Emerson Rosemount CT5400, Installation, Operation And Maintenance Manual

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Complete Rosemount CT5400 Gas Analysis System Figure 1-2:
A. Gas handling system
B. Sample supply line
C. Sample return (exhaust) line
D. Rosemount CT5400 Gas Analyzer
E. Electrical power
F. Measurement data
G. Control center
The analyzer contains an optical system with multiple lasers and a series of optical
components that provide an optical path, a heated multi-pass analysis cell, and sample
and outlet ports that can be connected to a gas handling system, and control and analysis
electronics. The number of lasers installed depends upon customer requirements. The
complete system operates from a 240 Vac 50 Hz supply.
Gas concentrations are measured using mid-infrared optical absorption spectroscopy. The
light sources are quantum cascade lasers (QCLs), which are operated to produce
wavelength sweeps that cover the absorption lines of the gases. The light from each laser
is routed through an optical path to the analysis cell, which provides measurement of low
concentrations of the subject gases. An external sample handling system conditions the
sample gas and draws it through the analysis cell. The light exits the multi-pass analysis cell
and is directed to a receiver in the analyzer. The variation in the intensity of light in the
vicinity of the absorption lines is measured, and the concentration is determined using a
comprehensive spectral fitting routine.
There is no sample conditioning provided within the analyzer; the sampled gas must be
brought within the parameters shown in
Section 1.9 before entering the analyzer. Detailed
characteristics of the analyzer are also given in Section 1.9 .
Main Items of the Rosemount CT5400 System Table 1-1:
Item Name or description Supplied by Part number Quantity Notes
1 Rosemount CT5400 Emerson CT5400 1
2 Rosemount CT5400 software
package, version 5.x.x Emerson N/A 1 Software is
embedded in
PC board.
Version de-
scribed in
manual
3 Gas handling system Customer Customer choice 1
Plan
Installation, Operations, and Maintenance Manual 3