Agilent Technologies 5977B Series Operating Manual page 27

• If a power failure occurs while the GC/MSD system is unattended, even if
When using hydrogencheck the system for leaks to prevent possible fire and
explosion hazards based on local Environmental Health and Safety (EHS)
requirements. Always check for leaks after changing a tank or servicing the
gas lines. Ensure the foreline pump exhaust and GC injection port vents are
both vented into a fume hood.
5977B Series MSD Operating Manual
the system has restarted by itself:
1 Immediately turn off the hydrogen at its source.
2 Turn off the GC.
3 Turn off the MSD, and allow it to cool for 1 hour.
4 Eliminate all potential sources of ignition in the room.
5 Open the vacuum manifold of the MSD to atmosphere.
6 Wait at least 10 minutes to allow any hydrogen to dissipate.
7 Start up the GC and MSD as normal.
Introduction 1
27