Boîtier de commande Brahma 24284231 SM192N.2

Brahma SM192N.2 is a microprocessor controller ("burner management system") for automatic control of ignition, flame monitoring and safe operation of atmospheric two-stage gas burners. The device is suitable for burners with natural draft (without fan) and forced air supply (with fan). The modification with article 24284231 (and alternative 246.124.133) has a pre-purge time of 10 seconds and a waiting time of 10 seconds, making it an ideal choice for equipment requiring extended combustion chamber purging before ignition. Application area includes: two-stage gas heating and combined boilers; heat guns, hot air generators; air heaters, infrared heaters; water heaters, process furnaces. Main functions and features: Two-stage burner control: The controller provides sequential start of the first and second power stages, saving fuel by operating at partial load and reducing the number of on/off cycles. Full automation of the combustion cycle: The unit independently performs the sequence: check for absence of false flame → pre-purge (10 s) → ignition at first stage → ramp to full power → combustion monitoring → safe shutdown. Ionization flame monitoring: Flame detection via ionization electrode with response time less than 1 second on flame loss. High safety class: Manual reset lockout — emergency restart only after eliminating the cause and pressing the Reset button. Non-volatile lockout — prevents automatic restart after power restoration. 2 independent safety contacts for redundancy of critical circuits. Built-in varistor and protection