Connecting with the System & Vacuum Pumping System
Before connecting to the system, please check whether the pressure gauge pointer is in the zero position, otherwise open the table adjusting the screw to the zero position.
- Connecting with the System
- First close the low pressure valve, high pressure valve;
- After interface connecting with blue tube(Iow voltage fast connector), and then locking to system low pressure;
- After interface connecting with the red tube(low voltage fast connector), and then locking to the system high pressure.
- interface connecting with yellow tube and vacuum pump.
(Note: this step must be carried out under the system pressure, otherwise it should be advanced relief pressure).
- Upon completing the above, then open the vacuum pump;
- Open low pressure valve(blue),high pressure valve(red),and (open the high and) low pressure fast interface)the system begins to draw a vacuum;
- After a certain period of time(10-30min), check whether the system is completely vacuum, otherwise the vacuum should be repaired and re evacuation;
- Close the high and low pressure valves at the same time, and close the vacuum pump eventually.