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5
Operating in EI Mode
Pumping Down
7000/7010 Series TQ GC/MS Operating Manual
103
Pumping Down
The data system helps you pumpdown the MS. The process is primarily
automated. After you turn on the MS by pushing the
On/Off
switch, close the
analyzer door, and close the vent valve once you hear hissing (while pressing on
both analyzer side plates), the MS pumps down by itself. The Agilent
MassHunter GC/MS Acquisition software monitors and displays system status
during pumpdown. When the pressure is low enough, the program turns on the
ion source and mass filter heaters and prompts you to turn on the GC/MS
interface heater. The MS will shut down if it cannot pumpdown correctly.
Using the MS monitors, the data system can display:
•
Motor speed for turbo pump MS
•
Analyzer chamber pressure (vacuum)
•
Foreline pump pressure
Controlling Temperatures
MS temperatures are controlled through the data system. The MS has
independent heaters and temperature sensors for the ion source, the MS1 mass
filter, and the MS2 mass filter. You can adjust the setpoints and view these
temperatures from the data system.
Normally, the GC/MS interface heater is powered and controlled by the Thermal
Aux #2 heated zone of the GC. The GC/MS interface temperature can be set and
monitored from the data system or from the GC.
CAUTION
When hydrogen is used as a carrier gas or during the JetClean system acquire
and clean mode, do not use helium in the collision cell.
Содержание 7010 Series
Страница 1: ...Agilent 7000 7010 Series Triple Quadrupole Operating Manual ...
Страница 12: ...12 7000 7010 Series TQ GC MS Operating Manual To Install a CI Source Filament 240 ...
Страница 128: ...5 Operating in EI Mode To Save a Method on the 7890 GC 128 7000 7010 Series TQ GC MS Operating Manual ...
Страница 204: ...7 General Maintenance To Close the Rear Analyzer Chamber 204 7000 7010 Series TQ GC MS Operating Manual ...
Страница 241: ......
Страница 242: ...www agilent com Agilent Technologies Inc 2019 First edition January 2019 G7003 90050 G7003 90050 ...