Based on the collected temperature changes, the computer sends commands through the I/O port to control the heater, causing the test oil temperature to rise at a certain rate. It performs automatic control of scanning cycle, ignition time, differential detection, and implementation. When flash fire is detected, the computer system stops data collection, displays the flash temperature, and prints the recorded results, stops heating, closes the flame, and starts forced air cooling.
Under the conditions specified in the national standard, the instrument loads the sample into the test cup, heats the test cup containing the test oil, and the lowest temperature at which the mixed gas formed by the petroleum vapor and surrounding air flashes upon contact with the flame is taken as the flash point.
Technical indicators of BS303 Closed Cup Flash Point Automatic Tester:
Temperature measurement:
Range: Room temperature to 300°C
Repeatability: ≤2°C
Reproducibility: ≤±4°C
Resolution: 0.1°C
Accuracy: 0.5%
Ambient temperature: 10-40°C
Relative humidity: 85%
Supply voltage: AC220V 50Hz±5%
Basic parameters
Heating rate: Compliant with GB/T261-83 and GB/T261-2008 standards
Ignition method: Gas flame 3-4mm ignition
Power: Less than 300W
