Brahma 24283971 SM192N.2 control box

Brahma SM192N.2 is a microprocessor controller ("flame safeguard") for automatic control of ignition, flame monitoring, and safe operation of two-stage atmospheric gas burners. The device is suitable for burners both with natural draft (without fan) and with forced air supply (with fan in the combustion circuit). Model SM192N.2 (art. 24283971 / 246.124.147) is designed for intermittent operation and is widely used in various heat-generating equipment: two-stage gas heating and combined boilers (domestic and industrial); heat guns, hot air generators; air heaters, infrared heaters; water heaters, process ovens. Main functions and features: Two-stage burner control: the controller provides sequential start of first and second power stages, optimizing fuel consumption by operating at partial load and reducing on/off cycles. Fully automated combustion cycle: the unit independently performs the sequence: check for absence of false flame → pre-purge → ignition on first stage → ramp to full power (if needed) → flame monitoring → safe shutdown upon flame loss. Ionization flame detection: flame detection via ionization electrode (rectification effect). Reaction time on flame loss is less than 1 second, meeting strict safety standards EN 298. High safety class: manual reset lockout – in any abnormal situation (no flame, ionization circuit break, ignition failure) the unit goes into safety lockout. Restart possible only after eliminating the cause and pressing the Reset button. Non-volatile b