Hardware manual

Maintenance 4

Agilent 7500 Series ICP-MS Hardware Manual 4-43

Replacing or Refitting the Concentric Nebulizer and the End Cap

1 Reinsert the nebulizer into the end cap.

Replace the two O- rings in the hole in the center of the end cap. Install the

nebulizer holder nut on to the end cap first. At this time, do not tighten it.

Insert the nebulizer through the nebulizer holder nut and then insert the

nebulizer into the O- rings by gently applying pressure and twisting the

nebulizer. Lubricating the nebulizer and O- rings with pure water helps the

nebulizer slide into the O- rings. Insert the nebulizer into the end cap until

the tip of the nebulizer is flush with the inside surface of the end cap.

Position the carrier gas arm of the nebulizer so that it points in the same

direction as the makeup gas fitting. Tighten the nebulizer holder nut so that

it is finger tight. The tip of the nebulizer should be positioned as shown in

the following figure.

Figure 54

2 Insert the spray chamber O- ring in the end cap.

Adjust the tip of the

nebulizer postion

to this surface.

Nebulizer

holder nu

CAUTION

Do not install the nebulizer together with the nebulizer holder nut to the end cap. This

may damage the screw of nebulizer holder nut.