Gases :: Topics :: ProcessOnline

Continuous emission monitoring
The requirement for continuous emission monitors has changed significantly over the last 10 years. This has been brought about by the increase in use of flue gas treatment systems, reducing the levels of pollutant to be monitored, and environmental agencies worldwide requiring smaller processes to be monitored.
Flowmeter selection for improved gas flow measurements: a comparison of DP and thermal dispersion technologies
As the costs of fuels and consumables continue to rise, the ability to accurately measure the amount used in a process becomes significant in controlling costs and determining bottom line profits.

Combustible gas safety monitoring — infrared versus catalytic gas detectors
When designing a combustible gas safety monitoring system for oil and gas, petrochemical or other applications, how do you decide whether to use infrared or catalytic gas detector technology?

WIKA air2guide series of measuring instruments
WIKA has introduced the air2guide series of measuring instruments for mandatory filter and fan monitoring in ventilation and air conditioning (VAC) including the air2guideP mechanical differential pressure gauge, the air2guideP+E mechanical differential pressure gauge with analog display and analog output signal, and the air2guideF volume flow gauge.
Crius 3200 dissolved oxygen monitor
The Crius 3200 dissolved oxygen monitor offers an automatic in-situ calibration check as an option, making it able to save customers money by checking its calibration at user-defined time intervals.
Applied Analytics TDL-506 oxygen monitoring system
The Applied Analytics TDL-506 oxygen monitoring system uses surface-emitting laser technology to produce accurate, fast and stable oxygen measurements in even the most volatile process streams.
Gas mass flowmeter
The GF90 gas mass flow meter from Fluid Components International is designed for gas measurement applications, such as chlorinated water disinfection systems. As a solid state meter, the GF90 is designed to measure extremely low flow rates, and it is constructed of materials that make it impervious to highly corrosive, wet chlorine gas. Materials of construction for wetted parts include Hastelloy C as an option.
Carbon dioxide mass flow meter
The ST75 flow meter from Fluid Components International (FCI) is designed to deliver precise, direct mass flow measurement of gases in an easy to install insertion-style instrument that requires almost no maintenance over a long life.
HART air/gas flowmeter
The FlexMasster ST98 flowmeter series from Fluid Components International is now compatible with the HART communication protocol for use in large-scale process and plant automation systems.
In-situ self-verifying dissolved oxygen meter
Represented in Australia by Bintech Products, the UK-based instrumentation company Pi has claimed to have launched the world’s first in-situ self-checking dissolved oxygen meter.
Optical oxygen sensor
The InPro6970i from Mettler Toledo is designed for brewery applications. The optical oxygen sensors are easy and fast to maintain, leading to enhanced process safety and low cost of ownership.
Thermal mass flow meter for mining gas measurement
The ST51 mass flow meter from Fluid Components International has a non-clogging thermal dispersion mass flow sensing element design that operates over a wide flow range with low-flow sensitivity. This rugged design is suitable for wet, dirty coal mines and coal bed methane gas recovery environments.
Diode laser gas analyser
Siemens has further developed its TDL technology with the Sitrans SL diode laser gas analyser featuring an inline reference cell filled with a non-interfering reference gas allowing for a fast and non-contact measurement of gas concentrations in process or flue gases.
Gas chromatograph
The Sitrans CV process gas chromatograph based on micro-technology rapidly and precisely determines the calorific value of natural gas. The main use of Sitrans CV is for custody transfer of natural gas.
Hazardous area gas analyser
The flameproof housing of the EL3060 analyser fulfils the requirements of Category II 2G and due to its high safety standards can be used in plants with potentially explosive gas atmospheres of Zone 1 and Zone 2.
Multi-gas monitoring system
Thermo Fisher Scientific has announced the Model 70 FTIR Multi-Gas CEMS, a single analyser, continuous monitoring system capable of measuring up to 10 gases or more for almost any incineration or co-incineration application. The real-time integrated stack gas monitoring system possesses a high level of sensitivity, specificity and dynamic range, with a dynamically aligned interferometer that provides long- and short-term stability.
Flammability analyser
The PrevEx flammability analyser provides lower flammable limit monitoring for measuring flammable gases, vapours and mixtures of multiple solvents, in low oxygen, elevated temperature and inert atmospheres.
Oxygen sensor
ABB has announced that it has rounded off its product range of measuring technologies for the EasyLine series of continuous gas analysers with the addition of the zirconium dioxide sensor ZO23.

POGC joins ABB's Solution Provider Programme
POGC has joined the ABB Process Analytics Solution Provider Programme.

Siemens laser gas analyser saving lives
“As this was a first-time application for the LDS6 in submerged arc furnaces on a global scale, great caution had to be taken in order to guarantee its accuracy, sensitivity, reproducibility, reliability and maintainability,” Welsh said.

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