serverealinstruments

[serverealinstruments]

How to calibrate a Differential scanning calorimeter (DSC)? The Differential scanning calorimeter (DSC) is a commonly used thermal analysis instrument used to measure the changes in thermal properties of substances during heating or cooling processes. Calibration and maintenance of analyzers are key steps in ensuring their accuracy and extending their lifespan. Calibration of Differential scanning calorimeter (DSC) 1. Preparation work: Check if the appearance of the instrument is intact and if there are any damaged or loose parts. Check if the power supply and connecting wires of the instrument are normal. Check if the temperature control system of the instrument is working properly. 2. Calibration of temperature control system: Measure the temperature of the instrument using a standard thermometer and compare it with the temperature displayed on the instrument. If there are differences, adjustments need to be made until they are consistent. 3. Heat capacity calibration: Use standard substances with known heat capacity for calibration. Put the standard substance into the analyzer and measure its heat capacity. Compare the measurement results with known values, and make adjustments if there are differences. 4. Sensitivity calibration: Use standard substances with known changes in heat for calibration. Place the standard substance into a differential thermal analyzer and measure its thermal change. Compare the measurement results with known values, and make adjustments if there are differences. 5. Anti calibration: Use thermal analysis standard materials for back calibration. Place the thermal analysis standard substance into the instrument and record the DSC curve. Calculate the melting peak of the thermal analysis standard substance based on the DSC curve. Compare the error between the calculated results and the actual values. If the error is significant, recalibration is required.