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  • Accurate compensation on horizontal differential triple-coil balance
  • Compact furnace greatly speeds up heating and cooling
  • Dynamic TG measurement modes
    • Stepwise isothermal analysis (SIA) method
    • Constant rate control (CRC) method
  • Measuring temperature range
    • Standard model : Ambient to 1100°C
    • High-temperature model : Ambient to 1500°C
    • Sample observation model : Ambient to 1000°C
Sample observation videos
Decomposition of PET
Ignition of matchstick head
Glass transition, crystallization and fusion of glass
Dehydration of Cobalt (II) sulfate heptahydrate

Simultaneous Thermal Analyzer

Measures weight changes and endothermic or exothermic reaction

Simultaneous thermal analysis (STA) is an analytical technique that simultaneously measures thermogravimetry (TG) and differential thermal analysis (DTA). 

In thermogravimetry, measuring the sample’s change in weight enables us to analyze the reaction temperature and the rate of weight change in reactions such as dehydration, thermal decomposition, evaporation, oxidation. Differential thermal analysis (DTA) measures the endothermic or exothermic reaction temperatures such in transition, melting, crystallization, dehydration, decomposition, oxidation and glass transition temperature. Using it as TG-DSC is also possible by converting the DTA to DSC thru calibration using the melting peaks of standard metals.

Rigaku’s TG-DTA adopts the horizontal differential triple-coil balance that cancels various fluctuations causing TG drift to achieve a highly accurate weight change measurements. Also, the sample controlled TG (SCTG) method is equipped as a standard. This is a method where the temperature is controlled by the rate of the sample’s change in weight and has 2 modes, namely constant reaction control (CRC) and stepwise isothermal analysis (SIA). 

Furthermore, the sample observation TG-DTA can perform measurements while capturing visual images of the sample with a CCD camera. Thru these images, we can observe shape changes or color changes in the sample associated with a reaction. These images are helpful in interpreting TG-DTA results.

Product name STA8122
Technique Simultaneous thermal analysis
Technology Horizontal differential thermogravimetric-differential thermal analyzer (TG-DTA)
Core options Smart loader, Sample observation unit
Computer External PC
Core dimensions 350(W) x 310(H) x 669(D)(mm) 
480(W) x 483(H) x 669(D)(mm) w/ Smart loader
Mass (core unit) 28 kg (43 kg w/ Smart loader)
Power requirements 1Ø, AC100-120V/200-240V 50/60Hz 15A