Thermo Scientific ISQ 7000 Hardware Manual page 109

Thermo Scientific
Tip At this point, you may want to remove the top cover and look at the position of the
ion source cartridge through the manifold cover. There should be a small gap between the
RF Lens insulator and the inside end of the sleeve. This helps to prevent thermal
expansion of the sleeve from moving the optics.
6. Close the manifold door and slightly tighten the vent valve knob by turning it one half
turn clockwise.
7. Flip the power switch on the back of the ISQ 7000 instrument upwards to power on the
instrument. This will help you achieve good vacuum.
8. Center the manifold door so that the screw holes are aligned with the manifold. And
insert the four manifold screws, tightening each finger-tight such that the o-ring is
engaged on every surface.
9. Tighten the four manifold screws using a T20 Torxhead screwdriver.
10. Tighten the vent valve knob completely by turning it approximately one turn clockwise.
11. Close the front door of the instrument.
12. For optimal performance, wait at least fifteen minutes for the ion source to heat up to the
same temperature as the inside of the instrument. Otherwise, the masses or intensities
may be different.
.
IMPORTANT When inserting a cold ion source cartridge such as after cleaning, the ion
source and lens stack will expand as the source cartridge heats, often pushing the ion
volume and lenses away from the rear of the instrument where they are firmly held by the
RF Lens spring contacts. Inserting the source with the gap shown in the tip above can help
prevent contact issues.
1
Performing Routine Maintenance
Cleaning the Ion Source Cartridge
Sleeve
Gap
RF Lens Insulator
ISQ 7000 Hardware Manual 81