Hardware manual

Maintenance 4
Agilent 7500 Series ICP-MS Hardware Manual 4-123
Figure 101 Expanded View of the Extraction Lens-Omega Lens Assembly (7500cs)
2 Using an Ohm meter, check for no continuity between the Skimmer Base
(ground), Extraction Lens, and Omega Lenses.
3 Insert the Extraction Lens- Omega Lens assembly into the instrument.
Hold the lens assembly vertically. Line the through hole near the rim of the
Skimmer Base with the guide pin on the interface assembly and insert the
assembly into the interface chamber.
4 Install the Extraction Lens- Omega Lens assembly into the instrument.
Using an Allen wrench, securely tighten the 3 screws that hold the Skimmer
Base. If the Extraction Lens- Omega Lens assembly is not securely installed
in the interface chamber, the \vacuum may not reach the required level in
analysis mode.
5 Install the Skimmer Cone and Sampling Cone.
For details on installing the Skimmer Cone and Sampling Cone, see
“Maintaining the Cones” on page 4- 66.
Skimmer Base screws (3)
Through Hole
Spacer
(lipped)
Spacer
(lipped)
Spacer
(lipped)
Spacer
(lipped)
Spacer
(no lip)
Omega Lens-cs
Lens Screws (2)
Omega Bias-cs
Omega Bias Guide Screw
Omega Bias Guide
Omega Bias Guide
Extraction Lens 2
Extraction Lens 1