Thermo Scientific ISQ 7000 Hardware Manual page 295

Thermo Scientific
7. Remove the electrometer board to reveal the anode feedthrough.
Figure 284. Removing the Anode Feedthrough, O-ring, Standoff and Screws
Anode Feedthrough
and O-ring
Screws
8. Use a T10 Torxhead screwdriver to remove the two screws and 5.5 mm nut driver to
remove the standoff located on the outer rim of the anode feedthrough, but leave the
center pin of the standoff intact. The standoff serves as the ground for the electrometer
board. The center pin is the signal path for the electrons generated in the electron
multiplier going into the electrometer.
3
Advanced Maintenance
Replacing Components of the Electron Multiplier
Standoff
ISQ 7000 Hardware Manual 267