TGA PT 1000

Thermobalance with high-precision temperature control up to 1100°C

Description

To the point

The newly developed LINSEIS TGA PT 1000 top-shell thermobalance consists of a digital thermobalance and a sample holder with integrated thermocouple.

  • The thermobalance enables analysis of samples with a weight of 5g (including measuring system) from (10°C) RT to 1100°C.
  • The specially developed oven enables fast heating and cooling rates from 0.001 to 250°C/min, as well as highly accurate temperature control.

The device is ideal for thermal composition analysis, thermal stability tests and oxidation studies.

The optionally calculated DTA signal provides additional information on endothermic and exothermic reactions and can be used for temperature calibration.
MS and / or FTIR coupling is possible at any time.

New sample robot:

A sample robot with 42 positions in combination with automatic gas control and automatic evacuation enables long-term, unattended operation.

A sample robot with 90 positions is also available for an even higher sample throughput.

Unique features

Mulit Sample Robot_rot

Sample robot

Wide temperature
and pressure range

Versatile application options

Vacuum tight design

Service hotline

+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

Black on white

MODEL

TGA PT 1000

Design:
Temperature range:RT up to 1100°C
Heating and cooling rates:0.001 to 250°C/min
Sample weight:Max. 5g
Gas atmospheres:Inert, oxidizing, reducing, vacuum
Vacuum:Up to 10E-3 mbar
Gas Dosage:Built-in MFC block with 3 gases
(one purge gas and two reaction gases)
Cooling rate:< 12min (1100°C - 100°C)
Sample holder:TGA
Sample robot:90 positions
Crucible:Pt, Al2O3, Au, Al, Ag etc. more on request
EGA Couplings:Optional FTIR and/or MS or GC-MS
Interface:USB
Technical data may vary depending on furnace and components

Available accessories

  • Calculated DTA software
  • Various gas boxes: manual, semi-automatic and MFC controlled
  • Variety of crucibles (gold, silver, platinum, aluminum, Al2O3, graphite, tungsten, stainless steel (high pressure), etc.)
  • Various rotary and turbomolecular pumps
  • Sample robots with up to 90 positions

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.

TG properties

  • Percentage (%) and absolute (mg/ug) change in mass
  • Evaluation of the mass loss
  • Residual mass determination
  • 1st and
    2nd derivative (peak temperature of the mass change)

General functions

  • Real-time color display
  • Automatic and manual scaling
  • Display of the axes freely selectable (e.g. temperature
    e.g. temperature (x-axis) against delta L (y-axis))
  • Mathematical calculations (e.g. first and second derivatives)
  • Saving complete evaluations
  • Multitasking function
  • Multi-user function
  • Zoom option for various curve sections
  • Any number of curves can be loaded on top of each other for comparison
  • Online Help Menu
  • Free labeling
  • EXCEL® and ASCII export of measurement data
  • Data smoothing
  • Zero curves are offset
  • Cursor function
  • Statistical curve evaluation (mean value curve with confidence interval)
  • Tabular printout of the data and expansion coefficients
  • Calculation of Alpha Phys, Alpha Tech, relative expansion L/L0
  • Curve arithmetic, addition, subtraction, multiplication

Applications

Application example: Gypsum plaster decomposition

The measurement example below shows a damage analysis of a gypsum plaster that showed cracks and structural damage after a summer – winter cycle. The manufacturer assumed that the application was not performed properly and used thermogravimetric analysis (TGA) to compare the damaged wall part with a reference gypsum sample that did not show cracks after heating and cooling cycles. The measurement shows that the carbon and organic content of the “bad” samples (green and blue curves) is almost identical with the reference samples (red and black curve).

The weight loss percentage shows the same level around 2 % mass loss in the range around 500 °C. However, there is a significant difference in the weight loss step around 800 °C – 900°C, where the contained carbonates are released as carbon dioxide: The reference samples show a mass loss of around 30 % caused by released CO2 while the samples from the wall with cracks show only 11 % mass loss and 13 % mass loss here. This indicates that the gypsum at the wall that showed structural failures has a significant lower carbon content than it should have which indicates that indeed the mixing of the gypsum plaster was performed wrong. Interestingly, there is also a difference in carbon content between the wall at the west side (weather facing side) and the east side of the building.

Well informed

Downloads

Everything at a glance