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Gas analysis made easier for high-dust areas

By Mary Page Bailey |

A collaboration between Servomex (Surrey, U.K.; www.servomex.com) and FLO2R (Hadsund, Denmark; www.flo2r.com) has resulted in one of the industry’s first laser-based gas-analysis system for use in high-dust environments. Tunable diode laser (TDL) technology provides a much more rapid response than conventional extractive systems for gas analysis, but it historically has been infeasible for use in applications where dust is present, since TDL systems rely on light visibility, and the presence of dust can inhibit laser transmittance, says Karsten Brink Floor, managing director of FLO2R. The new Hybrid 600 system (diagram) incorporates optics that minimize light loss in dusty conditions and also a built-in air knife that protects optic elements from process gases. Furthermore, dust-heavy applications typically require large ducts, and installation of laser systems is usually limited to smaller duct sizes, but Floor explains that the new Hybrid 600 system uses a unique single-flange mounting configuration that enables its setup in ducts of any size, in applications with dust loads as high as 200 g/m3. Floor envisions that the Hybrid 600 system will fulfill two critical gas-analysis needs — safety interlocking applications and emissions…
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