Vacuum thermogravimetric analyzer

BSD-VTGVacuum thermogravimetric analyzer

Product Overview:

◆ It is an instrument that uses thermogravimetric analysis to detect the temperature mass relationship of substances.

Under programmed temperature control, the main measurement is the continuous variation relationship of the mass of the substance with temperature and time.

When the substance being tested undergoes sublimation, vaporization, decomposition into gas or loses its crystalline water during the heating process, the mass of the substance being tested will change.

At this point, the thermogravimetric curve is not a straight line but has decreased slightly.

By analyzing the thermogravimetric curve, it is possible to determine the temperature at which the measured substance changes, and based on the weight loss, the amount of substance lost can be calculated.

Vacuum thermogravimetric analyzer

Performance parameters

◆ Specialized vacuum thermogravimetric analysis; (Does not support atmospheric thermogravimetric analysis)

Program temperature control range

32 segment program heating up;

◆ Room temperature~900 ℃;

Accuracy better than ± 0.1 ℃, stability better than 0.1 ℃.

Micro weighing system

Resolution of 1ug, maximum sample weighing capacity of 15g;

vacuum system

Double stage mechanical pump, with a maximum vacuum of better than 10-3 mbar;

◆ Optional turbo molecular pump, with a maximum vacuum better than 10-6mbar;

Number of analysis stations

◆ 2/4/8 analysis stations, capable of simultaneously analyzing 2/4/8 samples;

Blank reference synchronous testing

Multiple analysis stations can analyze simultaneously, and blank reference positions can be set. The software supports automatic background subtraction; Eliminate system errors and improve testing accuracy.

Online Mass Spectrometry

◆ Equipped with a high vacuum and large diameter online mass spectrometry interface, supporting the analysis of pyrolysis gas composition under high vacuum.

◆ Segmented pressure measurement: dual pressure sensors; Segmented testing: 0-1torr, 0-1000torr; Capacitive thin film pressure sensor with a reading accuracy of 0.15, which is currently the highest accuracy of pressure sensors; Segmented pressure sensor configuration can achieve higher accuracy in adsorption testing and analysis of steam adsorbents with lower saturated vapor pressure at room temperature; Compared to a single pressure sensor, the testing accuracy is improved by more than 2 orders of magnitude;

◆ Vacuum pump: German two-stage direct connection vacuum pump, low noise, long life. (Molecular pump is optional)

◆ Quartz wire insulation sealing: The pressure, temperature and other sensor signals in the vacuum chamber use the current international high standard quartz wire insulation sealing technology, with extremely low leakage rate, aging resistance and strong stability;

Intelligent automatic calibration: The airtightness automatic detection process intelligently determines whether the instrument's airtightness is qualified;

◆ Quadrupole mass spectrometry: optional German INFICON online mass spectrometry (origin: United States, provide certificate of origin and original factory calibration test certificate);