Product News
k2001 offers users best performance in measurement of nitrogen in argon and helium
Featuring a unique plasma emission detector design, the k2001 benefits from an upgraded chemical interference-free design that offers a guaranteed 10 ppb resolution and low sample flow that works as low as 20 sccm. An exclusive autocalibration feature eliminates the need for the user to toggle calibration gases, enabling the k2001 to avoid unnecessary downtime and gas contamination.
Easy to operate and equipped with self-diagnostic system software, the k2001 offers users full Ethernet connectivity options to include remote control of the analyser via a local network or internet access. Users can control the k2001 from any location or if required allow support technicians to assist in the analyser's start-up or any phase of diagnostics, without being required on-site. This flexibility and ease-of-use makes the k2001 suitable for monitoring a range of specialist industries including air separation, steel manufacture, chemical plants, gas management, welding gas control, air separation plants, argon purification plants, specialist gas laboratories and process control.
CO2, CH4 and CO measurements extend Servomex 1900IR capabilities, especially for use in LNG, natural gas and GTL plants
Servomex Group is pleased to announce that their recently launched Servomex 1900IR gas analyser now has a wider choice of measurement ranges to meet the needs of hazardous area analysis for CO2, CH4 and CO.
While the existing model has ranges of 0-10% and 0-25% for CO2, the latest offering provides ranges of 0-1%, 0-2.5%, 0-5% and 0-50% for CO2 and 0-5% for CH4 and CO. In addition, solvent-resistant variants of the analyser are available for CO2 measurement ranges of 0-1%, 0-2.5%, 0-5% and 0-10%, enabling analysis in natural gas where there are high levels of H2S. Typical applications will be found in natural gas processing, LNG and GTL plants - such as for monitoring pipelines, inerting, scrubbers and blending operations. Other opportunities exist in refineries, HyCO plants, ethylene plants, formaldehyde plants and VAM plants.
Superior performance in a proven package - Servomex launches digital version of 1900 series oxygen analyser
Servomex’s 1900 series just got better with the launch of a digital version of its successful oxygen analyser the Servomex 1900. The new analyser offers all of the advantages of the analogue 1900 oxygen analyser - such as simplicity of operation, accuracy and speed of response - but with the additional benefits associated with digital signal processing. The new 1900 Digital analyser therefore delivers improved performance through onboard temperature control, as well as enhanced diagnostics and easy integration within process plant. All of this comes in a package that is certified for use in hazardous areas and with flammable samples with no purge required.
Developed in response to requests from customers for a simple-to-use digital oxygen analyser that offers long-term reliability and a low cost-of-ownership, the 1900 Digital incorporates proven Servomex digital paramagnetic sensing technology in conjunction with electronics and software from the company's 5000 series analysers.
End of support for old Servomex range
Servomex is announcing the end of support for a range of analysers at the end of 2005. These include the Models: 540A, 541A, 590A, 700B, 756A, 1175 O2 and the 1490 emissions analyser. Please note that the 756A, 1175 O2 Models have already ended support.
The current alternatives for these analysers are:
End of Support Model | Measurement | Replacement |
Model 540A | Industrial Paramagnetic Dry Gas O2 | |
Model 541A | Industrial Paramagnetic Wet Gas O2 mainly for marine inert gas applications | Servomex 1800 MV or analysers above |
Model 590A | Industrial Paramagnetic Wet Gas O2 | Servomex 1800 MV |
Model 700B | Flue Gas | |
Model 756A | Trace O2 | |
Model 1175 | O2 | |
Model 1490 | Emissions | |
For more information about how we can meet your gas analysis needs, or options to upgrade unsupported analysers to our current models, please contact Servomex on +44 1892 652181 or e-mail info@servomex.com.
Company News
Servomex Acquires Contrôle Analytique
CROWBOROUGH, East Sussex, 8 November 2007 Servomex, a leading supplier of gas analysis solutions to the refining, chemical and petrochemical, industrial gas and power generation industries, announces that it has acquired the business of Contrôle Analytique, a leading provider of specialist gas analysis products. The acquisition will enable Servomex to increase its product offering in the global industrial gas market and also provides an opportunity for the company to meet the needs of customers in the semiconductor market.
Click here to read the announcement in full
Technical Features
The importance of measuring combustibles accurately to determine "breakthrough" when controlling power plants on oxygen levels
Although the science of generating power by burning fossil fuels is well understood, the reality remains that it is difficult to control the air-fuel ratio at the optimum level for maximum fuel efficiency. Too little oxygen results in unburnt fuel in the flue gases and excessive particulates (smoke, measured as opacity), while too much oxygen leads to cooler burning, a loss of fuel efficiency and an increase in emissions of oxides of nitrogen and sulphur (NOx and SOx). As opacity is often closely regulated, it is undesirable to emit excessive smoke so plants typically err on the side of excess oxygen. Those operators that successfully optimise the process often see an improvement of fuel efficiency in the order of 0.5 per cent, which can make a substantial difference to the plant's profitability.
Click here to find out how mastering this measurement can produce long term profits on your plant.
How infrared photometry succeeds where other technologies find gas analysis difficult
Traditional gas analysis applications are well catered for in terms of reliable, cost-effective technologies. For example, measurement of CO, CO2 and hydrocarbons can be carried out with analysers based on thick film or electrochemical sensors. Some of these technologies have limitations when the sample gas is flammable, corrosive or toxic. In which case alternative technologies have to be adopted, and infrared photometry can be adaptable to demanding process applications, depending on the detailed design of the analyser.
Infrared analysis works on the principle that molecules of many gases absorb energy in the infrared region of the electromagnetic radiation spectrum. Specific wavelengths of IR energy cause the bonds within the molecules to vibrate. Each type of molecule will be excited by different wavelengths and, therefore, absorb energy from infrared light at their specific wavelengths when it passes through the gas sample. However, the important point is that each gas has a unique absorption spectrum - rather like a photochemical fingerprint. So by passing infrared light through a sample containing the target gas and by measuring the reduction in the received energy, it is possible to gain an indication of the gas concentration in the sample.
Turning this principle into a gas analyser suitable for use within an industrial environment is highly complex and a number of alternative approaches can be used to overcome particular difficulties.
Click here for this technical article in full. |
Making the right choice for high dew point analysis
When specifying a process gas analyser and associated sample system one of the first decisions to make is whether the analysis should be done on a 'wet' basis or a 'dry' basis. While making the measurement on a wet basis will give the true gas concentration, it requires the sample system and analyser cell to operate at a higher temperature in order to avoid problems associated with condensation. On the other hand, to make the analysis on a dry basis - at a lower temperature - requires a sample system that removes the condensates, and the reading for the gas concentration needs to be adjusted to take account of those condensates.
David Fahle, VP of Hydrocarbon Processing, states “Clearly both approaches have their advantages and disadvantages, but careful consideration of a particular application usually steers the specifier towards one basis in preference to the other. In a recent visit to key customers in the Middle East, it was clear that careful evaluation of the total stream composition needed to be looked at when specifying and installing a new gas analysis system.”
Click here to get an in depth perspective on choosing the right analysis system