Thermo Scientific's laser based CO2 analyser
July 2012
Analytical Instrumentation & Environmental Monitoring
The ability to monitor greenhouse gases in the mid-infrared spectrum is desirable as simple, direct absorption approaches can be used to access many species with high specificity, sensitivity and accuracy. The Thermo Scientific IRIS 4100 mid-IR laser based CO2 analyser uses state of the art mid-infrared laser absorption spectroscopy to measure carbon dioxide. The instrument is capable of providing continuous, real-time measurements that are highly precise and accurate.
Using unique difference frequency generation (DFG) technology, the analyser is capable of providing measurements in the mid-infrared spectral region. Accessing carbon dioxide in the mid-infrared is advantageous, as the associated line strength is approximately 10 000 times stronger than in the near-infrared region, as displayed by the basic telecom laser output. DFG technology is based on the principle of two telecom laser sources that are combined in a single optical fibre. The combined lasers are then focused into a non-linear periodically poled lithium niobate (PPLN) crystal. The signal is then transferred through an optical cell.
The laser, located within the optical cell of the IRIS 4100 analyser, is approximately 100 times narrower in frequency than the intrinsic absorption line-width and sweeps continuously through the associated lines at a repetition rate of 500 Hz. The single pass within the cell reduces the risk of mirror contamination and simplifies maintenance requirements.
This single box solution, featuring an internal pump, is designed for continuous operation and can be used in conjunction with external sampling interfaces. In addition, the IRIS 4100 provides numerous diagnostic monitoring features such as temperature, pressure, and line strength. It also includes web-based remote access to enable continuous monitoring of system performance and health in the field.
Further reading:
Importance of gas analysis in the petrochemical industry
Elemental Analytics
Analytical Instrumentation & Environmental Monitoring
Gas analysis plays a critical role in petrochemical operations, supporting process optimisation, product quality and plant safety. As an experienced and expert gas analysis supplier, Elemental Analytics can provide the correct analyser and sample system package to meet individual plant requirements.
Read more...
Fully integrated standalone thunderstorm warning system
Senseca
Sensors & Transducers Analytical Instrumentation & Environmental Monitoring
Senseca South Africa has introduced its BTD-1 fully integrated, standalone thunderstorm warning system, which detects lightning by monitoring the background quasi-electrostatic field. The system can generate alerts before the first lightning strike, with a detection raterange of up to 83 km.
Read more...
Environmental monitoring with testo Saveris 1
Analytical Instrumentation & Environmental Monitoring
The testo Saveris 1 environmental monitoring system has been in continuous use since 2010 at Jungbunzlauer, a biotechnology company in Germany, providing seamless temperature and humidity data for audit-ready, GxP-compliant processes across laboratories, warehouses and production areas.
Read more...
Reliability restored through systemic vibration analysis
Wearcheck
Analytical Instrumentation & Environmental Monitoring
Condition monitoring specialist, WearCheck uses a variety of testing techniques to enhance reliability in machinery components and prevent failures.
Read more...
Meteorological data logger with up to 32 analogue sensors
Senseca
Analytical Instrumentation & Environmental Monitoring
Senseca has introduced its advanced data acquisition system for environmental monitoring, which has a universal data logger for up to 32 analogue, pulse and smart digital sensors.
Read more...
Yokogawa’s free chlorine analyser is gold standard for water treatment utilities
Yokogawa South Africa
Analytical Instrumentation & Environmental Monitoring
One of the key factors in ensuring safe drinking water is the accurate monitoring of free chlorine residuals. This is where advanced online analysers, such as Yokogawa’s FC800 free chlorine analyser, are becoming increasingly valuable for water treatment operators and municipal utilities.
Read more...
Cooling tower bleed control
Analytical Instrumentation & Environmental Monitoring
Cooling towers rely on evaporation to remove heat, but this process also concentrates dissolved solids in the system. Left unmanaged, this buildup can lead to scaling, corrosion and fouling, reducing efficiency and increasing maintenance costs.
Read more...
Expanded test laboratory provides polymer users with more information
igus
Analytical Instrumentation & Environmental Monitoring
igus has expanded its international testing facilities to accommodate its increasing product portfolio and enable continuous improvement of its product quality.
Read more...
Filters for zero-alcohol wine
Parker Hannifin - Sales Company South Africa
Analytical Instrumentation & Environmental Monitoring
The market for zero-alcohol wine is creating fresh opportunities for wine producers, but processing these products creates new contamination challenges. Technical support from an established filtration specialist, such as Parker, can help wineries in overcoming the challenges posed by the increased risk of contamination.
Read more...
Remote monitoring solution for sewage plants
ifm - South Africa
Analytical Instrumentation & Environmental Monitoring
With ifm’s remote monitoring solution, you can visualise the condition of the submersible pumps in your sewage plant and diagnose issues before they become serious problems.
Read more...
printer friendly version