Maintenance
3. Open the gas cylinder valve. While connecting the charge line to the valve on one of the
adapter fittings, thoroughly purge the charge line from the regulator. It is important to
remove all air contaminants to prevent them from entering the gas line.
4. Adjust the gas cylinder regulator to 690 kPa (100 psig). Open the valve on the adapter
fitting and charge the gas line to 690 kPa (100 psig).
5. Close the valve on the helium gas cylinder (not on the regulator).
6. Open the vent valve. Watch the regulator’s pressure gauge. When the pressure falls to
35 – 70 kPa (5 – 10 psig), close the vent valve. Open the gas cylinder valve to increase the
pressure to 690 kPa (100 psig). Close the gas cylinder valve.
7. Repeat step 6 five (5) times.
8. Close the valve on the adapter fitting used for charging. Open the gas cylinder valve.
Adjust the pressure regulator to the equalization pressure of the system. Refer to the
Specifications section in the System manual.
9. Open the valve on the adapter fitting and charge the gas line to the equalization pressure.
10. Close the valve on the adapter fitting. Close the gas cylinder valve. Disconnect the charge
line from the adapter fitting. Store the charge line to keep it clean.
11. Remove the adapter fittings.
This completes the procedure for gas cleanup of a gas line.
To Next Page
Loading...
