Coverage radius of the oxygen detector
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May I ask about the coverage radius of the oxygen detector? GBT50493 does not specify this clearly; it only recommends the use of electrochemical detectors. Does that mean we should proceed based on the radius associated with toxicity?
This post was last edited by Bi Ren on 2020-8-5 at 13:41, with the latest version of GBT 50493-2019 – Design Code for Detection and Alarm of Flammable and Toxic Gases in Petrochemical Industries attached
Is there no one in the instrumentation and automation department?
For toxic gases, the distance between two gas detectors should be no more than 4 meters. But standard construction practices usually designate specific areas for this purpose; otherwise, the specifications would require a fixture to be installed every four meters throughout the entire room. The new standard is currently recommended rather than being mandatory – it seems that it’s not required by law, and it’s sufficient for the designers and builders to reach an agreement together.