Agilent Technologies 5977B Series Operating Manual page 92

4 Operating in EI Mode
Never open the vent valve or shut down the vacuum pumps without first closing the
WA R N I N G
shutoff valves for all hydrogen flows to the analyzer. This includes hydrogen carrier
gas and hydrogen for the JetClean system.
Never vent the MSD by allowing air in through either end of the foreline hose. Use the
C A U T I O N
vent valve or remove the column nut and column.
Do not vent while the turbo pump is still spinning at more than 50%.
Do not exceed the maximum recommended total gas flow. (See
92
Table 3 on page 18.)
5977B Series MSD Operating Manual
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