Brahma Microprocessor-based controller CM12F 37103208

The Brahma CM12F is a microprocessor-based controller for automatic ignition control, flame monitoring, and safe operation of two-stage atmospheric gas burners in intermittent mode. It operates on 220–240 V and uses ionisation flame detection with a flame loss reaction time of less than 1 second. The unit features manual lockout reset and is certified to EN 298:1993/2003 and CE. Its body is made of self-extinguishing plastic, and it has a protection class of IP00. The controller has a service life of 250,000 cycles under maximum load.

Control boxes of this type are selected by matching the supply voltage, flame detection method, and burner stage configuration. They are typically mounted on a DIN rail or by screws in any position, but require installation in a protective enclosure due to IP00 rating. Before ordering, verify the model's compatibility with the burner's gas type and air supply (forced draft). Ensure the flame detector type (ionisation) matches the existing electrode.

Common failures include lockout due to no flame, open ionisation circuit, or ignition failure, requiring manual reset after addressing the cause. Equipment may fail to start or shut down unexpectedly. Check the ionisation electrode for contamination or wear, and verify the internal fuse and varistor integrity.