Chapter 1 Introduction - Thermo Scientific Omni FTIR Multi Gas CEMS Instruction Manual

Chapter 1
Introduction
The Thermo Scientific™ Omni FTIR Multi Gas CEMS is a continuous
multi-component gas monitoring system that contains the Thermo
Scientific Antaris IGS Gas Analyzer. The system is designed to help users
meet 40 CFR Part 60/63 Standards and EPA performance specifications
for gases such as HCl. The system is capable of simultaneously monitoring
at least 10 gases, using an advanced software platform to calibrate and
analyze concentrations with high precision. The system is manufactured in
a stringent ISO 9000 environment using manufacturing tests to ensure
system-to-system matching and reliability of operation.
The Antaris IGS uses a precise component layout with permanently aligned
optics to minimize spectrometer variability. The system conducts high-
speed data acquisition at high spectral resolution for real-time gas analysis.
Using a Michelson interferometer within the Antaris IGS, the Omni FTIR
Multi Gas CEMS continually monitors itself and provides "real-time"
automatic optimization of the optical signal. The interferometer, designed
with dynamic alignment, provides high resolution line shapes, superior
long and short term stability, and high speed/high resolution data
collection. This combination of speed and performance provides a system
capable of collecting data at 1 scan per every 4 seconds at 0.5 cm-1
resolution, ideal for detailed analysis of rapidly changing complex gas
mixtures. With no instrumental variation introduced into spectral
collection or calibrations, method transferability is ensured. In addition,
method maintenance is virtually eliminated allowing uninterrupted
operation and analysis.
The Omni FTIR CEMS uses the hot-wet extractive measurement
technique. The sample handling system consists of a direct extractive
probe, heated sample line (not included with the system), pump assembly,
hydrator and purge gas generator. The probe extracts and conditions a
continuous sample from a stack or duct for transport to the Antaris IGS.
The entire sample stream, from the probe stinger to the analysis bench, is
maintained at a temperature of 190 °C to prevent sample loss or
condensation. The Omni FTIR Multi Gas CEMS has the unique ability to
switch to a Flowback mode that purges the sample stream all the way from
the analyzer through the sample line to the tip of the probe. This feature
enables clean and continuous operation of the system and eliminates the
likelihood of sample line contamination.
Thermo Fisher Scientific Omni FTIR Multi Gas CEMS Instruction Manual 1-1