STA PT 1000

STA (TG-DSC/DTA) Thermogravimetric Analyzer


On point

The STA PT 1000 is designed for analyzing organic materials within a relatively low-temperature range, extending up to 1000°C. This top-loading Thermobalance, known as TG-DSC, boasts a user-friendly design that simplifies the process. It can handle sample weights of up to 10g with electronic taring capabilities, making it a highly convenient instrument. Thanks to its specially engineered furnaces, it can achieve rapid heating and cooling rates, while also ensuring precise temperature control.

For enhanced functionality, the system can be equipped with an optional coupling device for Evolved Gas Analysis (EGA). This instrument is particularly well-suited for conducting studies on thermal composition, thermal stability, and oxidation.

Key Features:

  1. Top-Loading Sub-Microgram Balance: The system includes a top-loading balance capable of handling minute sample quantities.
  2. Temperature Range: It can operate within a broad temperature range, starting from room temperature (RT) and going up to 1000°C (Sample Temperature).
  3. Exchangeable Measuring Systems: The STA PT 1000 offers the flexibility of using different measuring systems, including TG (Thermogravimetry) and DTA/DSC (Differential Thermal Analysis/Differential Scanning Calorimetry).

In addition, the instrument can be optionally equipped with a sample robot featuring 42/84 positions. When combined with the automatic gas control and evacuating system, it enables long-term, unattended operation, enhancing its efficiency and convenience.


Model STA PT 1000*
Temperature range: RT up to 1000°C
Price range: $
Sample weight: up to 25 g
Resolution: 0.5 ug
Sensor: E/K/S
Vacuum: 10E-2mbar (if operated below 800°C)
Heating rates: 0,01 up to 100°C/min
Sensor: TG
DTA – Calc.: optional
Envolved Gas Analysis: optional
Sample robot: 42 positions

*Specs depend on configurations

Model STA PT 1000 HiRes*
Temperature range: RT up to 1000°C
Price range: $$
Sample weight: up to 5 g
Resolution: 0.1 ug
Sensor: E/K/S
Vacuum: 10E-2mbar
Cooling rates: < 15min (1000°C – 100°C)
Sensors: TG
TG – DSC (Cp)
DTA – Calc.: optional
Envolved Gas Analysis: optional
Sample robot: 84 positions

*Specs depend on configurations

Accessories for TG-DSC instruments

Our STA can be equipped with an unmatched amount of different user exchangeable TG-DSC, TG-DTA or TG sensors.

Software for Calculating DTA Signals:

The system is equipped with specialized software for the precise determination of calculated DTA (Differential Thermal Analysis) signals, providing accurate and insightful thermal analysis results.

Variety of Vacuum and Turbo Molecular Pumps:

The instrument offers a range of vacuum and turbo molecular pumps, catering to different vacuum requirements and ensuring efficient sample analysis.

Flexible Gas Control Options:

Users have the flexibility to choose from manual, semi-automatic, and automatic Gas Control Boxes, including Mass Flow Controllers (MFCs), to regulate gas flow with precision and convenience.

Wide Selection of Crucibles:

A diverse selection of crucibles is available, including materials like gold, silver, platinum, quartz glass, alumina oxide, aluminum, high-pressure stainless steel, and more. This variety allows for compatibility with a wide range of sample types and analytical needs.

Sample Robot with High Capacity:

The system can be equipped with a sample robot featuring up to 84 sample positions, enhancing productivity and enabling batch analysis of multiple samples with ease.

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Every LINSEIS thermo-analytical instrument is seamlessly integrated with PC control. The software components are designed exclusively for Microsoft® Windows® operating systems and consist of three key modules: temperature control, data acquisition, and data evaluation. This 32-bit software package encompasses all the necessary functions for preparing, conducting, and analyzing STA (Simultaneous Thermal Analysis) measurements. With the expertise of our specialists and application professionals, LINSEIS has developed an intuitive and user-friendly application software, ensuring that users can easily navigate and make the most of their instruments.

General Features

  • Program capable of text editing
  • Data security in case of power failure
  • Thermocouple break protection
  • Repetition measurements with minimum parameter input
  • Evaluation of current measurement
  • Curve comparison up to 32 curves
  • Storage and export of evaluations
  • Export and import of data ASCII
  • Data export to MS Excel
  • Multi-methods analysis (DSC TG, TMA, DIL, etc.)
  • Zoom function
  • 1 and 2 derivation
  • Programmable gas control
  • Statistical evaluation package
  • Free scaling

Key TG Features:

  1. Mass change displayed as a percentage and in milligrams (mg).
  2. Control of mass loss rates.
  3. Assessment of mass loss.
  4. Evaluation of residue mass.
  5. Optional feature: Dynamic rate TGA measurement.

HT-DSC Features:

  1. Glass transition temperature analysis.
  2. Curve subtraction capabilities.
  3. Complex peak evaluation.
  4. Multipoint calibration for sample temperature.
  5. Multipoint calibration for change of enthalpy.
  6. Cp calibration for heat flow analysis.


Application example: Vitriol of Copper

Inorganic salts release their crystal water initially. When Copper sulfate (Vitriol of Copper) is heated at a rate of 10°C per minute, the first TG stage reveals the removal of 4H2O molecules. Both TG and DTA analyses indicate that this curve comprises two distinct steps, with one immediately following the other. At approximately 250°C, the most tightly bound water molecules evaporate.

Application example: Decomposition of Rubber

In the initial stage of weight loss, the sample undergoes dehydration, resulting in a 9.27% reduction in weight. In the second step, conducted under a nitrogen (N2) atmosphere, volatile components are released through pyrolysis, accounting for a weight loss of 35.99%. In the third step, the atmosphere is switched to oxygen (O2), leading to the combustion of all organic components and a weight loss of 14.33%. The remaining portion, which constitutes 40.41% of the total weight, comprises inorganic components such as ashes, slake, or fillers.


STA Product Brochure (PDF)

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