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Operating in EI Mode
5975/5977 Series MSD Operating Manual
105
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Figure 30.
Vent valve knob
Vent valve knob
WARNING
If you are using hydrogen as a carrier gas, the carrier gas flow must be off
before turning off the MSD power. If the foreline pump is off, hydrogen will
accumulate in the MSD and an explosion may occur. Read
on page 19 before operating the MSD with hydrogen carrier gas.
CAUTION
Be sure the GC oven and the GC/MSD interface are cool before turning off
carrier gas flow to prevent damage to the column.