Start-up of low power nitrogen generator and nitrogen making machine:
1. Check that the power supply of the low power nitrogen generator and nitrogen making machine is normal.
2. Check that the air compressor and the refrigerating machine are running normally, the pressure of the air storage tank of the nitrogen generator is normal, the inlet isolation valve is open, and the outlet isolation valve is open.
3. Check that the outlet flow regulating valve remains in the "fully closed" position.
4. Check the nitrogen purity requirements, generally set to 99.9%. (When the nitrogen purity does not meet the requirements, the nitrogen vent valve will be automatically opened to discharge unqualified nitrogen gas, until the purity is qualified, the nitrogen vent valve will be automatically closed, the nitrogen outlet valve will be opened, and qualified nitrogen will be delivered).
5. Start the low power nitrogen generator and nitrogen making machine.
6. Adjust the outlet nitrogen pressure through the pressure regulating valve.
7. Slowly open the outlet flow control valve to make the gas production meet the gas consumption. The real-time gas production can be viewed through the operation monitoring screen.

Shutdown of low power nitrogen generator and nitrogen making machine:
1. Close the outlet flow regulating valve.
2. Shut down the nitrogen generator. Check that the monitor screen "Operation Status" is dimmed.
3. If necessary, power off the nitrogen generator and open the corresponding blowdown valve to relieve pressure.