DSC-1500 High-Temperature Differential Scanning Calorimeter
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Description
Product Introduction:
High‑temperature differential scanning calorimeter with an extended temperature range, capable of heating up to 1500°C. Featuring a newly designed furnace structure that offers superior high‑temperature resistance and corrosion protection, along with exceptional measurement accuracy. An intelligent temperature‑control system supports heating, isothermal holding, and cooling, while a bidirectional operation mode ensures convenient handling. This high‑temperature DSC can measure melting points, glass transition temperatures, enthalpy values, curing temperatures, product stability, oxidation induction periods, degrees of cure, gelation, crystallization, and specific heat capacities, making it suitable for research across a wide array of fields, including tubing, polymers, chemicals, food, healthcare, and energy.
Instrument Features
Heating is achieved via indirect conduction, offering superior uniformity and stability while minimizing pulsed radiation—outperforming conventional heating methods.
Two-way control system, offering high operational convenience and enhancing testing efficiency.
It employs a high-sensitivity constantan sensor, which offers excellent resistance to high temperatures and corrosion.
Intelligent temperature-control mode enables multi‑stage temperature settings, allowing for heating, holding at a constant temperature, and cooling according to the specific temperature‑testing requirements of different materials.
7-inch color touchscreen display with high clarity and comprehensive information presentation.
The software records test profiles in real time, performs online data analysis, and can directly generate or print reports.
Technical specifications:
| Project | Parameter Description |
| Temperature range | Room temperature to 1500℃ |
| DSC range | ±1200mW |
| Temperature sensitivity | 0.01℃ |
| Heating rate | 0.1~100℃/min |
| Cooling time | 1000~-50℃≤20min |
| Temperature control method | PID control, heating, cooling, and temperature holding |
| DSC sensitivity | 0.01mW |
| Data acquisition frequency | 1 second to acquire 33 points, with multi-point adjustment available. |
| Cooling method | Air-cooled |
Instrument Principle
During both physical and chemical changes, substances often exhibit thermal effects; the release or absorption of heat reflects changes in their enthalpy. A differential scanning calorimeter measures, under identical heating conditions, the temperature difference between a sample and a reference material as a function of temperature or time. Differential scanning calorimetry is a technique that, under programmed temperature control, determines the relationship between the power difference between the sample and the reference and the temperature. Our instruments are heat‑flow type differential scanning calorimeters, with the vertical axis representing the heat‑flow difference between the sample and the reference, expressed in milliwatts (mW), and the horizontal axis indicating time (t) or temperature (T), increasing from left to right (any deviation from this convention must be clearly noted). After placing the sample and the reference material into their respective crucibles, the system is heated at a specified rate; if the sample and the reference have roughly similar heat capacities, an ideal differential scanning calorimetric curve can be obtained. 
In the figure, curve T represents the temperature profile recorded by the thermocouple inserted into the reference material. The line AH shows the temperature‑difference curve between the sample and the reference. If no thermal effect occurs in the sample, the temperature difference ΔT between the sample and the reference is zero, yielding a smooth baseline such as that observed between points A–B, D–E, and G–H on the curve. When a thermal effect causes the sample temperature to be lower than that of the reference, an endothermic peak appears, with the maximum shifting downward, as seen in the region B–C–D. Conversely, if the sample temperature exceeds that of the reference, an exothermic peak emerges, with the maximum shifting upward, as in the region E–F–G. The number, position, area, direction, height, width, and symmetry of the peaks in the figure reflect the number of physical and chemical transformations occurring in the sample within the measured temperature range, the temperature intervals over which these transitions take place, and the magnitude and sign of the associated thermal effects. In addition to being influenced by the experimental conditions, the peak height, width, and symmetry also depend on kinetic factors governing the sample’s transformation process; consequently, the observed results are far more complex than those predicted by an idealized curve.
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