The unit draws combustible or toxic gases at 0.05 to 1 lpm from monitored areas to a gas detector, making it easier and cost effective to measure potentially hazardous gases in areas that are too remote, inaccessible, cold, hot or wet for direct sensor monitoring. It supplies gas for up to three gas detectors, which is useful for monitoring multiple gases in a single line. A low flow indicator informs the user if flow is insufficient for gas detection. The module also includes a trouble relay that provides a local signal indication of the low flow condition. It reduces plant operating costs by simplifying operation and maintenance, and its rugged design and 316-stainless steel construction make it suitable for gas detection service in a variety of harsh industrial environments. Areas particularly suited for monitoring include ducts carrying combustible or toxic gas, wet wells, sewage dryers, printing drying ovens, and storage tanks. The unit is available in two configurations: an aspirated model that is used with a compressed air source and a DC pump module. The aspirated model is designed for use with instrument grade aspirator air, up to a max aspirator pressure of 30 psig (206 kPa).
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