Agilent Technologies 5977C Series User Manual

4 Operating in EI Mode
To Monitor High Vacuum Pressure
98 5977C GC/MSD Operating Manual
To Monitor High Vacuum Pressure
Pressure monitoring requires an optional G3397B Micro-Ion vacuum gauge.
Procedure
1 Ensure that the hydrogen supply shutoff valves are closed if you are using
hydrogen as a carrier gas or for the JetClean system.
2 Start up and pumpdown the MSD. (See “To Pumpdown the MSD” on
page 112.)
3 Select Instrument > Edit Tune Parameters to display the Manual Tune dialog.
4 Select the Values tab to view the HiVac reading. (See Figure 30.)
WARNING
If you are using hydrogen as a carrier gas or for the JetClean system, the
hydrogen 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 “Hydrogen Safety” on page 22 before operating the MSD
with hydrogen gas.
Figure 30 Manual Tune Values tab HiVac reading

Agilent Technologies 5977C Series Specifications

General

Brand	Agilent Technologies
Model	5977C Series
Category	Security Sensors
Language	English