(IP) is designed to detect fires in closed rooms of various buildings and structures at enterprises, the production of which is associated with the possibility of formation of explosive mixtures of flammable gases and vapours with air, belonging to category IIA, IIB and IIC temperature groups T1-T6 and is marked: 0Ex ia op is IIC T6 Ga X. The detector transmits to the control panel analogue information on the current smoke level, ambient temperature and dust level and analyses the physical characteristics of fire factors and their dynamics. The detector has an optical smoke chamber (smoke channel) and reacts to the controlled fire sign (CFS) - products of combustion as an optical smoke detector
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