When you remove the ion transfer tube, the vent prevent ball in the API source interface drops into place to stop air from entering the vacuum manifold. With this mechanism, you can remove the ion transfer tube for cleaning or replacement without venting the system.

CAUTION

Hot surface

Allow the ion transfer tube to cool to room temperature before you remove it.

Figure Vent prevent ball positions
12
No.DescriptionNo.Description

1

Ion transfer tube installed with vent prevent ball elevated

2

Ion transfer tube removed with vent prevent ball dropped