HP 5973 MSD, Hardware Manual

Page: 98 / 122

98
Maintenance
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To refill the CI calibrant vial
Materials needed:
PFDTD calibrant (8500-8130)
1 Set the reagent gas flow to Gas Off
2 Vent the MSD
3 Remove the capillary column from the GC/MSD interface
4
Pull the MSD away from the GC
5 Loosen the nut holding the vial in place
6 Remove the calibrant vial
7 Fill the vial to within 0.5 cm of the top with fresh PFDTD calibrant
(8500-8130).
8 Replace the vial and tighten the nut.
9 Reposition the MSD next to the GC.
10 Reinstall the capillary column.
11 Pump down the MSD. See page 40.
12 Purge the calibration valve. See page 99.
C A U T I O N Do
not
rinse the vial with any solvents.
Never
expose the inside of the vial to chlorinated
solvents or isopropyl alcohol or water — this will result in severe loss of CI sensitivity.
C A U T I O N After removing the calibrant vial, you
must
purge the calibration valve. Failure to do so
will result in severe contamination of the ion source and damage to the electron multiplier