Revision 1 16 9/10/2019
Section 2 Analyzer Components
2.1 Overview
The 903W Phosgene analyzer is an integrated system designed to monitor the concentration
of phosgene in a gaseous stream using the method described in Section 1. An overview of
the major components of the analyzer is presented in Figure 2-1.
Figure 2-1: Schematic of Flow Path
The phosgene application does not use the bubbler shown in Figure 2-1.
The system includes the following major components:
• Motherboard (Section 2.2)
• Display Board, Keyboard, LED’s (Section 2.3)
• Chassis (Section 2.4)
• Tape Transport System (Section 2.5)
• Sample Chamber Assembly (Section 2.6)
• Sample Flow Related Components (Section 2.7)
An external sample conditioning system is available as an option (Section 2.9).
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