Agilent Technologies Agilent 7890 Series Maintenance Manual page 333

WA R N I N G
Maintaining Your GC
Place a new O- ring on the new frit and press it down
7
into the block.
Place the block on the module and tighten the screw
8
firmly.
Restore the gas supply.
9
When hydrogen is used, dangerously high flows are possible if
insufficient flow resistance is provided downstream of the supply
tube. Always use either the High (Blue dot) or Medium (Red dot)
frit with hydrogen.
After installing or replacing a frit, be sure to update the
PIDs used with your PCM. For more information, refer to the
7890 Series Advanced User
Maintaining the PCM
Guide.
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