This equipment is to use negative pressure to detect the sample, the equipment uses a vacuum pump to generate negative pressure, the vacuum pump is a low-noise magnetic pump, and the vacuum pressure is adjusted by a pressure regulating valve and equipped with a vacuum gauge to display the pressureDuring the test, the vacuum valve is opened, the vacuum pipeline vacuums the sample, and another pressure gauge monitors the vacuum negative pressure of the sample, and times, when the sample loses pressure more than the specified value within the specified time, the equipment sends out an audible and visual alarm.
Technical parameters
1. Vacuum range: 0 to -85kpa 5 kpa (relative pressure);
2. Negative pressure monitoring: AP-C30W brand Keyence is selected for the meter head
3. Vacuum pump type: vane vacuum pump.
4. Buck time: 0-999s (configurable);
5. Buck pressure value: 0 to -85kpa 5 kpa (relative pressure);
6. Buck pressure holding time: 0-999s (configurable);
7. Pressure relief time: 0-999s (configurable);
8. Pressure relief value: 0 to -85kpa 5 kpa (relative pressure);
9. Pressure relief and holding time: 0-999s (configurable);
10. Circulating secondary material: 0-999 times.
11. Reporting type: when the sample does not meet the requirements, the sound and light alarm will be issued, and the alarm reason will be displayed on the screen (that is, the test will be alarmed in which program section);