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Comment Environment, Health, Safety & Security

Open-path gas detectors warn workers of hazards

By Mary Page Bailey and Gerald Ondrey |

This company has launched two open-path gas detectors (photo) that operate in extreme environments, including heavy vibration conditions and operating temperatures ranging from –55 to 65°C. The Rosemount 935 combustible gas detector uses infrared (IR) technology to detect a wide range of highly combustible hydrocarbon gases, including methane, propane and ethylene. The Rosemount 936 toxic gas detector uses ultraviolet (UV) technology to detect H2S and ammonia — two of the most common toxic gases in industrial facilities. Leveraging xenon flash technology, the Rosemount 936 enables greater installation flexibility versus the tunable diode laser (TDL) technology, which needs perfect alignment between beam and receiver for high reliability. With nearly twice the tolerance for misalignment than TDL, users can save up to 30% of installation time and streamline project schedules, says the company. — Emerson, Shakopee, Minn.

www.emerson.com

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