Chemical Engineering December 2014 - 28

General Monitors
Focus on
Analyzers
Analyze H2S content in liquids
with this benchtop device
The Model 205L (photo) is a benchtop
analyzer used to quantify hydrogen
sulfide (H2S) in liquids, including
crude oil, fuel oil, naphtha,
water, marine diesel, gasoline and
other liquids. Specific to H2S, the
205L has no issues with interference
from other analytes. The device's
detection technology is based
on chemically specific density
changes. Typical analysis time is
15-25 min, with only one push-button
required for operation. No field
calibrations are required. The analyzer
provides quantitative results
in parts-per-million (ppm) and
parts-per-billion (ppb), up to saturation
levels. Featuring an exclusive
Sample Transfer Stripper filter,
any mists or liquid carryovers
are blocked during analysis with
the 205L, reducing required maintenance
time. - Analytical Systems
International Keco, Houston
www.liquidgasanalyzers.com
Detect even small gas leaks
with this ultrasonic detector
The Gassonic Observer-i ultrasonic
gas-leak detector (photo) is
designed with artificial neural
network (ANN) intelligence, allowing
it to fully analyze the sound
spectrum down to 12 kHz, while
distinguishing between unwanted
acoustic background noise and actual
hazardous gas leaks. The detector's
broad leak-detection range
increases sensitivity to smaller gas
leaks without interference or false
alarms. Providing a detection distance
of up to 28 m, the Observeri
provides ample coverage in both
low- and high-noise areas. Because
it is adaptive, the detector requires
no alarm setpoints to be configured
or adjusted. A self-test function
checks the integrity of the electrical
components and microphone
every 15 min to ensure proper
continuous operations. - General
Monitors, Lake Forest, Calif.
www.generalmonitors.com
Analytical Systems International Keco
A hydrocarbon analyzer with
CO- and CO2- detection options
The Series 2300 Total Hydrocarbon
Analyzer (photo) is a microprocessor-controlled
instrument designed
to continuously measure
the concentration of hydrocarbons
in gas. By
utilizing an optional catalytic
methanizer with the
Series 2300, carbon monoxide
(CO) and carbon
dioxide (CO2) can also be
analyzed. The Series 2300
employs a flame-ionization
detector, where ionized carbon
atoms are produced when burned
in a hydrogen flame. The ionized
atoms are detected and displayed
as a concentration in ppm or ppb.
With a high-resolution graphical
touchscreen, the instrument features
auto-ranging from 0 to 20,000
ppm, as well as auto-zero and autocalibration
functions. With programmable
relays for concentration
alarms, events and diagnostics, as
well as a full array of optional output
capabilities, the instrument
provides longterm stability and
performance in many applications,
including: gas-purity certification;
inert-gas contaminant analysis;
carbon-bed breakthrough detection;
and ambient-air and emissions
monitoring. - GOW-MAC Instrument
Co., Lehigh Valley, Pa.
www.gow-mac.com
Wide-range-capable
thermomechanical analyzers
The TMA/SDTA 1 thermomechanical
analyzer (photo) is available in
four versions to accommodate different
furnace sizes and a wide temperature
range. The instrument is
optimized for measurements from
-150 to 1,600°C. Both small and
28 ChemiCal engineering www.Chemengonline.Com DeCemBer 2014
GOW-MAC Instrument
Mettler Toledo
large samples (up to 20
mm) can be analyzed with
0.5-nm resolution without
the need for range switching.
A touch-sensitive color
terminal for the TMA/
SDTA 1 model presents
clear and precise information
that can be seen easily,
even from a distance. All force
and length calibration routines are
controlled via the terminal, and the
touchscreen can be used to control
the determination of sample length
and also to initiate the transfer of
data to the software, eliminating
possible transcription errors. The
instrument employs a patented calculation
model to determine the difference
between the measured sample
temperature and a reference
temperature. - Mettler Toledo AG,
Greifensee, Switzerland
www.mt.com
This flashpoint analyzer has
enhanced user-interface options
The Herzog OptiFlash Pensky-Martens
instrument (photo, p. 29) is
capable of detecting flashpoints up
to 400°C. The OptiFlash complies
with global safety standards, and
features an enhanced user interface
and built-in automation, simplifying
setup - users can now start a
test without taking time for manual
tasks, such as installing flashpoint
and temperature sensors. The instrument
is also designed for simplified
cleaning and disassembly,
making it more convenient to analyze
highly viscous samples. The
Note: For more information, circle the 3-digit number
on p. 60, or use the website designation.
http://www.liquidgasanalyzers.com http://www.mt.com http://www.gow-mac.com http://www.generalmonitors.com http://www.Chemengonline.Com
Chemical Engineering December 2014

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