Product Overview
The DTA-1250S Differential Thermal Analyzer is an analytical instrument that measures the relationship between the temperature difference of a substance and a reference material under programmed temperature control. Its differential thermal analysis curve describes the variation in temperature difference between the sample and the reference material with temperature or time, and can be used to detect temperature changes in the sample caused by endothermic or exothermic effects due to phase transitions or reactions.
Product Features
1. Equipped with an imported high-frequency sealed ceramic insulation furnace structure, it enhances signal sensitivity and resolution, and provides more stable baselines.
2. Utilizes a core control processor, offering fast computation and processing speeds for efficient control.
3. The sensor is designed with imported materials, allowing seamless switching between K-type and E-type sensors via software, suitable for experiments such as phase transitions and glass transitions in polymer materials.
4. Features an independently controllable atmosphere system that can be intelligently configured via software, with automatic gas path switching for high experimental efficiency.
5. Both the lower and upper computers are equipped with multi-point temperature calibration functions, improving the accuracy of temperature testing.
6. Offers two experimental modes, FTC and STC, with user-friendly and flexible temperature control to meet the needs of different application scenarios, ensuring precise temperature control and efficient signal analysis.
7. The full temperature control system employs an optimized dynamic PID algorithm, overcoming the drawbacks of traditional PID algorithms and enhancing the robustness of dual-mode temperature control.
8. Supports 12-step programmed temperature settings for diverse experimental methods, and includes a cyclic scanning function with up to 9,999 cycles, with automatic data saving.
9. The sampling frequency for sensor signals can be set from 1 to 10 Hz, providing flexible experimental methods and controllable data.
10. Features a dual-temperature sensor design, enabling simultaneous measurement of both the furnace internal temperature and the sample temperature.
11. The system supports heating, cooling, and isothermal experiments for related materials.
12. The instrument uses USB bidirectional communication and intelligent software design, featuring baseline subtraction, automatic plotting during experiments, and intelligent processing of data such as glass transition temperature, oxidation induction period, melting point, and crystallization.
Working Principle
Differential thermal analyzer measures the relationship between the temperature difference of a substance and a reference material under programmed temperature control. Its differential thermal analysis curve describes the variation of the temperature difference between the sample and the reference material with temperature or time. During the experiment, changes in the sample's temperature are primarily caused by the endothermic or exothermic effects of phase transitions or reactions.
Application field
Phase transformation, melting, crystallization, boiling, sublimation, evaporation, dehydrogenation reaction, fracture or decomposition reaction, oxidation or reduction reaction, destruction of crystal lattice structure, other chemical reactions.
Complies with standards
GB/T 19466.3 – 2004 / ISO 11357-3: 1999 Part 3: Determination of melting and crystallization temperatures and enthalpies
