Recruitment of dripping glue factory

There is something wrong with your system. It takes you 7 to 8 minutes to reach the vacuum state indicated by the pressure gauge, which is about -0.0 15. Either the container is leaking or there is a big problem with the system.

To tell you clearly, there must be something wrong. There is no difference between vacuuming and not vacuuming.

In addition, please read the instructions carefully. The capacity of your container does not match the pumping speed. The pump should be 2X-30A, but the pumping speed should be -0. 1 anyway.

Formula: pumping speed = (volume *ln (initial pressure/target pressure))/time

If you want to pump to -0. 1, just set the target pressure to 1000Pa, and the efficiency of the rotary vane pump above 1000Pa is 100%, and forget the coefficient.

Let's use another formula to calculate the time, from the atmosphere to -0. 1, t =1000 * 4.6/15 = 306.66s = 5.11min.

Only 5 points, even 80% efficiency is enough. So, there must be something wrong with the system. Either the pressure gauge is broken.