The FLAME BACK DETECTOR, is a new solution devised to detect sudden increases in temperature caused by backfire, which developes in the feed pipes of the burners/injectors.
The principle of intervention is based on a PT100, that is indirectly hit by a rise in temperature, which modifes the value of the resistance. This resistance difference is elaborated by PLC, which generates an alarm signal. The detect time is 2 sec.