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What is Gas Explosion Detector about?
The gas explosion detector utilizes a catalytic combustion (pellistor) principle to detect flammable gas concentrations before ignition. It operates through a Wheatstone bridge circuit, where the resistance change in an active bead due to gas contact leads to an output signal proportional to gas concentration. Alarms are triggered at 20% and 60% of the Lower Explosive Limit (LEL) to indicate pre-alarm and main alarm conditions, respectively.
- Author
- abmosh6
- Language
- EN