Closed cup flash point tester in the national standard conditions, the specimen into the test cup, the test cup with test oil heating, the resulting petroleum vapor and the surrounding air to form a coagulation of synthetic gas in flame contact when the flash fire occurs at a low temperature as the flash point. Flash point meter computer according to the collected temperature changes in the mouth issued instructions to control the heater, so that the test oil temperature according to a certain rate of rise, scanning cycle, ignition time, differential detection, etc. are implemented automatically controlled, when the flash fire is measured, the computer system to stop data collection, display the flash fire temperature and print.

Flash point meter, used to analyze and test the petroleum products in the specified conditions, heated to its vapor and flame contact when the instantaneous flash fire of the low temperature of the instrument. Called "Detector, Analyzer, Analyzer and Detector", can be divided into open flash point meter and closed flash point meter.
The instrument must use a standard socket with good grounding protection; When the instrument is turned on, in order to protect the compressor, the instrument has a delay protection device, not a fault; When the instrument is finished using, first turn off all function switches, and then turn off the main power switch; It is strictly forbidden to turn on the cooling or heating system when there is no water in the water tank.