The working principle of the automatically closed flash point tester is to realize the full automation of the sample test process by automatically heating up, igniting and accurately locking the flash point value. In order to have a deeper understanding of the working principle and operation process of the automatic closed flash point tester, the following is a detailed step breakdown and description:
1. Temperature control:
· Heating according to the temperature curve specified by the standard method.
· The instrument adopts an advanced adaptive PID control algorithm to automatically adjust the temperature curve to ensure the accuracy and efficiency of temperature control.
2. Sample test:
· Add the sample to be measured into the closed flash point cup, and note that the liquid level in the cup should not exceed the scale line.
· Place the closed-mouth flash point cup containing the sample in the heating box and start the heating process.
3. Automatic detection:
· Real-time sample temperature monitoring via built-in temperature sensor.
· When the sample temperature is close to the expected flash point, the instrument automatically ignites and continuously monitors whether there is a flash fire phenomenon.
4. Result lock:
· Once a flash fire is detected, the instrument automatically locks the flash point value immediately, and closes the air valve to stop heating.
· The results are displayed directly on the LCD screen and can be automatically printed.
5. Safety control:
· If the temperature exceeds the value, the instrument will automatically stop heating and send an alarm signal.
· Built-in atmospheric pressure sensor automatically corrects test results to ensure accurate testing at high altitudes.
6. Cooling function:
· After the test is completed, the instrument can automatically cool the heater for the next test.
7. Data recording:
· The instrument can store up to 255 time-stamped history records.
Centennial calendar clock with temperature compensation can automatically record the measured date and time, even in the state of power failure can run for more than 10 years.