostatic control using a water circuit. Having to continuously run the thermostat consumes a lot of energy and produces waste heat, which subsequently needs to be regulated by air conditioning. 

NETZSCH was able to eliminate  the external thermostat. The temperature of the weighing chamber is now controlled electronically while maintaining excellent temperature stability. By eliminating the thermostat, the energy consumption of an STA 509 Jupiter for an average user is reduced by 70% (when using the instrument 3 times a day on 250 days a year), which translates into a savings of 5,000 KW/h of electricity per year. Another way to run the unit more economically is to use the Eco Mode, which turns off the gases when they are not needed. All this makes the unit cheaper to run and effortlessly reduces your carbon footprint.

Hydrogen Research with 
Thermal Analysis

Hydrogen (H2) is gaining attention for its potential role in sustainable practices and green technology. Research into the interaction of materials with hydrogen is critical for developing eco-friendly solutions that can significantly reduce environmental impact. One notable application is the use of hydrogen to mitigate high CO2 emissions from metallurgical processes through direct reduction, such as in iron ore reduction. The H2Secure concept developed by NETZSCH features a complete solution for conducting tests in environments with varying concentrations of hydrogen while providing utmost safety. This flexibility is achieved through a comprehensive safety protocol embedded in the system, enabling seamless performance of complex oxidation-reduction cycles and precise analysis of reaction kinetics and material behavior under different conditions.

  • The volume of H2 is precisely regulated by introducing hydrogen at the top of the furnace and confining it to a defined space above the continuously purged balance chamber.
  • Gas concentrations of H2 and O2 are continuously measured for safe handling.
  • The central communication unit, the H2Secure box, processes the overall information and controls the gas flows on the basis of pre-defined safety limits.
  • Fail-safe operation is achieved by opening the magnetic valves in the event of a power failure, thus releasing an inert gas that removes the hydrogen from the system.

Evolved Gas Analysis

A significant feature of our thermal analysis instruments is their capability to be coupled with Evolved Gas Analysis (EGA) techniques. EGA is a powerful tool that enhances the functionality of thermal analysis by enabling the detailed study of gases evolved during heating and cooling. This coupling allows for a comprehensive understanding of the thermal behavior and composition of materials.

We offer coupling options with Fourier Transform Infrared Spectroscopy (FT-IR), Gas Chromatography-Mass Spectrometry (GC-MS), and Mass Spectrometry (MS). Each of these techniques provides unique advantages.

By integrating these advanced EGA techniques with our thermal analysis instruments, NETZSCH ensures that you receive comprehensive and accurate data for your research and development needs. Our commitment to innovation and quality guarantees that our instruments will meet your highest expectations.

Discover many more features:


STA 509 Jupiter with Proteus - Our Powerful Analytical Software

AutoEvaluation – Fast and Objective Results Right After a Measurement

AutoEvaluation is the industry’s first self-operating evaluation system for TGA and DSC analyses. It automatically evaluates significant mass changes, endo- or exothermic reactions, generates DTG curves, and identifies peak temperatures without user input. It provides real-time, post-measurement display of evaluated curves and allows customization of detection settings and displayed results. Offering time efficiency and objectivity, AutoEvaluation benefits both novice and expert users. An example application is the thermal analysis of CuSO4·5H2O, showing a water release below 300°C, decomposition of CuSO4 between 550°C and 800°C, and reduction of CuO to Cu2O above 800°C.

Identify – The Database for Material Identification and Quality Control

Identify is a unique software tool in the field of thermal analysis for the identification and classification of materials. The included NETZSCH libraries contain more than 1300 entries from the application areas of polymers, organics, pharmaceuticals, food, cosmetics, inorganics, ceramics, metals and alloys. Signal types currently supported include DSC, DSC cp, TGA, TGA-c-DTA, STA, DIL/TMA and DMA. Users can expand the database with libraries containing an unlimited amount of their own data. Ultimately, this growing collection of database entries and measurement conditions can also be extremely useful in preparing future experiments.

It is particularly advantageous that Identify can even simultaneously incorporate two types of measurements, such as TGA and DSC or c-DTA, during identification¹. As shown in the example above, analysis with Identify in the temperature range below 500°C reveals that the TGA-DSC results are very similar to those found for gypsum (dihydrate, CaSO₄·2H₂O) in the database. The DSC peak detected at 575°C, which is due to the structural α→β transition of quartz, occurs also in the most similar database curve in that temperature range. Above 600°C, the best hit from the database search is a measurement showing the decomposition of calcium carbonate. In summary, the investigation showed that the unknown material consists of gypsum, quartz and calcium carbonate.

Additional Software Capabilities

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