5
Operating in EI Mode
To Pumpdown the MSD
5977B Series MSD Operating Manual
139
To Pumpdown the MSD
You can also use the 8890 or 7890B GC control panel to perform this task. (See
also
“Operating the MSD from the 7890 GC Control Panel”
Procedure
1
Remove the analyzer window cover and open the analyzer cover. (See
2
Verify that the foreline pump inlet valve is open.
3
Verify that the vent valve is open by turning it clockwise until closed. (See
WARNING
Make sure your MSD meets all the conditions listed in the introduction to this
chapter before starting up and pumping down the MSD. (See
on page 113.) Failure to do so can result in personal injury.
WARNING
Never open the vent valve without first closing the hydrogen supply line to all
possible sources of hydrogen entry to the analyzer. This requires closing the
hydrogen shutoff valve to the carrier gas flow module and the shutoff valve to
the JetClean system supply if either of these hydrogen sources exist on the
instrument. Read
on page 24 before operating the MSD
with hydrogen gas.
CAUTION
Agilent does not recommend using hydrogen as a carrier gas on systems
equipped with an IDP3 foreline pump.
WARNING
Do not open the vent valve without verifying that the JetClean system
hydrogen supply shutoff valve is closed if the optional JetClean system is
installed. Refer to the JetClean system Operating manual for warnings
regarding hydrogen safety when the hydrogen shutoff valve is open.
Summary of Contents for 5977B CI MSD
Page 1: ...Agilent 5977B Series MSD Operating Manual ...
Page 12: ...12 5977B Series MSD Operating Manual ...
Page 34: ...1 Introduction To Replace the Primary Fuses 34 5977B Series MSD Operating Manual ...
Page 142: ...5 Operating in EI Mode To Pumpdown the MSD 142 5977B Series MSD Operating Manual ...
Page 252: ...8 CI Maintenance To Install the CI Source 252 5977B Series MSD Operating Manual ...
Page 253: ......