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nitrogen gas generator
3.2 start-up procedure
A visual inspection of the installation should be carried out ensuring all connections to and from the nitrogen generator
are secure and there is no visible damage to any components.
• Ensure that all isolation valves to and from the nitrogen generator are fully closed before operating.
• Switch on the power to the generator, the control system will carry out an initialization procedure.
• Slowly open the compressed air inlet isolation valve until fully open and check for leaks.
•
Locate the ‘START’ button in the bottom right of the HMI screen and hold down for 3 seconds, the generator will begin
it’s start-up procedure.
• Once the generator has completed its start-up procedure the compressed air inlet symbol will turn from amber to blue,
at this point slowly open the inlet isolation valve of the buffer vessel.
• Once the buffer vessel is within 0.5 barg (7.2 psig) of the compressed air inlet pressure, slowly open the outlet isolation
valve of the buffer vessel until fully open. Check all connections to and from the buffer vessel for any leaks as this could
affect nitrogen purity.
• Slowly open the nitrogen outlet isolation valve until fully open.
• If the generator is working correctly, the nitrogen outlet button and O2 symbol will turn green to show the purity is within
specification and the generator is producing gas. If the generator develops a fault it will raise an alarm and indicate what
has caused the alarm by turning the relevant symbol red.
3.3 shutdown procedure
• Fully close the nitrogen outlet isolation valve.
•
Locate the ‘STOP’ button in the bottom right of the HMI screen and hold down for 3 seconds, the generator will begin it’s
shutdown procedure. At this point the generator will complete it’s half cycle and then exhaust both columns until fully
de-pressurized.
• The generator will remain in standby until manually re-started. When the generator is in standby mode all symbols will
revert to their grey color to symbolize no activity within the system.