Model 9320 pages

WESTERN RESEARCH

®

PROCESS INSTRUMENTS

Model 932 Multi-Gas Analyzer
Benefits
►t Measures up to five species
simultaneously
►t Optional detectors available
t (IR or thermal conductivity)
►t Sample return to process (with
HAG probe option)
►t Minimal sample conditioning
►t Dual-beam, dual-wavelength
design
►t Class I, Division 1 and ATEX II 2 G
Hazardous Area Rating

The Need
The control of many petrochemical
and chemical processes requires
monitoring of multiple chemical
species within your process’s
feed, reaction, or effluent gases.
Unfortunately, multiple technologies
are often required to monitor all
of the required species. AMETEK
Process Instruments has responded
to industry’s need for a rugged,
multi-component, multi-technology
gas analyzer in an explosion-proof
package.
t The Western Research® Model
932 is designed for a variety of gas
monitoring and process control
applications. Whether it’s reliable H2S
and NH3 analysis for feed-forward
control of modern SRU plants,
monitoring of H2S and COS for the
control of amine-based SRU tail
gas treating plants, or any one of
hundreds of other applications, the
932 analyzer is the best choice for
reliable, field-proven, and rugged online analysis.
t For those applications where
sample condensation may occur,
the Model 932 analyzer system is
available with a heated cell option.
The fully integrated AMETEK
Process Instruments heated cell
ensures reliable dew point control
without running the risk of plugging,
contaminating, or flooding the
analyzer.

t A flexible sampling system, which
includes an optional integrated
electrically heated acid gas sampling
probe (HAG) for safe, reliable acid
gas sampling, as well as optional onboard sample switching hardware and
software, makes the Model 932 one
of the most flexible, explosion-proof,
multi-component analyzers available
on the market.
t Many process applications require
the detection of species which do
not absorb ultraviolet light. The
Model 931/932 can incorporate two
infrared measurements and a thermal
conductivity sensor to allow for the
measurement of additional species
such as hydrogen, hydrocarbons,
carbon dioxide and/or water vapor.
These sensors are incorporated
with the UV photometer and utilize
the same proven flow and sample
system. Typical applications include
the measurement of hydrogen and
H2S (and optionally COS and CS2) in
amine-based tail gas treaters, SO2
breakthrough form cobalt molybdate
catalyst beds, as well as other sulfur
recovery plant applications such as
feed forward control by measuring
hydrcarbons, H2S and or carbon
dioxide in acid plant inlet gas.
t No matter what your
needs are, this flexible, lowmaintenance analyzer design
will be the answer to many
of your complex process
control requirements.

that is better than 0.02nm. This
high resolution design enables
unparalleled linearity over a
wide dynamic range (less than
1% deviation over 3 to 4 orders
of magnitude), which leads to
simple, robust data analysis.
Cathode construction of the UV lamp
determines the wavelengths available
for analysis, making it possible to
configure the Model 932 to measure
many components that absorb UV/VIS
energy.
t The Model 932 uses only AMETEKengineered, purpose-built electronics
to ensure reliable performance
under the harsh environmental
conditions common in chemical
and petrochemical facilities. These
electronics provide concentration
calculations, data processing,
temperature control, calibration and
sophisticated self-diagnostics.

Applications
►t Amine-based tail gas treating
t
(H2S/COS + optional H2)
►t SRU feed gas analysis
►t Chemical process applications

The Measurement
The Western Research®
Model 932 uses AMETEK’s
proprietary high-resolution UV
technology in a dual-beam,
dual-wavelength configuration
with pulsed UV lamps to
ensure optimal performance
with low noise and minimal
baseline and span drift.
t Analysis linearity and
measurement stability is
maximized by using highintensity, low-energy hollow
cathode UV source lamps
that provide a resolution

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