Fixed Gas Detection
Fixed Gas Detection systems mount at specific locations to continuously monitor the atmosphere without human intervention. The category includes fixed gas sensors in all technologies, gas detection controllers, H2S detectors, oxygen monitors, Lower Explosive Limit (LEL) detectors, and ammonia and chlorine detectors. The systems serve refineries, petrochemical plants, water treatment, and laboratories.
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About this category
Fixed sensors differ in sensing technology by gas type. Catalytic bead sensors detect combustibles (LEL) such as methane and propane. Electrochemical sensors detect toxic gases at ppm concentrations such as H2S and CO. Infrared (IR) sensors detect hydrocarbons and CO2 and work in oxygen-depleted atmospheres. Semiconductor sensors cover multiple gases and offer an economical option. Controllers consolidate signals from several sensors, manage alarm thresholds, and trigger actions such as equipment shutdown or ventilation start. H2S detectors serve oil platforms and gas fields where 10 ppm is dangerous. Oxygen monitors serve inert-gas laboratories and enclosed areas, watching for O2 below 19.5% or above 23.5%. Ammonia and chlorine detectors serve refrigeration plants and water-treatment facilities. An engineering survey determines sensor placement; periodic inspection is mandatory. Specifications follow ATEX, IECEx, and IEC 60079-29.
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Fixed sensors differ in sensing technology by gas type. Catalytic bead sensors detect combustibles (LEL) such as methane and propane. Electrochemical sensors detect toxic gases at ppm concentrations such as H2S and CO. Infrared (IR) sensors detect hydrocarbons and CO2 and work in oxygen-depleted atmospheres. Semiconductor sensors cover multiple gases and offer an economical option. Controllers consolidate signals from several sensors, manage alarm thresholds, and trigger actions such as equipment shutdown or ventilation start. H2S detectors serve oil platforms and gas fields where 10 ppm is dangerous. Oxygen monitors serve inert-gas laboratories and enclosed areas, watching for O2 below 19.5% or above 23.5%. Ammonia and chlorine detectors serve refrigeration plants and water-treatment facilities. An engineering survey determines sensor placement; periodic inspection is mandatory. Specifications follow ATEX, IECEx, and IEC 60079-29.
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