STA PT 1600 (TG-DSC)

Simultaneous Thermogravimetry and Differential Scanning Calorimetry (TG – DSC) – High Pressure ability

Description

Description

On point

The STA PT 1600 is the high end Simultaneous Thermobalance (TG+DSC) from LINSEIS. The system offers unparalleled TG and DSC resolution in combination with the highest vacuum capabilities and TG drift stability.

The TG-DSC is modular with many exchangeable furnaces (-150°C up to 2400°C), different measuring systems and crucibles. The coupling ability and many optional accessories guarantee the perfect setup for every application.

There are three versions of balances available: they differ by the maximum sample mass (5 to 50g) and the resolution (0.025 to 0.1ug).

Benefits of the vertical top loading design of the STA

The vertical “sample on top” design of the LINSEIS TG-DSC provides highest possible accuracy due to a stable position of the sample and easy sample handling.

Vertical system (sample on top) – LINSEIS configuration
Advantages:
• Easy sample handling
• Easy exchange of sample holder
• Stable position of the sample in the furnace (critical for good DTA/DSC and Cp results)

Disadvantage:
• Complicated construction

Vertical top loading design

Specifications

Model	STA PT 1600*
Temperature range:	RT up to 1600°C
Price range:	$$
Heating rates:	0.1 up to 50°C/min (depends on furnace)
Sample weight:	5 / 25 / 35 g
Resolution:	0,1 / 0,5 ug
Vacuum:	10^-5 mbar
Pressure:	optional 5 bar
Cooling rates:	< 15min (1000°C – 100°C)
Detector:	TG TG – DTA TG – DSC
Sensor:	E/K/S/B/C (C = DTA only)
Electronics:	integrated
Interface:	USB

*The specifications depend on the selected furnace and special configurations

There are three different models of STA PT 1600 available:

STA PT 1600/1

The highest resolution 0.025 μg balance for small sample quantities allows the detection of very small effects with highest accuracy.

STA PT 1600/2

The standard model covers a broad application range with excellent resolution 0.1 μg and accuracy.

STA PT 1600/3

The high mass variant allows measuring samples with big volumes or weight 35/50g to determine even small effects within a big amount of inhomogeneous material.

Accessoires for TG-DSC

Furnace Program for TG-DSC

Temperature range	Type	Element	Atmosphere	TC-Type
-150 – -500°C	L81/264	Kanthal	inert, oxid., red., vac.	K
-150 – 1000°C	L81/264ER	Kanthal	inert, oxid., red., vac.	K
RT – 1000°C	L81/220	Kanthal	inert, oxid., red., vac.	K
RT – 1200°C	L81/IR	IR Heater	inert, oxid., red., vac.	S
RT – 1500°C	L81/230Pt	Precious Metal	inert, oxid., vac.	S
RT – 1600°C	L81/240	SiC	inert, oxid., vac.	S
RT – 1650°C	L81/240Rh	Precious Metal	inert, oxid., vac.	B
RT – 1750°C	L81/250	MoSi2	inert, oxid., vac.	B
RT – 2000°C	L81/260	Graphite	inert., red.	C
RT – 2400°C	L81/260	Graphite	inert., red.	C
Special furnaces
RT – 1600/1750°C	L81/240/250 WV	SiC/MoSi2	water vapor furnace	–
RT – 1100/1600°C	L81/IR/HF	IR/HF	high speed furnaces up to 100°C/s	–

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STA – customizations

Linseis manufactures also tailor made instruments according to customers needs, e.g.:

Inductive or IR Heater
Inductive or IR heater and standard furnace for extremely fast and accurate heating and cooling
Separated Electronics
Instruments for use in gloveboxes (e.g. for nuclear applications)
Vacuum & Pressure
With vacuum and/or pressure regulation to run measurements under defined pressure conditions
Water vapor

Thermal Analysis for Nuclear applications

STA for nuclear: The Separation of control electronics and analyzer unit like it is required for the examination of radioactive or toxic materials in a glove box or hot cell

Software

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
“How to dynamic rate TGA measurement” (optional)

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

Applications

Applications example: Decomposition of Calcium Oxalate monohydrate CaC₂O₄ under Argon Atmosphere

The evolved gases from the decomposition of Calcium Oxalate have been fed into the Mass Spectrometer with a heated capillary. The ion currents for mass numbers 18 (water), 28 (carbon monoxide) and 44 (carbon dioxide) have been imported into the graph.