Instrument introduction:
      Differential thermal analysis (DTA) is a technique to measure the relationship between temperature difference and temperature between substance and reference substance under the temperature controlled by program. In DTA test, the change of sample temperature is caused by phase transformation or endothermic or exothermic effect of reaction.

Instrument purpose：
      It mainly measures physical and chemical changes related to heat, such as melting point, melting heat, crystallization and crystallization heat, phase change reaction heat, thermal stability (oxidation induction period), glass transition temperature, oxidation or reduction reaction, lattice structure damage and other chemical reactions.

technical parameter: 
1. Temperature range: room temperature~1250℃   
2.  Range: 0～±2000μV      
3. heating rate: 0.1~80℃/min
4. Temperature resolution: 0.01℃
5.  Temperature repeatability: ±0.1℃
6.  DTA accuracy: 0.01μV 
7. Temperature control mode: temperature rise: program control
                    Constant temperature: program control  Constant temperature time can be set at will
8.  Curve scan: temperature rise scan
9. Atmosphere control: automatic switching of instrument
10.  Gas flow：0-200mL/min  
11.  Gas pressure：0.2MPa
12. Display mode: 24 bit color 7 inch LCD touch screen display
13. Data interface: standard USB interface
14. Parameter standard: equipped with reference material, with one button calibration function, user can self calibrate temperature and enthalpy
15. Working power supply: AC 220V  50Hz Or custom
16.  Power：600W

Main features：
1.  The new fully enclosed metal furnace design structure greatly improves sensitivity, resolution and baseline stability. 
2.  It adopts imported alloy sensor, which is more corrosion-resistant, anti-oxidation and high sensitivity.
3.   With Cortex-M3 core arm controller, the operation speed is faster and the temperature control is more accurate.
4.  USB two-way communication is adopted to realize intelligent operation.
5.  The 7-inch 24 bit color full-color LCD touch screen is used to display the status and data of the instrument in real time.
6.  Intelligent software design, automatic drawing of the whole process of the instrument, software can realize various data processing, such as calculation of enthalpy, glass transition temperature, oxidation induction period, melting point and crystallization of substances, etc.

Reference standards：
GB/T 19466.2 – 2004 / ISO 11357-2: 1999Part 2: Determination of glass transition temperature；
GB/T 19466.3 – 2004 / ISO 11357-3: 1999Part 3: Determination of melting and crystallization temperature and enthalpy；
GB /T 19466.6- 2009/ISO 11357-3 :1999 Part 6 Determination of oxidation induction time (isothermal OIT) and oxidation induction temperature (dynamic OIT) during oxidation induction period。