Thread Content
Operation of the low-temperature closed-cup flash point apparatus: 1. Turn on the cooling circulation system. 2. Cover the cup with its lid. 3. Turn on the gas adjustment knob, ignite the test flame, and adjust it to a spherical shape with a diameter of 3.5±0.5 mm. 4. Once the automatic low-temperature closed-cup flash point apparatus reaches the preset temperature and emits an alarm, use a dry and clean syringe to draw up 2 ml of the sample, and quickly inject it into the sample chamber through the feeding port; be careful to ensure that no loss of the sample occurs ； When the syringe is pulled out, the instrument automatically starts timing. 5. After the automatic low-temperature closed-cup flash point tester has completed a 60-second automatic countdown, the slide plate must be opened immediately; the flame nozzle is then inserted and removed to carry out one ignition test, which takes 2.5±0.5 seconds. Meanwhile, it is necessary to observe whether a flash occurs during the period from when the slide plate is opened until it is closed. 6. If no flash fire occurs, repeat the above process as required by the test method until a flash fire is observed ； After a flash fire occurs, the instrument automatically detects the results and prints them out. This experiment is now complete. 1. Turn on the power switch, and the screen will display the message “Welcome to the fully automatic closed-cup flash point tester”. 2. Press the historical data key, and the instrument will display the results of each measurement, automatically storing 120 results. And it can be printed and deleted at any time. 3. Press the parameter setting key to set the preset temperature, label, atmospheric pressure, print switch, and then the temperature. 4. Press the sample testing button to enter the main operating interface of the instrument; at this point, the water supply and drainage connections must be properly made and water flow must be ensured, otherwise the instrument will not cool down. The air inlet is connected to household liquefied gas. (Note ； For samples at temperatures above room temperature, it is not necessary to connect the inlet and outlet at room temperature; however, this connection is required when the temperature is below room temperature. 5. Temperature calibration (must be carried out under the guidance of the Delit manufacturer); the instrument is already calibrated upon leaving the factory. 6. The instrument’s self-check function allows for the testing of its own detection capabilities