Agilent Technologies MSD 5977B Series Operating Manual page 141

5 Operating in EI Mode
To Pumpdown the MSD
10 In the Instrument Control view, from the Instrument menu, select MS
Figure 48
11 Click Pump Down in the Vacuum Control dialog, and follow the system
Do not turn on any GC heated zones until carrier gas flow is on. Heating a
C AU T I O N
column with no carrier gas flow will damage the column.
12 When prompted, turn on the GC/MSD interface heater and GC oven. Click OK
13 After the message Okay to run appears, wait 2 hours for the MSD to reach
14 If using the JetClean system, prepare the hydrogen system for use. Refer to
5977B Series MSD Operating Manual
Vacuum Control to display the Vacuum Control dialog. (See
Vacuum Control dialog
prompts.
when you have done so.
The software will turn on the ion source and mass filter (quad) heaters. The
temperature setpoints are stored in the current autotune (*.u) file.
thermal equilibrium. Data acquired before the MSD has reached thermal
equilibrium may not be reproducible.
the JetClean system Operating manual for warnings regarding hydrogen
safety.
Figure 48.)
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