Asylum Research cypher - 14 Gas Handling and Leak Testing; Gas Handling Overview

Ch. 14. Gas Handling and Leak Testing
14. Gas Handling and Leak Testing
CHAPTER REV. 1702, DATED 10/21/2013, 22:07. USER GUIDE REV. 1714, DATED 10/25/2013, 20:36.
Chapter Contents
14.1 Gas Handling Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
14.2 Manifold Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
14.2.1 Scanner Faceplate Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
14.2.2 Manifold Cell-side connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
14.2.3 Manifold Lab-side connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
14.1. Gas Handling Overview
Figure 14.1 on page 174 shows the front of the scanner with the cover removed (see 14.2.1 to accom-
plish this). The two gas lines attached to the sample cell body are routed via tubing guides to the bottom
left of the scanner. One of the lines branches off to a pressure sensor and then passes through a com-
puter controlled valve. Depending on the application, this valve may be open or closed, and it may be
manually or computer controlled.
DRAFT
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