The fully automatic micro flash point tester is mainly used to measure the flash point temperature of liquid samples. Flash point refers to the lowest temperature at which a liquid can produce flash ignition when ignited by an external source of fire under specific conditions. The fully automatic micro flash point tester heats the sample to form a combustible mixture of vapor and air on its surface. When this mixture encounters an ignition source, it will produce a flash or flame, and the temperature at this time is the flash point.
The working principle of the fully automatic micro flash point tester is based on the volatility and flammability of liquids. When a liquid sample is stimulated by a heat source, volatile components evaporate to form flammable gases. When the gas concentration reaches a certain level, it can produce a flash or flame when it encounters an ignition source, and this temperature is called the flash point. The instrument greatly improves the accuracy and efficiency of testing through functions such as automatic ignition, automatic detection of flash point, automatic display and printing of test results.
The fully automatic micro flash point analyzer usually operates based on the closed cup method or the open cup method. The closed cup method is to place the sample in a closed container, gradually increase the temperature, and the volatile molecules of the liquid sample form a vapor with increasing concentration in the closed container. The ignition source is used to ignite it, and the flash point temperature is determined by observing whether an open flame or explosion sound occurs. The cup opening rule is to place the sample in an open container and continuously apply a source of ignition as the temperature rises until an open flame or flash is observed. At this point, the measured temperature is the flash point temperature of the sample. The instrument combines temperature control, ignition, and observation systems to achieve automation of the entire testing process.
Operation steps and precautions
Sample preparation: Load the test sample into the testing container and ensure that the container is intact and leak free.
Instrument calibration: Use standard samples to calibrate the instrument, adjust its sensitivity and stability.
Testing process: Inject the sample into the test cup and heat it according to the standard procedure. When the evaporated mixture of oil, gas, and air in the sample ignites with a flame, the flash point of the sample is recorded as the lowest temperature at that time.
Result recording and analysis: The instrument will automatically display and print the test results. Users need to record in detail the various data and results during the calibration process for verification.