New CO2, CH4 and CO Measurements for Hazardous Areas

Servomex Group (UK) 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 010% and 025% for CO2, the latest offering provides ranges of 01%, 02.5%, 05% and 050% for CO2 and 05% for CH4 and CO. In addition, solventresistant variants of the analyser are available for CO2measurement ranges of 01%, 02.5%, 05% and 010%, enabling analysis in natural gas where there are high levels of H2S.

The 1900IR is suitable for use with flammable samples in Zone 1 hazardous areas (ATEX Category 2) without the need for a purge. Furthermore, Servomex has applied its infrared sensing technology in such a way as to give reliable, accurate results with low installation, maintenance and running costs. Accuracy is better than 1% FSR, response time (T90) is less than 10 seconds, repeatability is better than 1% FSR and zero drift is less than 1% FSR per week.

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.

Ease of use is assured by virtue of the keypaddriven user interface. In addition, the analyser's casing is divided into two compartments, which enables the sample side compartment to be approved as intrinsically safe sample: significantly reducing the hazards present when working using a 'hot work permit'. On the other side the flameproof/explosionproof terminals compartment enables the instrument to be located in hazardous areas without the need for a purge. These features help to make the instrument economical to install, operate and maintain, resulting in a low longterm cost of ownership.