L81-I (STA Simultaneous Thermal Analysis)

For demanding STA applications (STA Simultaneous Thermal Analysis)

Linseis STA L-81 Big Picture

The LINSEIS L81-I (Simultaneous Thermal Analysis) is designed as a top loading Thermobalance, providing excellent drift stability, a robust design and highest TG and DSC/DTA reproducibility. All measuring systems are easily user exchangeable to ensure quick and simple system handling. The broad selection of furnaces (optional turntable) ranging from -150°C up to 2400°C and the large sample mass of up to 25g/3ml are unique features of this system. 

The balance design can provide high vacuum (10E-5mbar), inert, reducing, flowing or humidified atmosphere. Corrosive conditions can be analyzed with proper precautions. The system is capable of adapting residual gas analysis systems using an optional heated capillary.

Because of the vacuum tight design of the instrument, static and dynamic atmospheres are possible. An optional gas control box and a vacuum pump can be connected.

 

    Temperature range: -150 up to 500/1000°C
      RT up to 1600/1750/2000/2400°C 
    Sample mass: up to 25g / 3ml 
    Resolution: 1 ug
    Vacuum: up to 10E-5mbar
    Automatic evacuation: optional
    Gas control (optional): up to 4 gases
    Sensors: TG
      TG – DTA
      TG – DSC
      TG – DSC - Cp
    Sensor material: E/K/S/B 
    Electronics: Integrated or External

      All LINSEIS thermo analytical instruments are PC controlled. The individual software modules exclusively run under Microsoft® Windows® operating systems. The complete software consists of 3 modules: temperature control, data acquisition and data evaluation. The 32 bit software incorporates all essential features for measurement preparation, execution, and evaluation of a STA measurement. Thanks to our specialists and application experts, LINSEIS was able to develop comprehensive easy to understand user friendly application software.

      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

      TG – Features

      • Mass change as % and mg
      • Rate Controlled Mass Loss
      • Evaluation of mass loss
      • Residue mass evaluation

      HT-DSC – Features

      • Glass transition temperature
      • Curve subtraction
      • Complex peak evaluation
      • Multipoint calibration for sample temperature
      • Multipoint calibration for change of enthalpy
      • Cp calibration for heat flow
      • Signal-steered measuring procedures

        Materials

        Ceramic/Glass/Building Materials, Metals/Alloys, Inorganics

        Industries

        Ceramics, Building Materials and Glass Industry, Research, Development and Academia, Metals / Alloys Industry

        Cement

        The main parts of cement are tri calcium silicate, di calcium silicate and tri calcium aluminates. After putting on the cement with water different hydrates slowly form. The absorbed water evaporates first, then hydrates of the calcium silicate decompose and at 570°C the hydroxides of calcium, magnesium and aluminum follow. Subsequently, calcium carbonate CO2 splits off.

          Here is a short extract of our available accessories:

            • Multi-furnace turntable arrangement
            • MS/FTIR couplings
            • Water vapor generator
            • Different types of vacuum and turbo molecular pumps
            • Selection of manual, semi-automatic and automatic (MFC) Gas control boxes
            • Broad range of crucibles (gold, silver, platinum, quartz glass, alumina oxide, aluminum, high pressure stainless steel, etc.)