Differential thermal analyzer

Product Introduction:

Differential thermal analyzerIt is a thermal analysis instrument used to measure the temperature difference between a sample and a reference substance as a function of temperature. Used for comprehensive thermal analysis of samples, through precise measurement of key thermal parameters, to achieve in-depth evaluation of material thermal stability, melting point, compatibility, and thermal decomposition characteristics. The system can accurately measure the starting decomposition temperature, peak temperature, ending decomposition temperature, maximum temperature difference, andOnsetPoint the temperature. Raise the temperature of the sample from room temperature to550Throughout the entire temperature range of ℃, a complete record of the temperature curve is kept to provide detailed data support for evaluating the thermal stability, melting point, compatibility, and thermal decomposition parameters of the substance.

Testing principle:

The compact seat hole heating module is equipped with two stainless steel seat holes, one for placing the test sample and the other for filling inert reference materials, ensuring long-term stability with its excellent corrosion resistance. Both the sample tube and the reference tube are equipped with lids with excellent thermal insulation performance, effectively preventing the loss of heat inside the seat hole and isolating potential interference from the external environment on the test results. The thermocouple temperature sensor is precisely encapsulated in a capillary protective sleeve, directly penetrating into the interior of the sample. This innovative design ensures real-time and accurate capture of sample temperature changes, greatly improving the accuracy and reliability of test data. The instrument with overheat protection function is equipped with a dual temperature control system: one system focuses on precise temperature control of the heating furnace, and the other system is responsible for overtemperature warning. Once the temperature of the heating module rises abnormally and exceeds the preset safety threshold, the alarm mechanism is immediately triggered and the heating source is automatically cut off to ensure experimental safety. Equipped with stainless steel water filled isothermal jacket, it can automatically cool the heating module after the test is completed, preparing quickly for the next test; The temperature sensor accurately captures temperature changes.

Technical parameters:

1. Temperature range and resolution accuracy: The temperature range is between 20-550 ℃, and the accuracy of temperature resolution is ± 0.001 ℃.

2．Test tube volume: The test tube volume is 0.8 cm ³.

3．Resistance to explosion performance: capable of withstanding an explosive impact force equivalent to 50mg T-N-T.

4. Temperature control stability index: During the temperature control process, the stability accuracy is within ± 0.05 ℃.

5. Water cooling jacket: Equipped with a stainless steel water jacket, it can quickly cool down the heating module from 500 ℃ to 200 ℃ in 20 minutes.

6. Heating module construction: Made of stainless steel material, with 2 seat holes, the overall structure is stable and solid.

7. Automatic lifting system: With a maximum travel of 150mm, it can automatically place the test tube into the heating module or remove it, completely eliminating the risk of testing and ensuring the safety of operators.

8. Heating rate range: The heating rate can be adjusted between 0.1 ℃/min and 20 ℃/min.

9. Overheating protection function: 4 alarm temperature sensors are used, and the temperature is monitored in parallel by a temperature controller and an acquisition unit. When the temperature exceeds the limit, the heating is immediately cut off.

10. Touch screen controller: It has built-in operating software and is connected to PLC to achieve dual system control of the host, conduct experiments, and implement over temperature alarm function.

11. Upward position sensor: With precise detection capability and a detection distance of 2mm, it can operate stably at a frequency of 2500Hz, effectively monitoring and providing data feedback on relevant positions, providing key position information basis for the operation of the entire system, and ensuring the accuracy and safety of equipment or devices during operation.

12. Downward position sensor: It has precise detection capability, with a detection distance of 2mm, and can operate stably at a frequency of 2500Hz, effectively monitoring and providing data feedback on relevant positions, providing key position information basis for the operation of the entire system, and ensuring the accuracy and safety of equipment or devices during operation.

13. Working principle and pressure range of water pressure switch: When the cooling water stops circulating, the water pressure switch will immediately cut off the heating power supply, and its working pressure range is 0.2 bar to 1.2 bar.

14. Water flow observer: It can visually display the circulation of cooling water, effectively preventing abnormal situations such as pipeline blockage and water shortage.

15. Heating mode: Using a circular three-dimensional heating element for heating, the temperature stability performance reaches ± 0.05 ℃.

16. Operating system: Real time collection and display of data from all sensors in curve form; Support custom heating methods, including multi-stage program heating and heating waiting heating modes; All sensors have multi-stage calibration capabilities, and their data can be used for early warning; Capable of analyzing test data and evaluating reaction kinetics; It can also output test reports and perform multi graph comparisons.

17Monitoring unit: supports remote observation and recording of sample reaction phenomena, facilitating users to conduct in-depth analysis and evaluation of samples in real-time by combining reaction phenomena and related curves.

18Power supply and power: The power supply is 220 V/50 Hz, and the device power is 2000 W.