Revision 14
16 August 02, 2019
Section 2 Analyzer Components
2.1 Overview
The ProTech903 H
2
S and Total Sulfur Analyzer is an integrated system designed to monitor
the concentration of H
2
S in a gaseous stream using the Lead Acetate tape method described
in Section 1. An overview of the major components of the analyzer is presented in Figure 2-1.
The total sulfur version of the ProTech903 includes the total sulfur furnace (Section 2.9).
An external sample conditioning system is available as an option (Section 2.10).
Figure 2-1: Schematic of ProTech903 Flow Path
The system includes the following major components:
• Motherboard (Section 2.2)
• Intrinsically Safe Barrier Board (Class I, Division 1 models only) (Section 2.3)
• Display Board, Keyboard, LED’s (Section 2.4)
• Chassis (Section 2.5)
• Tape Transport System (Section 2.6)
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