Agilent Technologies Agilent 7890 Series Maintenance Manual page 280

14
Maintaining the NPD
C A U T I O N
C A U T I O N
280
This step exposes the interconnect spring. Be careful not to touch or
disfigure the spring while working on the FID. Any dirt or bending
will reduce the sensitivity of your detector.
Wear clean, lint-free gloves to prevent contamination of parts with
dirt and skin oils.
Remove the screws that secure the lid, and remove it. The
6
top metal C- ring and upper ceramic insulator may be
attached to the lid.
Remove the screws that secure the electrometer and the
7
interconnect.
Pull the electrometer away from the detector to free the
8
interconnect. Turn the electrometer to the right to obtain
working space. Be careful not to touch or bend the
spring. Be careful not to lose the EMI suppressor.
Spring
EMI suppressor
Maintaining Your GC